• 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

• 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. Voluntarily signed consent; 2. Age of ≥ 18 and < 80 years; 3. Received sufficient prior lines of myeloma therapy; 4. Received treatment with at least one proteasome inhibitor, one IMiD and CD38 anti body. 5. The patient must be refractory to the last line of therapy. 6. The patients should have measurable disease per IMWG definition. 7. Estimated life expectancy > 12 weeks; 8. ECOG performance score 0-1; 9. Patients should have reasonable CBC counts, renal and hepatic functions; 10. Sufficient venous access for leukapheresis collection, and no other contraindications to leukapheresis; 11. Women of childbearing age must undergo a serum pregnancy test with negative results before screening, and are willing to use effective and reliable method of contraception for at least 12 months after T cell infusion; 12. Men must be willing to use effective and reliable method of contraception for at least 12 months after T cell infusion. 1. Pregnant or lactating women; 2. HIV, active hepatitis C virus (HCV), or active hepatitis B virus (HBV) infection; 3. Any uncontrolled active infection; 4. AEs from previous treatment that have not recovered; 5. Patients who have had anti-BCMA therapy; 6. Patients who have graft versus host disease (GvHD); 7. Patients have received stem cell transplantation one year before leukapheresis; 8. Patients have received any anti-cancer treatment before leukapheresis; 9. Patients have received steroids before leukapheresis or lymphodepletion; 10. Patients have plasma cell leukemia, Waldenström macroglobulinemia, POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome or clinically significant symptomatic immunoglobulin light chain (AL) amyloidosis with evidence of end-organ damage; 11. Patients have been administered live attenuated vaccine before leukapheresis or lymphodepletion; 12. Patients allergic to Flu, Cy, tocilizumab, dimethyl sulfoxide (DMSO) or zevor-cel CAR BCMA T cell; 13. Patients have clinical significant cardiac conditions that researchers believe that participating in this clinical trial may endanger the health of the patients; 14. Patients have clinical significant pulmonary conditions; 15. Patients are known to have active autoimmune diseases including but not limited to psoriasis, rheumatoid arthritis and other needs of long-term immunosuppressive therapy; 16. Patients with second malignancies in addition to MM are not eligible; 17. Patients have central nervous system (CNS) metastases or CNS involvement; 18. Patients have significant neurologic disorders; 19. Patients are unable or unwilling to comply with the requirements of clinical trial; 20. Patients have received major surgery prior to leukapheresis or prior to lymphodepletion.

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)

• 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

• 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

Key
• Eastern Cooperative Oncology Group (ECOG) performance status ≤1 Individual cases of patients with ECOG 2 performance status, whose ECOG status is expected to improve as a consequence of effective therapy, may be discussed with the medical monitor for potential enrollment
• Patients must have symptomatic myeloma at the time of study entry with myeloma-related organ damage or tissue dysfunction (such as hypercalcemia, renal insufficiency, bone lytic lesions, or anemia)
• Patients must have myeloma that is measurable by either serum or urine evaluation of the monoclonal component or by assay of serum free light chain (FLC)
• Measurable disease is defined as 1 or more of the following: 1. Serum M-protein ≥1 g/dL, 2. Urine M-protein ≥200 mg/24-hour, and/or 3. FLC assay with involved FLC level ≥10 mg/dL with an abnormal serum FLC ratio
• A patient with Immunoglobulin A (IgA) myeloma but without measurable M-protein may be enrolled if quantitative IgA levels are elevated and can be followed longitudinally
• A patient with non-secretory MM may be considered for enrollment after discussion with the sponsor that includes the feasibility of an individualized plan for response assessment
• Patients with MM who have exhausted all therapeutic options that are expected to provide meaningful clinical benefit, either through disease relapse, treatment refractory disease, or intolerance or refusal of the therapy, and including either: 1. Progression on or after at least 3 lines of therapy, or intolerance of therapy, including a proteasome inhibitor, an IMiD, and an anti-CD38 antibody, OR 2. Progression on or after an anti-CD38 antibody and have disease that is "double refractory" to a proteasome inhibitor and an IMiD, or intolerance of therapy. The anti-CD38 antibody may have been administered alone or in combination with another agent such as a proteasome inhibitor. Refractory disease is defined as lack of response or relapse within 60 days of last treatment.
• Adequate hematologic function as measured by: 1. Platelet count > 50 x 109/L. A patient may not have received a platelet transfusion within 7 days in order to meet this platelet eligibility requirement. 2. ANC > 1.0 x 109/L. A patient may not have received granulocyte colony stimulating factor (G-CSF) within 2 days in order to meet this absolute neutrophil count eligibility requirement. 3. Hemoglobin > 8.0 g/dL
• Adequate hepatic function, defined as: 1. Total bilirubin ≤1.5 x ULN 2. Transaminase (ALT, AST) ≤2.5 x ULN 3. Alkaline phosphatase ≤2.5 x ULN
• Patients with Gilbert syndrome do not need to meet this total bilirubin requirement provided that the total bilirubin is unchanged from the baseline value. d. Serum creatinine clearance by Cockcroft-Gault >30 mL/min
• A patient with a creatinine clearance by Cockcroft-Gault who does not meet eligibility criteria may be considered for enrollment if a measured creatinine clearance (based on 24-hour urine collection or other reliable method) is >30 mL/min
• Life expectancy of at least 6 months Key
• Patients with known MM brain lesions or meningeal involvement with MM (suspected central nervous system (CNS) myeloma should be excluded by radiographic imaging and/or lumbar puncture, as appropriate)
• History of neurodegenerative condition or CNS movement disorder
• Cardiac ejection fraction <40% by echocardiogram or multi-gated acquisition scan (MUGA)
• Prior treatment with any anti-BCMA antibody (including antibody-drug conjugate or bispecific antibody) or BCMA-directed CAR T therapy
• Uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; or other uncontrolled infection 1. Patients with HIV who have controlled infection (undetectable viral load and CD4 count above 350 cells/microliter either spontaneously or on a stable antiviral regimen) are permitted. 2. Patients with hepatitis B (Hepatitis B Surface Antigen Test positive [HepBsAg+]) who have controlled infection (serum HBV DNA polymerase chain reaction [PCR] that is below the limit of detection AND receiving anti-viral therapy for hepatitis B) are permitted. 3. Patients who are HCV antibody-positive (HCV Ab+) who have controlled infection (undetectable HCV RNA by PCR either spontaneously or in response to a successful prior course of anti-HCV therapy) are permitted.
• History of allogeneic stem cell transplantation at any time, or autologous stem cell transplantation within 12 weeks of the start of study treatment NOTE: Other protocol defined Inclusion/Exclusion Criteria apply.

• 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.

1. Age ≤12 years at the time of signing the informed consent 2. Male patients with severe (<1%) or moderate (<2%) hemophilia A 3. History of a high titer (>5 BU) inhibitor 4. Within 1 year of successful ITI, according to ISTH definitions (inhibitor titer <0.6 BU, recovery more than 60% of expected, and half-life of >6 hours). Successful ITI has been achieved with any FVIII concentrate. 5. Currently on emicizumab or willing to alter their prophylaxis treatment to emicizumab per study protocol. 1. Age >12 years at the time of signing the informed consent 2. Partial tolerance (not meeting criteria for complete tolerance per ISTH) 3. History of anti-drug antibodies to emicizumab 4. Unwilling to receive exposure to intravenous FVIII concentrates. 5. History per the investigator's discretion of non-compliance to prior therapy.

• Any patient of the Children's Medical Center CCBD
• 5-12 years of age
• Patient requiring their port accessed twice or more within a 6 months period
• Ability to understand and the willingness to sign a written informed consent. Exclusion Criteria
• Subjects younger than 5 and older than 12
• Patients requiring recovery in PICU or sites other than PACU
• If parents or subject is not willing to participate
• Subjects with severe developmental delays and subjects with developmental challenges preventing them from keeping the VR device on are also excluded
• Patients who will not be in CCBD for port access at least twice in 6 months

• INCLUSION CRITERIA:
• Patients of any age or either gender with indications for receipt of investigational HPC-CORD BLOOD who are participating in an NIH-IRB approved clinical trial for unrelated hematopoietic stem cell transplantation.
• Signed informed consent (and assent when applicable). EXCLUSION CRITERIA:
• Patients who are receiving licensed CB products (only)
• Patients who are receiving unlicensed CB products from other CB banks (i.e. NMDP)

Phase 1b Key 1. Age 21 years or younger at the time of initial ALL diagnosis and age > 1 year at the time of study treatment initiation. 2. Subjects must have a diagnosis of relapsed or refractory ALL with ≥ 5% blasts in the bone marrow (M2 or M3 disease), with or without extramedullary disease. -To be eligible, subjects must have had 1 or more prior therapeutic attempts, defined as:
• Early first relapse (< 36 months from original diagnosis) after achieving a CR (B-ALL) or first relapse any time following the original diagnosis after achieving a CR (T-ALL)
• First refractory bone marrow relapse occurring any time after original diagnosis after achieving a CR (ie, ≥1 failed attempt to induce a second remission) OR
• Relapse after achieving a CR following the first or subsequent relapse (i.e., ≥ 2 relapses) OR
• Failing to achieve a CR from original diagnosis after at least 1 induction attempt 3. Subjects must have fully recovered from the acute toxic effects of all previous chemotherapy, immunotherapy, or radiotherapy treatment before enrollment. 4. Subjects must have a serum creatinine level that is ≤ 1.5 × institutional upper limit of normal (ULN) according to age. If serum creatinine level is > 1.5 × ULN, the subject must have a calculated creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70 mL/min/1.73 m2. 5. Adequate liver function, defined as both of the following:
• Total bilirubin ≤ 1.5 × institutional ULN except in the presence of Gilbert Syndrome
• Alanine aminotransferase (ALT) ≤ 5 × institutional ULN 6. Performance status: Karnofsky or Lansky scores ≥ 50 for subjects > 16 years old or ≤ 16 years old, respectively. Phase 2 1. Subject's legally acceptable representative has provided informed consent when the subject is legally too young to provide informed consent and the subject has provided written assent based on local regulations and/or guidelines prior to any study-specific activities/procedures being initiated. 2. Age greater than or equal to 1 month to less than 21 years. Subjects greater than or equal to 18 years must have had their original diagnosis at less than 18 years of age. 3. Subjects must be diagnosed with relapsed or refractory relapsed ALL. 4. Subjects must have a documented first remission, less than or equal to 5% blasts in the bone marrow (M1 bone marrow) and no evidence of extramedullary disease. 5. T-cell ALL with bone marrow relapse (defined as greater than or equal to 5% leukemia blasts in bone marrow) or refractory relapse with or without extramedullary disease. OR B-cell ALL bone marrow relapse or refractory relapse (defined as greater than or equal to 5% leukemia blasts in bone marrow) after having received a targeted B-cell immune therapy (eg, blinatumomab, inotuzumab or a CAR-T therapy) with or without extramedullary disease.. 6. Adequate liver function: bilirubin less than or equal to 1.5 x upper limit of normal (ULN), alanine aminotransferase (ALT) less than or equal to 5 x ULN. 7. Adequate renal function: serum creatinine less than or equal to 1.5 x ULN or glomerular filtration rate (GFR) greater than or equal to 70 mL/min/1.73 m^2; or for children less than 2 years of age, greater than or equal to 50 mL/min/1.73 m^2. 8. Adequate cardiac function: shortening fraction greater than or equal to 30% or ejection fraction greater than or equal to 50%. 9. Karnofsky (subjects greater than or equal to 16 years of age) or Lansky (subjects 12 months to less than 16 years of age) performance status greater than or equal to 50%. 10. Subjects must have fully recovered from the acute toxic effects of all previous chemotherapy, immunotherapy, or radiotherapy treatment before enrollment (for example: recovery from gastrointestinal toxicity may occur more rapidly than less reversible organ toxicities such as sinusoidal obstruction syndrome or non-infectious pneumonitis, for serious prior toxicities recommended discussion with Amgen medical monitor). 11. Life expectancy of greater than 6 weeks per investigator's judgement at time of screening. Phase 1b Key 1. Known allergy to any of the drugs used in the study (Subjects who have had a previous allergy to PEG-asparaginase and if able, may receive Erwinia asparaginase at the investigator's discretion) 2. Known allergy to Captisol (a cyclodextrin derivative used to solubilize carfilzomib) 3. Left ventricular fractional shortening < 30% 4. History of ≥ Grade 2 pancreatitis 5. Active graft-versus-host disease requiring systemic treatment 6. Positive culture for or other clinical evidence of infection with bacteria or fungus within 14 days of the initiation of study treatment 7. Down Syndrome 8. Prior therapy restrictions:
• Subjects must have completed therapy with granulocyte-colony stimulating factor (G-CSF) or other myeloid growth factors at least 7 days before study treatment initiation, or at least 14 days before study treatment initiation, if pegylated myeloid growth factors were administered.
• Subjects must have completed any type of active immunotherapy (e.g., tumor vaccines) at least 42 days before study treatment initiation.
• Subjects must have received the last dose of a non-monoclonal antibody biologic agent at least 7 days before study treatment initiation.
• At least 3 antibody half-lives must have elapsed since the last dose of monoclonal antibody (e.g., 66 days for rituximab and 69 days for epratuzumab) before subjects may initiate study treatment.
• Subjects must not have received other antineoplastic agents with therapeutic intent, excluding hydroxyurea and antimetabolites administered as part of maintenance chemotherapy, within 7 days prior to study treatment initiation. 9. Hepatitis B infection with positive hepatitis B DNA Phase 2 1. Prior treatment with carfilzomib. 2. Prior treatment with a proteasome inhibitor (other than carfilzomib) within less than 3 months of enrollment or to which a subject did not respond (response is defined as bone marrow with less than 5% blasts). 3. Treatment with a chemotherapy regimen including a vinca alkaloid, steroid, L-asparaginase, and anthracycline combination with or without other chemotherapy agents within 2 months of enrollment (eg VXLD, VPLD, R3). 4. Intolerance, hypersensitivity, or inability to receive any of the chemotherapy components of the VXLD regimen. An exception is allowed for allergy to asparaginase products if Erwinia asparaginase is unable to be administered, 5. Autologous HSCT within 6 weeks prior to start of study treatment. 6. Allogeneic HSCT within 3 months prior to start of study treatment. 7. Active GVHD requiring systemic immune suppression. 8. Less than 30 days from discontinuation of immune suppressive therapy administered for the treatment of acute or chronic GVHD. 9. Isolated extramedullary relapse. 10. Positive bacterial or fungal infection within 14 days of enrollment (except for documented line infection, line has been removed, and blood culture after line removal is negative for 5 days prior to first dose of induction therapy). Antibiotics may be administered for prophylaxis as per institutional standards up to and after enrollment. 11. Subjects with less than 3 antibody half-lives since the last dose of monoclonal antibody (eg, 66 days for rituximab, 69 days for epratuzumab, inotuzumab for 36 days), prior to first dose of investigational product must be discussed with the Amgen medical monitor and may be allowed to enroll based on extent of disease or evidence of rapidly rising peripheral or bone marrow blast counts. 12. Cell-based immunotherapy (eg, donor leucocyte infusion, CAR-T cells, tumor vaccines) within 42 days prior to first dose of investigational product. If the Amgen medical monitor agrees, an exception may be granted to the 42-day requirement for subjects with rapidly rising peripheral or bone marrow blast counts. 13. Down's syndrome. 14. Presence of another active cancer. 15. History of grade greater than or equal to 2 pancreatitis within 6 months to screening. 16. Unresolved toxicities from prior anticancer therapy, defined as not having resolved to CTCAE version 4.03 grade 1 or to levels dictated in the eligibility criteria apart from alopecia or toxicities from prior anticancer therapy that are considered irreversible and do not trigger another exclusion criterion (defined as having been present and stable for greater than 4 weeks). 17. Antitumor therapy (chemotherapy, investigational agents, molecular-targeted therapy) within 7 days of day 1 of induction. Exception: hydroxyurea to control peripheral blood leukemic cell counts is allowed until start of investigational product. 18. Active viral infection, including but not limited to cytomegalovirus (CMV), Hepatitis B infection with positive serum hepatitis surface antigen or hepatitis B DNA, HIV, Hepatitis C with detectable hepatitis C RNA. Subjects who have previously received a stem cell transplant must be screened for CMV infection, unless both subject and donor are known to be CMV negative. 19. Currently receiving treatment in another investigational device or product study, or less than 14 days since ending treatment on another investigational device or product study. 20. Uncontrolled arrhythmias or screening ECG with corrected QT interval (QTc) of greater than 470 msec. 21. History or evidence of any other clinically significant disorder, condition or disease (with the exception of those outlined above) that, in the opinion of the investigator or Amgen physician, if consulted, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion. 22. Female subject is pregnant or breastfeeding or planning to become pregnant or breastfeed during treatment and for an additional 6 months after the last dose of any study treatment or for 12 months after last dose of cyclophosphamide if administered during optional consolidation cycle. 23. Female subjects of childbearing potential unwilling to use 1 highly effective method of contraception during treatment and for an additional 6 months after the last dose of any study treatment or for 12 months after last dose of cyclophosphamide if administered during optional consolidation cycle. 24. Female subjects of childbearing potential with a positive pregnancy test assessed at Screening by a serum or urine pregnancy test. 25. Male subjects with a female partner of childbearing potential who are unwilling to practice sexual abstinence (refrain from heterosexual intercourse) or use a condom with spermicide during treatment and for an additional 6 months after the last dose of any study treatment, even if they have undergone a successful vasectomy. 26. Male subjects with a pregnant partner who are unwilling to practice abstinence or use a condom with spermicide during treatment, for duration of pregnancy, and for an additional 6 months after the last dose of any study treatment. 27. Male subjects unwilling to abstain from donating semen or sperm during treatment and for an additional 6 months after the last dose of any study treatment. 28. Known allergy to captisol (a cyclodextrin derivative used to solubilize carfilzomib; for a complete listing of Captisol-enabled drugs, see the Ligand Pharmaceuticals, Inc. website).

• Willing to be registered into the pomalidomide (POMALYST®) Risk Evaluation and Mitigation Strategy (REMS®) program
• Enrolled in the MMRF002 Molecular Profiling Protocol (NCT02884102) with report less than 120 days old
• Disease free of prior malignancies for ≥ 3 years with exception of currently treated basal cell, squamous cell carcinoma of the skin, carcinoma "in situ" of the cervix or breast, or prostate cancer not requiring therapy
• High risk patients with relapsed refractory multiple myeloma (RRMM), who have:
• received at least one prior but no more than 3 prior therapies
• exposed to both a PI and an IMiD
• had early relapse after initial treatment Early relapse as defined by at least one of the following: (Relapse is defined as the IMWG uniform response) 1. Relapse within 3 years of initiation of induction chemo therapy for post autologous stem cell transplantation (ASCT) followed by maintenance, or 18 months if unmaintained after ASCT 2. Within 18 months of initial non-ASCT based therapy
• Patients must have progressed after their most recent treatment and require therapy for myeloma
• Females of reproductive potential must have a negative pregnancy test at baseline, be non-lactating, and willing to adhere to scheduled pregnancy testing
• Females of reproductive potential and males must practice and acceptable method of birth control
• Laboratory values obtained ≤ 14 days prior to registration:
• Absolute neutrophil count (ANC) ≥ 1000/ul
• Hemoglobin (Hgb) ≥ 8 g/dl
• Platelet (PLT) ≥ 75,000/ul
• Total bilirubin <1.5 x upper limit of normal (ULN) or if total bilirubin is >1.5 x ULN, the direct bilirubin must be ≤ 2.0 mg/dL
• Aspartate aminotransferase (AST) <3 x ULN
• Creatinine Clearance ≥ 30 mL/min Measurable disease of Multiple Myeloma (MM) as defined by at least one of the following:
• Serum monoclonal protein ≥ 0.5 g by protein electrophoresis
• ≥200 mg of monoclonal protein in the urine on 24-hour electrophoresis
• Serum immunoglobulin free light chain (FLC) ≥10 mg/dL AND abnormal serum immunoglobulin kappa to lambda FLC ratio
• Monoclonal bone marrow plasmacytosis ≥30% (evaluable disease)
• Eastern Cooperative Oncology Group (ECOG) Performance Status 0, 1, or 2
• Ability to take aspirin, warfarin, or low molecular weight heparin Sub-Protocol Refer to each respective Sub Protocol for additional inclusion criteria. Patients will be ineligible for this study if they meet any one of the following criteria:
• Aggressive multiple myeloma requiring immediate treatment as defined by:
• Lactate dehydrogenase (LDH) > 2 times ULN
• Presence of symptomatic extramedullary disease or central nervous system involvement
• Hypercalcemia >11.5 mg/dl
• Acute worsening of renal function (CrCl < 30 ml/min) directly related to myeloma relapse
• Any neurological emergency related to myeloma
• Clinical symptoms of hyperviscosity related to monoclonal protein
• Involved serum free light chain > 100 mg/dL (1000 mg/L) in the setting of prior diagnosis of cast nephropathy
• Infection requiring systemic antibiotic therapy or other serious infection within 14 days of enrolment
• Known hypersensitivity or development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide, pomalidomide or similar drug. Known allergy to any of the study medications, their analogues, or excipients in the various formulations of the agents
• Prior Ixazomib/Pomalidomide/Dexamethasone combination therapy
• Pregnant or breast-feeding females
• Serious medical or psychiatric illness, active alcoholism, or drug addiction that may hinder or confuse compliance, interfere in the completion of treatment per protocol, or follow-up evaluation
• Active hepatitis A, B or C viral infection or known human immunodeficiency virus (HIV) infection
• Concurrent symptomatic amyloidosis or plasma cell leukemia
• POEMS syndrome [plasma cell dyscrasia with polyneuropathy, organomegaly, endocrinopathy, monoclonal protein (M-protein) and skin changes]
• Residual side effects to previous therapy > Grade 1 prior to initiation of therapy (Alopecia any grade and/or neuropathy Grade 2 without pain are permitted)
• Prior allogeneic or ASCT within 12 weeks of initiation of therapy. Prior allogeneic stem cell transplant with active graft-versus-host disease (GVHD)
• Prior experimental therapy within 14 days of protocol treatment or 5 half-lives of the investigational drug, whichever is longer
• Prior anticancer therapy within 14 days of initiation of protocol therapy (Dexamethasone/ 40mg/day) for a maximum of 4 days before screening is allowed
• Prior major surgical procedure or radiation therapy within 4 weeks of the initiation of therapy (this does not include limited course of radiation used for management of bone pain within 7 days of initiation of therapy).
• Known to have dysphagia, short-gut syndrome, gastroparesis, or other conditions that limit the ingestion or Gastro Intestinal (GI) absorption of drugs administered orally
• Evidence of current uncontrolled cardiovascular conditions, including uncontrolled hypertension, uncontrolled cardiac arrhythmias, symptomatic congestive heart failure, unstable angina, or myocardial infarction within the past 6 months
• Other co-morbidity, which would interfere with patient's ability to participate in trial or that confounds the ability to interpret data from the study Sub-Protocol Refer to each respective Sub Protocol for additional exclusion criteria.

Stage A:
• Age ≥ 4 years.
• Patients who require or are expected to require a transfusion of RBC component(s), including red cell exchange transfusion
• Signed and dated informed consent form.
• Female patients of child-bearing potential must:
• Have negative serum or urine pregnancy tests prior to study treatment to rule out pregnancy, and
• Agree to use to use at least one method of birth control that results in a low failure rate (i.e., less than 1% per year) when used consistently and correctly such as implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), sexual abstinence or vasectomized partner for the duration of study participation and an additional 28 days. For 28-day +6-month extension study in chronically transfused patients: • A diagnosis of a bone marrow failure syndrome requiring repeated RBC transfusion for congenital or acquired chronic anemia (e.g., sickle cell anemia, thalassemia, other hemoglobinopathies, myelodysplastic syndrome, aplastic anemia, chemotherapy or stem cell transplant etc.) For 28-day +6-month extension study in SCD patients requiring regular repeated RCE.
• Diagnosis of SCD, either HbSS, HbSC or HbSB0 thalassemia, confirmed by Hb electrophoresis, deoxyribonucleic acid (DNA) analysis or high-performance liquid chromatography (HPLC)
• Currently participating in an automated RCE transfusion program (for at least 3 months prior to enrollment) with 3-to-8 week intervals between RCE transfusion episodes Stage A: Exclusion Criteria
• Confirmed positive baseline serum/plasma antibody specific to IBS RBC (S 303 treated RBC) as determined by INTERCEPT S 303 antibody screening panel prior to receiving the first study transfusion
• Pregnant or breast feeding.
• Presence of an RBC warm autoantibody with evidence of active hemolysis.
• Positive DAT as defined below:
• A polyspecific-DAT reaction strength > 2+, or
• A polyspecific-DAT (any strength) in conjunction with pan-reactivity with a commercial IAT antibody screening panel that precludes the identification of underlying alloantibodies or indicates the presence of autoantibody.
• Have had an RBC transfusion within 7 days prior to randomization.
• Have received investigational products, including investigational blood products, pharmacologic agents or imaging materials, within 28 days prior to randomization. Prior receipt of conventional blood products tested with an investigational NAT test is not considered ground for exclusion.
• Patients presenting with or expected to have massive hemorrhage (≥10 RBC units within 24 hours) or expected to require massive transfusion protocols. Planned red cell exchange does not apply.
• Patients who require neonatal transfusions and intrauterine transfusions.
• Pre-existing antibody to RBC antigens that may make the provision of compatible study RBC components difficult.
• History of transfusion reactions requiring washed RBCs, volume reduced RBC, or RBCs with additive solution removed.
• Patients with documented IgA deficiency or a history of severe allergic reactions to blood products.
• For SCD patients to be enrolled into the repeated RCE 28-day +6-month arm of the study:
• A history of acute chest syndrome in the last 6 months, or hyperhemolysis syndrome at any time.
• Clinical evidence of splenic hyperfunction or splenic enlargement: ≥18 cm in longitudinal diameter (diagnosed at the Investigator's discretion according to the data available, with ultrasound data being preferable).
• Currently receiving chemotherapy for treatment of cancer. Hydroxyurea for SCD is acceptable if subject has been on stable therapy for 3 months and no changes to dosage are planned.
• Subject is in active treatment with renal dialysis.
• Any subject for whom a substantial change in the number of RBC components transfused is anticipated due to anticipated splenectomy, bone marrow transplant, surgery or other change in clinical status.
• Subject with known G6PD deficiency or requiring treatment with medications that are known to adversely affect RBC viability or bone marrow function.

• All adult (18 years or older);
• SCD patients with the following genotypes: Hgb SS, SC, and SB+ and SB- thalassemia
• determined to not benefit from opioids and therefore won't receive opioids in any future ED visit.

• Signed informed consent given by the subject or the subject's parent/legal guardian for those under 18 years of age or the age of consent by local regulation.
• Male and female subjects with a suspected or confirmed UCD diagnosis of any subtype, except NAGS deficiency.
• Suspected diagnosis is defined as having experienced a HAC or a documented high ammonia of >=100 µmol/L
• Confirmed diagnosis is determined via enzymatic, biochemical, or genetic testing.
• Requires nitrogen-binding agents according to the judgment of the Investigator
• Birth and older.
• All females of childbearing potential and all sexually active males must agree to use an acceptable method of contraception from signing the informed consent throughout the study and for 30 days after the last dose of study drug. Acceptable forms of contraception are (oral, injected, implanted or transdermal), tubal ligation, intrauterine device, hysterectomy, vasectomy, or double barrier methods. Abstinence is an acceptable form of birth control, though appropriate contraception must be used if the subject becomes sexually active.
• Subject has received chronic treatment with an oral phenylbutyrate (RAVICTI, NaPBA, Pheburane, or other) longer than 14 consecutive days within one year prior to enrollment.
• Temporary use of NaPBA for acute management of a hyperammonemic crisis in the past is acceptable.
• Any concomitant illness (e.g., malabsorption or clinically significant liver or bowel disease) which would preclude the subject's safe participation, as judged by the Investigator.
• Has undergone liver transplantation, including hepatocellular transplant.
• Subjects on NaBz at Baseline will be excluded if they are viewed by the Investigator as being unable to undergo NaBz transition to a PAA prodrug during the Initial Treatment Period.
• Known hypersensitivity to PBA or any excipients of the NaPBA/PBA formulations.
• Pregnant or breast-feeding patients. Women of childbearing potential must have a pregnancy test performed at the Baseline Visit prior to the start of study drug.

Inclusion Criteria : 1. Patient is undergoing investigation of recent confirmed hematuria (by either flexible or rigid cystoscopy/TURBT), including hematuria subjects referred due to suspicious/positive imaging, in order to determine the presence of urothelial carcinoma. 2. Able to provide a voided urine sample of the required minimum volume 3. Able to give written consent 4. Able and willing to comply with study requirements 5. Aged 18 years or older Exclusion Criteria 1. Prior history of bladder malignancy, prostate or renal cell carcinoma 2. Prior genitourinary manipulation (flexible or rigid cystoscopy / catheterisation, urethral dilation) in the 14 days before urine collection, 3. History of glomerulonephritis, nephrosis or other renal inflammatory disorders, recent history of pyelonephritis 4. Previous alkylating based chemotherapy 5. Pregnancy

1. 18 years of age or greater. 2. Willing and able to provide informed consent 3. Patient has received at least 3 prior lines of therapy and must have received prior therapy including at least one drug from each drug class; IMiD, proteasome inhibitors, and anti-CD38 monoclonal antibody. 4. The following laboratory values obtained ≤ 14 days prior to initiation of therapy: 1. ANC ≥ 1000/ul (without growth factor support within 14 days of initiation of therapy) 2. Hgb ≥ 8 g/dl 3. PLT ≥ 75,000/ul (without transfusion support within 14 days of initiation of therapy) 4. Total bilirubin <1.5 x upper limit of normal (ULN) or if total bilirubin is ≥1.5 x ULN, the direct bilirubin must be ≤ 2.0 mg/dL (patients with Gilberts syndrome may have total bilirubin ≤3.0 x ULN 5. AST and ALT < 2.5x ULN 6. Creatinine Clearance ≥ 30 mL/min by Cockcroft Gault Equation 5. Measurable disease of MM as defined by at least ONE of the following: 1. Serum monoclonal protein ≥1.0 g by protein electrophoresis 2. ≥200 mg of monoclonal protein in the urine on 24-hour electrophoresis 3. Serum immunoglobulin FLC ≥10 mg/dL AND abnormal serum immunoglobulin kappa to lambda FLC ratio. 6. Normal thyroid function, or stable on hormone supplementation per investigator assessment. 7. Eastern Cooperative Oncology Group (ECOG) Performance Status 0, 1, or 2. 8. Willingness to return to enrolling institution for follow-up. 9. Disease free of prior malignancies for ≥ 3 year with exception of currently treated basal cell, squamous cell carcinoma of the skin, carcinoma "insitu" of the cervix or breast, or prostate cancer not requiring therapy 10. Ability to understand the purpose and risks of the study and provide signed and dated ICF and authorization to use protected health information. 11. All study participants must be willing to be registered into, and comply with, the mandatory pomalidomide (POMALYST®) Risk Evaluation and Mitigation Strategy (REMS®) program and be willing to use contraception 28 days prior to pomalidomide treatment and continue until 120 days after the last dose of pomalidomide. 12. Able to take aspirin (81 or 325 mg) daily as prophylactic anticoagulation. For patient's intolerant to aspirin or for high-risk patients with prior history of thromboembolic events, thromboprophylaxis with other anti-coagulants agents, including low molecular weight heparin, warfarin, or novel oral anticoagulants such as apixaban or rivaroxaban, is allowed. 13. All females of child bearing potential (FCBP)* must have a negative pregnancy test (urine or serum) documented ≤7 days prior to start of therapy with repeat pregnancy test on Day 1 of each cycle and at the EoT visit. Note: Additional pregnancy testing is required as a condition of the POMALYST REMS® program prior to and while on treatment and following the last dose of pomalidomide. FCBP must have 2 negative pregnancy tests prior to initiating pomalidomide treatment. The first test should be performed within 10-14 days prior to prescribing POMALYST and the second test within 24 hours prior to prescribing POMALYST therapy and then weekly during the first 4 weeks, then every 4 weeks thereafter in females with regular menstrual cycles, or every 2 weeks in females with irregular menstrual cycles. Protocol section 8.1 provides guidelines on the use and required time frames of contraception. NOTE: *A female of childbearing potential (FCBP) is a sexually mature female who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months). 1. Patient is known to be human immunodeficiency virus (HIV) positive, Hepatitis B surface antigen-positive, Hep B PCR positive or active Hepatitis C infection 2. Pregnant or breast feeding females; 3. Any clinically significant, uncontrolled medical conditions including, but not limited to, myocardial infarction or stroke/transient ischemic attack within the past 6 months, uncontrolled angina within the past 3 months, symptomatic congestive heart failure, cardiac arrhythmia (such as ventricular tachycardia, ventricular fibrillation, or torsades de pointes), pericarditis, myocarditis, cardiomyopathy, requirement for supplemental oxygen; 4. Any psychiatric illness/social situations that, in the Investigator's opinion, would impose excessive risk to the patient or may interfere with compliance or interpretation of the study results; 5. QT interval corrected for heart rate using Fridericia's formula (QTcF) prolongation > 480 msec, except for right bundle branch block; 6. Ongoing or active infection, that requires systemic antibacterial, antiviral, or antifungal therapy < 7 days prior to the initiation of therapy 7. Inability to tolerate thromboprophylaxis ; 8. Known CNS involvement; 9. Known severe intolerance to steroid therapy (Grade 3 or above adverse event unresponsive to dose reduction and/or per investigators discretion); 10. History of autoimmune disease, requiring therapy including but not limited to systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis associated with antiphospholipid syndrome, Wegener's granulomatosis, Sjögren's syndrome, Bell's palsy, Guillain-Barré syndrome, multiple sclerosis, vasculitis, glomerulonephritis, 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, euthyroid with a history of Grave's disease (participants with suspected autoimmune thyroid disorders must be negative for thyroglobulin and thyroid peroxidase antibodies and thyroid stimulating Ig prior to the first dose of study drug), psoriasis not requiring systemic treatment, well controlled asthma and/or mild allergic rhinitis [seasonal allergies], or conditions not expected to recur in the absence of an external trigger); 11. NYHA Classification > Class 2; 12. Concurrent amyloidosis, plasma cell leukemia or POEMS syndrome [plasma cell dyscrasia with polyneuropathy, organomegaly, endocrinopathy, monoclonal protein (M-protein) and skin changes; 13. History of erythema multiforme or severe (≥ grade 3) hypersensitivity to prior IMiD's; 14. 14. Anti-cancer therapy within the specified time frames prior to initiation of therapy: cytotoxic investigational agents, within 3 weeks (6 weeks for nitrosoureas), IMiDs, Proteosome inhibitors or corticosteroids within 2 weeks, investigational therapies within 14 days or 5 half-lives of the investigational drug, whichever is longer, and monoclonal antibodies within 4 weeks, bispecifics (antibodies) within 4 weeks, CAR-T within 4 weeks post infusion. Prednisone up to but no more than 10 mg orally q.d. or its equivalent for symptom management of comorbid conditions is permitted but dose should be stable for at least 7 days. Live vaccines within 30 days (The inactivated seasonal influenza vaccine can be given to patients before treatment and while on therapy without restriction). Shorter time lines may be considered in consultation with the PI; 15. Prior major surgery or radiation therapy within 4 weeks of initiation of therapy; 16. Prior therapy with Anti-TIGIT or Anti-LAG-3 ; Elotuzumab 17. Any > Grade 1 adverse reaction unresolved from previous treatments according to the NCI CTC AE v 5.0. The presence of alopecia or peripheral neuropathy ≤ Grade 2 without pain is allowed; 18. Previous allogeneic stem cell transplantation; 19. Immunosuppressive therapy in the last 2 months prior to initiation of therapy; 20. Autologous stem cell transplant if < 12 weeks from initiation of therapy; 21. History of idiopathic pulmonary fibrosis, organizing pneumonia (i.e., bronchiolitis obliterans, cryptogenic organizing pneumonia, etc.); 22. Cardiac Troponin T (cTnT) or I(cTnI)≥2×institutional ULN. 1. Subjects with cTnT or cTnI levels between > 1 to 2 × ULN will be permitted if repeat levels within 24 hours are ≤ 1 ULN 2. If cTnT or cTnI levels are >1 ULN at 24 hours, the subject may undergo a cardiac evaluation and be considered for treatment, following a discussion with the Principal Investigator.

KEY INCLUSION CRITERIA: Diagnosis of the following: Regimen A (FT516 monotherapy):
• Primary Refractory AML
• Relapsed AML defined as not in CR after 1 or more re-induction attempts; if >60 years of age, prior re-induction therapy is not required Regimen B (FT516 + rituximab or obinutuzumab):
• Histologically documented B-cell lymphoma expected to express CD20 who have relapsed after or failed to respond to at least on prior treatment regimen and for whom there is no available therapy expected to improve survival. All subjects:
• Provision of signed and dated informed consent form (ICF)
• Age ≥18 years old
• Stated willingness to comply with study procedures and duration
• Presence of measurable disease KEY EXCLUSION CRITERIA: All subjects:
• Females of reproductive potential who are pregnant or lactating, and males or females not willing to use a highly effective form of contraception from Screening through the end of the study
• Eastern Cooperative Oncology Group (ECOG) Performance Status ≥2
• Evidence of insufficient organ function
• Receipt of therapy within 2 weeks prior to Cycle 1 Day 1 or within five half-lives, whichever is shorter; or any investigational therapy within 28 days prior to Cycle 1 Day 1
• Currently receiving or likely to require systemic immunosuppressive therapy
• Prior allogeneic HSCT or allogeneic CAR-T within 6 months of Cycle 1 Day 1, or ongoing requirement for systemic graft-versus-host therapy
• Receipt of an allograft organ transplant
• Known active central nervous system (CNS) involvement by malignancy.
• Clinically significant cardiovascular disease
• Clinically significant infections including: Known HIV infection; Known active Hepatitis B (HBV) or Hepatitis C (HCV) infection
• Live vaccine <6 weeks prior to start of lympho-conditioning
• Known allergy to human albumin and DMSO Additional Exclusion Criteria for FT516 monotherapy Regimen: Diagnosis of promyelocytic leukemia with t(15:17) translocation Additional Exclusion Criteria for FT516 plus monoclonal antibody Regimens: Diagnosis of Waldenstrom macroglobulinemia

• Oncology patients
• Admitted to 11Blue Bone Marrow Transplant Unit at Clements University Hospital University of Texas Southwestern Medical Center
• Ages 18-80 years
• Pre-existing or newly placed PICC line
• PICC line with good blood return (defined as: "brisk blood return of 3cc")
• Flushes without difficulty
• Patient less than 18 years of age or greater than 80 years of age
• Refused or unable to give consent to the study
• Patient admitted to the 11Blue BMT unit with any line other than a PICC line, or multiple lines
• Patient admitted to 11Blue BMT for active transplant
• Patient with a coagulopathy diagnosis
• Patient on therapeutic dose of anticoagulants for documented Deep Vein Thrombosis or Pulmonary Embolism
• Patient on inpatient hospice/comfort care
• Patient transferred off 11B BMT unit onto another floor

Inclusion Criteria Age -Patients must be ≥ 1 and ≤ 21 years of age at the time of enrollment. Diagnosis
• Cohort A: Patients must have a diagnosis of acute lymphoblastic leukemia (ALL) or mixed phenotypic acute leukemia with ≥ 5% blasts in the bone marrow (M2 or M3), with or without extramedullary disease) or a diagnosis of lymphoblastic lymphoma.
• Cohorts B & C: Patients must have a diagnosis of acute lymphoblastic leukemia (ALL), lymphoblastic lymphoma, or mixed phenotypic acute leukemia with any level of detectable disease (minimal residual disease level acceptable) with or without extramedullary disease Performance Level -Karnofsky > 50% for patients > 16 years of age and Lansky > 50% for patients ≤ 16 years of age. Prior Therapy
• Patients must have recovered from the acute toxic effects (≤ Grade 2 or baseline) of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study, unless otherwise specified. Subjects with disease related cytopenias will be eligible.
• Patients must have relapsed or refractory disease after attaining at least a first remission. They may be in first to third relapse..
• Patients with Philadelphia chromosome t(9;22) positive disease must have received at least two prior tyrosine kinase inhibitors.
• Patients who have experienced their relapse after a Hematopoietic stem cell transplantation (HSCT) are eligible, provided they have no evidence of graft-versus-host disease (GVHD) and are at least 100 days post-transplant at the time of enrollment.
• Prior anthracycline lifetime cumulative exposure: Patients must have less than 320 mg/m2 (or 400 mg/m2 if prior cardioprotection) lifetime exposure of anthracycline chemotherapy. 1. Cohort A: Patients must have less than 320 mg/m2 (or 400 mg/m2 if prior cardioprotection) lifetime exposure of anthracycline chemotherapy (See Appendix 2 for anthracycline calculation worksheet). 2. Cohorts B & C: There is no limit on prior anthracycline exposure.
• Hematopoietic growth factors: It must have been at least seven days since the completion of therapy with granulocyte colony-stimulating factor (GCSF) or other growth factors at the time of enrollment. It must have been at least 14 days since the completion of therapy with pegfilgrastim (Neulasta®).
• Biologic anti-neoplastic agents: At least seven days after the last dose of a biologic agent. For agents that have known adverse events occurring beyond seven 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 or vice chair.
• Monoclonal antibodies: At least three half-lives (or 30 days—whichever is longer) of the antibody must have elapsed after the last dose of monoclonal antibody. (e.g., Rituximab = 66 days, Epratuzumab = 69 days)
• Immunotherapy: At least 30 days after the completion of any type of immunotherapy, e.g. tumor vaccines, chimeric antigen receptor T-cells.
• Recent prior chemotherapy: At least 10 days after standard vincristine and the completion of any type of chemotherapy induction regimen. At least 3 weeks after radiation therapy. At least 30 days after the completion of any investigational neoplastic agent is also required. An investigational agent is defined as any drug that is not approved and licensed for sale by the FDA for institutions in the United States, by Health Canada for institutions in Canada and by The Therapeutic Goods Administration for institutions in Australia. Exceptions:
• There is no time restriction in regard to prior intrathecal chemotherapy provided there is complete recovery from any acute toxic effects of such; it is allowable to enroll a patient that has received IT Cytarabine (ARA-C), IT Methotrexate (MTX) or triple IT therapy within 14 days of enrollment as part of their evaluation to diagnose disease relapse. The IT therapy given within 14 days of initiation of protocol specified chemotherapy, may substitute for the day 1 IT in cohorts A and B
• Subjects with rapidly progressive disease may receive hydroxyurea until they begin study therapy;
• Patients who relapse while on maintenance-type ALL therapy or are receiving maintenance therapy for disease stabilization will not require a wash-out period before entry into this study. However, there must be at least 10 days after any dose of standard vincristine. Renal and Hepatic Function
• Renal function: Patient's serum creatinine must be ≤ 1.5 x institutional upper limit of normal (ULN) according to age. If the serum creatinine is greater than 1.5 times normal, the patient must have a calculated creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70milliliter/min/1.73m2. Alternatively, a 24-hour creatinine clearance may also be used.
• Hepatic function: alanine aminotransferase (ALT) and aspartate aminotransferase (AST) must be < 5 x institutional upper limit of norm ULN. Total bilirubin must be ≤ 1.5 x ULN (except in the case of subjects with documented Gilbert's disease ≤ 5 × ULN). Cardiac Function -Patients must have a shortening fraction ≥ 27% or an ejection fraction ≥ 55% by echocardiogram, cardiac MRI or multigated acquisition scan (MUGA). Reproductive Function
• Female patients must not be pregnant and those of childbearing potential must have a negative urine or serum pregnancy test confirmed within one week prior to enrollment.
• Female patients with infants must agree not to breastfeed their infants while on this study.
• Male and female patients of childbearing potential must agree to use an effective method of contraception during the study. Exclusion Criteria Patients will be excluded if they have isolated testicular disease. Patients will be excluded if they have previously received Marqibo®. Patients will be excluded if they have a known allergy to any of the drugs used in the study, with the exception that patients with an allergy to PEG-asparaginase who can receive Erwinia asparaginase are eligible. Patients unable to receive any formulation of asparaginase may only enroll on cohort C Patients will be excluded if they have active, uncontrolled systemic fungal, bacterial, viral or other infection despite appropriate antibiotics or other treatment. Patients who require azole antifungal agents will be excluded. Azoles must be discontinued at least one week prior to the start of Marqibo®. Patients will be excluded if there is a plan to administer non-protocol chemotherapy, radiation therapy, another investigational agent or immunotherapy during the study period. Patients with pre-existing, persistent grade 2 or greater sensory or motor neuropathy from any cause will be excluded. Patients will be excluded if they have, significant concurrent disease, illness, psychiatric disorder or social issue that would compromise patient safety or adherence with the protocol treatment or procedures or interfere with consent, study participation, follow up, or interpretation of study results.Patients with Down syndrome will not be eligible for enrollment on Cohort A Patients with a known history of human immunodeficiency virus (HIV) will will be excluded due to the increased risk of complications such as severe infection and unknown interaction of Marqibo® with antiretroviral drugs. Active hepatitis B or C infection as defined by seropositive for hepatitis B (hepatitis B surface antigen (HBsAg)) or hepatitis C and elevated liver transaminases (defined as above the ULN per the institution normal ranges).

• Eligible for study when participant is 1 year to 21 years at the time of diagnosis
• Eligible Ages in Australia and Canada; 2 years to 21 years
• De novo high-risk (HR) Ph-like B-ALL for which any of following criteria are present at diagnosis:
• Age ≥ 10 years
• White blood cell (WBC) ≥ 50 × 10^3/μL
• CNS3 leukemia at diagnosis
• Systemic steroid pretreatment without presteroid WBC documentation
• Diagnostic bone marrow or peripheral blood sample must have gene expression profiling and downstream genetic testing performed by submitting diagnostic specimens under the COG AALL08B1 or APEC14B1 biology studies, or AALL1131 or its successor study. Specimens must demonstrate a Ph-like expression profile (ie, LDA-positive) as tested by low density microarray testing at the COG ALL reference laboratory or TriCore laboratory at the University of New Mexico AND must contain 1 of the following genetic lesions: (determined at COG ALL reference laboratories, or equivalent CAP/CLIA-certified laboratories approved by the medical monitor: 1. CRLF2 rearrangement* with confirmed JAK1 or JAK2 mutation (JAK+) 2. CRLF2 rearrangement* without JAK mutation 3. Other JAK pathway alterations (eg, JAK2 fusions, EPOR fusions, SH2B3 deletions, IL7RA mutations) with or without CRLF2-R, or CRLF2-R with unknown JAK status*† as determined by a COG ALL Reference Laboratory
• Completed a 4-drug Induction therapy regimen (modified aBFM regimen or equivalent) in Study AALL1131 or its successor study, or as per the institutional standard of care for HR B-ALL and have had end-Induction minimal residual disease (MRD) assessed
• Male and female subjects of reproductive non childbearing potential or willing to take appropriate precautions to avoid pregnancy or fathering a child for the duration of study participation
• Receipt of any other cytotoxic chemotherapy before Induction therapy, with exception of hydroxyurea or steroid pretreatment
• Trisomy 21 (Down syndrome)
• BCR-ABL1-rearranged (Ph+) ALL
• Calculated creatinine clearance or radioisotope glomerular filtration rate < 70 mL/min/1.73 m^2
• Alanine aminotransferase ≥ 5 × upper limit of normal (ULN) for age
• Direct bilirubin ≥ 1.5 × ULN (may be assumed if total bilirubin is below ULN)
• History or evidence of cirrhosis
• Platelet count < 75 × 10^3/μL
• Absolute neutrophil count (ANC) < 750/μL
• Positive screen for hepatitis B or C
• Known human immunodeficiency virus infection

• Histologically confirmed pediatric mature B-cell non-Hodgkin lymphoma (B-cell NHL) including the following subtypes; Burkitt lymphoma/ Burkitt leukemia (BL), diffuse large B-cell lymphoma (DLBCL), primary mediastinal B-cell lymphoma (PMBCL), gray zone lymphoma (GZL), and follicular lymphoma (FL) Note: Patients with B-cell NHL associated with Nijmegen breakage syndrome will be allowed.
• Patients <25 years of age and weighing at least 6 kg at the time of screening
• Patients who have relapsed after one or more prior therapies (can include allogeneic and autologous hematopoietic stem cell transplant) or are primary refractory (have not achieved a CR or PR after the first line of therapy)
• Measurable disease by radiological criteria in all patients at the time of screening. Patients with Burkitt leukemia who don't meet radiological criteria must have bone marrow involvement of >25% by local assessment of bone marrow aspirate and/or biopsy.
• Karnofsky (age ≥16 years) or Lansky (age <16 years) performance status ≥60.
• Adequate bone marrow reserve without transfusions (transfusion >2 weeks prior to laboratory assessment is allowed) defined as: 1. Absolute neutrophil count (ANC) >1000/mm3 2. Platelets ≥50000//mm3 3. Hemoglobin ≥8.0 g/dl
• Adequate organ function defined as: 1. a serum creatinine (sCR) based on gender/age as follows: Maximum Serum Creatinine (mg/dL) Age Male Female 1 to <2 years 0.6 0.6 2 to <6 years 0.8 0.8 6 to <10 years 1.0 1.0 10 to <13 years 1.2 1.2 13 to <16 years 1.5 1.4 ≥16 years 1.7 1.4 2. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤5 times the upper limit of normal (ULN) for age 3. Total bilirubin <2 mg/dL (for Gilbert's Syndrome patients total bilirubin <4 mg/dL) 4. Adequate pulmonary function i. Oxygen saturation of >91% on room air ii. No or mild dyspnea (≤Grade 1)
• Must have a leukapheresis material of non-mobilized cells accepted for manufacturing.
• Prior gene therapy or engineered T cell therapy.
• Prior treatment with any anti-CD19 therapy.
• Allogeneic hematopoietic stem cell transplant (HSCT) <3 months prior to screening and ≤4 months prior to infusion.
• Presence of grade 2 to 4 acute or extensive chronic graft-versus-host disease (GVHD) in patients who received prior allogeneic HSCT.
• Prior diagnosis of malignancy other than study indication, and not disease free for 5 years.
• Clinically significant active infection confirmed by clinical evidence, imaging, or positive laboratory tests (e.g., blood cultures, PCR for DNA/RNA, etc.)
• Presence of active hepatitis B or C as indicated by serology.
• Human Immunodeficiency Virus (HIV) positive test.
• Active neurological autoimmune or inflammatory disorders not related to B cell NHL (eg: Guillain-Barre syndrome, Amyotrophic Lateral Sclerosis)
• Active central nervous system (CNS) involvement by malignancy.
• Patients with B-cell NHL in the context of post-transplant lymphoproliferative disorders (PTLD) associated lymphomas. Other protocol-defined inclusion/exclusion criteria may apply.

• Must have newly diagnosed multiple myeloma with a history of a minimum of 4 cycles of induction therapy, have received high-dose therapy (HDT) and autologous stem cell transplantation (ASCT) within 12 months of the start of induction therapy, and be within 6 months of ASCT on the date of randomization
• Must have a very good partial response (VGPR) or better response assessed per International Myeloma Working Group (IMWG) 2016 criteria at the time of randomization
• Must have archived bone marrow samples collected before induction treatment (that is, at diagnosis) or before transplant (for example, at the end of induction) or have existing results on the index multiple myeloma clone based on Adaptive Biotechnologies' next generation sequencing (NGS)-based minimal residual disease (MRD) assay. Archived bone marrow samples will be used for calibration of myeloma clonal cells to facilitate assessment of primary end point by NGS. If an existing result on index myeloma clone is available from Adaptive Biotechnologies' NGS-based MRD assay, as part of institutional procedures, an archived bone marrow sample is not required as long as Adaptive Biotechnologies is able to retrieve historical results on the index myeloma clone form the clinical database. Any one of the following archived samples are required: (a) Greater than 1 milliliter (mL) viable frozen bone marrow aspirated aliquot (preferred) collected in an ethylenediaminetetra-acetic acid (EDTA) tube, frozen, and stored at a temperature of -80 centigrade (°C), or; (b) Non-decalcified diagnostic bone marrow aspirate clot sections (block or slides) for MRD assessment: (i) A formalin fixed paraffin embedded (FFPE) block of bone marrow aspirate clot, or slides (preferably 5, if available), 5 micrometer each, of non-decalcified bone marrow, or; (ii) Slides (preferably 5, if available), bone marrow aspirate smear; (iii) Please note, bone marrow core sections are not acceptable samples for analysis; (iv) In exceptional circumstances when index myeloma clone cannot be identified from the archived bone marrow sample, a post-transplant sample can be used to identify myeloma clone with permission from the sponsor
• Must have residual disease as defined by detectable MRD (Adaptive Biotechnologies' NGS based MRD assay)
• Must have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2
• A history of malignancy (other than multiple myeloma) unless all treatment of that malignancy was completed at least 2 years before consent and the participant has no evidence of disease before the of date of randomization. Exceptions are squamous and basal cell carcinomas of the skin, carcinoma in situ of the cervix or breast, or other non-invasive lesion that in the opinion of the investigator, with concurrence with the sponsor's medical monitor, is considered cured with minimal risk of recurrence within 3 years
• Must not have progressed on multiple myeloma (MM) therapy at any time prior to screening
• Have had prior treatment/therapy with: (a) Daratumumab or any other anti-cluster of differentiation 38 (CD38) therapies, (b) Focal radiation therapy within 14 days prior to randomization with the exception of palliative radiotherapy for symptomatic management but not on measurable extramedullary plasmacytoma. Radiotherapy within 14 days prior to randomization on measurable extramedullary plasmacytoma is not permitted even in the setting of palliation for symptomatic management, or (c) Plasmapheresis within 28 days of randomization
• Be exhibiting clinical signs of meningeal or central nervous system involvement due to multiple myeloma
• Have known chronic obstructive pulmonary disease (COPD) with a forced expiratory volume in 1 second (FEV1) less than (<) 50 percent (%) of predicted normal
• Have known moderate or severe persistent asthma within the past 2 years or current uncontrolled asthma of any classification
• Have any of the following: (a) Known history of seropositivity for human immunodeficiency virus (HIV); (b) Seropositive for hepatitis B (defined by a positive test for hepatitis B surface antigen [HBsAg]. Participants with resolved infection (that is, participants who are HBsAg negative but positive for antibodies to hepatitis B core antigen [anti-HBc] and/or antibodies to hepatitis B surface antigen [anti-HBs]) must be screened using real-time polymerase chain reaction (PCR) measurement of hepatitis B virus (HBV) DNA levels. Those who are PCR positive will be excluded. EXCEPTION: Participants with serologic findings suggestive of HBV vaccination (anti-HBs positivity as the only serologic marker) AND a known history of prior HBV vaccination, do not need to be tested for HBV DNA by PCR; (c) Seropositive for hepatitis C (anti-hepatitis C virus [HCV] antibody positive or HCV-RNA quantitation positive), except in the setting of a sustained virologic response, defined as aviremia at least 12 weeks after completion of antiviral therapy)

1. Histologically or pathologically confirmed diagnosis of AML based on WHO classification that has relapsed after, or is refractory to, two, three, or four prior induction regimens that may have included intensive chemotherapy (e.g., "7+3" cytarabine and daunorubicin), epigenetic therapy (i.e., azacitidine or decitabine), or targeted therapy (e.g., FLT-3, IDH-1/2, BCL-2, monoclonal antibody). (Relapse is defined as reemergence of ≥5% leukemia blasts in bone marrow or ≥1% blasts in peripheral blood ≥90 days after first CR or CR without complete platelet recovery (CRp). Refractory AML is defined as persistent disease ≥28 days after initiation of intensive induction therapy (up to two induction cycles) or relapse <90 days after first CR or CRp. Refractory disease for patients undergoing hypomethylating agent induction is defined as lack of remission following at least 2 cycles of epigenetic therapy without reduction in bone marrow blast status.) Patients with a history of IPSS-R high or very high risk MDS that transformed to AML during treatment with hypomethylating drugs and then relapse following or are refractory to a subsequent AML induction regimen may be enrolled as Second Salvage AML patients. Additionally, patients with a history of MPN in accelerated phase (MPN-AP) or high-risk primary myelofibrosis (PMF) that transformed to AML during treatment with hypomethylating drugs and then relapse following or are refractory to a subsequent AML induction regimen may be enrolled as Second Salvage AML patients. 2. Aged ≥ 18 years. 3. ECOG Performance Status of 0, 1 or 2. 4. Adequate clinical laboratory values (i.e., plasma creatinine <2.5 x upper limit of normal (ULN) for the institution, bilirubin <2.5 x ULN, alanine transaminase (ALT) and aspartate transaminase (AST) ≤2.5 x ULN). 5. Absence of active central nervous system (CNS) involvement by leukemia. Patients with previously diagnosed CNS leukemia are eligible if the CNS leukemia is under control and intrathecal treatment may continue throughout the study. 6. Absence of uncontrolled intercurrent illnesses, including uncontrolled infections, cardiac conditions, or other organ dysfunctions. 7. Signed informed consent prior to the start of any study specific procedures. 8. Women of child-bearing potential must have a negative serum or urine pregnancy test. 9. Male and female patients must agree to use acceptable contraceptive methods for the duration of the study and for at least one month after the last drug administration. 1. The interval from prior treatment to time of study drug administration is < 2 weeks for cytotoxic agents or < 5 half-lives for noncytotoxic agents. Exceptions: Use of hydroxyurea is allowed before the start of study and is to be discontinued prior to the initiation of study treatment. At the investigator's discretion, for patients with significant leukocytosis that develops during the early treatment cycles, hydroxyurea may be administered. The hydroxyurea should be discontinued as soon as clinically appropriate. 2. Any >grade 1 persistent clinically significant toxicities from prior chemotherapy. 3. Inadequate Cardiac (left ventricular ejection fraction ≤40%) function. 4. White blood cell (WBC) count >15,000/μL (Note: Patients considered for possible venetoclax-containing regimen must have WBC ≤10k/μL prior to initiating venetoclax treatment). 5. For patients with prior hematopoietic stem cell transplant (HSCT): 1. Less than 3 months since HSCT 2. Acute Graft versus Host Disease (GvHD) >Grade 1 3. Chronic GvHD >Grade 1 6. Any concomitant condition that in the opinion of the investigator could compromise the objectives of this study and the patient's compliance. 7. A pregnant or lactating woman. 8. Current malignancies of another type. Exceptions: Patients may participate if they have previously treated and currently controlled prostate cancer, or adequately treated in situ cervical cancer or basal cell skin cancer, or other malignancies with no evidence of disease for 2 years or more. 9. Patient has acute promyelocytic leukemia (APL). 10. Patients with known HIV, active HBV or active HCV infection (note: testing for these infections is not required). For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated. 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. 11. Documented or known clinically significant bleeding disorder.

• Written assent (when applicable) and written informed consent by a legally authorized representative provided prior to participation in the study
• Age 2
•<18 years old
• CKD defined by eGFR <60 mL/min/1.73m2 including renal transplant, peritoneal dialysis
• Two potassium measurements of 5.1 to < 6.5 mEq/L performed on separate days
• In the opinion of the study doctor, is expected to require treatment for hyperkalemia for at least 6 months
• If taking any renin-angiotensin-aldosterone system inhibitors (RAASi) beta blockers or diuretic medications, must be on a stable dose for at least 28 days prior to Screening
• Negative pregnancy test in females of child-bearing potential
• False elevation in blood potassium (pseudohyperkalemia) due to hemolysis (breaking of blood cells) or abnormally high counts of blood cells at Screening
• Evidence of potassium-related electrocardiogram (ECG) changes at Screening
• Any of the following kidney conditions: hemodialysis, renal artery stenosis, and acute kidney injury or a history of acute renal insufficiency in the past 3 months
• Severe disorder of stomach or intestines including surgery
• Increased liver enzymes (ALT, AST > 3 times upper limit of normal) at Screening
• Active cancer, currently on cancer treatment or history of cancer in the past 2 years (except for non-melanoma skin cancer)
• Have had a heart or liver transplant, or anticipated need for transplant during the study treatment period including a scheduled kidney transplant. (Note: patients currently on a kidney transplant wait list are not excluded unless there is an identified donor).
• Alcohol abuse or substance use disorder within 1 year of Screening
• Subjects currently being treated with or having taken any one of the following medications (includes resins) in the 7 days prior to Screening: sodium or calcium polystyrene sulfonate, drospirenone
• Use of certain medications that can affect blood potassium levels if doses have not been stable for at least 14 days prior to Screening or if doses are anticipated to change during the 14-day PD / Dose Finding Phase
• Use of investigational product within 30 days of screening or within 5 half-lives, whichever is longer
• Known hypersensitivity to patiromer or its components
• In the opinion of the Investigator, any medical condition, uncontrolled systemic disease, or serious intercurrent illness that would significantly decrease study compliance or jeopardize the safety of the subject or potentially affect the quality of the data

Participants must satisfy the following criteria to be enrolled in the study: 1. Participant (male or female) is ≥ 18 years of age at the time of signing the informed consent form (ICF). 2. Participant has a history of multiple myeloma (MM) with relapsed and refractory disease, and must:
• Have disease that is nonresponsive while on their last antimyeloma therapy or documented disease progression on or within 60 days from the last dose of their last antimyeloma therapy; and,
• Must have received at least 3 prior MM treatment regimens and,
• Must have received a proteasome inhibitor, an immunomodulatory agent and an anti-CD38 antibody (eg, daratumumab); and,
• Should have failed treatment with or are intolerant to all established therapies. 3. Participants must have measurable disease, including at least one of the criteria below:
• M-protein quantities ≥ 0.5 g/dL by sPEP or
• ≥ 200 mg/24 hours urine collection by uPEP or
• Serum FLC levels > 100 mg/L (milligrams/liter involved light chain) and an abnormal kappa/lambda (κ/λ) ratio in patients without detectable serum or urine M-protein or
• For participants with immunoglobulin class A (IgA) myeloma whose disease can only be reliably measured by quantitative immunoglobulin measurement, a serum IgA level ≥ 0.50 g/dL. 4. Participant has an ECOG PS of 0-1. 5. Participants must have the following laboratory values (determined by local laboratory):
• Absolute neutrophil count (ANC) ≥ 1.0 x 10^9/L without growth factor support for 7 days (14 days if pegfilgrastim)
• Platelets (plt) ≥ 75 x 10^9/L without transfusion for 7 days or plt ≥ 50 x 109/L when BM plasma cells ≥ 50%.
• Potassium within normal limits or correctable with supplements.
• Aspartate aminotransferase (AST/SGOT) and alanine aminotransferase (ALT/SGPT) ≤ 2.5 x upper limit of normal (ULN).
• Serum bilirubin ≤ 1.5 x ULN (or ≤ 2.0 x ULN for participants with documented Gilbert's syndrome).
• Estimated serum creatinine clearance of ≥ 60 mL/min
• International normalized ratio (INR) < 1.5 x ULN and activated partial thromboplastin time (APTT) < 1.5 x ULN. 6. Females of childbearing potential (FCBP) must:
• Either commit to true abstinence from heterosexual contact (which must be reviewed on a monthly basis and source documented) or agree to use, and be able to comply with, at least two effective contraceptive methods (oral, injectable, or implantable hormonal contraceptive; tubal ligation; intra-uterine device; barrier contraceptive with spermicide; or vasectomized partner), one of which must be barrier, from signing the ICF, throughout the study, during dose interruptions, and for up to 42 days following the last dose of CC-99712; and
• Have two negative pregnancy tests as verified by the Investigator prior to starting CC-99712. Participant must agree to ongoing pregnancy testing during the course of the study, and after end of study treatment. This applies even if the participant practices true abstinence from heterosexual contact. The participant may not receive IP until the Investigator has verified that the result of the pregnancy test is negative.
• a negative serum pregnancy test (sensitivity of at least 25 mIU/mL) at Screening
• a negative serum or urine pregnancy test (Investigator's discretion) within 72 hours prior to Cycle 1 Day -1 of study treatment, and within 72 hours prior to Day -1 of every subsequent cycle (note that the Screening serum pregnancy test can be used as the test prior to Day -1 study treatment if it is performed within the prior 72 hours). A serum or urine pregnancy test (investigators discretion) must also be performed at the end of study for each FCBP.
• Avoid conceiving for 42 days after the last dose of CC-99712.
• Agree to ongoing pregnancy testing during the course of the study, and after the end of study treatment. This applies even if the participant practices true abstinence2 from heterosexual contact.
• Males must practice true abstinence (which must be reviewed on a monthly basis) or agree to use a condom (a latex condom is recommended) during sexual contact with a pregnant female or a FCBP and will avoid conceiving from signing the ICF, while participating in the study, during dose interruptions, and for at least 42 days following CC-99712 discontinuation, even if he has undergone a successful vasectomy. 7. Participant is willing and able to adhere to the study visit schedule and other protocol requirements. The presence of any of the following will exclude a participant from enrollment: 1. In Part A only, participant has received prior therapy directed at BCMA including, but not limited to, antibody-drug conjugates (BCMA-ADC), bispecific T cell-engaging antibodies or molecules, or BCMA-directed T cell therapy (eg, BCMA chimeric antigen receptor [CAR] T cells). 2. Participant has symptomatic central nervous system involvement of MM. 3. Participant has nonsecretory MM, plasma cell leukemia, Waldenstrom's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes), or amyloidosis. 4. Participants with a history of class III or IV congestive heart failure (CHF) or severe non-ischemic cardiomyopathy, unstable angina, myocardial infarction, or ventricular arrhythmia within the previous 6 months prior to signing ICF. 5. Participant had a prior autologous stem cell transplant ≤ 3 months prior to starting CC-99712. 6. Participant had a prior allogeneic stem cell transplant with either standard or reduced intensity conditioning ≤ 6 months prior to starting CC-99712 or is on systemic immunosuppression for graft-versus host disease. 7. Participant had a prior chimeric antigen receptor T (CAR T) cell product ≤ 4 weeks prior to starting CC-99712. 8. Participant had a prior systemic cancer-directed treatments or investigational modalities within 5 pharmacokinetic half-lives or 2 weeks prior to starting CC-99712, whichever is longer. The only exception is emergency use of a short course of corticosteroids (equivalent of dexamethasone 40 mg/day for a maximum 4 days) before treatment. 9. Participant had major surgery ≤ 2 weeks prior to starting CC-99712. Participants must have recovered from any clinically significant effects of recent surgery. 10. Participant is a pregnant or lactating female. 11. Participant has known human immunodeficiency virus (HIV) infection. 12. Participant has known history of chronic, active hepatitis B or C virus (HBV/HCV) infection. 13. Participant requires ongoing treatment with chronic, therapeutic dosing of anti-coagulants (eg, warfarin, low molecular weight heparin, Factor Xa inhibitors). 14. Participant has a history of concurrent second cancers requiring active, ongoing systemic treatment. 15. Participant has known history of cirrhosis or has clinically significant liver or biliary disease. Participants with stable chronic liver or biliary disease (such as Gilbert's syndrome, asymptomatic gallstones, or hepatobiliary involvement of malignancy) may participate in the study, however, sponsor medical monitor must be contacted for a discussion before enrollment. 16. Participant has a history of clinically significant corneal disease requiring therapy or ongoing active corneal disease. 17. Participant has active peripheral neuropathy or neuropathic pain Grade 2 or higher, as defined by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE v5.0). 18. Participant has any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the participant from participating in the study. 19. Participant has any condition including the presence of laboratory abnormalities, such as active or uncontrolled infection, which places the participant at unacceptable risk if he/she were to participate in the study. 20. Participant has any condition that confounds the ability to interpret data from the study. 21. Participant has confirmed extramedullary plasmacytoma in pulmonary, cardiac, or hepatic systems. 22. Participant has documented malabsorptive syndromes including enteropathies, gastroenteritis (acute or chronic) or diarrhea (acute or chronic) with active treatment. 23. Participant has previous SARS-CoV-2 infection within 10 days for mild or asymptomatic infections or 20 days for severe/critical illness prior to C1D1. • Acute symptoms must have resolved and based on investigator assessment in consultation with the medical monitor, there are no sequelae that would place the participant at a higher risk of receiving study treatment. 24. Participant has previous SARS-CoV-2 vaccine within 14 days of C1D1. For vaccines requiring more than one dose, the full series (eg, both doses of a two-dose series) should be completed at least 14 days prior to C1D1 when feasible and when a delay in C1D1 would not put the study participant at risk.

• Eastern Collaborative Oncology Group (ECOG) performance score of less than or equal to 2.
• Documented relapsed or progressive Multiple Myeloma (MM) on or after any regimen or is refractory to the most recent line of therapy.
• Positive for translocation t(11;14) as determined by an analytically validated Fluorescent In Situ Hybridization (FISH) assay per central laboratory testing.
• Received prior treatment with at least 1 prior line of therapy for MM.
• Measurable disease on Screening per International Myeloma Working Group (IMWG) criteria.
• Meets absolute neutrophil count, platelet count, hemoglobin, liver and kidney function laboratory values within 2 weeks prior to first dose of study drug.
• Has a pre-existing condition that is contraindicated including.
• Non-secretory or oligo-secretory MM
• Active plasma cell leukemia.
• Waldenström's macroglobulinemia.
• Primary amyloidosis.
• POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes).
• Active hepatitis B or C infection based on screening blood testing.
• Known active Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
• Significant cardiovascular disease.
• Major surgery within 4 weeks prior to first dose.
• Acute infections requiring antibiotic, antifungal or antiviral therapy within14 days prior to first dose.
• Peripheral neuropathy ≥ Grade 3 or ≥ Grade 2 with pain within 2 weeks prior to first dose.
• Uncontrolled diabetes or uncontrolled hypertension within 14 days prior to first dose.
• Any other medical condition that, in the opinion of the Investigator, would adversely affect the participant's participation in the study.
• History of other active malignancies, including myelodysplastic syndrome (MDS), within the past 3 years prior to study entry Other protocol defined inclusion/exclusion criteria could apply

• Each patient must meet the following criteria to be enrolled in this study. 1. Be able to and provide written informed consent and be willing and able to comply with all study procedures 2. Adult, 18 years and older 3. AL amyloidosis Mayo stage IIIa based on the 2013 European Modification of the 2004 Standard Mayo Clinic Staging in patients with advanced cardiac involvement at the time of Screening 4. Measurable hematologic disease at Screening as defined by at least one of the following: 1. Involved/Uninvolved Free Light Chain Difference (dFLC) > 4 mg/dL or 2. Involved Free Light Chain (iFLC) > 4 mg/dL with abnormal ratio or 3. Serum Protein Electrophoresis (SPEP) m-spike > 0.5 g/dL 5. Histopathological diagnosis of amyloidosis AND confirmation of AL derived amyloid deposits by at least one of the following: 1. Immunohistochemistry or 2. Mass spectrometry or 3. Characteristic electron microscopy appearance 6. Cardiac involvement as defined by: a. Documented clinical signs and symptoms supportive of a diagnosis of heart failure in the setting of a confirmed diagnosis of AL amyloidosis in the absence of an alternative explanation for heart failure AND b. At least one of the following: i. Endomyocardial biopsy demonstrating AL cardiac amyloidosis or ii. Echocardiogram demonstrating a mean left ventricular wall thickness (calculated as [IVSd+LPWd]/2) of > 12 mm at diastole in the absence of other causes (e.g., severe hypertension, aortic stenosis), which would adequately explain the degree of wall thickening or iii. Cardiac MRI with gadolinium contrast agent diagnostic or cardiac amyloidosis 7. Planned first-line treatment for plasma cell dyscrasia is a CyBorD-based regimen administered as Standard of Care (SoC) 8. Adequate bone marrow reserve and hepatic function as demonstrated by: 1. Absolute neutrophil count ≥ 1.0 x 109/L 2. Platelet count ≥ 75 x 109/L 3. Hemoglobin ≥ 9 g/dL 4. Total direct bilirubin ≤ 2 times the upper limit of normal (x ULN) unless due to Gilbert's syndrome. 5. Aspartate aminotransferase (AST) ≤ 3 x ULN 6. Alanine aminotransferase (ALT) ≤ 3 x ULN 7. Alkaline phosphatase (ALP) ≤ 5 x ULN (except for patients with hepatomegaly and isozymes specific to liver, rather than bone) 9. Women of childbearing potential (WOCBP) must have a negative pregnancy test during Screening and must agree to use highly effective physician approved contraception from Screening to at least 5 months following the last study drug administration or 12 months following the last dose of her PCD therapy, whichever is longer 10. Men must be surgically sterile or must agree to use effective physician approved contraception and refrain from donating sperm from Screening to at least 5 months following the last study drug administration or 12 months following the last dose of his PCD therapy, whichever is longer
• Patients who meet any of the following criteria will not be permitted entry to the study. 1. Have any other form of amyloidosis other than AL amyloidosis 2. Received prior therapy for AL amyloidosis or multiple myeloma. A maximum exposure of 2 weeks of a CyBorD-based PCD treatment after screening laboratory samples are obtained and prior to randomization is allowed. 3. Has POEMS syndrome or multiple myeloma defined as clonal bone marrow plasma cells > 10% or biopsy-proven bony or extramedullary plasmacytoma AND any one or more of the following CRAB features: a. Evidence of end organ damage that can be attributed to the underlying plasma cell proliferative disorder, specifically: i. Hypercalcemia: serum calcium > 0.25 mmol/L (> 1mg/dL) higher than the ULN or > 2.75 mmol/L (> 11mg/dL) ii. Renal insufficiency: creatinine clearance < 40 mL per minute or serum creatinine > 177mol/L (> 2mg/dL) iii. Anemia: hemoglobin value of > 20g/L below the lowest limit of normal, or a hemoglobin value < 100g/L iv. Bone lesions: one or more osteolytic lesion on skeletal radiography, CT, or PET/CT. If bone marrow has < 10% clonal plasma cells, more than one bone lesion is required to distinguish from solitary plasmacytoma with minimal marrow involvement OR b. Any one of the following biomarkers of malignancy: i. 60% or greater clonal plasma cells on bone marrow examination ii. More than one focal lesion on MRI that is at least 5mm or greater in size 4. Have supine systolic blood pressure < 90 mmHg or symptomatic orthostatic hypotension, defined as a decrease in systolic blood pressure upon standing of > 30 mmHg despite medical management (e.g., midodrine, fludrocortisones) in the absence of volume depletion 5. Taking prednisone or its equivalent > 10 mg/day 6. Taking doxycycline 7. Receiving dialysis 8. Planned stem cell transplant during the first 6 months of protocol therapy. Stem cell collection during the protocol therapy is permitted. 9. Have had myocardial infarction, uncontrolled angina, severe uncontrolled ventricular arrhythmias within 6 months prior to screening or percutaneous cardiac intervention with recent stent or coronary artery bypass grafting within 4 months prior to screening. Exacerbation of chronic condition or new acute condition will require discussion and approval by the Medical Monitor. 10. Left Ventricular Ejection Fraction (LVEF) is < 40% by echocardiogram at Screening 11. Have severe valvular stenosis (e.g., aortic or mitral stenosis with a valve area < 1.0 cm2) or severe congenital heart disease 12. Have history of sustained ventricular tachycardia or aborted ventricular fibrillation or a history of atrioventricular nodal or sinoatrial nodal dysfunction for which a pacemaker/implantable cardioverter-defibrillator (ICD) is indicated but not placed. (Participants who do have a pacemaker or ICD are allowed in the study.) 13. QT corrected by Fridericia (QTcF) is > 550 msec. Participants who have a pacemaker may be included regardless of calculated QTc interval. 14. There is evidence of acute ischemia or active conduction system abnormalities with the exception of any of the following: 1. First degree Atrioventricular (AV)-block 2. Second degree AV-block Type 1 (Mobitz Type 1/Wenckebach type) 3. Right or left bundle branch block 4. Atrial fibrillation with a controlled ventricular rate. (An uncontrolled ventricular rate [i.e., > 110 beats per minute] determined by an average of three beats in lead II or representative beats in lead II is not allowed) 15. Have had major surgery within 4 weeks of randomization or is planning major surgery during the study. Patients with surgical procedures conducted under local anesthesia may participate 16. There is active malignancy (including lymphoma) with the exception of any of the following: 1. Adequately treated basal cell carcinoma, squamous cell carcinoma, or in situ cervical cancer 2. Adequately treated stage I cancer from which the patient is currently in remission and has been in remission for > 2 years 3. Low-risk prostate cancer with Gleason score < 7 and prostate-specific antigen < 10 mg/mL 4. Other localized and/or low risk malignancies may be permitted with Medical Monitor approval. 17. Have received an investigational drug/device in another clinical investigational study within 60 days before Screening 18. Hypersensitivity to the study drug 19. Have received a live vaccine within 4 weeks prior to first dose of CyBorD 20. Women who are breast feeding 21. Have any other medical, social or psychological factors that could affect the patient's safety or ability to consent personally or comply with study procedures.