• Histologically or cytologically-confirmed Ewing sarcoma, rhabdomyosarcoma, neuroblastoma, or osteosarcoma
• Disease progression after prior therapy in locally advanced or metastatic setting
• Measurable or evaluable disease based on the Response Evaluation Criteria in Solid Tumors (RECIST v1.1) criteria
• Age 12 months to <21 years
• Adequate bone marrow reserves, hepatic function, and renal function
• Recovered from effects of any prior surgery or cancer therapy
• Patients 18 years or older will provide written consent. A parent or legal guardian of a patient <18 years of age will provide informed consent and patients 11 to 18 years of age will provide written assent or as per participating institutional policy.
• Clinically significant gastrointestinal disorders
• NYHA Class III or IV congestive heart failure, ventricular arrhythmias or uncontrolled blood pressure
• Active infection or unexplained fever
• Known hypersensitivity to any of the components of MM-398 or other liposomal products
• Recent Investigational therapy
• Pregnant or breast feeding; females of child-bearing potential must test negative for pregnancy at the time of enrollment

• Feasibility Phase: Patients must be < 21 years of age at the time of enrollment; please note: the feasibility phase is complete, effective with amendment #1
• Efficacy Phase: Patients must be =< 40 years of age at the time of enrollment
• Patients with newly diagnosed RMS of any subtype, except adult-type pleomorphic, based upon institutional histopathologic classification, are eligible to enroll on the study based upon stage, group, and age, as below
• RMS types included under embryonal rhabdomyosarcoma (ERMS) include those classified in the 1995 International Classification of Rhabdomyosarcoma (ICR) as ERMS (classic, spindle cell, and botryoid variants), which are reclassified in the 2013 World Health Organization (WHO) classification as ERMS (classic, dense and botryoid variants) and spindle cell/sclerosing RMS (encompassing the historical spindle cell ERMS variant and the newly recognized sclerosing RMS variant); classification of alveolar rhabdomyosarcoma (ARMS) in the 2013 WHO classification is the same as in the ICR and includes classic and solid variants
• ERMS
• Stage 1, group III (non-orbit)
• Stage 3, group I/II
• Stage 2/3, group III
• Stage 4, group IV, < 10 years old
• ARMS:
• Stages 1-3, groups I-III
• Specimen Submission: Patients must have sufficient tissue available for the required biology study
• Lansky performance status score >= 50 for patients =< 16 years of age; Karnofsky performance status score >= 50 for patients > 16 years of age
• Peripheral absolute neutrophil count (ANC) >= 750/uL
• Platelet count >= 75,000/uL
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 or a serum creatinine based on age/gender as follows:
• 1 month to < 6 months old: 0.4 mg/dl (male), 0.4 mg/dl (female)
• 6 months to < 1 year old: 0.5 mg/dl (male), 0.5 mg/dl (female)
• 1 to < 2 years old: 0.6 mg/dl (male), 0.6 mg/dl (female)
• 2 to < 6 years old: 0.8 mg/dl (male), 0.8 mg/dl (female)
• 6 to < 10 years old: 1 mg/dl (male), 1 mg/dl (female)
• 10 to < 13 years old: 1.2 mg/dl (male), 1.2 mg/dl (female)
• 13 to < 16 years old: 1.5 mg/dl (male), 1.4 mg/dl (female)
• >= 16 years old: 1.7 mg/dl (male), 1.4 mg/dl (female)
• Patients with an elevated serum creatinine due to obstructive hydronephrosis secondary to tumor are still eligible; however, patients with urinary tract obstruction by tumor must have unimpeded urinary flow established via diversion (i.e. percutaneous nephrostomies or ureteric stents) of the urinary tract
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age
• All patients and/or their parents or legal guardians must sign a written informed consent.
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
• Patients who have previously received temsirolimus, another mTOR inhibitor, or any other investigational agent
• Patients who have received any chemotherapy (excluding steroids) and/or RT prior to this enrollment
• Patients with uncontrolled hyperglycemia
• Patients with uncontrolled hyperlipidemia
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation and for at least 3 months after treatment is completed
• Female patients who are pregnant are not eligible since fetal toxicities or teratogenic effects have been noted for several of the study drugs; Note: A pregnancy test is required for female patients of childbearing potential prior to study entry
• Lactating females who plan to breastfeed their infants are not eligible

Inclusion Criteria-Part A: Subject must meet all of the following applicable inclusion criteria to participate in this study:
• Patients must have histologically confirmed advanced RCC (any histology). Collecting duct tumors and tumors originating from the renal pelvis or upper urinary tract are considered of urothelial origin and are excluded from this protocol.
• Patients must have at least one measurable site of disease, per RECIST 1.1, that has not been previously irradiated. If the patient has had previous radiation to the marker lesion(s), there must be evidence of progression since the radiation.
• Archival tissue of a metastatic lesion obtained within 1 year prior to study registration (within 4 weeks preferred) and tumor tissue from nephrectomy is required if available. In addition to archival tissue of a metastatic lesion and nephrectomy, patients must have at least one site of disease (not including bone metastases) accessible for biopsy. If biopsy/resection of a new lesion or primary tumor and slow freezing of fresh tissue for single cell RNAseq study (as specified in the CLM) is not feasible, the subject is not eligible for the study. All biopsies must be core needle or excisional. Fine needle aspirate is not acceptable. NOTE: The tissue collected from a surgical resection or multiple core biopsies of either a metastatic lesion or primary tumor for the slow freezing of fresh tissue after the patient has signed consent for the study could also be used for collecting the FFPE specimens.
• ECOG performance status 0-2.
• Age ≥ 18 years.
• Have signed the current approved informed consent form.
• Patients must have adequate organ function within 14 days prior to study entry as evidenced by screening laboratory values that must meet the following criteria:
• Hematological:
• White blood cell (WBC) ≥ 2000/µL
• Absolute Neutrophil Count (ANC) ≥ 1500/μL
• Platelets (Plt) ≥ 100 x103/μL
• Hemoglobin (Hgb) > 9.0 g/dL (with or without transfusion)
• Renal:
• Serum Creatinine ≤ 1.5 x ULN; if creatinine > 1.5, subject must demonstrate CrCl as outlined below.
• Calculated creatinine clearance ≥ 40 mL/min using Cockcroft-Gault formula
• Hepatic:
• Bilirubin ≤ 1.5× upper limit of normal (ULN); Except subjects with Gilbert Syndrome, who can have total bilirubin < 3.0 mg/dL
• Aspartate aminotransferase (AST) ≤ 3 × ULN
• Alanine aminotransferase (ALT) ≤ 3 × ULN
• Patients should not have received prior systemic therapy for metastatic RCC. Prior radiotherapy must have been completed at least 2 weeks prior to the administration of study drug. Patients must be 2 weeks from prior major surgery and 1 week from pre-treatment biopsy. Prior systemic adjuvant therapy (excluding with PD1 or CTLA4 pathway blockers) is allowed if treatment completed > 12 months previously.
• Women of childbearing potential (WOCBP) must use appropriate method(s) of contraception. WOCBP should use an adequate method to avoid pregnancy for 5 months after the last dose of study drug. NOTE: Contraception is not required for male participants.
• Women of childbearing potential must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) during screening for registration purposes. This pregnancy test should be repeated within 24 hours prior to the start of nivolumab. NOTE: "Women of childbearing potential" is defined as any female who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not postmenopausal. Menopause is defined clinically as 12 months of amenorrhea in a woman over 45 in the absence of other biological or physiological causes. In addition, women under the age of 55 must have a documented serum follicle stimulating hormone (FSH) level less than 40 mIU/ml.
• Women must not be breastfeeding.
• Be willing and able to comply with this protocol.
• Patients are excluded if they have active brain metastases or leptomeningeal metastases. Subjects with brain metastases are eligible if metastases have been treated and there is no magnetic resonance imaging (MRI) evidence of progression for 2 weeks of more after treatment is complete and within 28 days prior to the first dose of nivolumab administration. There must also be no requirement for immunosuppressive doses of systemic corticosteroids (> 10 mg/day prednisone equivalents) for at least 2 weeks prior to study drug administration.
• Patients with controlled brain metastases are allowed on protocol if they had solitary brain metastases that was surgically resected without recurrence or treated with SRS without progression x 4 weeks.
• Patients should be excluded if they have an active, known or suspected autoimmune disease. Subjects are permitted to enroll if they have vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger.
• Patients should be excluded if they have a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
• As there is potential for hepatic toxicity with nivolumab or nivolumab/ipilimumab combinations, drugs with a predisposition to hepatoxicity should be used with caution in patients treated with nivolumab-containing regimen
• Active infection requiring systemic therapy
• Has any other medical or personal condition that, in the opinion of the site investigator, may potentially compromise the safety or compliance of the patient, or may preclude the patient's successful completion of the clinical trial
• Patients should be excluded if they are positive test for hepatitis B virus surface antigen (HBV sAg) or hepatitis C virus ribonucleic acid (HCV antibody) indicating acute or chronic infection
• Patients should be excluded if they have known history of testing positive for human immunodeficiency virus (HIV) or known acquired immunodeficiency syndrome (AIDS)
• Allergies and Adverse Drug Reaction
• History of allergy to study drug components
• History of severe hypersensitivity reaction to any monoclonal antibody
• Known additional malignancies within the past 3 years (excluding basal of squamous cell skin cancers, CIS or localized prostate cancer that has been treated or is being observed) Inclusion/Exclusion Criteria- Part B
• Must meet eligibility criteria for initiation of Part A with the exception of being allowed to have prior nivolumab in Part A of this protocol
• Must have evidence of either RECIST 1.1 defined Disease Progression or Stable Disease 1 year after initiating nivolumab therapy
• Tumor biopsy prior to combination treatment is mandatory. If a biopsy/resection of a new lesion or primary tumor and slow freezing of fresh tissue for single cell RNAseq study (as specified in the CLM) is not feasible, the subject is not eligible for the study. All biopsies must be core needle or excisional. Fine needle aspirate is not acceptable.
• Must not have had a Grade ≥ 3 irAE on nivolumab monotherapy
• Must not have untreated brain metastases
• Must not have had major surgery or radiation therapy within 14 days of starting study treatment
• Must not have active autoimmune disease
• Must not have a concurrent medical condition requiring use of systemic corticosteroids with prednisone >10 mg per day
• Must not have had prior systemic therapy for Stage IV RCC (except for nivolumab as part of part A of this protocol)
• Prior solid organ or stem cell transplant

• Adults, age 60 years or older at the time of diagnosis
• Subjects or their legal representative must be able to understand and provide written informed consent
• Cohort Inclusion Criteria
•Group A: Subjects must have previously untreated acute myeloid leukemia (AML) according to the WHO classification with no prior treatment other than hydroxyurea. Prior therapy for myelodysplastic syndrome (MDS), myeloproliferative syndromes (MPD), or aplastic anemia is permitted but not with hypomethylating agents.
• Cohort Inclusion Criteria
•Group B: Subjects must have relapsed or refractory AML according to the WHO classification. For study purposes, refractory AML is defined as failure to ever achieve CR or recurrence of AML within 6 months of achieving CR; relapsed AML is defined as all others with disease after prior remission. (Group B is not currently recruiting. Expected to begin recruiting in 3rd quarter 2017.)
• Isolated myeloid sarcoma (meaning, patients must have blood or marrow involvement with AML to enter the study)
• Acute promyelocytic leukemia
• Symptomatic central nervous system (CNS) involvement by AML
• Signs of leukostasis requiring urgent therapy
• Disseminated intravascular coagulopathy with active bleeding or signs of thrombosis
• Patients with psychological, familial, social, or geographic factors that otherwise preclude them from giving informed consent, following the protocol, or potentially hamper compliance with study treatment and follow-up
• Any other significant medical condition, including psychiatric illness or laboratory abnormality, that would preclude the patient participating in the trial or would confound the interpretation of the results of the trial

1. Subjects with a diagnosis of iobenguane avid, high-risk neuroblastoma based on Revised INRC criteria at the time of study enrollment with recurrent or progressive disease at any time prior to enrollment, regardless of overall response to frontline therapy, where frontline therapy includes a minimum of 4 cycles of induction therapy at any time prior to enrollment. 2. May have had prior 131I-MIBG therapy, provided: 1. It has been at least 6 months from the date of last 131I-MIBG ; 2. Response was other than progressive disease on first restaging after 131I-MIBG ; 3. Prior 131I-MIBG was given as monotherapy and not in combination with systemic anticancer agents; 4. Cumulative lifetime dose of 131I-MIBG at enrollment does not exceed 18 mCi/kg. 3. All soft tissue lesions identified on CT/MRI scans must be iobenguane avid lesions on an (123I)-iobenguane scan, or 1. any progressive non-iobenguane avid lesion is proven by biopsy to be a non-neuroblastoma lesion. 2. any other non-avid lesion is comprised of a fibrotic or scarred mass as shown by routine imaging and confirmed by the investigator. 4. Adequate cryopreserved autologous peripheral blood stem cells or bone marrow (at least 2 aliquots of 2.0 × 10exp6 CD34/kg at the time of study enrollment). 5. If a male, must agree to use an adequate contraception method as deemed appropriate by the Investigator (e.g., vasectomy, condoms) or partner using effective contraception and to not donate sperm during the study and for 90 days after receiving the last dose of study drug. 6. If a female of childbearing potential, have a negative serum pregnancy test result prior to each dosing and, if sexually active, be practicing an effective method of birth control [e.g., intrauterine device, double-barrier method (i.e., diaphragm, or a cervical cap) with intravaginal spermicidal foam, cream or gel], or male partner sterilization throughout the study. 7. Age at study entry ≥1 year. 8. Previous platelet transfusions are permitted, as long as the subject has a platelet count ≥50,000/μL without transfusion support for at least 1 week. 9. Subjects must have a minimum pulse oximetry measurement of at least 94% at baseline. 10. An absolute neutrophil count ≥750/μL without growth factor for 5 days. 11. Liver function parameter results: total bilirubin ≤2 × upper limit of normal for age, and Serum alanine aminotransferase (glutamic-pyruvic transaminase) and serum aspartate aminotransferase (glutamic-oxaloacetic transaminase) ≤ 10 times the upper limit of normal (for all sites, the upper limit of normal for alanine aminotransferase is defined as 45 U/L). 12. Normal thyroid function as measured by T4 or TSH or have abnormal results that are not considered clinically important by the Investigator or may be receiving levothyroxine. 13. Cardiac Function: shortening fraction of ≥ 27% by echocardiogram or ejection fraction ≥ 50% documented by echocardiogram or radionuclide angiogram within 1 month prior to Visit 1 (Baseline). 14. Karnofsky Performance Status (for subjects >16 years of age) or the Lansky Performance Status Performance Status (for subjects 1 to 16 years of age) ≥50%. 15. Full recovery from the toxic effects of any prior therapy. 16. Coagulation Function: 1. International Normalized Ratio (INR) < 1.5 2. Partial thromboplastin time (PTT) < 1.5 times upper limit of normal. 1. Subjects within 5 half-lives after any antibody-based immunotherapy, or have not recovered from effects of any biologic therapy. 2. Subjects <12 weeks after myeloablative therapy with autologous stem cell transplant. 3. Subjects who have had an allogeneic stem cell treatment less than 4 months from Visit 1 are excluded. Those who have received allogeneic stem cell treatment more than 4 months from Visit 1 must have recovered and have no active graft versus host disease (GVHD) to be eligible. 4. Subjects must not have received radiation for a minimum of 2 weeks prior to study enrollment. Subjects whose only site(s) of disease have been radiated are eligible as long as the subject has MIBG avidity 2 weeks after completion of radiation. A minimum of 12 weeks prior to study enrollment is required following prior large field radiation therapy (ie, craniospinal, whole abdominal, total lung, > 50% marrow space) 5. History of total body irradiation. 6. Subjects do not have adequate renal function defined as GFR ≥ 70 mL/min/1.73 m2 either by creatinine clearance or radioisotope direct measurement or by calculation with the Schwartz formula 7. Subjects who are on hemodialysis. 8. Pregnancy or breastfeeding. 9. Significant active infections including active hepatitis B, or hepatitis C infection, or known infection with human immunodeficiency virus (HIV) (testing for HIV is not required prior to study entry). 10. Clinically important cardiac, pulmonary, and hepatic impairment. 11. Vorinostat treatment exclusion criteria (subjects, who meet any one of these criteria and otherwise meet eligibility criteria, are still eligible for 131I-MIBG monotherapy) 1. Since valproic acid has HDAC inhibitory activity, patients must not have received valproic acid within 30 days of study entry. 2. Since vorinostat may prolong the QT interval, patients must not be receiving other medications known to prolong the QT interval at the time of study entry . Pentamidine must not have been received within 1 week of study enrollment. 3. Patients with a history of deep venous thrombosis that was not associated with the presence of a central venous catheter. 4. Patients who are receiving Coumadin.

Key For Phase 1:
• Participants with a locally advanced or metastatic solid tumor that:
• Has progressed on or is intolerant to standard therapy, or
• For which no standard therapy exists, or in the opinion of the Investigator, are not candidates for or would be unlikely to tolerate or derive significant clinical benefit from standard therapy, or
• Decline standard therapy
• Prior multikinase inhibitors (MKIs) with anti-RET activity are allowed
• A RET gene alteration is not required initially. Once adequate PK exposure is achieved, evidence of RET gene alteration in tumor and/or blood is required as identified through molecular assays, as performed for clinical evaluation
• Measurable or non-measurable disease as determined by RECIST 1.1 or RANO as appropriate to tumor type
• Eastern Cooperative Oncology Group (ECOG) score of 0, 1, or 2 or Lansky Performance Score (LPS) greater than or equal to (≥) 40 percent (%) (age less than [<] 16 years) with no sudden deterioration 2 weeks prior to the first dose of study treatment
• Adequate hematologic, hepatic and renal function
• Life expectancy of at least 3 months For Phase 2: As for phase 1 with the following modifications:
• For Cohort 1: Participants must have received prior standard therapy appropriate for their tumor type and stage of disease, or in the opinion of the Investigator, would be unlikely to tolerate or derive clinical benefit from appropriate standard of care therapy
• Cohorts 1 and 2:
• Enrollment will be restricted to participants with evidence of a RET gene alteration in tumor
• At least one measurable lesion as defined by RECIST 1.1 or RANO, as appropriate to tumor type and not previously irradiated
• Cohorts 3 and 4: Enrollment closed
• Cohort 5:
• Cohorts 1-4 without measurable disease
• MCT not meeting the requirements for Cohorts 3 or 4
• MTC syndrome spectrum cancers (e.g., MTC, pheochromocytoma), cancers with neuroendocrine features/differentiation, or poorly differentiated thyroid cancers with other RET alteration/activation may be allowed with prior Sponsor approval
• cfDNA positive for a RET gene alteration not known to be present in a tumor sample
• Cohort 6: Participants who otherwise are eligible for Cohorts 1, 2 or 5 who discontinued another RET inhibitor may be eligible with prior Sponsor approval
• Cohort 7: Participants with a histologically confirmed stage IB-IIIA NSCLC and a RET fusion; determined to be medically operable and tumor deemed resectable by a thoracic surgical oncologist, without prior systemic treatment for NSCLC Key Exclusion Criteria (Phase 1 and Phase 2):
• Phase 2 Cohorts 1 and 2: an additional known oncogenic driver
• Cohorts 3 and 4: Enrollment closed
• Cohorts 1, 2 and 5: prior treatment with a selective RET inhibitor Notes: Participants otherwise eligible for Cohorts 1, 2, and 5 who discontinued another selective RET inhibitor may be eligible for Phase 2 Cohort 6 with prior Sponsor approval
• Investigational agent or anticancer therapy (including chemotherapy, biologic therapy, immunotherapy, anticancer Chinese medicine or other anticancer herbal remedy) within 5 half-lives or 2 weeks (whichever is shorter) prior to planned start of LOXO-292 (selpercatinib). In addition, no concurrent investigational anti-cancer therapy is permitted Note: Potential exception for this exclusion criterion will require a valid scientific justification and approval from the Sponsor
• Major surgery (excluding placement of vascular access) within 2 weeks prior to planned start of LOXO-292 (selpercatinib)
• Radiotherapy with a limited field of radiation for palliation within 1 week of planned start of LOXO-292 (selpercatinib), with the exception of participants receiving radiation to more than 30% of the bone marrow or with a wide field of radiation, which must be completed at least 4 weeks prior to the first dose of study treatment
• Any unresolved toxicities from prior therapy greater than Common Terminology Criteria for Adverse Events (CTCAE) Grade 1 at the time of starting study treatment with the exception of alopecia and Grade 2, prior platinum-therapy related neuropathy
• Symptomatic primary CNS tumor, metastases, leptomeningeal carcinomatosis, or untreated spinal cord compression. Participants are eligible if neurological symptoms and CNS imaging are stable and steroid dose is stable for 14 days prior to the first dose of LOXO-292 (selpercatinib) and no CNS surgery or radiation has been performed for 28 days, 14 days if stereotactic radiosurgery (SRS)
• Clinically significant active cardiovascular disease or history of myocardial infarction within 6 months prior to planned start of LOXO-292 (selpercatinib) or prolongation of the QT interval corrected (QTcF) greater than (>) 470 milliseconds (msec)
• Participants with implanted pacemakers may enter the study without meeting QTc criteria due to nonevaluable measurement if it is possible to monitor for QT changes.
• Participants with bundle branch block may be considered for study entry if QTc is appropriate by a formula other than Fridericia's and if it is possible to monitor for QT changes.
• Required treatment with certain strong cytochrome P450 3A4 (CYP3A4) inhibitors or inducers and certain prohibited concomitant medications
• Phase 2 Cohort 7 (neoadjuvant treatment): Participant must not have received prior systemic therapy for NSCLC.

• Stratum I
• Patients must be less than 18 years of age at the time of diagnosis.
• Patients must have histological verification of the diagnosis of Langerhans cell histiocytosis according to the criteria described in Section 6.1
• Signed informed consent form
• Stratum II
• Patients of Stratum I who have:
• Progressive disease (AD worse) in non-risk organs after 6 weeks (Initial Course
• AD intermediate or worse in non-risk organs or AD better in risk organs after 12 weeks (Initial Course 2)
• Disease progression (AD worse) in non-risk organs at any time during continuation treatment
• Active disease at the end of Stratum I treatment
• Disease reactivation in non-risk organs at any time after completion of Stratum I treatment
• Stratum III
• Patients from Stratum I who fulfill the following criteria:
• AD worse in risk organs after week 6 (after Initial Course 1), or AD worse or AD intermediate in risk organs after week 12 (after Initial Course 2).
• Presence of unequivocally severe organ dysfunction at the above mentioned evaluation points (hematological dysfunction, liver dysfunction, or both of them) as
• Hb <70 g/L (<7.0 g/dl) and/or transfusion dependency
• PLT <20 x109/L (20,000/μL) and/or transfusion dependency (both criteria have to be fulfilled) AND/OR
• Liver dysfunction (or digestive involvement with protein loss)
• Total protein <55 g/L or substitution dependency
• Albumin <25 g/L or substitution dependency (at least one of the two criteria to be fulfilled)
• Stratum IV
• Patients from Stratum I or Stratum III who fulfill the following criteria:
• AD worse in risk organs after week 6 (after Initial Course 1), or AD worse or AD intermediate in risk organs after week 12 (after Initial Course 2) of Stratum I OR
• AD worse after the 2nd and 3rd 2-CdA/Ara-C course, and those AD worse or AD intermediate after the 4th 2-CdA/Ara-C course of Stratum III AND
• Presence of unequivocally severe organ dysfunction at the above mentioned evaluation points (hematological dysfunction, liver dysfunction, or both of them) as defined in Table XI (see Section 10.3.1).
• Informed consent: All patients or their legal guardians (if the patient is <18 years of age) must sign an Ethics or institutional Review Board approved consent form indicating their awareness of the investigational nature and the risks of this study. When appropriate, younger patients will be included in all discussions in order to obtain assent.
• Adequate organ function: Patients should have adequate hepatic, renal, cardiac and pulmonary function to undergo reduced intensity HCT based upon local institutional guidelines, or at a minimum meet requirements noted in eligibility checklist Appendix A-VIII_1. However, significant hepatic and pulmonary dysfunction, if secondary to underlying LCH disease activity, will not exclude patients from protocol enrollment and should be discussed with the National PI Coordinator and the Coordinating Principal Investigator.
• Stratum V
• All patients with verified diagnosis of LCH and MRI findings consistent with ND-CNSLCH irrespective of previous treatments (also those not registered to other Strata ofLCH-IV).
• Patients with isolated tumorous CNS-LCH (including isolated DI with mass lesion in the hypothalamus-pituitary axis). In patients with already established diagnosis of LCH and radiologic finding of CNS lesions compatible with LCH, a biopsy of the lesion is not obligatory. In all other cases a biopsy of the lesion is needed for inclusion into the study
• Stratum VI -- Patients with newly diagnosed SS-LCH and localization other than "multifocal bone",isolated tumorous CNS lesion, or isolated "CNS-risk" lesion.
• Stratum VII -- All patients registered in LCH IV (regardless of treatment) as long as consent for longterm follow-up has not been withheld.
• Stratum I
• Pregnancy (patients of child-bearing age must be appropriately tested before chemotherapy)
• LCH-related permanent consequences (e.g. vertebra plana, sclerosing cholangitis, lung fibrosis, etc.) in the absence of active disease
• Prior systemic therapy
• Stratum II
• Patients with progressive disease in risk organs
• Permanent consequences (e.g. sclerosing cholangitis, lung fibrosis, etc.) without evidence of active LCH in the same organ or in any other locations
• No written consent of the patient or his/her parents or legal guardian
• Stratum III
• The presence of any of the following criteria will exclude the patient from the study:
• Isolated sclerosing cholangitis without evidence of active hepatic LCH as the only evidence of risk organ involvement.
• Inadequate renal function as defined by serum creatinine > 3x normal for age
• Stratum IV
• Pulmonary failure (requiring mechanical ventilation) not due to active LCH.
• Isolated liver sclerosis or pulmonary fibrosis, without active LCH.
• Uncontrolled active life-threatening infection.
• Decreased renal function with a GFR of less than 50ml/1.73m2/min.
• Pregnancy or active breast feeding
• Failure to provide signed informed consent
• Stratum VI
• Patients with SS-LCH who have an isolated tumorous CNS lesion (they are eligible for Stratum V),
• Patients with isolated "CNS-risk" or multifocal bone lesions (they are eligible for Stratum I, Group 2)

• All B-ALL patients must be enrolled on APEC14B1 and consented to Eligibility Screening (Part A) prior to treatment and enrollment on AALL1731. APEC 14B1 is not a requirement for B-LLy patients. B-LLy patients may directly enroll on AALL1731.
• Age at diagnosis:
• Patients must be >= 365 days and < 10 years of age (B-ALL patients without DS).
• Patients must be >= 365 days and =< 31 years of age (B-ALL patients with DS).
• Patients must be >= 365 days and =< 31 years of age (B-LLy patients with or without DS).
• B-ALL patients without DS must have an initial white blood cell count < 50,000/uL (performed within 7 days prior to enrollment).
• B-ALL patients with DS are eligible regardless of the presenting white blood cell count (WBC) (performed within 7 days prior to enrollment).
• Patient has newly diagnosed B-cell ALL, with or without Down syndrome: > 25% blasts on a bone marrow (BM) aspirate;
• OR if a BM aspirate is not obtained or is not diagnostic of B-ALL, the diagnosis can be established by a pathologic diagnosis of B-ALL on a BM biopsy;
• OR a complete blood count (CBC) documenting the presence of at least 1,000/uL circulating leukemic cells;
• OR patient has newly diagnosed B-cell LLy Murphy stages I or II, with or without Down syndrome.
• Note: For B-LLy patients with tissue available for flow cytometry, the criterion for diagnosis should be analogous to B-ALL. For tissue processed by other means (i.e., paraffin blocks), the methodology and criteria for immunophenotypic analysis to establish the diagnosis of B-LLy defined by the submitting institution will be accepted (diagnostic biopsy for B-LLy must be performed within 14 days prior to enrollment).
• All patients and/or their parents or legal guardians must sign a written informed consent.
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
• Patient must not have secondary ALL that developed after treatment of a prior malignancy with cytotoxic chemotherapy. Note: patients with Down syndrome with a prior history of transient myeloproliferative disease (TMD) are not considered to have had a prior malignancy. They would therefore be eligible whether or not the TMD was treated with cytarabine.
• With the exception of steroid pretreatment or the administration of intrathecal cytarabine, patients must not have received any prior cytotoxic chemotherapy for either the current diagnosis of B ALL or B LLy or for any cancer diagnosed prior to initiation of protocol therapy on AALL1731.
• For patients receiving steroid pretreatment, the following additional exclusion criteria apply:
• Non-DS B-ALL patients must not have received steroids for more than 24 hours in the 2 weeks prior to diagnosis without a CBC obtained within 3 days prior to initiation of the steroids.
• DS and non-DS B-LLy patients must not have received > 48 hours of oral or IV steroids within 4 weeks of diagnosis.
• Patients who have received > 72 hours of hydroxyurea within 1 week (7 days) prior to the start of systemic protocol therapy.
• B-ALL patients who do not have sufficient diagnostic bone marrow submitted for APEC14B1 diagnostic testing and who do not have a peripheral blood sample submitted containing > 1,000/uL circulating leukemia cells.
• Patient must not have acute undifferentiated leukemia (AUL).
• Non-DS B-ALL patients with central nervous system [CNS]3 leukemia (CNS status must be known prior to enrollment).
• Note: DS patients with CNS3 disease are eligible but will be assigned to the DS-High B-ALL arm. CNS status must be determined based on a sample obtained prior to administration of any systemic or intrathecal chemotherapy, except for steroid pretreatment.
• Non-DS B-ALL patients with testicular leukemia. (Note: DS patients with testicular disease are eligible but will be assigned to the DS-High B-ALL arm).
• For LLy patients, the following additional exclusion criteria apply:
• T-Lymphoblastic Lymphoma.
• Morphologically unclassifiable lymphoma.
• Absence of both B-cell and T-cell phenotype markers in a case submitted as lymphoblastic lymphoma.
• CNS positive disease or testicular involvement.
• M2 (5%
•25% blasts) or M3 (> 25% blasts) marrow.
• Patients with known Charcot-Marie-Tooth disease.
• Patients with known MYC translocation associated with mature (Burkitt) B-cell ALL, regardless of blast immunophenotype.
• Patients requiring radiation at diagnosis.
• Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential.
• Lactating females who plan to breastfeed their infants.
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation.

1. Signed informed consent and mental capability to understand the informed consent 2. Male or female patients > 18 years of age 3. Histologically or cytologically documented locally advanced or metastatic solid tumor malignancies refractory to or otherwise ineligible for treatment with standard-of-care agents/regimens, including but not limited to:
• Malignant melanoma
• Hormone receptor negative breast cancer
• Gastro-esophageal cancer
• Non-small cell lung cancer
• Head and neck cancer
• Hepatoma
• Renal cell carcinoma 4. Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 1 5. Evaluable or measurable disease as follows:
• A minimum of 3 RECIST-evaluable lesions: one that is suitable for injection and biopsied; one non-injected that will be biopsied for abscopal effect; and one measurable lesion that will be followed for response only.
• Injectable tumors shall be accessed by intralesional (cutaneous) or percutaneous injection only, including those lesions that are visible, palpable, or detectable by standard radiographic or ultrasound methods. Neither surgical procedures nor endoscopically-guided injections including those to endobronchial, endoluminal, or endosinusial spaces shall be allowed. While no anatomic locations are required or disallowed, lesions selected for intratumoral injection must, in the opinion of the investigator:
• Not be immediately adjacent to blood vasculature or other physiologic landmarks in such a way that will accrue undue safety risk to the patient
• Have longest diameter ≥ 10 mm and ≤ 50 mm
• Be fully efficacy evaluable per RECIST v1.1 criteria 6. Life expectancy > 3 months (Phase I) and > 6 months (Phase IIA) 7. ECG without evidence of clinically meaningful conduction abnormalities or active ischemia as determined by the investigator 8. Acceptable organ and marrow function as defined below:
• Absolute neutrophil count > 1,500 cells/μL
• Platelets > 50,000 cells/μL
• Total bilirubin ≤ 1.5 times the upper limit of normal (ULN)
• Aspartate aminotransferase (AST)/alanine transaminase (ALT) ≤ 2.5 times ULN. If liver metastases are present, AST/ALT < 5 times ULN
• Serum creatinine < 1.5 mg/dL and a measured creatinine clearance ≥ 50 mL/min using the Cockcroft-Gault formula
• Prothrombin time (PT)/partial thromboplastin time (PTT) ≤ 1.5 times ULN 9. Women of child-bearing potential (defined as a female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral salpingectomy, or bilateral oophorectomy) or is not postmenopausal (defined as amenorrhea for at least 12 consecutive months with an appropriate clinical profile at the appropriate age, e.g., greater than 45 years) must have a negative serum pregnancy test prior to first dose of study drug 10. Male and female patients with reproductive potential must agree to use two forms of highly effective contraception throughout the study 11. Phase I combination only: Demonstrated RECIST stable disease through ≥ 4 consecutive cycles of an approved PD-1 or PD-L1 targeted ICI with no Grade ≥ 3 CTCAE events considered by the investigator to be drug-related. 1. Anti-cancer therapy within 4 weeks or < 5 half-lives of the first dose of study drug. 2. Failure to recover to Grade 1 or less from clinically significant AEs due to prior anti-cancer therapy. 3. Known untreated brain metastases or treated brain metastases that have not been stable (scan showing no worsening of central nervous system (CNS) lesion[s] and no requirement of corticosteroids) ≥ 4 weeks prior to study enrollment 4. Baseline prolongation of QT/QTc interval (QTc interval > 470) 5. Uncontrolled intercurrent illness (including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations) that in opinion of the investigator would limit compliance with study requirements 6. Women who are pregnant or breastfeeding 7. Phase I combination only: Prior tumor progression through PD-1 or PD-L1 targeted ICI therapy.

Key 1. Age ≥18 years 2. Histologically or cytologically documented Stage I to II NSCLC, with clinical Stage I/II lymph node-negative (T1 to T3N0M0) disease and planned to receive definitive treatment with SBRT. Patients may be medically inoperable or are medically operable and refusing surgery or choosing to have SBRT (Stereotactic Body Radiation Therapy) as definitive therapy 3. Completion of SoC SBRT as definitive treatment prior to randomization 4. World Health Organization (WHO)/Eastern Cooperative Oncology Group (ECOG) PS of 0, 1, or 2 5. Life expectancy of at least 12 weeks 6. Body weight >30 kg 7. Tumor sample required 8. Adequate organ and marrow function required 9. Patients with central or peripheral lesions are eligible 10. Staging studies must be done within 8 weeks before randomization Key 1. Mixed small cell and non-small cell cancer histology 2. History of allogeneic organ transplantation 3. History of another primary malignancy with exceptions 4. History of active primary immunodeficiency 5. Any unresolved toxicity National Cancer Institute (NCI) CTCAE Grade ≥2 from SBRT (Stereotactic Body Radiation Therapy)

Inclusion Criteria for Part 1: Dose Escalation Phase: All patients must meet the following criteria prior to the first dose of study drug: 1. Signed informed consent. Consent must be obtained prior to any study-related procedure. 2. Age ≥ 18 years 3. Histologically confirmed AML or MDS: 1. AML
•relapsed or refractory AML and refuses or is not a candidate for intensive chemotherapy (due to prior failure or not eligible due to expected intolerance) or allogeneic transplant 2. MDS
•relapsed or refractory MDS with > 5% blasts in the marrow or any blasts in the peripheral blood. Patients must have failed prior treatment with an HMA (azacitidine, decitabine, or other HMA agent); failure is defined as intolerance to HMA, lack of response (no CR by at least 6 cycles), or have IWG-defined progressive disease during or after treatment with an HMA. 4. Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 5. Life expectancy of > 2 months in the Investigator's opinion 6. White blood cells (WBC) ≤ 25,000 cells/mm3 (may receive hydroxyurea to bring WBC count down prior to and during the first cycle of treatment with study drug if necessary) 7. Creatinine ≤ 2 × upper limit of normal (ULN) 8. Adequate liver test parameters: total bilirubin < 2.5 × ULN (if disease related or secondary to Gilbert's disease, then total bilirubin < 3.5 mg/dL), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) < 3 × ULN 9. Prothrombin time (PT) / international normalized ratio (INR) and partial thromboplastin time (PTT) < 1.5 × ULN 10. Patients and partners of childbearing potential must be willing to use adequate contraception during the study and for 2 months after last study drug administration. Adequate contraception means less than 1% chance of pregnancy may occur with proper use of the method(s). Exclusion Criteria for Part 1: Dose Escalation Phase: A patient is not eligible to enroll into the study if they have any of the following: 1. Any CNS (cerebral/meningeal) disease related to underlying malignancy 2. History of seizures 3. Acute promyelocytic leukemia 4. Prior anti-CD123 therapy outside of this study 5. Any clinically significant graft-versus-host disease (GVHD) secondary to prior allogenic transplant. Patients must be > 90 days from transplant and have been on no immunosuppressive therapy for > 30 days. Topical corticosteroids for minor skin rash (<5% body surface area) is acceptable. Prior solid organ transplant is acceptable provided the patient is on no immunosuppressive therapy. 6. Any therapy or experimental treatment for MDS or AML within 7 days of the first dose of study drug. Must have recovered to Grade ≤ 1 from any Grade 2 to 4 toxicity from previous treatment. The use of hydroxyurea is acceptable and does not exclude the patient. 7. Active, uncontrolled infection requiring systemic therapy. If the infection is controlled or has resolved, maintenance and/or prophylactic systemic antimicrobials are permitted. 8. Major surgery within 3 weeks prior to first dose of study drug 9. Known to be positive for HIV, hepatitis B virus surface antigen (HBsAg), hepatitis B core antibody (HBcAb), or hepatitis C virus (HCV) 10. Pregnant or breast feeding 11. Any other active systemic malignancies. Exceptions: noninvasive non-melanoma skin cancer, in situ carcinoma, cervical intraepithelial neoplasia, and breast or prostate cancer that is well controlled with anti-hormonal therapy 12. Any current autoimmune disorder requiring immunosuppressive therapy 13. Requires more than a replacement dose of corticosteroids (i.e., > 10 mg/day of prednisone or equivalent) 14. Any uncontrolled medical condition, including but not limited to: 1. Symptomatic congestive heart failure ≥ Class III (New York Heart Association Functional Classification) 2. Uncontrolled hypertension 3. Unstable angina 4. Myocardial infarction within previous 6 months 5. Clinically significant arrhythmias not controlled by medication 6. Uncontrolled metabolic disorders such as hypercalcemia 15. Substance use disorder, psychiatric, cognitive, or any other condition that, in the opinion of the Investigator, would pose a risk to the patient's safety, may compromise the patient's ability to understand and comply with the protocol or provide informed consent, or interfere with the study evaluation 16. Any difficulty complying with protocol requirements that may increase the risk associated with study participation or study drug administration, or may cause a safety concern for the patient Inclusion Criteria for Part 2: Dose Expansion Phase Individuals eligible to participate in this study must meet all of the following: All patients must meet the following criteria prior to the first dose of study drug: 1. Signed informed consent. Consent must be obtained prior to any study-related procedure. 2. Age: >18 years 3. Histologically confirmed AML: Subjects must have de novo (primary) AML (any WHO 2016 classification excluding acute promyelocytic leukemia, AML with myelodysplasia-related features, and Therapy-related secondary AML (except in Cohort 1 or Cohort 2) 4. Cohort 1: Fit primary or secondary AML patients (Age: >18 years) in 1st or 2nd relapse with last CR <1 year or primary refractory disease; Relapsed patients must have relapsed a maximum of two times after standard induction therapy for AML; 5. Cohort 2: Poor prognostic but fit primary or secondary AML patients who are treatment-naïve or in 1st relapse; patients in relapse must have relapsed only once after induction/consolidation therapy for AML, i.e., they must be in 1st relapse 6. Cohort 3: Fit primary AML patients with FLT3-negative intermediate or adverse risk AML (including but not limited to: TP53, RUNX1 and ASXL1 mutations and/or complex cytogenetics) who are treatment-naïve or in 1st relapse with a duration of CR1<1 year 7. Cohort 3: Patients are required to be either not in CR or be in CR is MRD positive (≥01% level) by MFC (Central Laboratory) post induction/consolidation to be eligible for APVO436 treatments. 8. Cohort 4: MRD+ (at ≥0.1% level by multicolor-multiparameter flow cytometry [MFC] in Central Lab) high-risk 1st remission AML patients 9. Cohort 4: Patients must be newly diagnosed AML patients in 1st remission who achieved their first remission after standard chemotherapy with a standard induction regimen with or without post-induction consolidation. 10. Cohort 5: Patients must be AML patients who were in 1st relapse and achieved a 2nd remission after standard chemotherapy with a standard induction regimen with or without post-induction consolidation. 11. Cohorts 1-5: If patient was treated with Cytarabine-containing induction or consolidation regimen, a minimum of 21 days must have passed since the last Cytarabine dose to allow for resolution of the side effects 12. Cohorts 1-3: Patients must have CD123-positive AML as confirmed by flow cytometry in Central Laboratory 13. Cohorts 4 and 5: Patients archived bone marrow or peripheral blood leukemic blast cells must be CD123-positive
•local laboratory results are acceptable. If cells are available, the positivity should be confirmed by Central Laboratory. 14. Patients with precedent MDS are not eligible 15. MRD+ AML patients in Cohort 4 or Cohort 5 must be in CR (CR/CRi) for no more than 6 months and be MRD+, as determined by central hematopathology laboratory 16. MRD+ AML patients in Cohort 4 or Cohort 5 must first have an evaluable screening bone marrow sample confirmed as MRD+ by central hematopathology laboratory 17. Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 18. Life expectancy of > 2 months in the Investigator's opinion 19. Creatinine ≤ 2 × upper limit of normal (ULN) 20. Adequate liver test parameters: total bilirubin < 2.5 × ULN (if disease related or secondary to Gilbert's disease, then total bilirubin < 3.5 mg/dL), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) < 3 × ULN 21. Prothrombin time (PT) / international normalized ratio (INR) and partial thromboplastin time (PTT) < 1.5 × ULN 22. Women of child-bearing potential (i.e., women who are pre-menopausal or not surgically sterile) may participate, provided they meet the following conditions: 1. Must agree to use physician-approved contraceptive methods (e.g., abstinence, intrauterine device, oral contraceptive, double barrier device) throughout the study and for 3 months following the last dose of APVO436; and 2. Must have a negative serum or urine pregnancy test within 7 days prior to beginning treatment on this study. 23. Males with female partners of child-bearing potential must agree to use physician-approved contraceptive methods (e.g., abstinence, condoms, vasectomy) throughout the study and should avoid conceiving children for 3 months following the last dose of APVO436 Exclusion Criteria for Part 2: Dose Expansion Phase Subjects with any of the following will not be eligible for study participation: 1. Acute promyelocytic leukemia (APL) with t(15;17) translocation 2. Absolute peripheral blood myeloblast count greater than 20,000/mm3
•may receive hydroxyurea to reduce and control the myeloblast count down prior to and during the first week of the first cycle of treatment with study drug if necessary if deemed medically necessary and appropriate by the treating physician 3. Patients with active central nervous system (CNS) involvement by AML will be excluded. A lumbar puncture does not need to be performed unless there is clinical suspicion of CNS involvement per investigator judgement. Concurrent therapy for CNS prophylaxis or continuation of therapy for controlled CNS AML is allowed with the approval of the sponsor. 4. History of seizures 5. Prior anti-CD123 therapy with APVO436; prior anti-CD123 therapy with bispecific antibodies, recombinant fusion proteins or antibody-drug conjugates is allowed. 6. Prior allogeneic, unrelated or autologous hematopoietic stem cell transplantation is allowed only in Cohort 5. The transplant must have been performed more than 100 days before the date of dosing on this study without any Grade ≥2 graft-versus-host disease (GVHD) secondary to prior allogenic transplant. Patients must be > 100 days from transplant and have been on no immunosuppressive therapy for > 30 days. Topical corticosteroids for minor skin rash (<5% body surface area) is acceptable. 7. Prior allogeneic, unrelated or autologous hematopoietic stem cell transplantation is not allowed for Cohorts 1 to 4 8. Prior solid organ transplant is acceptable provided the patient is on no immunosuppressive therapy. 9. Any therapy or experimental treatment for AML within 7 days of the first dose of study drug. Must have recovered to Grade ≤ 1 from any Grade 2 to 4 toxicity from previous treatment. The use of hydroxyurea is acceptable and does not exclude the patient. 10. Active, uncontrolled infection requiring systemic therapy. If the infection is controlled or has resolved, maintenance and/or prophylactic systemic antimicrobials are permitted. 11. Major surgery within 3 weeks prior to first dose of study drug 12. Known to be positive for HIV, hepatitis B virus surface antigen (HBsAg), hepatitis B core antibody (HBcAb), or hepatitis C virus (HCV) 13. Uncontrolled hypertension, defined as blood pressure ≥ 140/90 mm Hg despite maximum medical intervention 14. History of congenital long QT syndrome or torsades de pointes 15. Pathologic bradycardia or heart block (excluding first degree heart block) 16. Prolonged baseline QTc, defined as QTcF (Fredericia correction) interval >480 msec (including subjects with a bundle branch block) 17. History of ventricular arrhythmia (excluding PVCs) 18. Major surgery within 28 days prior to informed consent 19. Unstable angina pectoris within 28 days 20. Myocardial infarction and/or new ST elevation or depression or new Q wave on ECG within 6 months 21. Any history of stroke 22. Symptomatic congestive heart failure Class III or greater (New York Heart Association Functional Classification) 23. On full dose anti-coagulation defined as warfarin intended to raise the INR to 2-3 24. Major hemorrhagic event within 28 days requiring transfusion of packed red blood cells 25. Prior history of hypertensive crisis or hypertensive encephalopathy 26. Clinical evidence suggestive of central nervous system (CNS) involvement with leukemia unless a lumbar puncture was performed to confirm the absence of leukemic blasts in the cerebrospinal fluid (CSF) 27. Systemic fungal, bacterial, viral, or other infection not controlled (defined as exhibiting ongoing signs/symptoms related to the infection and without improvement, despite appropriate antibiotics or other treatment) 28. Any open wound 29. Pregnant and nursing subjects are excluded because the effects of APVO436 on a fetus or nursing child are unknown 30. Treatment with any anticancer therapy (standard or investigational) within the previous 14 days prior to the first dose of study drug. In addition, subjects must have fully recovered (NCI CTCAE Grade 1) from the clinically significant toxic effects of that treatment. The use of hydroxyurea in subjects with rapidly proliferating disease is allowed only during Cycle 1. Hydroxyurea is allowed prior to starting the study, and may be used for two weeks after dosing in Cycle 1 (e.g., Days 1-14 dosed with hydroxyurea) 31. Substance use disorder, psychiatric, cognitive, or any other condition that, in the opinion of the Investigator, would pose a risk to the patient's safety, may compromise the patient's ability to understand and comply with the protocol or provide informed consent, or interfere with the study evaluation, study participation, or follow-up 32. Any difficulty complying with protocol requirements that may increase the risk associated with study participation or study drug administration, or may cause a safety concern for the patient 33. Any uncontrolled medical condition, including but not limited to: 1. Uncontrolled hypertension 2. Unstable angina 3. Clinically significant arrhythmias not controlled by medication 4. Uncontrolled metabolic disorders such as hypercalcemia 34. Any other active systemic malignancies. Exceptions: noninvasive non-melanoma skin cancer, in situ carcinoma, cervical intraepithelial neoplasia, and breast or prostate cancer that is well controlled with anti-hormonal therapy 35. Any current autoimmune disorder requiring immunosuppressive therapy with more than a replacement dose of corticosteroids (i.e., > 10 mg/day of prednisone or equivalent)

• PRE-ENROLLMENT ELIGIBILITY SCREENING (STEP 0): Patients must be >= 12 months and =< 21 years of age at the time of enrollment on Step 0
• Note: This age range encompasses pre-screening for all HGG patients. Individual treatment protocols may have different age criteria.
• PRE-ENROLLMENT ELIGIBILITY SCREENING (STEP 0): Patient is suspected of having localized newly-diagnosed HGG, excluding metastatic disease.
• PRE-ENROLLMENT ELIGIBILITY SCREENING (STEP 0): Patient and/or their parents or legal guardians have signed informed consent for eligibility screening on APEC14B1 Part A.
• PRE-ENROLLMENT ELIGIBILITY SCREENING (STEP 0): The specimens obtained at the time of diagnostic biopsy or surgery must be submitted through APEC14B1 as soon as possible (ASAP), preferably within 5 calendar days of the procedure.
• Please note: See the APEC14B1 Manual of Procedures for a full list of detailed instructions for submitting required materials and for shipping details.
• Patients must be >= 3 years and =< 21 years of age at the time of enrollment.
• Patients must have eligibility confirmed by Rapid Central Pathology and Molecular Screening Reviews performed on APEC14B1
• Newly diagnosed high-grade glioma with BRAF^V600-mutation
• Results for H3 K27M by immunohistochemistry (IHC) or sequencing
• Histologically confirmed high-grade glioma (World Health Organization [WHO] grade III or IV) including but not limited to: anaplastic astrocytoma (AA), anaplastic pleomorphic xanthoastrocytoma (aPXA), anaplastic gangliogliomas (aGG), glioblastoma (GB), and high-grade astrocytoma, not otherwise specified (NOS).
• Patients must have had histologic verification of a high-grade glioma diagnosis. CSF cytology by lumbar puncture must be done if clinically indicated and determined to be safe prior to study enrollment. If cytology proves positive, the patient would be considered to have metastatic disease and would, therefore, be ineligible.
• A pre- and post-operative brain MRI with and without contrast and a baseline spine MRI with contrast must be obtained prior to enrollment. The requirement for a post-operative MRI is waived for patients who undergo biopsy only. If the spine MRI is positive, the patient would be considered to have metastatic disease and would be ineligible.
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age.
• Peripheral absolute neutrophil count (ANC) >= 1000/uL (within 7 days prior to enrollment).
• Platelet count >= 100,000/uL (transfusion independent) (within 7 days prior to enrollment).
• Hemoglobin >= 8.0 g/dL (may receive red blood cell [RBC] transfusions) (within 7 days prior to enrollment).
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 (within 7 days prior to enrollment) or
• A serum creatinine based on age/gender as follows (within 7 days prior to enrollment):
• Age 3 to < 6 years (Male 0.8 mg/dL, Female 0.8 mg/dL)
• Age 6 to < 10 years (Male 1 mg/dL, Female 1 mg/dL)
• Age 10 to < 13 years (Male 1.2 mg/dL, Female 1.2 mg/dL)
• Age 13 to < 16 years (Male 1.5 mg/dL, Female 1.4 mg/dL)
• Age >= 16 years (Male 1.7 mg/dL, Female 1.4 mg/dL)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment), and
• Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L (within 7 days prior to enrollment). For the purpose of this study, the ULN for SGPT is 45 U/L.
• Patients with a seizure disorder may be enrolled if their seizures are well controlled while on non-enzyme inducing anticonvulsants permitted on this study.
• Patients must be enrolled and protocol therapy must be projected to begin no later than 31 days after definitive surgery (day 0). If a biopsy only was performed, the biopsy date will be considered the date of definitive surgery. For patients who have a biopsy or incomplete resection at diagnosis followed by additional surgery, the date of the last resection will be considered the date of definitive surgery.
• Patients with intrinsic brainstem or primary spinal cord tumors will be excluded.
• Patients with metastatic disease (defined as neuraxis dissemination either by imaging or by cytology) will be excluded.
• Patients must not have received any prior tumor-directed therapy including chemotherapy, radiation therapy, immunotherapy, or bone marrow transplant for the treatment of HGG other than surgical intervention and/or corticosteroids.
• Previous treatment with dabrafenib or another RAF inhibitor, trametinib or another MEK inhibitor, or an ERK inhibitor.
• Patients with a history of a malignancy with confirmed activating RAS mutation.
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to dabrafenib, trametinib, and their excipients.
• Uncontrolled medical conditions (e.g., diabetes mellitus, hypertension, liver disease, or uncontrolled infection), psychological, familial, sociological, or geographical conditions that do not permit compliance with the protocol; or unwillingness or inability to follow the procedures required in the protocol.
• Presence of active gastrointestinal (GI) disease or other condition (e.g., small bowel or large bowel resection) that will interfere significantly with the absorption of drugs.
• History of hepatitis B virus, or hepatitis C virus infection (patients with laboratory evidence of cleared hepatitis B virus and/or hepatitis C virus may be enrolled).
• History or current diagnosis of cardiac disease indicating significant risk of safety for patients participating in the study such as uncontrolled or significant cardiac disease, including any of the following:
• Recent myocardial infarction (within the last 6 months);
• Uncontrolled congestive heart failure;
• Unstable angina (within last 6 months);
• Clinically significant (symptomatic) or known, uncontrolled cardiac arrhythmias (e.g., sustained ventricular tachycardia, and clinically significant second or third degree atrioventricular [AV] block without a pacemaker) except sinus arrhythmia within the past 24 weeks prior to the first dose of study treatment;
• Coronary angioplasty or stenting (within last 6 months);
• Intra-cardiac defibrillators;
• Abnormal cardiac valve morphology (>= grade 2) documented by echocardiogram.
• Patients with a history or current evidence of retinal vein occlusion (RVO) or central serous retinopathy (CSR), or predisposing factors to RVO or CSR (e.g., uncontrolled glaucoma or ocular hypertension).
• Patients with presence of interstitial lung disease or pneumonitis.
• Female patients who are pregnant are ineligible since there is yet no available information regarding human fetal or teratogenic toxicities.
• Lactating females are not eligible unless they have agreed not to breastfeed their infants for the duration of the study and for 4 months following discontinuation of study therapy.
• Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained.
• Sexually active patients of reproductive potential (male or female) are not eligible unless they have agreed to use an effective contraceptive method for the duration of their study participation and for 4 months following discontinuation of study therapy. Male patients (including those who have had a vasectomy) taking dabrafenib and trametinib combination therapy must use a condom during intercourse while on study and for 16 weeks after stopping treatment, and should not father a child during these periods. Women of childbearing potential should use effective non-hormonal contraception during therapy and for 4 weeks following discontinuation of dabrafenib and at least 4 months following the last dose of trametinib in patients taking combination therapy. Women should be advised that dabrafenib may decrease the efficacy of hormonal contraceptives and an alternate method of contraception, such as barrier methods, should be used.

PHASE 1 Key 1. Histologically or cytologically confirmed diagnosis of locally advanced, or metastatic solid tumor (including primary CNS tumors) (Stage IV, American Joint Committee on Cancer v.7) that harbors an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement by protocol specified tests. 2. ECOG PS 0-1. 3. Age ≥18 (or age ≥ 20 of age as required by local regulation). 4. Capability to swallow capsules intact (without chewing, crushing, or opening). 5. At least 1 measurable target lesion according to RECIST version 1.1. CNS-only measurable disease as defined by RECIST version 1.1 is allowed. 6. Prior cytotoxic chemotherapy is allowed. 7. Prior immunotherapy is allowed. 8. Resolution of all acute toxic effects (excluding alopecia) of any prior anti-cancer therapy to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 4.03 Grade less than or equal to 1. 9. Patients with asymptomatic CNS metastases (treated or untreated) and/or asymptomatic leptomeningeal carcinomatosis are eligible to enroll if they satisfy the protocol specified criteria. 10. Baseline laboratory values fulfilling the following requirements:Absolute neutrophils count (ANC) ≥1500/mm3 (1.5 × 109/L); Platelets (PLTs) ≥100,000/mm3 (100 × 109/L); Hemoglobin ≥ 9.0 g/dL transfusions are allowed; Serum creatinine or creatinine clearance Within normal limits or > 40 mL/min; Total serum bilirubin < 1.5 × ULN; Liver transaminases (ASTs/ALTs) < 2.5 × ULN; < 5 × ULN if liver metastases are present Alkaline phosphatase (ALP); < 2.5 × ULN; < 5 × ULN if liver and/or bone metastasis are present; Serum calcium, magnesium, and potassium Normal or CTCAE grade ≤ 1 with or without supplementation 11. Life expectancy ≥ 3 months. PHASE 2 Key Inclusion Criteria 1. Histologically or cytologically confirmed diagnosis of locally advanced, or metastatic solid tumor (including primary CNS tumors) that harbors a ROS1, or NTRK1-3 gene fusion. 2. Subject must have a documented ROS1 or NTRK1-3 gene fusion determined by tissue-based local testing using either: 1. a next-generation sequencing (NGS) or quantitative polymerase chain reaction (qPCR) test will be accepted to determine molecular eligibility. • Adequate tumor tissue needs to be sent to the Sponsor designated central diagnostic laboratory for retrospective confirmation by a central diagnostic laboratory test selected by the Sponsor. OR 2. a fluorescence in situ hybridization (FISH) test AND prospective confirmation of fusion status by a central diagnostic laboratory test selected by the Sponsor PRIOR to enrollment will be accepted to determine molecular eligibility.
• Adequate tumor tissue must be sent to the Sponsor designated central diagnostic laboratory for prospective confirmation by a central diagnostic laboratory test selected by the Sponsor PRIOR to enrollment. 3. Eastern Cooperative Oncology Group (ECOG) Performance Status 0-1. 4. Age ≥12 (or age ≥ 20 as required by local regulation). 5. Willing and able to provide written institutional review board (IRB)/institutional ethics committee-approved Informed Consent or an Assent signed by a parent or legal guardian for subjects age 12 to 17. 6. At least 1 measurable target lesion according to RECIST (v1.1) prospectively confirmed by Blinded Independent Central Radiology Review (BICR), selected by Sponsor, PRIOR to enrollment. Subjects with CNS-only measurable disease ≥10 mm as defined by RECIST (v1.1) are eligible. 7. Subjects with advanced solid tumors harboring ROS1, NTRK1, NTRK2, or NTRK3 rearrangement will be assigned into 6 distinct expansion (EXP) cohorts provided all inclusion and exclusion criteria are met. i. EXP-1: ROS1 TKI-naïve ROS1+ NSCLC ii. EXP-2: 1 Prior ROS1 TKI and 1 Platinum based chemo ROS1+ NSCLC iii. EXP-3: 2 Prior ROS1 TKIs ROS1+ NSCLC (No Chemo or IO) iv. EXP-4: 1 Prior ROS1 TKI ROS1+ NSCLC (No Chemo or IO) v. EXP-5: TRK TKI-naïve NTRK+ solid tumors vi. EXP-6: TRK TKI-pretreated NTRK+ solid tumors 8. Subjects with asymptomatic CNS metastases (treated or untreated) and/or asymptomatic leptomeningeal carcinomatosis are eligible to enroll if they satisfy the protocol specified criteria. 9. Baseline laboratory values fulfilling the following requirements:Absolute neutrophils count (ANC) ≥1500/mm3 (1.5 × 109/L); Platelets (PLTs) ≥100,000/mm3 (100 × 109/L); Hemoglobin ≥ 9.0 g/dL transfusions are allowed; Serum creatinine or creatinine clearance > 40 mL/min; Total serum bilirubin < 1.5 × ULN; Liver transaminases (ASTs/ALTs) < 2.5 × ULN; < 5 × ULN if liver metastases are present Alkaline phosphatase (ALP); < 2.5 × ULN; < 5 × ULN if liver and/or bone metastasis are present; Serum calcium, magnesium, and potassium Normal or CTCAE grade ≤ 1 with or without supplementation 10. Life expectancy ≥ 3 months. Key Exclusion Criteria PHASE 1 and PHASE 2 1. Concurrent participation in another therapeutic clinical trial. 2. Symptomatic brain metastases or leptomeningeal involvement. 3. History of previous cancer, except for squamous cell or basal-cell carcinoma of the skin, or any in situ carcinoma that has been completely resected, requiring therapy within the previous 2 years. 4. Major surgery within 4 weeks of start of repotrectinib treatment. Radiation therapy (except palliative to relieve bone pain) within 2 weeks of study entry. Palliative radiation (≤10 fractions) must have been completed at least 48 hours prior to study entry 5. Clinically significant cardiovascular disease (either active or within 6 months prior to enrollment): myocardial infarction, unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure (New York Heart Association Classification Class ≥ II), cerebrovascular accident or transient ischemic attack, symptomatic bradycardia, requirement for anti-arrhythmic medication. Ongoing cardiac dysrhythmias of NCI CTCAE grade ≥2 6. Any of the following cardiac criteria: Mean resting corrected QT interval (ECG interval measured from the onset of the QRS complex to the end of the T wave) for heart rate (QTcF) > 470 msec obtained from 3 ECGs, using the screening clinic ECG machine-derived QTc value Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g., complete left bundle branch block, third degree heart block, second degree heart block, PR interval > 250 msec) Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, hypokalemia, congenital long QT syndrome, family history of long QT syndrome, or any concomitant medication known to prolong the QT interval. 7. Known active infections (bacterial, fungal, viral including HIV positivity). 8. Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would impact drug absorption. 9. Peripheral neuropathy of CTCAE ≥grade 2. 10. History of extensive, disseminated, bilateral, or presence of CTCAE grade 3 or 4 interstitial fibrosis or interstitial lung disease including a history of pneumonitis, hypersensitivity pneumonitis, interstitial pneumonia, interstitial lung disease, obliterative bronchiolitis, and pulmonary fibrosis. Subjects with history of prior radiation pneumonitis are not excluded.

• Patients with suspected prostate cancer (e.g., abnormal digital rectal exam, elevated and/or rising PSA) as determined by referring physician
• Patients must have had a diagnostic, standard of care mpMRI of the prostate with at least one lesion with a PI-RADS v2.1 score ≥ 4
• In men with PI-RADS v2.1 score 4, PSA should be ≥ 10 ng/mL. In men with at least one PI-RADS v2.1 score 5 lesion, there is no restriction on PSA level.
• Patients must be scheduled for biopsy or radical prostatectomy
• Patients should not have had any type of curative or palliative therapy for prostate cancer before enrolling in the study
• Patients must be medically stable as judged by the patient's physician
• Patients must be able to lie still for a total of 60 minutes for the PET/CT scans
• Ability to understand and the willingness to sign a written informed consent
• Patients who have had a prior prostatectomy or radiotherapy for prostate cancer cannot participate in the study
• Patients who have had a prior biopsy for prostate cancer cannot participate in the study
• Patients who have been treated for cancers other than skin cancers
• Subjects may not be receiving any other investigational agents for the treatment of the cancer under study
• Patients may not weigh more than the maximum weight limit for the PET/CT scanner table (>200 kilograms or 440 pounds)
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to 68Ga PSMA-11 or other agents used in the study such as gadolinium-based intravenous contrast agent used during the mpMRI
• Prior TURP/BPH procedures, including steam/laser therapies

• All patients must be enrolled on APEC14B1 and consented to Eligibility Screening (Part A) prior to enrollment and treatment on AAML1831. Submission of diagnostic specimens must be done according to the Manual of Procedures
• Patients must be less than 22 years of age at the time of study enrollment
• Patient must be newly diagnosed with de novo AML according to the 2016 World Health Organization (WHO) classification with or without extramedullary disease
• Patient must have 1 of the following:
• >= 20% bone marrow blasts (obtained within 14 days prior to enrollment)
• In cases where extensive fibrosis may result in a dry tap, blast count can be obtained from touch imprints or estimated from an adequate bone marrow core biopsy
• < 20% bone marrow blasts with one or more of the genetic abnormalities associated with childhood/young adult AML as provided in the protocol (sample obtained within 14 days prior to enrollment)
• A complete blood count (CBC) documenting the presence of at least 1,000/uL (i.e., a white blood cell [WBC] count >= 10,000/uL with >= 10% blasts or a WBC count of >= 5,000/uL with >= 20% blasts) circulating leukemic cells (blasts) if a bone marrow aspirate or biopsy cannot be performed (performed within 7 days prior to enrollment)
• ARM C: Patient must be >= 2 years of age at the time of Late Callback
• ARM C: Patient must have FLT3/ITD allelic ratio > 0.1 as reported by Molecular Oncology
• ARM C: Patient does not have any congenital long QT syndrome or congenital heart block
• ARM C: Females of reproductive potential must agree to use effective contraception during treatment and for at least 6 months after the last dose of gilteritinib
• ARM C: Lactating women must agree not to breastfeed during treatment with gilteritinib and for 2 months after the last dose of gilteritinib
• ARM C: Males of reproductive potential must agree to use effective contraception during treatment and for at least 4 months after the last dose of gilteritinib
• ARM D: Patient must be >= 2 years of age at the time of Late Callback
• ARM D: Patient must have one of the clinically relevant non-ITD FLT3 activating mutations as reported by Foundation Medicine
• ARM D: Females of reproductive potential must agree to use effective contraception during treatment and for at least 6 months after the last dose of gilteritinib
• ARM D: Lactating women must agree not to breastfeed during treatment with gilteritinib and for 2 months after the last dose of gilteritinib
• ARM D: Males of reproductive potential must agree to use effective contraception during treatment and for at least 4 months after the last dose of gilteritinib
• NEUROPSYCHOLOGICAL TESTING: Patient must be enrolled on Arm A or Arm B. Patients who transfer to Arm C or Arm D are not eligible
• NEUROPSYCHOLOGICAL TESTING: Patient must be 5 years or older at the time of enrollment
• NEUROPSYCHOLOGICAL TESTING: English-, French- or Spanish-speaking
• NEUROPSYCHOLOGICAL TESTING: No known history of neurodevelopmental disorder prior to diagnosis of AML (e.g., Down syndrome, fragile X, William syndrome, mental retardation)
• NEUROPSYCHOLOGICAL TESTING: No significant visual or motor impairment that would prevent computer use or recognition of visual test stimuli
• All patients and/or their parents or legal guardians must sign a written informed consent
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
• Fanconi anemia
• Shwachman Diamond syndrome
• Patients with constitutional trisomy 21 or with constitutional mosaicism of trisomy 21
• Telomere disorders
• Germline predispositions known, or suspected by the treating physician to increase risk of toxicity with AML therapy
• Any concurrent malignancy
• Juvenile myelomonocytic leukemia (JMML)
• Philadelphia chromosome positive AML
• Mixed phenotype acute leukemia
• Acute promyelocytic leukemia
• Acute myeloid leukemia arising from myelodysplasia
• Therapy-related myeloid neoplasms
• Patients with persistent cardiac dysfunction prior to enrollment, defined as ejection fraction (EF) < 50% (preferred method Biplane Simpson's EF) or if EF unavailable, shortening fraction (SF) < 24%. *Note: if clinically safe and feasible, repeat echocardiogram is strongly advised in order to confirm cardiac dysfunction following clinical stabilization, particularly if occurring in the setting of sepsis or other transient physiologic stressor. If the repeat echocardiogram demonstrates an EF >= 50%, the patient is eligible to enroll and may receive an anthracycline-containing Induction regimen
• Administration of prior anti-cancer therapy except as outlined below:
• Hydroxyurea
• All-trans retinoic acid (ATRA)
• Corticosteroids (any route)
• Intrathecal therapy given at diagnosis
• In particular, strong inducers of CYP3A4 and/or P-glycoprotein (P-gp) should be avoided from the time of enrollment until it is determined whether the patient will receive gilteritinib. Patients receiving gilteritinib will be required to avoid strong CYP3A4 inducers and/or strong P-gp inducers for the duration of the study treatment
• Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential
• Lactating females who plan to breastfeed their infants
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation
• ARM D: Patient does not have any congenital long QT syndrome or congenital heart block

1. Participant is able and willing to provide informed consent (≥18 years), or informed consent is obtained by the parent or legal guardian for minor participants, with the minor providing age appropriate assent, according to local law and regulations; 2. Life expectancy ≥ 12 weeks; 3. Known high-risk neuroblastoma OR previously intermediate-risk neuroblastoma that has relapsed or progressed to high-risk, with failure to achieve complete response with standard therapy (defined as at least 4 cycles of aggressive multi-drug induction chemotherapy with or without radiation and surgery, or according to a standard high-risk treatment/neuroblastoma protocol), OR who are medically ineligible to receive standard treatment OR who are intolerant to standard treatment; 4. Adequate recovery from acute toxic effects of any prior therapy, as deemed by the Investigator or treating Sub-Investigator; 5. Adequate liver function as defined by the following laboratory values obtained within 28 days prior to administration of 64Cu-SARTATE: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3.0 x upper limit of normal (ULN); 6. Adequate renal function; 7. Adequate laboratory parameters: Absolute neutrophil count > 1.0 x 10 9/L; Platelet count > 50 x 10 9/L; Total bilirubin <1.5 x ULN; 8. Karnofsky or Lansky performance status ≥50; 9. All participants must have a hematopoietic stem cell product available (minimum CD34+ cell dose is ≥2 x 10 6 cells/kg); 10. Sexually active participants of reproductive potential must practice an effective method of birth control while participating on this study, to avoid possible damage to the fetus. Abstinence is considered acceptable; 11. 64Cu-SARTATE uptake on the 4 hour scan (SUVmax) of any lesion equal to or higher than that of the liver in order to move on to the therapy phase of the study. 1. Participants with disease of any major organ system that would compromise their ability to tolerate therapy, as deemed by the Investigator or treating Sub-Investigator; 2. Any other active malignancy, or a history of prior malignancy within the past 3 years; 3. History of cardiac failure as evidenced by: dyspnea at rest, exercise intolerance, oxygen requirement, clinically significant cardiac dysfunction; 4. Planned administration of chemotherapy, anti-cancer cytokine therapy, immunotherapy or radiotherapy within 2 weeks prior to the administration of 64Cu-SARTATE; 5. Administration of therapeutic dose of 131I-MIBG within 8 weeks prior to the administration of 64Cu-SARTATE; 6. External beam radiation therapy (EBRT) to both kidneys or a single functioning kidney within 12 months prior to the administration of 64Cu-SARTATE; 7. Administration of any investigational agents within 21 days prior to administration of 64Cu-SARTATE; 8. Treatment with long acting somatostatin analogues (administered within 28 days prior to the administration of 64Cu-SARTATE), or short acting somatostatin analogues (administered within 24 hours prior to the administration of 64Cu-SARTATE); 9. Known sensitivity or allergy to somatostatin analogues; 10. Previous peptide receptor radionuclide therapy (PRRT); 11. Female participants who are pregnant or lactating; 12. Participants who are on hemodialysis; 13. QTc interval ≥ 0.45 seconds as measured by Screening ECG; 14. Participants with uncontrolled infection(s); 15. Any medical condition which the Investigator feels may interfere with the procedures or evaluations of the study; 16. Participants 12 months and younger will be excluded from cohorts where the planned single or cumulative administered activity is modelled to deliver a radiation dose to the marrow that exceeds 2 Gy.

Stage 1
• Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 within 7 days prior to randomization
• Locally advanced or metastatic and/or unresectable hepatocellular carcinoma (HCC) with diagnosis confirmed by histology/cytology or clinically by American Association for the Study of
• Liver Diseases criteria in cirrhotic patients
• Child-Pugh class A within 7 days prior to randomization
• Disease that is not amenable to curative surgical and/or locoregional therapies
• No prior systemic treatment for HCC
• Life expectancy >= 3 months
• Availability of a representative tumor specimen that is suitable for determination of PD-L1 and/or additional biomarker status via central testing Stage 1 and Stage 2
• Measurable disease according to Response Evaluation Criteria in Solid Tumors v1.1
• Adequate hematologic and end-organ function within 7 days prior to initiation of study treatment
• Documented virology status of hepatitis, as confirmed by screening tests for hepatitis B virus
•(HBV) and hepatitis C virus (HCV)
• Negative HIV test at screening
• For women of childbearing potential: agreement to remain abstinent or use contraception and for men: agreement to remain abstinent or use contraception, and agreement to refrain from donating sperm Stage 2
• ECOG Performance Status of 0, 1, or 2
• Ability to initiate Stage 2 treatment within 3 months after experiencing unacceptable toxicity not related to atezolizumab or RO7247669 or loss of clinical benefit as determined by the investigator while receiving Stage 1 treatment
• Availability of a tumor specimen from a biopsy performed upon discontinuation of Stage 1 (if deemed clinically feasible) Stage 1
• Prior treatment with CD137 agonists or immune checkpoint inhibitors
• Treatment with investigational therapy within 28 days prior to initiation of study
• Treatment with locoregional therapy to liver within 28 days prior to initiation of study, or non-recovery from side effects of any such procedure
• Untreated or incompletely treated esophageal and/or gastric varices with bleeding or at high risk for bleeding
• Prior bleeding event due to esophageal and/or gastric varices within 6 months prior to initiation of study
• AEs from prior anti-cancer therapy that have not resolved to Grade <= 1 or better, with the exception of alopecia of any grade
• Inadequately controlled hypertension
• History of hypertensive crisis or hypertensive encephalopathy
• Significant vascular disease
• History of hemoptysis within 1 month prior to initiation of study
• Evidence of bleeding diathesis or significant coagulopathy
• Current or recent use of asprin (>325 mg/day) or treatment with clopidogrel, dipyramidole, ticlopidine, or cilostazol
• Current or recent use of full-dose oral or parenteral anticoagulants or thrombolytic agents for therapeutic (as opposed to prophylactic) purpose
• Core biopsy or other minor surgical procedure within 3 days prior to initiation of study
• History of abdominal or tracheoesophageal fistula, GI perforation, or intra-abdominal abscess, intestinal obstruction and/or clinical signs/symptoms of GI obstruction
• Evidence of abdominal free air not explained by paracentesis or recent surgery
• Serious, non-healing/dehiscing wound, active ulcer, or untreated bone fracture
• Grade >=2 proteinuria
• Metastatic disease involving major airways/blood vessels, or centrally located mediastinal tumor masses of large volume
• History of intra-abdominal inflammatory process
• Radiotherapy within 28 days or abdominal/pelvic radiotherapy within 60 days prior to initiation of study with the exception of palliative radiotherapy to bone lesions within 7 days prior to initiation of study
• Major surgery, open biopsy, or significant traumatic injury within 28 days prior to initiation of study; or abdominal surgery, abdominal interventions or significant abdominal traumatic injury within 60 days prior to initiation of study; or anticipation of need for major surgery during study or non-recovery from side effects of any such procedure
• Chronic daily treatment with NSAID
• Eligible only for control arm Stage 1 and 2
• Fibrolamellar or sarcomatoid HCC, or mixed cholangiocarcinoma and HCC
• History of hepatic encephalopathy
• Moderate or severe ascites
• HBV and HCV coinfection
• Symptomatic, untreated, or actively progressing CNS metastases
• History of leptomeningeal disease
• Uncontrolled tumor-related pain
• Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures
• Uncontrolled or symptomatic hypercalcemia
• Active or history of autoimmune disease or immune deficiency
• History of IPF, organizing pneumonia, drug-induced or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest CT scan
• Active TB
• Significant CV disease within 3 months prior to initiation of study, unstable arrhythmia, or unstable angina
• Major surgery, other than for diagnosis, within 4 weeks prior to initiation of study, or anticipated major surgery during study
• History of malignancy other than HCC within 5 years prior to screening
• Severe infection within 4 weeks prior to initiation of study
• Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation of study
• Prior allogeneic stem cell or solid organ transplantation
• Treatment with a live, attenuated vaccine within 4 weeks prior to initiation of study, or anticipation of need for such a vaccine during atezolizumab treatment or within 5 months after the final dose of atezolizumab
• History of severe allergic anaphylactic reactions to chimeric or humanized antibodies or fusion proteins
• Known allergy or hypersensitivity to any of the study drugs or any of their excipients Treatment with systemic immunostimulatory, immunosuppressive agents within 4 weeks or 5 drug-elimination half-lives (whichever is longer) prior to initiation of study
• Treatment with systemic immunosuppressive medication within 2 weeks prior to initiation of study
• Patients entering Stage 2: immunotherapy-related adverse events that have not resolved to Grade 1 or better or to baseline at time of consent

• Liveborn infants 22 0/7
•28 6/7 weeks gestation or 401
•1000 grams (inclusive) birth weight
• Clinical decision to give surfactant
• Less than or equal to 48 hours postnatal age
• Terminal illness (heart rate < 100 beats per minute, unresponsiveness to resuscitation) or unlikely to survive as judged by the clinician
• Decision to redirect or limit support
• Use of surfactant before enrollment (first dose of surfactant must be study drug)
• Infant received systemic steroids prior to enrollment
• Use of indomethacin, either received by the mother within 24 hours prior to delivery,received by the infant prior to enrollment, or intent to administer to the infant for IVH prophylaxis or PDA management from enrollment up to 7 days of final dose of study drug
• Serious chromosomal abnormalities or major malformations
• Known congenital infections including, but not limited to, confirmed sepsis, congenital CMV, etc.
• Infants with a permanent neuromuscular condition that affects respiration
• Enrollment in a conflicting clinical trial

• Written informed consent in accordance with federal, local, and institutional guidelines. The patient must provide informed consent prior to the first screening procedure.
• Age ≥ 18 years
• Life expectancy > 12 weeks.
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• Histologically confirmed diagnosis of one of the following, in accordance with WHO diagnostic criteria:
• Escalation:
• Diffuse Large B-cell Lymphoma (DLBCL, including primary mediastinal large B cell lymphoma, T cell rich B cell lymphoma, and high-grade B cell lymphoma NOS). Patients with Burkitt's, lymphoblastic lymphoma, follicular lymphoma, and mantle cell lymphoma are not included. OR
• Acute Myeloid Leukemia (AML)
• Expansion:
• Diffuse Large B-cell Lymphoma and acute myeloid leukemia as above.
• VEN Refractory expansion cohort (Diffuse Large B-cell Lymphoma and acute myeloid leukemia only): Patients must have previously received and failed venetoclax therapy (either monotherapy or combination) during their treatment course (i.e., patients may receive non-VEN therapy immediately prior to enrollment on this study). Treatment failure is defined as evidence of disease progression after ≥ 1 cycle (four weeks) of full-intensity venetoclax-based therapy (i.e., 28 days exclusive of ramp-up. Patients that require dose reductions due to intolerance may be considered for this cohort after discussion with the sponsor.)
• Relapsed or refractory following ≥ 1 line(s) of prior therapy
• Patients that relapse ≥ 3 months after allogeneic hematopoietic cell transplantation (HCT) are eligible.
• Female patients of childbearing potential must agree to use two methods of contraception (including one highly effective and one effective method of contraception) and have a negative serum pregnancy test at screening. Male patients must use an effective barrier method of contraception if sexually active with a female of childbearing potential. For both male and female patients, effective methods of contraception must be used throughout the study and for 3 months following the last dose of study treatment.
• For leukemia and DLBCL with known or suspected marrow involvement, patients must have at least 10-15 mL of bone marrow aspirate material obtained within 14 days of beginning treatment on this study. Patients with DLBCL must have 3-5 unstained slides, or tissue block, available for evaluation within 14 days of study enrollment in the expansion cohorts. DLBCL patients enrolled during the escalation phase must have blocks available for submission within 28 days of beginning treatment.
• CBC testing must confirm adequate marrow reserve, as demonstrated by:
• DLBCL: Hgb ≥ 10g/dL, platelets ≥ 75,000 cells/mm3 , ANC ≥ 1,000 cells/mm3
• Adequate organ function, as demonstrated by:
• Total bilirubin < 1.5 x upper limit of normal (ULN) (except patients with Gilbert's syndrome (hereditary indirect hyperbilirubinemia), who must have a total bilirubin of < 3 x ULN, and
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) normal to < 2 x ULN
• Calculated creatinine clearance > 50 mL/min (per the Cockcroft-Gault formula).
• Patients with laboratory evidence of liver or kidney dysfunction secondary to underlying disease, that is expected to reverse with treatment, may be enrolled after discussion with the sponsor/investigator.
• Patients who are pregnant or lactating
• Patients who received any systemic anticancer therapy including investigational agents or radiation ≤3 weeks (or ≤5 half-lives of the drug [whichever is shorter]) prior to C1D1. Hydroxyurea is permitted for up to 14 days in AML patients
• Inadequate recovery from toxicity attributed to prior anti-cancer therapy. With the exception of alopecia or fatigue, patients must have recovered to baseline or ≤ Grade 1 (NCI-CTCAE v4.03) residual toxicity prior to first dose of protocol-indicated treatment.
• Participation in another clinical trial with any investigational drug within 14 days prior to study enrollment.
• Patients included in the VEN refractory cohort that have discontinued venetoclax therapy (either monotherapy or combination) due to toxicity or hypersensitivity, including prior history of grade 3/4 TLS during prior VEN exposure
• In dose expansion cohorts, except venetoclax refractory cohort, no prior treatment with SINE compounds, another XPO1 inhibitor, or BCL-2 inhibitors.
• Active GVHD requiring calcineurin inhibitors or steroid dosing ≥ 10mg/day prednisone (or equivalent) or < 3 months from allogenic hematopoietic cell transplant (HCT).
• Uncontrolled (i.e., clinically unstable) infection requiring parenteral antibiotics, antivirals, or antifungals within one week prior to first dose; however, prophylactic use of these agents is acceptable even if parenteral.
• Major surgery within 2 weeks of first dose of study drug.
• Any life-threatening illness, medical condition or organ system dysfunction which, in the investigator's opinion, could compromise the patient's safety.
• Unstable cardiovascular function:
• Symptomatic ischemia, or
• Uncontrolled clinically significant conduction abnormalities (i.e., ventricular tachycardia on anti-arrhythmia therapy are excluded; 1st degree AV block or asymptomatic LAFB/RBBB will not be excluded), or
• Congestive heart failure (CHF) of NYHA Class ≥3, or
• Myocardial infarction (MI) within 3 months.
• Known active Hepatitis B or Hepatitis C infection (Hepatitis testing is not required as part of this study).
• Known human immunodeficiency virus (HIV) infection (HIV testing is not required as part of this study).
• Subject has received the following ≤ 7 days prior to Cycle 1, Day 1: Strong and moderate CYP3A inducers such as rifampin, carbamazepine, phenytoin, and St. John's wort.
• Subject has received the following ≤ 5 days prior to Cycle 1, Day 1: Strong and moderate CYP3A inhibitors such as fluconazole, ketoconazole, and clarithromycin.
• Subject has consumed grapefruit, grapefruit products, Seville oranges (including marmalade containing Seville oranges) or Starfruit ≤ 3 days prior to Cycle 1, Day 1.
• Inability to swallow oral medication; or the presence of a poorly controlled gastrointestinal disease, disorder, syndrome, or dysfunction that could significantly affect the absorption of oral study drug
•e.g. Crohn's disease, ulcerative colitis, chronic diarrhea (defined as > 4 loose stools per day), malabsorption syndrome, or bowel obstruction.
• Inability or unwillingness to take required and recommended medications intended to prevent and treat potential adverse events of tumor lysis syndrome (TLS), nausea and vomiting, loss of appetite, and fatigue.
• Patients unwilling to comply with the protocol

• Pathologically (histologically) proven diagnosis of non-muscle invasive (Ta, Tis, or T1) bladder cancer within 90 days prior to enrollment
• Able to give informed consent
• 18 years or older
• Patients must not be taking oral glucocorticoids at the time of registration
• Not have active, uncontrolled infections
• No other prior non-bladder malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated Stage I or II cancer from which the patient is currently in complete remission, or any other cancer from which the patient has been disease free for five years.
• Patients with localized prostate cancer who are being followed by an active survelillance program are also eligible.
• Patients must not be pregnant or nursing, as the use of Intravesical BCG is not recommended during pregnancy. Women/ men of reproductive potential must have agreed to use an effective contraceptive method. A woman is considered to be of "reproductive potential" if she has had menses at any time in the preceding 12 consecutive months. Examples of effective contraception include hormonal contraception, double barrier method (condom with spermicidal cream, diaphragms with spermicidal cream, or condoms with diaphragms), Intrauterine device, and/or partner vasectomy. In addition to routine contraceptive methods, "effective contraception" also includes heterosexual celibacy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) defined as a hysterectomy, bilateral oophorectomy, or bilateral tubal ligation. However, if at any point a previously celibate patient chooses to become heterosexually active during the time period for use of contraceptive measures outlined in the protocol, he/she is responsible for beginning contraceptive measures. Both male and female patients will be required to disclose contraception method during screening and agree to continue to use that contraception method through the end of their participation in the study.
• Patients must have had all grossly visible papillary tumors removed within 90 days prior to registration or cystoscopy confirming no grossly visible papillary tumors within 90 days prior to registration.
• Patients with T1 disease must have cross-sectional imaging of abdomen/pelvis demonstrating no evidence of nodal involvement or metastatic disease (MRI or CT scan) within 90 days prior to registration. Patients with T1 disease must have re-resection confirming ≤ T1 disease within 90 days prior to registration.
• Patients must no have received prior intravesical BCG
• Have muscle-invasive or higher (≥T2) bladder cancer
• Unable to give informed consent
• Age 17 or younger
• Taking oral glucocorticoids at the time of registration
• Another cancer requiring active treatment (except basal cell carcinoma or squamous cell carcinoma of the skin)
• Patients at risk of pregnancy that are unwilling or unable to take effective contraception during the study period, or patients that are nursing during the study period. Women/ Men of reproductive potential must have agreed to use an effective contraceptive method or will be considered ineligible for study participation.
• Evidence of nodal involvement or metastatic disease (MRI or CT scan) within 90 days prior to registration
• History of prior intravesical BCG
• History of prior Rapamycin treatment

• STEP 1: Age >= 18 years
• STEP 1: Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• STEP 1: Patients must have oropharynx cancer (American Joint Committee on Cancer [AJCC] 8) that is p16-positive by immunohistochemistry OR p16 equivocal by IHC and HPV positive by in situ hybridization with the following criteria: >= 10 pack-years, stage T1-2N2-N3 or T3-4N0-3 (less than 10 pack-years is considered a non-smoker) OR < 10 pack-years, stage T4N0-N3 or T1-3N2-3
• STEP 1: Patients must not have known hypersensitivity to nivolumab or compounds of similar chemical or biologic composition.
• STEP 1: Patients with a history of allergic reactions attributed to platinum-based chemotherapy agents are excluded.
• STEP 1: Patients must not have had prior systemic therapy, radiation treatment or surgery for p16 positive oropharyngeal squamous cell carcinoma (OPSCC).
• NOTE: Patients who had resection of T1 or T2 carcinoma with no radiation or chemotherapy are eligible if surgery was done 5 years prior to enrollment
• STEP 1: Patients must not have received previous irradiation for head and neck tumor, skull base, or brain tumors.
• STEP 1: Patients must not receive investigational agents within 4 weeks of enrollment or at any time while on study.
• STEP 1: Patients with evidence of distant metastases or leptomeningeal disease (LMD) are excluded.
• STEP 1: Patients with uncontrolled inter-current illnesses which in the opinion of the investigator will interfere with the ability to undergo therapy including chemotherapy are excluded.
• STEP 1: Patients with a history of prior or second malignancy are excluded, with the exception of curatively treated non-melanoma skin cancer, or curatively treated cervical cancer; additionally, patients curatively treated for malignancy who remain disease-free at > 2 years of follow up, are not excluded.
• STEP 1: Absolute neutrophil count (ANC) >= 1500/mm^3 (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Hemoglobin (Hgb) >= 8.0 g/dL (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Platelet count >= 100,000/mm^3 (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Creatinine clearance of >= 60 ml/min (must be obtained =< 2 weeks prior to randomization). Creatinine clearance may be measured or calculated. If calculating, creatinine clearance, use the Cockcroft-Gault formula.
• STEP 1: Total bilirubin within 1.5 times the normal limits (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) or serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) within 2.0 times the normal limits (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Alkaline phosphatase within 2.0 times the normal limits (must be obtained =< 2 weeks prior to randomization).
• STEP 1: Patients must not be pregnant or breast-feeding as chemotherapy, radiation, and immunotherapy may have possible teratogenicity effects; in addition, complications from pregnancy may interfere with the ability of patients to have an uninterrupted therapy. All patients of childbearing potential must have a blood test or urine study within 2 weeks prior to randomization to rule out pregnancy. A patient of childbearing potential is any female, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months).
• STEP 1: Patients of childbearing potential must use an accepted and effective method of contraception or abstain from sexual intercourse for at least one week prior to the start of treatment, and continue for 5 months after the last dose of protocol treatment. Patients must also not donate ova during this same time period.
• STEP 1: Patients must have measurable disease
• STEP 1: Patients must have tumor measurements with CT of neck and CT of chest (or CT of neck and FDG PET/CT if standard of care) within 4 weeks prior to Step 1 randomization.
• STEP 1: Patients with active autoimmune disease or history of autoimmune disease that might recur, which may affect vital organ function or require immune suppressive treatment including systemic corticosteroids, should be excluded. These include but are not limited to patients with a history of immune related neurologic disease, multiple sclerosis, autoimmune (demyelinating) neuropathy, Guillain-Barre syndrome, myasthenia gravis; systemic autoimmune disease such as systemic lupus erythematosus (SLE), connective tissue disease, scleroderma, inflammatory bowel disease (IBD), Crohn's, ulcerative colitis, hepatitis; and patients with a history of toxic epidermal necrolysis (TEN), Stevens-Johnson syndrome, or phospholipid syndrome should be excluded because of the risk of recurrence or exacerbation of disease. Patients with vitiligo, endocrine deficiencies including thyroiditis managed with replacement hormones including physiologic corticosteroids are eligible. Patients with rheumatoid arthritis and other arthropathies, Sjogren's syndrome and psoriasis controlled with topical medication and patients with positive serology, such as antinuclear antibodies (ANA), anti-thyroid antibodies should be evaluated for the presence of target organ involvement and potential need for systemic treatment but should otherwise be eligible.
• STEP 1: Patients are permitted to enroll if they have vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger (precipitating event).
• STEP 1: Patients must not have a condition requiring systemic treatment with either corticosteroids (> 10 mg/day prednisone equivalents) or other immunosuppressive medications which are expected to continue during nivolumab administration. Inhaled or topical steroids and adrenal replacement doses > 10 mg/day prednisone equivalents are permitted in the absence of active autoimmune disease
• STEP 1: Patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
• STEP 1: Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
• STEP 1: Patients with a known history of testing positive for human immunodeficiency virus (HIV) or known acquired immunodeficiency syndrome (AIDS) must have no detectable viral load on a stable antiviral regimen
• STEP 1: Patients must not be receiving any other investigational agents.
• STEP 1: Patient must not have a baseline clinically significant hearing loss, which in the opinion of the investigator would preclude the use of cisplatin
• STEP 2: Patients must have progression per RECIST criteria AND tissue-proven progression on Arm B treatment within 12 months after completion of radiation therapy.
• STEP 2: ECOG performance status of 0 or 1.
• STEP 2: Patients must not have known hypersensitivity to nivolumab or compounds of similar chemical or biologic composition.
• STEP 2: Patients must not have received non-protocol anti-cancer therapy after completion of radiation and chemotherapy.
• STEP 2: ANC >= 1500/mm^3 (must be obtained =< 2 weeks prior to registration).
• STEP 2: Hgb >= 8.0 g/dL (must be obtained =< 2 weeks prior to registration).
• STEP 2: Platelet count >= 100,000/mm^3 (must be obtained =< 2 weeks prior to registration).
• STEP 2: Creatinine within institutional limits of normal (must be obtained =< 2 weeks prior to registration)
• STEP 2: Total bilirubin within 1.5 times the normal limits (must be obtained =< 2 weeks prior to registration).
• STEP 2: SGOT (AST) or SGPT (ALT) within 2.0 times the normal limits (must be obtained =< 2 weeks prior to registration).
• STEP 2: Alkaline phosphatase within 1.5 times the normal limits (must be obtained =< 2 weeks prior to registration).
• STEP 2: Patients must not be pregnant or breast-feeding as chemotherapy, radiation, and immunotherapy may have possible teratogenicity effects; in addition, complications from pregnancy may interfere with the ability of patients to have an uninterrupted therapy. All women of childbearing potential must have a blood test or urine study within 2 weeks prior to registration to rule out pregnancy. A women of childbearing potential is any female, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months).
• STEP 2: Patients of childbearing potential must use an accepted and effective method of contraception or abstain from sexual intercourse for at least one week prior to the start of treatment, and continue for 5 months after the last dose of protocol treatment. Patients must also not donate ova during this same time period.
• STEP 2: Patients must have measurable disease at the time of documented progression
• NOTE: For patients that have undergone salvage surgery for disease recurrence, measurable disease is not required at the time of registration to Step 2
• STEP 2: Patients must have tumor measurements with CT of neck and CT of chest (or CT of neck and FDG PET/CT if standard of care) within 4 weeks prior to Step 2 registration
• NOTE: Patients that have undergone salvage surgery for disease recurrence prior to Step 2 are not required to have measurable disease post-resection, but must have CT of neck and CT of chest (or CT of neck and FDG PET/CT if standard of care) after salvage surgery and within 4 weeks prior to step 2 registration to establish a baseline prior to nivolumab

• Patients must have a body surface area of > 0.3 m^2 at the time of enrollment
• Existing or recurrent desmoid tumor that is deemed not amenable to surgery without significant morbidity and progressed by >= 10% as assessed by RECIST version (v)1.1 within the 6-month period prior to study enrollment
• Patients must have had histologic verification of the desmoid tumor
• Patients must have measurable disease by RECIST v1.1 criteria
• Patient must have received at least one prior course of systemic therapy for desmoid tumor
• Patients must have a Lansky (for patients =< 16 years of age) or Karnofsky (for patients > 16 years of age) performance status score of >= 50. Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing performance score
• Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, surgery or radiotherapy prior to entering this study. Patients may not be using or anticipate using these treatments after the observed progression or within the time period stated below
• Cytotoxic chemotherapy: must not have received within 2 weeks of entry onto this study (4 weeks if prior nitrosourea)
• Small molecule tyrosine kinase inhibitors (e.g., sorafenib, pazopanib, imatinib), rapalogs (e.g., temsirolimus, everolimus, sirolimus) or anti estrogen therapy (e.g., tamoxifen): may not have received within 28 days prior to the first dose of study treatment
• Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
• Biologic (anti-neoplastic agent): at least 7 days since the completion of therapy with a biologic agent
• Local regional tumor directed therapy, including, but not limited to small port radiation therapy (RT), radiofrequency ablation, cryotherapy, surgery: at least 2 weeks since these therapies and all toxicity must have resolved to grade =< 1. If prior craniospinal RT or if >= 50% radiation of pelvis then >= 6 months must have elapsed. If other substantial bone marrow (BM) radiation, then >= 6 weeks must have elapsed
• Stem cell transplant (SCT): No evidence of active graft versus (vs.) host disease. For allogeneic SCT, >= 6 months must have elapsed
• No prior gamma-secretase, Notch or beta-catenin inhibitor
• Investigational drugs: must not have received investigational drug within 4 weeks of study entry, and all toxicities related to prior therapy must be resolved to grade =< 1 or baseline
• Concomitant Medication Restrictions
• Steroids: patients who are receiving dexamethasone must be on a stable or tapering dose for at least 2 weeks prior to study entry. Use of steroids for non-tumor indications (e.g., asthma or severe allergic reaction) is permitted
• Growth factor(s): must not have received within 1 week of entry onto this study
• Patients who are currently receiving drugs that are strong inducers or moderate to strong inhibitors of CYP3A4 are not eligible. Strong inducers or moderate to strong inhibitors of CYP3A4 are not allowed from 14 days prior to enrollment to the end of protocol therapy. Note: CYP3A4 inducing anti-epileptic drugs on a stable dose, are allowed
• Must not be receiving non-steroidal anti-inflammatory drugs (NSAIDs) as treatment for desmoid tumor after the observed progression and patient agrees to not use NSAIDs while on study. Occasional use (defined as =< 3 times per week) for treatment of pain is permitted
• Peripheral absolute neutrophil count (ANC) >= 1000/uL (within 7 days prior to enrollment)
• Platelet count >= 100,000/uL (transfusion independent) (within 7 days prior to enrollment)
• Hemoglobin >= 9.0 g/dL (may receive red blood cell [RBC] transfusions) (within 7 days prior to enrollment)
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 or a serum creatinine based on age/gender as follows (within 7 days prior to enrollment):
• Age: Maximum serum creatinine (mg/dL)
• Age: 1 to < 2 years; Maximum serum creatinine (mg/dL): 0.6 (male and female)
• Age: 2 to < 6 years; Maximum serum creatinine (mg/dL): 0.8 (male and female)
• Age: 6 to < 10 years; Maximum serum creatinine (mg/dL): 1 (male and female)
• Age: 10 to < 13 years; Maximum serum creatinine (mg/dL): 1.2 (male and female)
• Age: 13 to < 16 years; Maximum serum creatinine (mg/dL): 1.5 (male); 1.4 (female)
• Age: >= 16 years; Maximum serum creatinine (mg/dL): 1.7 (male); 1.4 (female)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (unless secondary to previously diagnosed Gilbert's syndrome) (within 7 days prior to enrollment)
• Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L
• Note: For the purpose of this study, the ULN for SGPT (ALT) has been set to the value of 45 U/L (within 7 days prior to enrollment)
• Adequate cardiac function defined as:
• Corrected QT (QTc) interval < 470 ms
• No history of congenital or acquired prolonged QTc syndrome
• No history of clinically significant cardiac arrhythmias, congestive heart failure, stroke or myocardial infarction within 6 months prior to study entry
• All patients and/or their parents or legal guardians must sign a written informed consent
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met
• Active or chronic infection within 7 days prior to study entry
• Patients with gastrointestinal conditions that might predispose for drug intolerability or poor drug absorption (e.g., inability to take oral medication, prior surgical procedures affecting absorption (e.g., gastric bypass), malabsorption syndrome, and active peptic ulcer disease)
• Patients with ulcerative colitis, inflammatory bowel disease, or a partial or complete small bowel obstruction
• Known active infection with hepatitis B, hepatitis C or human immunodeficiency virus (HIV)
• Patients with a prior history of malignancy, with the exceptions of desmoid tumor(s) and non-melanoma skin cancer, who are not in remission for more than 3 years
• Patients who are unable to swallow tablets. Tablets must not be crushed or chewed. Administration of nirogacestat via gastrostomy tube or nasogastric tube is not allowed
• Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study
• Sexually active female patients of reproductive potential who have not agreed to use 1 method of highly effective contraceptive (including copper-containing intrauterine device, condom with spermicidal foam/gel/film/cream/suppository, bilateral tubal ligation, established use of inserted, injected or implanted hormonal method of contraception, abstinence, or male sterilization) for the duration of their study participation and for at least 6 months after last dose of nirogacestat. A second form of contraception (i.e. barrier method) is required for patients who are using hormonal contraception as nirogacestat may reduce the efficacy of hormonal contraceptives
• Sexually active male patients of reproductive potential who have not agreed to use a condom and their female partner who have not agreed to use one of the highly effective methods of contraception mentioned above during treatment and for at least 90 days after the last dose of nirogacestat
• Female patients who are breastfeeding
• Female patients who are pregnant. These patients are excluded because there is no available information regarding the effects of nirogacestat on the developing human fetus and inhibition of gamma-secretase is known to be teratogenic
• Female patients of childbearing potential unless a negative pregnancy test result has been obtained

• Biopsy proven locally recurrent adenocarcinoma of the prostate after the completion of definitive radiation therapy for initially diagnosed prostate cancer.
• Biopsy must be performed within 182 days of trial registration
• Biopsy should be a standard sextant biopsy AND either a targeted MR/ultrasound guided biopsy or saturation biopsy or both.
• Initial cancer diagnosis that fits these specific criteria:
• Stages T1-T3a
• Nx or N0
• Mx or M0
• Eligible initial definitive radiotherapy modalities include:
• External beam radiotherapy, with photon or proton beam therapy
• Conventional or moderately hypofractionated radiotherapy
• Extremely hypofractionated external beam radiotherapy (Stereotactic body radiation therapy)
• Definitive Brachytherapy:
• Low-dose rate
• High-dose rate
• Locally recurrent disease confined to the prostate +/- seminal vesicles and immediately adjacent tissue, as evaluated by the following:
• History/Physical examination
• Radiographically node negative disease (N0), as defined by CT or MR of pelvis +/- abdomen within 6 months of registration.
• No evidence of bone metastases (M0) on bone scan within 6 months of registration.
• Fluciclovine-PET is encouraged, but not required
• Patients receiving ADT are eligible as long as they meet the other eligibility criteria. However, the duration of all ADT must be documented.
• Current ECOG Performance status Scale 0-2
• Current International Prostate Symptom Score (IPSS) < 20
• The patient must be medically suitable to receive general anesthesia.
• The patient must be able and willing to sign a study-specific written informed consent form before study entry.
• Preregistration GI or GU toxicity (for any reason) grade ≥ 3 as defined in CTCAE version 4.03. That is, grade ≥ 3 GU or GI toxicity after first course of radiotherapy
• Patients receiving any other investigational agents.
• Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, severely symptomatic congestive heart failure, cardiac arrhythmia, recent myocardial infarction in last 6 months, or psychiatric illness/social situations that could limit compliance with study requirements.
• Patients who have received chemotherapy or immunotherapy within one month prior to study enrollment, other than ADT

1. At least 18 years of age. Both men and women and members of all races and ethnic groups will be included. 2. Willing and able to provide written informed consent 3. Pathologic diagnosis of rectal adenocarcinoma 4. T3-4 and/or N+ disease per AJCC 8th edition 5. No prior treatment for rectal adenocarcinoma 6. Eastern Cooperative Group (ECOG) performance status of 0-2. 7. Laboratory values supporting acceptable organ and marrow function within 30 days of eligibility confirmation. Defined as follows:
• WBC ≥ 3,000/mL;
• ANC WBC ≥ 1,000/mL;
• PLT ≥ 75,000/mL;
• T Bili ≤ 1.5 x upper limit of normal (ULN);
• AST/ALT ≤ 2.5 x ULN;
• Creatinine not above ULN, or creatinine clearance >50 mL/min/1.73 m2 for participants with creatinine levels above institutional normal. 8. All men, as well as women of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) starting with the first dose of study therapy through 90 days after the last dose of study drugs. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. A female of child-bearing potential is any woman (regardless of sexual orientation, marital status, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
• Has not undergone a hysterectomy or bilateral oophorectomy; or
• Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months). 1. Distant nodal disease (retroperitoneal nodes) including inguinal nodes, or any metastatic disease by CT. 2. Prior RT to the pelvis. 3. Uncontrolled comorbid illness or condition including congestive heart failure, unstable angina, cardiac arrhythmia, or psychiatric illness that would limit compliance with the study requirements. 4. Psychiatric illness/social situations that would limit consenting and compliance with study requirements. 5. Participants who are pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants

• Signed informed consent form by patients and/or patients' parents/legal guardians and age appropriate assent form by the patients obtained before any study specific procedure
• Male or female patients from 6 months to ≤ 21 years old at the time of study enrollment
• Confirmation of diagnosis:
• Phase I: Patients must have histologic verification of a solid tumor or lymphoma malignancy at diagnosis, with measurable or evaluable disease, for which there is no standard curative anti-cancer treatment or treatment is no longer effective and must have received ≥ 1 prior line of therapy.
• Phase II: patients must have histologically verified tumor at initial diagnosis and radiologically or histologically confirmed status at inclusion as indicated in the following: neuroblastoma, osteosarcoma, rhabdomyosarcoma or Ewing sarcoma.
• In Phase II, patients with solid tumors must have measurable disease (evaluable disease is acceptable for neuroblastoma and Ewing sarcoma). Tumor assessment will be done via computed tomography (CT), magnetic resonance imaging (MRI) or positron emission tomography-computed tomography (PET-CT). Tumor lesions situated in a previously irradiated area, or in an area subjected to other loco-regional therapy, may be considered measurable if there has been demonstrated progression in the lesion. Bone scans (if clinically indicated) should be obtained within ≤ 4 weeks prior to the start of treatment.
• Performance level: Lansky ≥ 50% for patients ≤ 16 years of age and Karnofsky ≥ 50% for patients > 16 years of age.
• Adequate bone marrow, renal and liver function.
• Active or uncontrolled infection (National Cancer Institute (NCI)-CTCAE Grade ≥ 2).
• History or concurrent condition of interstitial lung disease of any severity and/or severely impaired lung function (as judged by the investigator).
• Diabetes mellitus.
• Uncontrolled arterial hypertension despite optimal medical management (per institutional guidelines).
• Patients with central nervous system (CNS) malignancies.

1. Male or female subjects at least 18 years of age. 2. Ability to understand and the willingness to sign a written informed consent. 3. Histological or biopsy proven NSCLC. 4. ECOG performance status of 0-3. 5. Node negative (T1 to T3N0M0), centrally located (within 2cm in all directions around the proximal bronchial tree, including ultra-central tumors, abutting the bronchial tree or trachea) or large (>1-7cm) Non-Small Cell Lung Cancer (NSCLC), judged acceptable for SBRT by the treating Investigator 6. Adequate end-organ function, based on routine clinical and laboratory workup: 1. ANC >1,000 cells/µl, Platelets ≥ 75,000 cells/µl, Hemoglobin ≥ 7.0 g/dl 2. Serum creatinine ≤ 2 x ULN or calculated creatinine clearance ≥ 30 ml/min 3. Total bilirubin ≤ 1.5 x ULN (or direct bilirubin below the ULN), AST and ALT ≤ 2.5 x ULN 7. Males and females of must agree to use effective contraception starting prior to the first day of treatment and continuing after the last dose of GC4711/Placebo for 30 days (females) and 90 days (males). 1. Subjects with confirmed nodal and/or distant disease(including brain), according standard workup by local investigator 2. Subjects with peripheral lesions 1cm or smaller 3. Prior treatment with immunotherapy within 3 months prior to Day 1 dosing. 4. Prior intra-thoracic radiotherapy or surgery with substantial overlap to planned radiation fields as determined by the treating radiation oncologist. 5. Subjects not recovered/controlled from prior treatment-related (chemotherapy or targeted therapy) toxicities judged by treating physician. 6. Uncontrolled malignancy other than lung cancer that requires active treatment or is deemed by the treating physicians to be likely to affect the subject's survival duration. 7. History of allergic reactions attributed to compounds of similar chemical or biologic composition to GC4711. 8. Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements. 9. Participation in other clinical trials actively testing new anti-cancer treatments, unless previously written approval is provided by the Sponsor. 10. Requirement for concurrent treatment with nitrates or other drugs that may, in the judgment of the treating investigator, create a risk for a precipitous decrease in blood pressure. 11. Female subjects who are pregnant or breastfeeding. 12. Any other conditions that, in the Investigator's opinion, might indicate the subject to be unsuitable for the study.

1. Histological or biopsy proven adenocarcinoma of the pancreas. Cytology is acceptable if histology cannot be obtained. 2. Newly diagnosed non-metastatic PC judged by tumor board to be feasible for SBRT 3. Completed at least 6 weeks of chemotherapy consisting of FOLFIRINOX, mFOLFIRINOX, or a gemcitabine-based doublet regimen prior to start of SBRT 4. Remain non-metastatic as confirmed by a CT scan at screening. 5. Female or male subjects ≥ 18 years of age 6. ECOG performance status of 0-2 7. Adequate end-organ function 1. Subjects with documented metastatic disease 2. First-line chemotherapy other than FOLFIRINOX, mFOLFIRINOX, and/or a gemcitabine-based doublet regimen 3. Prior abdominal RT with substantial overlap in radiation fields 4. Subjects not recovered/controlled from treatment-related toxicities 5. Uncontrolled malignancy other than PC 6. Uncontrolled gastric or duodenal ulcer disease within 30 days of dosing 7. Visible invasion of bulky tumor into the lumen of the bowel or stomach on endoscopy

• All patients must have a pathologically confirmed diagnosis of neuroblastoma, ≤ 30.99 years of age with history of relapsed/refractory neuroblastoma.
• All patients must have completed upfront therapy with at least 4 cycles of aggressive multi-drug chemotherapy.
• Specific Criteria by Arm: Arms 1 and 2: Subjects with no active disease: i. No evidence of residual disease by CT/MRI and MIBG scan (or PET for patients who have a history of MIBG non-avid disease). o Note: Patients with residual masses detected by CT/MRI may be considered in CR if their MIBG is negative or if MIBG positive and evaluated by PET and found to have negative PET scans; biopsy confirmation may be considered if there is still reasonable concern for persistent disease but is not required. ii. No evidence of disease metastatic to bone marrow. Arm 3: Measurable or evaluable disease, including at least one of the following: Measurable tumor by CT or MRI; or a positive MIBG and PET; or positive bone marrow biopsy/aspirate in at least one site.
• Timing from prior therapy: Enrollment (first dose of DFMO) no later than 60 days from last dose of the most recent therapy.
• Subjects must have fully recovered from the acute toxic effects of all prior anti- cancer chemotherapy and be within the following timelines: 1. Myelosuppressive chemotherapy: Must not have received within 2 weeks of enrollment onto this study (6 weeks if prior nitrosourea). 2. Hematopoietic growth factors: At least 5 days since the completion of therapy with a growth factor. 3. Biologic (anti-neoplastic agent): At least 7 days since the completion of therapy with a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. The duration of this interval must be discussed with the Study Chair. 4. Immunotherapy: At least 6 weeks since the completion of any type of immunotherapy, e.g. tumor vaccines, CAR-T cells. 5. Anti-GD2 Monoclonal antibodies: At least 2 weeks must have elapsed since prior treatment with a monoclonal antibody. 6. XRT: At least 14 days since the last treatment except for radiation delivered with palliative intent to a non-target site. 7. Stem Cell Transplant: 1. Allogeneic: No evidence of active graft vs. host disease 2. Allo/Auto: ≥ 2 months must have elapsed since transplant. 8. MIBG Therapy: At least 8 weeks since treatment with MIBG therapy
• Subjects must have a Lansky or Karnofsky Performance Scale score of 60% or higher.
• Life expectancy > 2 months
• All clinical and laboratory studies for organ functions to determine eligibility must be performed within 7 days prior to first dose of study drug unless otherwise indicated below.
• Subjects must have adequate organ functions at the time of registration:
• Hematological: Total absolute neutrophil count ANC ≥750/μL
• Liver: Subjects must have adequate liver function as defined by AST and ALT <5x upper limit of normal (Normal=45), Bilirubin <1.5x upper limit normal (Normal=1.0). Normal PT, PTT, fibrinogen.
• Renal: Adequate renal function defined as (perform one of the following): Creatinine clearance or radioisotope GFR 70 mL/min/1.73 m2 or greater or a serum creatinine based on age/gender
• Females of childbearing potential must have a negative pregnancy test. Patients of childbearing potential must agree to use an effective birth control method. Female patients who are lactating must agree to stop breast-feeding.
• Written informed consent in accordance with institutional and FDA guidelines must be obtained from all subjects (or patients' legal representative).
• BSA of <0.25 m2.
• Subjects that received DFMO at a dose higher than 1000mg/m2 BID prior to this study are not eligible.
• Subjects that received a dose of DFMO in combination with etoposide are not eligible.
• Investigational Drugs: Subjects who are currently receiving another investigational drug are excluded from participation.
• Anti-cancer Agents: Subjects who are currently receiving other anticancer agents are not eligible. Subjects must have fully recovered from hematological and bone marrow suppression effects of prior chemotherapy.
• Infection: Subjects who have an uncontrolled infection are not eligible until the infection is judged to be well controlled in the opinion of the investigator.
• Subjects who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study, or in whom compliance is likely to be suboptimal, should be excluded.

• Patients must have biopsy-proven metastatic non-small cell lung cancer and eligible for receipt of immunotherapy Patients can present with either de novo metastatic disease or recurrent disease Patients must have at least one (1) symptomatic or progressive metastatic sites with no more than 10 metastatic sites, based on standard imaging studies Patients cannot have received any prior radiation therapy or surgery to the intended radiation treatment area (index lesion) Patients with brain metastases may be enrolled if all lesions are treated with radiation therapy or surgery prior to start of protocol therapy Metastases in major lower extremity weight-bearing bones or spine should undergo surgical stabilization if indicated Age greater than or equal to 18 years. Both men and women and members of all races and ethnic groups will be included Eastern Cooperative Oncology Group Performance status 0 to 2 (Appendix A) Adequate normal organ and bone marrow function as defined by:
• Haemoglobin ≥9.0 g/dL
• Absolute neutrophil count (ANC) ≥ 1.0 × 109 /L
• Platelet count ≥75 × 109/L
• Serum bilirubin ≤1.5 x institutional upper limit of normal (ULN). This will not apply to patients with confirmed Gilbert's syndrome (persistent or recurrent hyperbilirubinemia that is predominantly unconjugated in the absence of hemolysis or hepatic pathology), who will be allowed only in consultation with their physician.
• AST (SGOT)/ALT (SGPT) ≤2.5X institutional upper limit of normal unless liver metastases are present, in which case it must be ≤5X ULN
• Measured creatinine clearance (CL) >40 mL/min or Calculated creatinine CL>40 mL/min by the Cockcroft-Gault formula (Cockcroft and Gault 1976) or by 24-hour urine collection for determination of creatinine clearance: Males: Creatinine CL (mL/min) = Weight (kg) x (140
•Age) 72 x serum creatinine (mg/dL) Females: Creatinine CL (mL/min) = Weight (kg) x (140
•Age) x 0.85 72 x serum creatinine (mg/dL) All men, as well as women of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. Medically accepted forms of birth control include male condoms plus spermicide, diaphragm, cervical cap, the placement of a Copper T intrauterine device (IUD), birth control pills, Levonorgesterel-releasing intrauterine system (IUS), hormone implants or injections, or combined pill, minipill patch, or a partner who has undergone a vasectomy (surgical sterility). A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
• Has not undergone a hysterectomy or bilateral oophorectomy; or
• Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months). Life expectancy greater than six (6) months Body weight greater than 30 kg Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. Written informed consent and any locally required authorization (e.g., Health Insurance Portability and Accountability Act in the US, European Union [EU] Data Privacy Directive in the EU) obtained from the patient/legal representative prior to performing any protocol-related procedures, including screening evaluations. Patient is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up.
• Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [e.g., colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome [granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc]). The following are exceptions to this criterion:
• Patients with vitiligo or alopecia
• Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement
• Any chronic skin condition that does not require systemic therapy
• Patients without active disease in the last 5 years may be included but only after consultation with the study physician
• Patients with celiac disease controlled by diet alone Administration of two or more lines of systemic therapy for the diagnosis of metastatic lung cancer • Prior receipt of systemic therapy for the management of high-risk early stage or locally advanced non-small cell lung cancer, prior to the development of metastatic disease, would not count towards the number of receipt of systemic therapy Subjects may not be receiving any other investigational agents for the treatment of the cancer under study. Patients with untreated brain metastases Patients with progressive metastatic disease involving the skin or subcutaneous tissues, esophagus, stomach, intestines, or mesenteric lymph nodes that are felt to be too high risk to treat with radiation therapy to protocol dose. Patients cannot have pathologic fracture at the evaluated site Patients cannot have untreated spinal cord compression History of allergic reactions attributed to compounds of similar chemical or biologic composition to durvalumab or other agents used in study Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements Subjects must not be pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants Male or female patients of reproductive potential who are not willing to employ effective birth control from screening to 90 days after the last dose of durvalumab monotherapy Participation in another clinical study with an investigational product during the last 3 months Concurrent enrolment in another clinical study, unless it is an observational (non-interventional) clinical study or during the follow-up period of an interventional study Receipt of the last dose of anticancer therapy (chemotherapy, immunotherapy, endocrine therapy, targeted therapy, biologic therapy, tumor embolization, monoclonal antibodies) ≤7 days prior to the first dose of study drug If sufficient wash-out time has not occurred due to the schedule or PK properties of an agent, a longer wash-out period will be required, as agreed by AstraZeneca/MedImmune and the investigator Any unresolved toxicity NCI CTCAE Grade ≥2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria:
• Patients with Grade ≥2 neuropathy will be evaluated on a case-by-case basis after consultation with the Study Physician.
• Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab may be included only after consultation with the Study Physician. Any concurrent chemotherapy, immunotherapy, biologic, or hormonal therapy for cancer treatment. Concurrent use of hormonal therapy for non-cancer-related conditions (e.g., hormone replacement therapy) is acceptable. Major surgical procedure (as defined by the Investigator) within 28 days prior to the first dose of immunotherapy. Note: Local surgery of isolated lesions for palliative intent is acceptable History of allogenic organ transplantation History of another primary malignancy except for:
• Malignancy treated with curative intent and with no known active disease ≥5 years before the first dose of immunotherapy and of low potential risk for recurrence
• Adequately treated non-melanoma skin cancer or lentigo malignant without evidence of disease
• Adequately treated carcinoma in situ without evidence of disease History of leptomeningeal carcinomatosis History of active primary immunodeficiency Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and TB testing in line with local practice), hepatitis B (known positive HBV surface antigen (HBsAg) result), hepatitis C. Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible. Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab. The following are exceptions to this criterion:
• Intranasal, inhaled, topical steroids, or local steroid injections (e.g., intra articular injection)
• Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or its equivalent
• Steroids as premedication for hypersensitivity reactions (e.g., CT scan premedication) Receipt of live attenuated vaccine within 30 days prior to the first dose of immunotherapy. Other forms of vaccines, such as mRNA, recombinant protein, and non-replicating vector-based vaccines, are permitted. Note: Patients, if enrolled, should not receive live vaccine whilst receiving immunotherapy and up to 30 days after the last dose of immunotherapy Receipt of any medications listed below: Patients on this study should not be on any targeted systemic therapies such as those directed at EGFR mutations, ALK or ROS1 gene rearrangements, BRAF V600E mutation, or NTRK gene fusions. Other anti-cancer treatments are also not allowed on the study and are listed below. Supportive medications may be given at any point during treatment at the discretion of the treating physician, such as anti-emetics, pain medications, anti-diarrheals, nutritional supplementations, and anti-depressants. Anti-oxidant medications in excess of daily recommended values are not allowed.
• Any investigational anticancer therapy other than those under investigation in this study should not be given concomitantly whilst the patient is on study treatment.
• mAbs against CTLA-4, PD-1, or PD-L1 other than those under investigation in this study should not be given concomitantly whilst the patient is on study treatment.
• Any concurrent chemotherapy, radiotherapy, immunotherapy, biologic, or hormonal therapy for cancer treatment other than those under investigation in this study should not be given concomitantly whilst the patient is on study treatment. (Concurrent use of hormones for non-cancer-related conditions [e.g., insulin for diabetes and hormone replacement therapy] is acceptable. Local treatment of isolated lesions, excluding target lesions, for palliative intent is acceptable [e.g., by local surgery or radiotherapy])
• Immunosuppressive medications including, but not limited to, systemic corticosteroids at doses exceeding 10 mg/day of prednisone or equivalent, methotrexate, azathioprine, and tumor necrosis factor-α blockers should not be given concomitantly, or used for premedication prior to the IO infusions. The following are allowed exceptions:
• Use of immunosuppressive medications for the management of IP-related AEs,
• Use in patients with contrast allergies.
• In addition, use of inhaled, topical, and intranasal corticosteroids is permitted. A temporary period of steroids will be allowed if clinically indicated and considered to be essential for the management of non-immunotherapy related events experienced by the patient (e.g., chronic obstructive pulmonary disease, radiation, nausea, etc.).
• EGFR tyrosine kinase inhibitors (TKI) should not be given concomitantly, and should be used with caution in the 90 days post last dose of durvalumab.
• Live attenuated vaccines should not be given through 30 days after the last dose of IP (including SoC)
• Herbal and natural remedies which may have immune-modulating effects should not be given concomitantly unless agreed by the sponsor

• Be male at any age.
• Be scheduled to undergo surgery, chemotherapy, drug treatment and/or radiation for the treatment or prevention of a medical condition or malignancy with risk of causing permanent and complete loss of subsequent testicular function.
• Or, have a medical condition or malignancy that requires removal of all or part of one or both testicles.
• Have newly diagnosed or recurrent disease. Those who were not enrolled at the time of initial diagnosis (i.e., patients with recurrent disease) are eligible if they have not previously received therapy that is viewed as likely to result in complete and permanent loss of testicular function.
• Have two testicles if undergoing elective removal of all or part of a testicle for fertility preservation only. Note: removal of both testicles will limit fertility preservation options.
• Sign an approved informed consent and authorization permitting the release of personal health information. The patient and/or the patient's legally authorized guardian must acknowledge in writing that consent for specimen collection has been obtained, in accordance with institutional policies approved by the U.S. Department of Health and
• Consent for serum screening tests for infectious diseases [HIV-1, HIV-2, Hepatitis B, Hepatitis C], to be performed at the time of testicular tissue harvesting.
• Undergo a full history and physical examination and obtain standard pre-operative clearance (based on the most recent ACC/AHA Guideline for Perioperative Cardiovascular Evaluation for Noncardiac Surgery) as determined by their primary surgeon.
• Participating in long term follow-up is a requirement of the protocol.
• Diagnosed with psychological, psychiatric, or other conditions which prevent giving fully informed consent.
• Diagnosed with an underlying medical condition that significantly increases their risk of complications from anesthesia and surgery.