1. Age ≥ 18 years. 2. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 at screening (See Section 13, Appendix A). 3. Biopsy-proven histological high-grade non-Hodgkin lymphoma, such as diffuse large B-cell lymphoma (DLBCL), primary mediastinal B-cell lymphoma (PMBCL), or transformed follicular lymphoma. 4. Prior treatment with any CD19-directed CAR T-cell therapy, such as tisagenlecleucel (tisa-cel, Kymriah), axicabtagene ciloleucel (axi-cel, Yescarta), or lisocabtagene maraleucel (liso-cel). 5. Incomplete response noted on day 30 PET post-CAR-T, defined as not achieving CR per Lugano 2014 classification37. 6. Ability to understand and the willingness to sign a written informed consent 7. All men, as well as women of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. 7.1 A female of child-bearing potential is any woman (regardless of sexual orientation, marital status, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
• Has not undergone a hysterectomy or bilateral oophorectomy; or
• Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months). 1. Prior radiation therapy to one or more sites of incomplete response as noted on day 30 post-CAR-T PET/CT scan within the past one year. 2. Intracranial site of incomplete response as noted on day 30 post-CAR-T PET/CT scan or any active central nervous system involvement by malignancy. 3. Active grade 3 or higher CRS or neurotoxicity related to CAR-T. 4. Patients with prior history of auto-immune disease or other contraindication to RT. 5. Patients with life expectancy < 3 months. 6. Psychiatric illness/social situations that would limit compliance with study requirements. 7. Subjects must not be pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants. 8. Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements.

• Histologically confirmed DLBCL or associated subtype, defined by WHO 2016 classification
• Relapsed or Refractory disease after 2 or more lines of chemotherapy including rituximab and anthracycline and either having failed autologous stem cell transplant (ASCT), or being ineligible for or not consenting to ASCT
• Age > 18 years
• Eastern Cooperative Oncology Group (ECOG) performance status that is either 0 or 1 at screening. ECOG performance status of 2 at screen is allowed if the decrease in performance status is due to DLBCL
• Measurable disease according to Lugano 2014 criteria for assessing FDG PET/CT in lymphoma (Cheson et al, 2014)
• Subject must have a tumor biopsy sample, per protocol specified slide availability from the most recent relapse available prior to MBCART2019.1 Infusion. If medically not feasible to obtain biopsy from the most recent relapse and for cases when amount of tissue is limited, sponsor should be consulted, to confirm adequacy of sample for study required analyses.
• No clinical suspicion of CNS lymphoma
• If the subject has history of CNS disease, then he/she must have no signs or symptoms of CNS disease, have no active disease on magnetic resonance imaging (MRI) and have no large cell lymphoma present in cerebral spinal fluid (CSF) on cytospin preparation and flow cytometry, regardless of the number of white blood cells (WBCs)
• If has history of cerebral vascular accident (CVA), the CVA must be greater than 12 months prior to leukapheresis and any neurological deficits must be stable
• A creatinine clearance (as estimated either by a direct urine collection or Cockcroft-Gault Equation) > 60mL/min
• Cardiac ejection fraction (EF) ≥ 45% as determined by an echocardiogram (ECHO) or Multigated Radionuclide Angiography (MUGA)
• Resting O2 saturation >90% on room air
• Serum alanine aminotransferase (ALT) / aspartate aminotransferase (AST) <5 times the Upper Limit of Normal (ULN) for age
• Total bilirubin <1.5 mg/dl, except in individuals with Gilbert's syndrome
• Absolute neutrophil count > 1000/μL
• Absolute lymphocyte count > 100/μL
• Platelet count > 50,000/μL
• Estimated life expectancy of more than 3 months other than primary disease
• Subjects of child-bearing or child-fathering potential must be willing to practice birth control from the time of enrollment on this study until the follow-up period of the study.
• Primary CNS lymphoma
• Richter's transformed DLBCL arising from chronic lymphocytic leukemia (CLL)
• Unable to give informed consent
• Known history of infection with human immunodeficiency virus (HIV) or active hepatitis B (HBsAg positive). If there is a history of treated hepatitis B or hepatitis C, the viral load must be quantitative polymerase chain reaction (PCR) negative; antiviral prophylaxis is required if HBsAg negative and anti-HBc positive.
• Known history of infection with hepatitis C virus (anti-HCV positive) unless viral load is undetectable per quantitative PCR and/or nucleic acid testing
• Known history of active seizures or presence of seizure activities or on active, anti-seizure medications within the prior 12 months
• Known history of CVA within prior 12 months.
• Known history or presence of autoimmune CNS disease, such as multiple sclerosis, optic neuritis, or other immunologic or inflammatory disease
• Presence of CNS disorder that, in the judgment of the investigator, may impair the ability to evaluate neurotoxicity
• Active systemic fungal, viral, or bacterial infection
• Pregnant or breast-feeding woman
• Previous or concurrent malignancy with the following exceptions:
• Adequately treated basal cell or squamous cell carcinoma (adequate wound healing required prior to study entry)
• In situ carcinoma of the cervix or breast, treated curatively and without evidence of recurrence for at least 2 years prior to the study
• Adequately treated breast or prostate carcinoma on hormonal therapies such as Lupron or tamoxifen and in clinical remission of ≥ 2 years
• A primary malignancy which has been completely resected / treated with curative intent and in complete remission of ≥ 2 years
• History of non-neurologic autoimmune disease (e.g. Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus)requiring systemic immunosuppressive or system disease modifying agents within the last 2 years
• Medical condition requiring prolonged use of systemic corticosteroids equivalent to prednisone >10 mg/day
• History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 6 months of enrollment
• Concurrent radiotherapy (normal tissue sparing palliative radiotherapy allowed up to time of lymphodepletion). For systemic therapy, at least 2 weeks or 5 half-lives, whichever is shorter, must have elapsed at the time of scheduled leukapheresis
• Baseline dementia that would interfere with therapy or monitoring, determined using Immune Effector Cell-Associated Encephalopathy (ICE) Assessment at baseline
• History of severe immediate hypersensitivity reaction to any of the agents used in this study
• Refusal to participate in additional lentiviral gene therapy LTFU protocol
• Prior CAR-T therapy for any indication or systemic gene modifying therapy for DLBCL
• Prior allogeneic stem cell transplant for any indication
• Prior BITE antibodies for cancer therapy
• Prior T cell receptor-engineered T cell therapy

Key Inclusion Criteria 1. Subject must sign an Informed Consent Form (ICF) 2. At least 18 years of age 3. Measurable disease defined as ≥1 measurable nodal lesion (long axis >1.5 cm and short axis >1.0 cm) or ≥1 measurable extra-nodal lesion (long axis >1.0 cm) on computed tomography (CT) or magnetic resonance imaging (MRI) 4. Eastern Cooperative Oncology Group (ECOG) PS score of 0, 1 or 2 5. Acceptable organ function at screening 6. CD20-positive non-Hodgkin lymphoma (NHL) at most recent representative tumor biopsy 7. If of childbearing potential subject must practicing a highly effective method of birth control 8. A man who is sexually active with a woman of childbearing potential must agree to use a barrier method of birth control Arm 1:
• Newly Diagnosed Documented diffuse large B-cell lymphoma (DLBCL)
• DLBCL, NOS
• "double-hit" or "triple-hit" DLBCL
• FL Grade 3B Arm 2: R/R FL Arm 3: Newly diagnosed, previously untreated FL grade 1-3A Arm 4:
• Documented DLBCL and eligible for HDT-ASCT
• DLBCL, NOS
• "double-hit" or "triple-hit" DLBCL
• FL Grade 3B Arm 5:
• Relapsed or refractory documented DLBCL and ineligible for HDT-ASCT
• DLBCL, NOS
• "double-hit" or "triple-hit" DLBCL
• FL Grade 3B Arm 6: Newly diagnosed, previously untreated FL grade 1-3A Arm 7:
• FL Grade 1-3A
• If PR or CR per Lugano criteria following first-line or second-line treatment with SOC regimen, and last dose of SOC within 6 months prior to enrollment. Arm 8:
• DLBCL, NOS
• T-cell/histiocyte rich DLBCL
• "double-hit" or "triple-hit" DLBCL
• FL Grade 3B Key Exclusion Criteria 1. Chemotherapy, radiation therapy, or major surgery within 4 weeks prior to the first dose of epcoritamab 2. Any prior treatment with a bispecific antibody targeting CD3 and CD20. 3. Treatment with CAR-T therapy within 30 days prior to first dose of epcoritamab 4. Clinically significant cardiovascular disease 5. Evidence of significant, uncontrolled concomitant diseases that could affect compliance with the protocol or interpretation of results 6. CNS lymphoma or known CNS involvement by lymphoma at screening as confirmed by MRI/CT scan of the brain and, if clinically indicated, by lumbar puncture 7. Active positive tests for hepatitis B virus or hepatitis C virus indicating acute or chronic infection 8. Known history of seropositivity of human immunodeficiency virus (HIV) 9. Active tuberculosis or history of completed treatment for active tuberculosis within the past 12 months 10. Neuropathy > grade 1 11. Receiving immunostimulatory agent 12. Prior allogeneic HSCT 13. Current seizure disorder requiring anti-epileptic therapy NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Key
• EBV+ relapsed/refractory lymphoma following 2 or more prior systemic therapies
• EBV+ DLBCL, NOS: Must have received at least one course of an anti-CD20 immunotherapy, and at least one course of anthracycline-based chemotherapy
• PTLD: Must have received immunotherapy with an anti-CD20 agent.
• Hodgkin lymphoma: Must have received at least one course of anthracycline-based chemotherapy. Patients with classical Hodgkin lymphoma should have failed or be ineligible for an anti-PD-1 agent and CD30-directed therapy.
• For ENKTL and PTCL patients only: Relapsed/refractory disease following 1 or more prior systemic therapies. ENKTL patients must have failed an asparaginase-containing regimen.
• No available therapies in the opinion of the Investigator
• Not eligible for high-dose chemotherapy with allogeneic/autologous stem cell transplantation or CAR-T therapy
• Measurable disease per Lugano 2007
• ECOG performance status 0, 1, 2
• Adequate bone marrow function Key
• Presence or history of CNS involvement by lymphoma
• Systemic anticancer therapy or CAR-T within 21 days
• Antibody (anticancer) agents within 28 days
• Less than 60 days from prior autologous hematopoietic stem cell or solid organ transplant
• Less than 90 days from prior allogeneic transplant.
• Daily corticosteroids (≥20 mg of prednisone or equivalent) within week prior to Cycle 1 Day 1
• Inability to take oral medication, malabsorption syndrome or any other gastrointestinal condition (nausea, diarrhea, vomiting) that may impact the absorption of nanatinostat and valganciclovir.
• Active infection requiring systemic therapy (excluding viral upper respiratory tract infections).

Main Inclusion Criteria Escalation Part (recruitment completed)
• Documented CD20+ mature B-cell neoplasm 1. Diffuse large B-cell lymphoma
•de novo or transformed 2. High-grade B-cell lymphoma 3. Primary mediastinal large B-cell lymphoma 4. Follicular lymphoma 5. Mantle cell lymphoma 6. Small lymphocytic lymphoma 7. Marginal zone lymphoma (nodal, extranodal or mucosa associated)
• Relapsed, progressive and/or refractory disease following treatment with an anti-CD20 monoclonal antibody (e.g. rituximab) potentially in combination with chemotherapy and/or relapsed after autologous stem cell rescue.
• ECOG performance status 0,1 or 2
• Patients must have measurable disease by CT, MRI or PET-CT scan
• Acceptable renal function
• Acceptable liver function Main Inclusion Criteria Expansion and Optimization Parts
• Documented CD20 positive mature B cell neoplasm or CD20+ MCL
• Diffuse large B cell lymphoma, de novo or transformed (including double hit or triple hit)
• Primary mediastinal large B cell lymphoma
• Follicular lymphoma grade 3B
• Histologic confirmed follicular lymphoma
• Marginal zone lymphomas
• Small lymphocytic lymphoma
• Mantle Cell Lymphoma (prior BTKi or intolerant to BTKi)
• At least 2 therapies including an anti CD20 monoclonal antibody containing chemotherapy combination regimen
• Either failed prior autologous hematopoietic stem cell transplantation or ineligible for autologous stem cell transplantation due to age or comorbidities
• At least 1 measurable site of disease based on CT, MRI or PET-CT scan with involvement of 2 or more clearly demarcated lesions and or nodes NOTE: Other protocol defined Inclusion criteria may apply. Main Exclusion Criteria Escalation, Expansion and Optimization Parts
• Primary central nervous system (CNS) lymphoma or CNS involvement by lymphoma at screening
• Known past or current malignancy other than inclusion diagnosis
• AST, and/or ALT >3 × upper limit of normal
• Total bilirubin >1.5 × upper limit of normal, unless bilirubin rise is due to Gilbert's syndrome or of non-hepatic origin
• Estimated CrCl <45 mL/min
• Known clinically significant cardiovascular disease
• Ongoing active bacterial, viral, fungal, mycobacterial, parasitic, or other infection requiring systemic treatment (excluding prophylactic treatment). Past COVID-19 infection may be a risk factor
• Confirmed history or current autoimmune disease or other diseases resulting in permanent immunosuppression or requiring permanent immunosuppressive therapy
• Seizure disorder requiring therapy (such as steroids or anti-epileptics)
• Any prior therapy with an investigational bispecific antibody targeting CD3 and CD20
• Prior treatment with chimeric antigen receptor T-cell (CAR-T) therapy within 30 days prior to first epcoritamab administration
• Eligible for curative intensive salvage therapy followed by high dose chemotherapy with HSCT rescue
• Autologous HSCT within 100 days prior to first epcoritamab administration, or any prior allogeneic HSCT or solid organ transplantation
• Active hepatitis B (DNA PCR-positive) or hepatitis C (RNA PCR-positive infection). Subjects with evidence of prior HBV but who are PCR-negative are permitted in
• Known human immunodeficiency virus (HIV) infection
• Exposed to live or live attenuated vaccine within 4 weeks prior to signing ICF
• Pregnancy or breast feeding
• Patient is known or suspected of not being able to comply with the study protocol or has any condition for which, participation would not be in the best interest of the patient
• Contraindication to all uric acid lowering agents

Key 1. Be at least 18 years of age. 2. Must sign an informed consent form prior to any screening procedures. 3. Dose Escalation: Has histologically or cytologically confirmed relapsed and/or refractory B-cell NHL with no available standard therapy or is not a candidate for available standard therapy, and for whom, in the opinion of the investigator, the experimental therapy may be beneficial. All subjects must have received at least two prior lines of systemic therapy. Dose Expansion: Has histologically or cytologically confirmed relapsed or refractory B-cell NHL. All subjects must have received at least 2 prior lines of systemic therapy, and, 1. For FL and DLBCL, at least 1 of the 2 prior lines of treatment must have been a CD20 containing systemic regimen; 2. For CLL, subjects must have received at least one prior line of BTK inhibitor or BCL 2 inhibitor. 4. Has one of the eligible subtypes of B-cell NHL : Dose Escalation: (DLBCL, HGBCL, PMBCL, FL, MCL, MZL, SLL, or CLL). Dose Expansion: (DLBCL, FL, CLL) 5. Has measurable disease for B-cell NHL or has active disease for Chronic Lymphocytic Leukemia (CLL). 6. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. 7. Has adequate hepatic, renal, and bone marrow functions. 8. Before the first dose of GEN3009, during the trial, and for 12 months after the last dose of GEN3009 and/or the combination, a woman must be either not of childbearing potential or of childbearing potential and practicing a highly effective method of birth control, and must have a negative serum beta-human chorionic gonadotropin (beta-hCG) and urine pregnancy test at screening. 9. A man who is sexually active with a woman of childbearing potential and has not had a vasectomy must agree to use a barrier method of birth control. 10. Subjects must have a life expectancy of at least 3 months. Key 1. Prior treatment with a CD37-targeting agent. 2. Prior allogeneic Hematopoietic Stem Cell Transplantation (HSCT). 3. Prior treatment with a CD3xCD20 bispecific antibody (Combination Expansion cohort only). 4. Autologous HSCT within 3 months before the first dose of GEN3009. 5. Lymphomas leukemic phase: high absolute lymphocyte count or the presence of abnormal cells in the peripheral blood indicating circulating lymphoma cells. 6. Treatment with an anti-cancer biologic including anti-CD20 therapy, radio-conjugated or toxin-conjugated antibody or chimeric antigen receptor (CAR) T-cell therapy within 4 weeks or 5 half-lives, whichever is shorter, before the first dose of GEN3009. Treatment with small molecules such as BTK inhibitors, BCL2 inhibitors, or PI3K inhibitors within 5 half-lives prior to the first dose of GEN3009. 7. Chemotherapy or radiation therapy within 2 weeks of the first dose of GEN3009. 8. Treatment with an investigational drug or an invasive investigational medical device within 4 weeks or 5 half-lives, whichever is shorter, prior to the first dose of GEN3009, and at any time during the study treatment period. 9. Autoimmune disease or other diseases that require permanent or high-dose immunosuppressive therapy. 10. Received a cumulative dose of corticosteroids more than the equivalent of 250 mg of prednisone within the 2-week period before the first dose of GEN3009. 11. Has uncontrolled intercurrent illness. 12. Seizure disorder requiring therapy (such as steroids or anti-epileptics) (Combination Expansion cohort only). 13. Toxicities from previous anti-cancer therapies have not resolved to baseline levels or to Grade 1 or less except for alopecia and peripheral neuropathy. 14. Primary central nervous system (CNS) lymphoma or known CNS involvement at screening. 15. Known past or current malignancy other than inclusion diagnosis. 16. Had allergic reactions to anti-CD20 or anti-CD37 monoclonal antibody treatment or intolerant to GEN3009 or to the combination therapy excipients. 17. Has had major surgery within 4 weeks before screening or will not have fully recovered from surgery, or has major surgery planned during the time the subject is expected to participate in the trial (or within 4 weeks after the last dose of GEN3009 and/or the combination therapy). 18. Known history/positive serology for hepatitis B. 19. Known medical history or ongoing hepatitis C infection that has not been cured. 20. Known history of seropositivity for HIV infection. 21. Is a woman who is pregnant or breast-feeding, or who is planning to become pregnant while enrolled in this trial or within 12 months after the last dose of GEN3009 and/or the combination therapy. 22. Is a man who plans to father a child while enrolled in this trial or within 12 months after the last dose of GEN3009 and/or the combination therapy. 23. Has any condition for which, in the opinion of the investigator, participation would not be in the best interest of the subject (eg, compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments. Additionally, vulnerable subjects or subjects under guardianship, curatorship, judicial protection or deprived of liberty), are excluded from participation in this trial. 24. Exposed to live/live attenuated vaccine within 4 weeks prior to initiation of GEN3009 treatment. NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

• Cohort 1: Confirmed diagnosis of TP53wt DLBCL (WHO); R/R DLBCL after at least 2 prior lines of treatment or 1 prior for patients who are ineligible for stem cell transplant
• Cohort 2: Confirmed diagnosis of TP53wt CLL (iwCLL); R/R CLL after at least 1 prior line of treatment
• ECOG 0 to 2
• Adequate hematologic, hepatic, and renal functions.
• Prior treatment with any MDM2 inhibitor
• Prior treatment with any BTK inhibitor

Subjects must satisfy the following criteria to be enrolled in the study: 1. Phase 1: Subject < 18 years of age and weighs ≥ 6 kg at the time of signing the informed consent form (ICF)/informed assent form (IAF). Phase 2: Subject ≤ 25 years of age and weighs ≥ 6 kg at the time of signing the ICF/IAF. 2. Subject (when applicable, parental/legal representative) must understand and voluntarily provide permission to the ICF/IAF prior to conducting any study-related assessments/procedures. 3. Subject is willing and able to adhere to the study visit schedule and other protocol requirements. 4. Investigator considers the subject is appropriate for adoptive T cell therapy. 5. Evidence of CD19 expression via flow cytometry (peripheral blood or bone marrow) or immunohistochemistry (bone marrow biopsy) 6. Subject has a Karnofsky score of ≥ 50 (subjects ≥ 16 years of age) or a Lansky score ≥ 50 (subjects < 16 years of age). 7. Diagnosis of B-cell ALL or B-cell NHL as defined below: Phase 1: Subjects with r/r B-ALL, defined as morphological evidence of disease in BM (5% or greater lymphoblast by morphology) and either of the following:
• First or greater marrow relapse, or
• Any marrow relapse after allogeneic HSCT, or
• Primary refractory defined as not achieving a CR or a CRi after 2 or more separate induction regimens (or chemo-refractory as not achieving CR/CRi after 1 cycle of standard chemotherapy for relapsed leukemia), or
• Ineligible for allogeneic HSCT Note: Subjects will be included regardless of MRD status. Phase 2: Subjects with one of the following:
• Cohort 1: r/r B-ALL, defined as morphological evidence of disease in BM (5% or greater lymphoblast by morphology) and either:
• First or greater marrow relapse, or
• Any marrow relapse after allogeneic HSCT, or
• Primary refractory defined as not achieving a CR or a CRi after 2 or more separate induction regimens (or chemo-refractory as not achieving CR/CRi after 1 cycle of standard chemotherapy for relapsed leukemia), or
• Ineligible for allogeneic HSCT.
• Cohort 2: MRD+ B-ALL, defined as:
• < 5% lymphoblasts by morphology with,
• MRD detected by a validated assay at a frequency of 1 x10-4 or greater in BM cells. Subjects eligible for enrollment in Cohort 2 are those with MRD positive morphologic CR2 after re-induction when these subjects had previously experienced an early relapse (< 36 months) after first-line chemotherapy. Subjects who are in MRD+ morphologic CR3 and later, regardless of time to relapse in earlier lines, are also eligible. Subjects who are in morphologic relapse at screening (r/r B-ALL) and become MRD+ after bridging chemotherapy are also eligible for treatment in Cohort 2.
• Cohort 3: r/r B-NHL (DLBCL, BL or PMBCL), defined as measurable disease after 1 or more lines of chemotherapy and/or having failed HSCT or being ineligible for HSCT. Note: B-NHL subjects with secondary CNS lymphoma involvement are eligible however subject selection must consider clinical risk factors for severe neurological AEs and alternative treatment options. Subjects should only be enrolled if the Investigator considers the potential benefit outweighs the risk for the subject. 8. Subjects with Philadelphia chromosome positive ALL are eligible if they are intolerant to or have failed one or more lines of tyrosine-kinase inhibitor (TKI) therapy or if TKI therapy is contraindicated. 9. Adequate organ function, defined as:
• Adequate BM function to receive LD chemotherapy as assessed by the Investigator.
• Subject with adequate renal function, which is defined as: Serum creatinine based on age/gender as described below. Subjects that do not meet the criteria but who have a creatinine clearance or radioisotope glomerular filtration rate (GFR) > 70 mL/min/1.73 m2 are eligible.• Alanine aminotransferase (ALT) ≤ 5 x upper limit of normal (ULN) and total bilirubin < 2.0 mg/dL (or < 3.0 mg/dL for subjects with Gilbert's syndrome or leukemic/lymphomatous infiltration of the liver).
• Adequate pulmonary function, defined as ≤ Grade 1 dyspnea according to Common Toxicity Criteria for Adverse Events (CTCAE) and oxygen saturation (SaO2) ≥ 92% on room air.
• Adequate cardiac function, defined as left ventricular ejection fraction (LVEF) ≥ 40% as assessed by echocardiogram (ECHO) or multi-gated acquisition scan (MUGA) within 4 weeks prior to leukapheresis. 10. Adequate vascular access for leukapheresis procedure. 11. Participants must agree to use effective contraception The presence of any of the following will exclude a subject from enrollment: 1. Subject has any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the subject from participating in the study. 2. Subject has any condition including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study. 3. Subject has any condition that confounds the ability to interpret data from the study. 4. Subject with a history of another primary malignancy that has not been in remission for at least 2 years prior to enrollment. 5. Subjects who have received previous CD19-targeted therapy must have CD19-positive disease confirmed since completing the prior CD19-targeted therapy. 6. Prior CAR T cell or other genetically-modified T cell therapy. 7. Subject with a previous history of or active hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection. 8. Subjects with uncontrolled systemic fungal, bacterial, viral or other infection (including tuberculosis) despite appropriate antibiotics or other treatment at the time of leukapheresis or JCAR017 infusion. 9. Subject has presence of acute or chronic graft-versus-host disease (GVHD). 10. Subject with active autoimmune disease requiring immunosuppressive therapy. 11. Subject has cardiac disorders (CTCAE version 4.03 Grade 3 or 4) within the past 6 months. 12. Subject with a concomitant genetic syndrome, with the exception of Down's syndrome. 13. Subject with active CNS disease and significant neurological deterioration. Subjects with CNS-2 or CNS-3 involvement are eligible provided they are asymptomatic and do not have significant neurological deterioration and, in the opinion of the study investigator, the CNS disease burden can be controlled until JCAR017 infusion. 14. Subject with a history or presence of clinically relevant CNS pathology such as epilepsy, seizure, paresis, aphasia, stroke, cerebral edema, severe brain injuries, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, or psychosis. 15. Subject is pregnant or nursing. 16. Subject has used the following:
• Therapeutic doses of corticosteroids (defined as > 0.4 mg/kg maximum 20 mg/day prednisone or equivalent) within 7 days prior to leukapheresis or 72 hours prior to JCAR017 infusion. Physiologic replacement, topical, and inhaled steroids are permitted.
• Low-dose chemotherapy (eg, vincristine, rituximab, cyclophosphamide ≤ 300 mg/m2) given after leukapheresis to maintain disease control must be stopped ≥ 7 days prior to LD chemotherapy.
• Cytotoxic chemotherapeutic agents that are not considered lymphotoxic within 1 week prior to leukapheresis. Oral anticancer agents are allowed if at least 3 half-lives have elapsed prior to leukapheresis.
• Lymphotoxic chemotherapeutic agents (eg, cyclophosphamide, ifosfamide, bendamustine) within 2 weeks prior to leukapheresis.
• Experimental agents within 4 weeks prior to leukapheresis unless no response or PD is documented on the experimental therapy and at least 3 half-lives have elapsed prior to leukapheresis.
• Immunosuppressive therapies within 4 weeks prior to leukapheresis and JCAR017 infusion (eg, calcineurin inhibitors, methotrexate or other chemotherapeutics, mycophenolate, rapamycin, thalidomide, immunosuppressive antibodies such as antitumor necrosis factor [TNF], anti-IL-6, or anti-IL-6R).
• Donor lymphocyte infusions (DLI) within 6 weeks prior to JCAR017 infusion.
• Radiation within 6 weeks prior to leukapheresis. Subjects must have PD in irradiated lesions or have additional non-irradiated lesions to be eligible. Radiation to a single lesion, if additional non-irradiated, measurable lesions are present, is allowed up to 2 weeks prior to leukapheresis.
• Allogeneic HSCT within 90 days prior to leukapheresis. 17. Tumor invasion of venous or arterial vessels (B-NHL subjects only). 18. Deep Venous Thrombosis (DVT) or Pulmonary Embolism (PE) within 3 months prior to leukapheresis. Subjects with DVT or PE that occurred longer than 3 months prior to leukapheresis, who still require ongoing therapeutic levels of anti-coagulation therapy, are also excluded. 19. Existence of CD19-negative clone(s) of leukemia cells

• 1. Able to understand and willing to sign the Informed Consent Form;
• 2. Male or female ≥ 18 years;
• 3. Subjects with histologically or cytologically confirmed advanced unresectable or metastatic solid tumor, including lymphoma that have progressed following prior treatment. In Part A, subjects must have received, or be ineligible for or intolerant of all available approved or standard therapies known to confer clinical benefit including immunotherapy, or for whom no standard therapy exists; in Part B, subjects with advanced or metastatic solid tumors, including but not limited to lymphoma, melanoma, NSCLC, or other tumors with agreement of the Sponsor, who must have received at least one line of therapy for advanced or metastatic disease, but are not required to have received all standard therapies known to confer clinical benefit; In Part C, subjects must have received at least one line of therapy for advanced or metastatic disease but are not required to have received all standard therapies known to confer clinical benefit; In Part D, subjects with advanced or metastatic solid tumors that may include but not limited to lymphoma, melanoma, NSCLC, RCC or UC who must have received at least one line of therapy for advanced or metastatic disease, but are not required to have received all standard therapies known to confer clinical benefit.
• 4. Measurable disease per RECISTv1.1 and iRECIST, or RECIL 2017 for lymphoma
• 5. ECOG performance status of 0 or 1 with life expectancy of 3 months in the opinion of the investigator.
• 6. Adequate organ and marrow function, as defined below: 1. Hemoglobin 8.0 g/dL within first 2 weeks prior to first dose of TAB004 (are not requiring a transfusion within 14 days prior to dosing) 2. Absolute neutrophil count (ANC) 1.0 x 109 /L (1,000 /mm3) 3. Absolute lymphocyte count ≥ 0.6 x 109/L (600/mm3) 4. Platelet count 75 x 109 /L (75,000 /mm3), and not requiring platelet transfusions within the 5 days prior to dosing 5. Total bilirubin ≤ 1.5 x ULN except subjects with documented Gilbert's syndrome who must have a baseline total bilirubin ≤ 3.0 mg/dL 6. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 x ULN; for subjects with hepatic metastases, ALT and AST ≤ 5 x ULN 7. Serum creatinine ≤ 1.5 x ULN OR calculated creatinine clearance (CrCl) or 24 hour urine CrCl ≥ 40 mL/minute Cockcroft-Gault formula will be used to calculate CrCl. 24-hour urine CrCl will be derived using the measured creatinine clearance formula 8. International normalized ratio (INR) ≤ 2.0 and activated partial thromboplastin time (aPTT) ≤ 1.5 x ULN; applies only to subjects who do not receive therapeutic anticoagulation; subjects receiving therapeutic anticoagulation (such as low-molecular weight heparin or warfarin) should be on a stable dose
• 7. Willingness to provide consent for biopsy samples (In Part A, fresh pre-treatment biopsies will be requested from subjects with safely accessible lesions. For subjects who cannot provide a fresh pre-treatment biopsy, request for the most recent accessible archival specimen will be required. In Part B, C and D, fresh pre-treatment biopsies will be required from subjects with safely accessible lesions. The most recent archival specimens will also be requested).
• 8. Females of childbearing potential who are sexually active with a nonsterilized male partner must use effective contraception from time of screening, and must agree to continue using such precautions for 90 days after the final dose of TAB004 or toripalimab; cessation of birth control after this point should be discussed with a responsible physician. Periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control.
• 9. Females of childbearing potential are defined as those who are not surgically sterile (i.e., bilateral tubal ligation, bilateral oophorectomy, or complete hysterectomy) or postmenopausal (defined as at least 12 months with no menses confirmed by follicle-stimulating hormone [FSH] levels. FSH testing will be conducted at the Screening visit to confirm post-menopausal status).
• 10. Subjects must use effective contraception. Nonsterilized males who are sexually active with a female partner of childbearing potential must use effective contraception from Day 1 and for 90 days after receipt of the final dose of TAB004 or toripalimab.
• 1. Concurrent enrollment in another clinical study, unless it is an observational (non interventional) clinical study or the follow-up period of an interventional study.
• 2. Any concurrent anti-cancer therapy, such as but not limited to chemotherapy, targeted therapy, radiotherapy, immunotherapy, or biologic therapy. Radiation treatment for palliative intent is allowed provided that lesions other than those receiving radiation are available to measure response. Concurrent use of hormones for non-cancer-related conditions (e.g., insulin for type 2 diabetes and hormone replacement therapy) is acceptable. Note: Local treatment of isolated lesions for palliative intent is acceptable (e.g., by local surgery or radiotherapy).
• 3. Receipt of any investigational anticancer therapy within 28 days prior to the first dose of TAB004 or, provided documentable, 5 half lives whichever is shorter, except for lymphoma in which the exclusionary period is 2 weeks for immune checkpoint inhibitors only.
• 4. Current or prior use of immunosuppressive medication within 2 weeks prior to the first dose of TAB004, with the exception of intranasal and inhaled corticosteroids or systemic corticosteroids not to exceed 10 mg/day of prednisone or equivalent.
• 5. Prior exposure to anti-BTLA, or anti-HVEM antibodies for subjects enrolled into Part A and B only; prior treatment with anti-PD-1 or anti-PDL-1is allowed,including toripalimab for all subjects.
• 6. Prior allogeneic bone marrow transplantation or prior solid organ transplantation.
• 7. Subjects with another malignancy, or history or other malignancy within 3 years that is not expected to relapse. Subjects with non-melanomatous skin cancer or cervical cancer that has been curatively surgically resected are eligible.
• 8. Major surgery (as defined by the investigator) within 28 days prior to first dose of TAB004 or has not recovered to at least Grade 1 from adverse effects from such procedure, or anticipation of the need for major surgery during study treatment.
• 9. Unresolved toxicities from prior anticancer therapy, defined as having not resolved to baseline or to NCI-CTCAE v5.0 Grade 0 or 1, or to levels dictated in the inclusion/exclusion criteria with the exception of neuropathies that are stable or improving and alopecia. Subjects with irreversible toxicity that is not reasonably expected to be exacerbated by TAB004 may be included (e.g., hearing loss) after consultation with the medical monitor.
• 10. Active or prior documented autoimmune disease, such as but not limited to systemic lupus erythematosus, multiple sclerosis, inflammatory bowel diseases, rheumatoid arthritis, autoimmune hepatitis, systemic sclerosis, autoimmune vasculitis, autoimmune neuropathies or type 1 insulin-dependent diabetes mellitus. Note: Subjects with the following are not excluded: vitiligo; alopecia; Grave's disease not requiring systemic treatment other than thyroid hormone replacement (within the past 2 years) psoriasis not requiring systemic treatment; controlled celiac disease; subjects with a history of autoimmune hypothyroidism requiring only thyroid hormone replacement therapy; And type 2 diabetes, provided that it is adequately controlled.
• 11. Clinically significant (intracranial, gastrointestinal) bleeding within 2 weeks prior to screening.
• 12. Known history of tuberculosis.
• 13. Subjects with history of or current drug-induced interstitial lung disease or pneumonitis ≥ Grade 2.
• 14. Subjects who have discontinued prior immune therapy due to immune mediated adverse reaction(s).
• 15. Subjects who are known to be human immunodeficiency virus positive.
• 16. Subjects with evidence of hepatitis B or C virus infection, unless their hepatitis is considered to have been cured. (Note that subjects with prior hepatitis B virus infection must have HBV viral load < 100 IU/mL before study enrollment, and must be treated according to local standards; hepatitis C virus infection must have, before study enrollment, no detectable viral load and must be treated according to local standards).
• 17. Active or prior documented inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis). Infection-related bowel inflammation, such as Clostridium difficile colitis, is not excluded provided that it has been fully resolved for ≥ 6 weeks.
• 18. History of anaphylaxis, or eczema that cannot be controlled with topical corticosteroids asthma.
• 19. Adult asthma that is moderate or severe, or asthma that has required: hospitalization in the last 2 years; invasive mechanical ventilation ever; systemic corticosteroids in the past year for exacerbations; or more than two short acting beta agonist (e.g., albuterol) administrations per month for breakthrough asthma symptoms. A history of childhood asthma or the presence of mild adult asthma that at baseline has symptoms that can be controlled well with inhaled corticosteroids or short acting beta agonists will not be excluded.
• 20. Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure according to New York Heart Association Functional Classification ≥ 3, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, active peptic ulcer disease or gastritis, or psychiatric illness/social situations that would limit compliance with study requirements, substantially increase risk of incurring adverse events from TAB004, or compromise the ability of the subject to give written informed consent.
• 21. Untreated central nervous system and leptomeningeal metastases or requiring ongoing treatment for these metastases, including corticosteroids. Subjects with previously treated brain metastases may participate provided they are clinically stable for at least 28 days prior to study entry, have no evidence of new or enlarging metastases, and are off steroids.
• 22. Receipt of live attenuated vaccination within 28 days prior to study entry or within 30 days of receiving TAB004.
• 23. Any condition or treatment or diagnostic test that, in the opinion of the investigator or sponsor, would interfere with evaluation of TAB004 or interpretation of subject safety or study results.
• 24. Pregnancy or breast feeding women.

[CLOVER-1] All Patients
• Histologically or cytologically confirmed MM; Patients with primary or secondary CNSL may be enrolled.
• ECOG performance status of 0 to 2
• 18 years of age or older
• Life expectancy of at least 6 months
• Platelets ≥ 75,000/µL (if full-dose anticoagulation therapy is used, platelets ≥ 100,000/µL are required)
• WBC count ≥ 3000/µL
• Absolute neutrophil count ≥ 1500/µL
• Hemoglobin ≥ 9 g/dL (last transfusion, if any, must be at least 1 week prior to study registration, and no transfusions are allowed between registration and dosing)
• Estimated glomerular filtration rate ≥ 30 mL/min/1.73 m2
• Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) ≤ 2.5 × upper limit of normal (ULN)
• Bilirubin < 1.5 × ULN
• International normalized ratio (INR) < 2.5
• If patient is on full-dose anticoagulation therapy, the anticoagulation therapy must be reversible and reversal of the anticoagulation therapy must not be life-threatening, as judged by the Investigator
• Patients who have undergone stem cell transplant must be at least 100 days from transplant Patients with Multiple Myeloma
• At least 5 prior regimens, which must include at least 1 approved proteasome inhibitor (bortezomib, carfilzomib, or ixazomib), at least 1 approved immunomodulatory agent (thalidomide, lenalidomide, or pomalidomide), and at least 1 approved monoclonal antibody (e.g., daratumumab or elotuzumab) with or without maintenance therapy, unless patients are intolerable to such agents or ineligible to receive such agents.
• At least triple-class refractory (refractory to a proteasome inhibitor, immunomodulatory agent, and a monoclonal antibody)
• Progressive disease defined by any of the following:
• 25% increase in serum M-protein from the lowest response value during (or after) last therapy and/or absolute increase in serum M-protein of ≥ 0.5 g/dL
• 25% increase in urine M-protein from the lowest response value during (or after) last therapy and/or absolute increase in urine M-protein of ≥ 200 mg/24 h
• 25% increase in bone marrow plasma cell percentage from the lowest response value during (or after) last therapy. Absolute bone marrow plasma cell percentage must be ≥ 10% unless prior CR when absolute bone marrow plasma cell percentage must be ≥ 5%.
• 25% increase in serum FLC level from the lowest response value during (or after) last therapy; the absolute increase must be > 10 mg/dL
• New onset hypercalcemia > 11.5 mg/dL
• Failure to obtain a partial response or better to current treatment, or cannot further improve their response to current treatment
• Appearance of new extramedullary disease
• Measurable disease defined by any of the following:
• Serum M-protein > 0.5 g/dL
• Urine M-protein > 200 mg/24 h
• Serum FLC assay: Involved FLC level ≥ 10 mg/dL provided serum FLC ratio is abnormal. [CLOSED] Patients with Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, Lymphoplasmacytic Lymphoma/Waldenstom Macroglobulinemia, or Marginal Zone Lymphoma
• Prior treatment with at least 2 prior regimens, which may include chemotherapy, an approved anti-CD20 antibody with or without maintenance therapy, and an approved targeted agent, unless patients are ineligible to receive such agents
• Patients with Helicobacter pylori+ mucosa-associated lymphoid tissue lymphoma must have received 1 prior antibiotic regimen for H pylori
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Additional parameters (e.g., measurable IgM for patients with Lymphoplasmacytic Lymphoma) may be allowed if they meet current NCCN guidelines for symptomatic disease. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. [CLOSED] Patients with Mantle Cell Lymphoma
• Prior treatment with at least 1 prior regimen
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. [CLOSED] Patients with Diffuse Large B-Cell Lymphoma
• Relapsed or refractory to combination chemotherapy for DLBCL that contains rituximab and an anthracycline; or is intolerable to such agents. Relapsed disease is defined as either recurrence of disease after a CR or PD after achieving a partial response (PR) or SD. Refractory disease is defined as failure to achieve at least SD with any 1 line of therapy or with PD ≤ 3 months of the most recent chemotherapy regimen.
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. Patients with CNS Lymphoma
• Must have biopsy-proven disease and must have received at least one prior intervention for their disease.
• Must be at least two weeks from CNS biopsy before administration of CLR 131.
• Must have at least one lesion with enhancement on brain imaging.
• Stable (or decreasing) dose of corticosteroids or anti-convulsant medication for at least 7 days prior to dosing [CLOVER-1]
• Ongoing Grade 2 or greater toxicities due to previous therapies. Stable, tolerable Grade 2 AEs (eg, neuropathy) may be allowed.
• Prior external-beam RT resulting in greater than 20% of total bone marrow receiving greater than 20 Gy.
• Prior total body or hemi-body irradiation. Patients who have received prior low-dose total body or hemi-body irradiation may be allowed on a case-by-case basis after discussion with Sponsor (considerations may include factors such as time since irradiation, total lifetime accumulated dose, etc.)
• Extradural tumor in contact with the spinal cord or tumor located where swelling in response to therapy may impinge upon the spinal cord
• For patients with CLL/SLL, LPL, or MZL, transformation to a more aggressive form of NHL
• Ongoing chronic immunosuppressive therapy
• Clinically significant bleeding event within prior 6 months
• Ongoing anti-platelet therapy (except low-dose aspirin [eg, 81 mg daily] for cardioprotection)
• Anti-cancer therapy within two weeks of initial CLR 131 infusion. Low dose dexamethasone for symptom management is allowed
• Radiation therapy, chemotherapy, immunotherapy, or investigational therapy within 2 weeks of eligibility-defining bone marrow biopsy.
• For patients with primary or secondary CNSL, active bleeding in the tumor bed and/or uncontrolled seizure activity [CLOVER-WaM] Inclusion Criteria
• Histologically or cytologically confirmed WM. Patients with a diagnosis of LPL may be enrolled with prior Sponsor approval.
• Patient has an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 2 (Appendix C)
• Patient is 18 years of age or older
• Life expectancy of at least 6 months
• Received at least two prior lines of therapy for WM
• Measurable IgM (above upper limit of normal) OR at least one measurable nodal lesion with longest diameter > 15 mm or one measurable extranodal lesion (e.g., hepatic nodule) with longest diameter > 10 mm [CLOVER-WaM] Exclusion Criteria
• Ongoing Grade 2 or greater toxicities due to previous therapies, excluding alopecia.
• Prior external-beam RT resulting in greater than 20% of total bone marrow receiving greater than 20 Gy.
• Prior total body or hemi-body irradiation. Patients who have received prior low-dose total body or hemi-body irradiation may be allowed on a case-by-case basis after discussion with Sponsor (considerations may include factors such as time since irradiation, total lifetime accumulated dose, etc.)
• Patients with second malignancies in addition to WM, if the second malignancy has required therapy in the last 2 years or is not in remission; exceptions to this criterion include successfully treated non-metastatic basal cell or squamous cell skin carcinoma, or prostate cancer that does not require therapy
• Anti-cancer therapy within two weeks of initial CLR 131 infusion.
• Need for acute treatment of WM (e.g., those with hyperviscosity)

• Between 6 months and <18 years of age (or between 3 years and <18 years of age for rrcHL participants) on day of signing informed consent/assent (the first 3 participants dosed in Part 1 are to be ≥ 6 years of age)
• Histologically- or cytologically-documented, locally-advanced, or metastatic solid malignancy or lymphoma that is incurable and has failed prior standard therapy, or for which no standard therapy exists, or for which no standard therapy is considered appropriate
• Any number of prior treatment regimens
• Tissue (or lymph node biopsy for rrcHL participants) available from an archival tissue sample or, if appropriate, a newly obtained core or excisional biopsy of a tumor lesion not previously irradiated
• Advanced melanoma or PD-L1-positive advanced, relapsed, or refractory solid tumor or lymphoma
• Measurable disease based on RECIST 1.1 (Or based on IWG [Cheson, 2007] [i.e., measurement must be >15 mm in longest diameter or >10 mm in short axis] for rrcHL participants)
• Participants with neuroblastoma with only metaiodobenzylguanidine (MIBG)-positive evaluable disease may be enrolled
• Lansky Play Scale ≥50 for participants from 6 months up to and including 16 years of age; or Karnofsky score ≥50 for participants >16 years of age
• Adequate organ function
• Female participants of childbearing potential should have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of study medication
• Female participants of childbearing potential must be willing to use 2 methods of contraception or be surgically sterile, or abstain from heterosexual activity for the course of the study through 120 days after the last dose of study medication
• Male participants of reproductive potential must agree to use an adequate method of contraception starting with the first dose of study medication through 120 days after the last dose of study medication
• Currently participating and receiving study therapy in, or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the date of allocation/randomization
• Diagnosis of immunodeficiency or receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the date of allocation/randomization
• Prior systemic anti-cancer therapy including investigational agent within 2 weeks prior to study Day 1 or not recovered from adverse events due to a previously administered agent
• Prior radiotherapy within 2 weeks of start of study treatment
• Known additional malignancy that is progressing or requires active treatment with the exception of basal cell carcinoma of the skin, squamous cell carcinoma of the skin or carcinoma in situ (eg, breast carcinoma, cervical carcinoma in situ) with potentially curative therapy, or in situ cervical cancer
• Known active central nervous system (CNS) metastases and/or carcinomatous meningitis
• Tumor(s) involving the brain stem
• Severe hypersensitivity (≥ Grade 3) to pembrolizumab and/or any of its excipients
• Active autoimmune disease that has required systemic treatment in past 2 years; replacement therapy (such as thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is acceptable
• Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis.
• Active infection requiring systemic therapy
• Pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial through 120 days after the last dose of study medication
• Prior therapy with an anti-programmed cell death (PD)-1, anti-PD-ligand 1 (anti-PD-L1), anti-PD-L2 agent, or any agent directed to another stimulatory or inhibitory T-cell receptor (eg, cytotoxic lymphocyte associated protein-4 [CTLA-4], OX-40, CD137)
• Human immunodeficiency virus (HIV)
• Hepatitis B or C
• Known history of active tuberculosis (TB; Bacillus tuberculosis)
• Received a live vaccine within 30 days of planned start of study medication
• Has undergone solid organ transplant at any time, or prior allogeneic hematopoietic stem cell transplantation within the last 5 years. (Participants who have had an allogeneic hematopoietic transplant >5 years ago are eligible as long as there are no symptoms of Graft Versus Host Disease [GVHD].)
• History or current evidence of any condition, therapy, or laboratory abnormality, or known severe hypersensitivity to any component or analog of the trial treatment, that might confound the results of the trial, or interfere with the participant's participation for the full duration of the study
• Known psychiatric or substance abuse disorders that would interfere with the requirements of the study

• Histologically proven primary CNS diffuse large b-cell lymphoma confirmed by one of the following:
• Brain biopsy or resection
• Cerebrospinal fluid
• Vitreous fluid
• At least one measurable, contrast-enhancing lesion in the brain (>= 1 cm in length), CSF or vitreous (intraocular lymphoma)
• No prior organ transplantation to exclude post-transplant lymphoproliferative disorders
• No prior chemotherapy or radiation therapy for lymphoma
• No prior allogeneic stem cell transplantation
• Use of systemic corticosteroids (dexamethasone up to 24 mg/day or equivalent) for disease control or improvement of performance status to be tapered as fast as clinically safe after initiation of therapy is permissible
• Not pregnant and not nursing, because this study involves an investigational agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and newborn are unknown and an agent that has known genotoxic, mutagenic and teratogenic effects. Therefore, female of childbearing potential (FCBP) must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin [HCG]) =< 7 days prior to registration
• Karnofsky performance scale (KPS) >= 40 (>= 50 for patients older than 60 unless related to lymphoma on investigator's opinion)
• Absolute neutrophil count (ANC) >= 1,500/mm^3
• Platelet count >= 100,000/mm^3
• Calculated creatinine clearance >= 50 mL/min by Cockcroft-Gault formula
• Total Bilirubin =< 1.5 x upper limit of normal (ULN)
• Aspartate aminotransferase (AST) / alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN)
• No evidence of non-Hodgkin's lymphoma (NHL) outside CNS
• No prior history of NHL
• No history of autoimmune disorder. Patients with active autoimmune disease or history of autoimmune disease that might recur, which may affect vital organ function or require immune suppressive treatment including systemic corticosteroids, should be excluded. These include but are not limited to patients with a history of immune related neurologic disease, multiple sclerosis, autoimmune (demyelinating) neuropathy, Guillain-Barre syndrome, myasthenia gravis; systemic autoimmune disease such as Systemic lupus erythematosus (SLE), connective tissue diseases, scleroderma, inflammatory bowel disease (IBD), Crohn's, ulcerative colitis, hepatitis; and patients with a history of toxic epidermal necrolysis (TEN), Stevens-Johnson syndrome, or phospholipid syndrome should be excluded because of the risk of recurrence or exacerbation of disease. Patients with vitiligo, endocrine deficiencies including thyroiditis managed with replacement hormones including physiologic corticosteroids are eligible. Patients with rheumatoid arthritis and other arthropathies, Sjogren's syndrome and psoriasis controlled with topical medication and patients with positive serology, such as antinuclear antibodies (ANA), anti-thyroid antibodies should be evaluated for the presence of target organ involvement and potential need for systemic treatment but should otherwise be eligible
• Patients are permitted to enroll if they have vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger (precipitating event)
• Patients should be excluded if they have a condition requiring systemic treatment with either corticosteroids (except short course of systemic corticosteroids for disease control or improvement of performance status or other immunosuppressive medications within 14 days prior to registration. Inhaled or topical steroids and adrenal replacement doses < 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease. Patients are permitted to use topical, ocular, intra-articular, intranasal, and inhalational corticosteroids (with minimal systemic absorption). Physiologic replacement doses of systemic corticosteroids are permitted, even if < 10 mg/day prednisone equivalents. A brief course of corticosteroids for prophylaxis (e.g., contrast dye allergy) or for treatment of non-autoimmune conditions (e.g., delayed-type hypersensitivity reaction caused by contact allergen) is permitted
• Patients who have had evidence of active or acute diverticulitis, intra-abdominal abscess, gastrointestinal (GI) obstruction and abdominal carcinomatosis which are known risk factors for bowel perforation should be evaluated for the potential need for additional treatment before coming on study
• No prior or concurrent malignancies with exception of surgically cured carcinoma in situ (CIS) of the uterus, carcinoma of the skin without evidence of disease for >= 5 years
• No concurrent malignancy requiring active therapy
• No untreated hepatitis C virus (HCV) infection with detectable HCV viral load
• No untreated chronic hepatitis B virus (HBV) infection with detectable HBV viral load
• No untreated human immunodeficiency virus (HIV) infection or with detectable viral load or with CD4+T-cell count of less than 500/mm^3
• No history of HIV infection and evidence of Epstein Barr virus (EBV)-related primary central nervous system lymphoma (PCNSL)
• Inability to tolerate anticoagulation with acetylsalicylic acid, warfarin, or direct oral anticoagulants
• No other investigational agent
• No history of severe hypersensitivity reaction to any monoclonal antibody
• No history of allergic reactions attributed to compounds of similar chemical or biologic composition to or other agents used in study
• Sulfonamide drugs, trimethoprim, salicylates, nonsteroidal anti-inflammatory drugs, penicillin, vitamin C, ciprofloxacin, and proton pump inhibitors should be held at least 48 hours prior to methotrexate administration

Age
• Patients must be ≥ 1 and ≤21 years of age at the time of study enrollment. Diagnosis
• Relapsed and/or refractory hematologic malignancy (including, but not limited to, acute lymphoblastic leukemia, acute myeloid leukemia, myelodysplastic syndrome, mixed phenotype acute leukemia, acute undifferentiated leukemia, blastic plasmacytoid dendritic cell neoplasm, Hodgkin lymphoma, and non-Hodgkin lymphoma).
• Tumor cells must demonstrate surface expression of CD123 at the time of enrollment by flow cytometry or immunohistochemistry, as defined by the local institution. Disease Status: Monotherapy, Part 1
• Second or greater relapse; or
• Refractory after 2 or more chemotherapy cycles; or
• First relapse after primary chemotherapy-refractory disease; or
• BPDCN in first relapse or refractory after 1 or more chemotherapy cycles Combination therapy, Part 2
• First or greater relapse; or
• Refractory after 2 or more chemotherapy cycles; or
• BPDCN in first relapse or refractory after 1 or more chemotherapy cycles For relapsed/refractory leukemia, patients must have:
• >5% blasts in the bone marrow aspirate by morphology or flow cytometry
• Patients with 1%
•5% blasts are eligible for Part 2, Cohort C (only), if A single bone marrow sample with flow cytometry and at least one other test (e.g. karyotype, FISH, PCR, or NGS) shows ≥ 1% leukemic blasts and/or flow cytometry demonstrates a stable or rising level of disease on two serial bone marrows. For relapsed/refractory non-Hodgkin or Hodgkin lymphoma, patients must have:
• Histologic verification of relapse
• Measurable disease documented by radiographic criteria or bone marrow
• Patients in Part 1 may have sites of non-CNS extramedullary disease, but no CNS disease. Patients in Part 2 may have CNS disease and/or other non-CNS extramedullary disease. No cranial irradiation is allowed during the protocol therapy.
• Patients with Down syndrome are eligible. Performance Level
• Karnofsky > 50% for patients > 16 years of age and Lansky > 50% for patients ≤ 16 years of age (See Appendix I for Performance Scales). Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score. Prior Therapy
• Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy, defined as resolution of all such toxicities to ≤ Grade 2 or lower per the inclusion/exclusion criteria. Myelosuppressive chemotherapy: Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study. At least 14 day must have elapsed since the completion of myelosuppressive therapy. However, individuals may receive any of the following medications within 14 days without a "wash-out period":
• Hydroxyurea: Hydroxyurea can be initiated and/or continued for up to 24 hours prior to the start of protocol therapy.
• "Maintenance-style" therapy: therapy including vincristine (dosed a maximum of one-time weekly), oral 6-mercaptopurine, oral methotrexate (dosed a maximum of one-time weekly), intrathecal therapy (dosed a maximum of one-time weekly) and/or dexamethasone (dosed at ≤3 mg/m2/dose twice daily) or prednisone (dosed at ≤20 mg/m2/dose twice daily) can be continued for up to 24 hours prior to entering the study.
• Hematopoietic stem cell transplant: Patients who have experienced their relapse after a HSCT are eligible, provided they have no evidence of acute or chronic Graft-versus-Host Disease (GVHD) and are at least 100 days post-transplant at the time of enrollment.
• Hematopoietic growth factors: It must have been at least 7 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 agent): At least 7 days after the last dose of a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. The duration of this interval must be discussed with the study chair.
• Monoclonal antibodies: Maximum of 3 half-lives of the antibody or 21 days (whichever is shorter) must have elapsed after the last dose of monoclonal antibody.
• Immunotherapy: At least 30 days from last infusion of chimeric antigen receptor T cell (CART) therapy or tumor vaccine.
• XRT: Craniospinal XRT is prohibited during protocol therapy. No washout period is necessary for radiation given to any extramedullary site other than CNS chloromas; ≥ 90 days must have elapsed if prior TBI or craniospinal XRT.
• Patients that have received other non-tagraxofusp CD123 targeting agents are eligible. Patients that have previously received tagraxofusp are not eligible. Organ Function Requirements Adequate Bone Marrow Function Defined as:
• Patients should not be known to be refractory to red blood cell or platelet transfusions.
• Blood counts are not required to be normal prior to enrollment on trial. However, platelet count must be ≥20,000/mm3 to initiate therapy (may receive platelet transfusions). Adequate Renal Function Defined as:
• Patient must have a calculated creatinine clearance or radioisotope GFR ≥ 70ml/min/1.73m2 OR a normal serum creatinine based on age/gender in the chart below: Maximum Serum Creatinine (mg/dL):
• 1 to < 2 years old
•Male: 0.6, Female: 0.6
• 2 to < 6 years old
•Male:0.8, Female: 0.8
• 6 to < 10 years old
•Male: 1, Female: 1
• 10 to < 13 years old
•Male: 1.2, Female: 1.2
• 13 to < 16 years old
•Male: 1.5, Female: 1.4
• ≥ 16 years old
•Male: 1.7, Female: 1.4 The threshold creatinine values in this Table were derived from the Schwartz formula for estimating GFR (Schwartz et al. J. Peds, 106:522, 1985) utilizing child length and stature data published by the CDC. Adequate Liver Function Defined as:
• Total bilirubin (sum of conjugated + unconjugated) ≤ 1.5 x institutional upper limit of normal for age
• SGPT (ALT) and SGOT (AST) must be less than 3x institutional upper limit of normal.
• Serum albumin ≥3.2 g/dL (albumin infusion independent). Adequate Cardiac Function Defined as:
• Shortening fraction of ≥27% by echocardiogram, or
• Ejection fraction of ≥ 50% by gated radionuclide study/echocardiogram. Adequate Pulmonary Function Defined as:
• Pulse oximetry > 94% on room air (> 90% if at high altitude)
• No evidence of dyspnea at rest and no exercise intolerance. Reproductive Function
• Female patients of childbearing potential must have a negative urine or serum pregnancy test confirmed within 2 weeks prior to enrollment.
• Female patients with infants must agree not to breastfeed their infants while on this study.
• Male and female patients of child-bearing potential must agree to use an effective method of contraception approved by the investigator during the study and for 12 weeks after the last dose of tagraxofusp. Exclusion Criteria Disease Status:
• Patients with CNS disease are not eligible for Part 1.
• Patients with isolated CNS disease are not eligible for Part 1 or Part 2.
• Patients with isolated non-CNS disease are eligible for Part 1 and Part 2. Concomitant Medications
• Corticosteroids
•Patients receiving corticosteroids for disease control who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are not eligible.
• Investigational Drugs
•Patients who are currently receiving another investigational drug are not eligible. The definition of "investigational" for use in this protocol means any drug that is not licensed by the FDA, Health Canada or the Therapeutic Goods Administration to be sold in the countries they govern. (United States, Canada and Australia)
• Anti-cancer Agents
•Patients who are currently receiving or may receive while on therapy, other anti-cancer agents, radiation therapy or immunotherapy are not eligible [except hydroxyurea, which may be continued until 24 hours prior to start of protocol therapy]. Intrathecal chemotherapy (at the discretion of the primary oncologist) may be given up to one week prior to the initiation of study treatment (day 1 therapy).
• Anti-GVHD or agents to prevent organ rejection post-transplant
•Patients who are receiving cyclosporine, tacrolimus or other agents to prevent either graft-versus-host disease post bone marrow transplant or organ rejection post-transplant are not eligible for this trial. At least 4 weeks must have elapsed after the last dose of GVHD meds. Infection Criteria
•Patients are excluded if they have:
• Positive blood culture within 48 hours of study enrollment;
• Fever above 38.2 within 48 hours of study enrollment with clinical signs of infection. Fever that is determined to be due to tumor burden is allowed if patients have documented negative blood cultures for at least 48 hours prior to enrollment and no concurrent signs or symptoms of active infection or hemodynamic instability.
• A positive fungal culture within 30 days of study enrollment.
• Active fungal, viral, bacterial, or protozoal infection requiring IV treatment. Chronic prophylaxis therapy to prevent infections is allowed.
• Patients will be excluded if they have a known allergy to any of the drugs used in the study.
• Patients will be excluded if they have significant concurrent disease, illness, psychiatric disorder or social issue that would compromise patient safety or compliance with the protocol treatment or procedures, interfere with consent, study participation, follow up, or interpretation of study results.
• Patients with DNA fragility syndromes (such as Fanconi anemia, Bloom syndrome) are excluded.

• Age >= 2 years
• Patient must have histologically confirmed primary mediastinal B-cell lymphoma (PMBCL) as defined by World Health Organization (WHO) criteria
• Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 or ECOG performance status of 3 if poor performance is related to lymphoma
• Children's Oncology Group (COG) Institutions: Use Karnofsky for patients >= 17 and < 18 years of age and Lansky for patients < 17 years of age
• Adults (age 18 or older): Creatinine clearance >= 30 mL/min, as estimated by the Cockcroft and Gault formula. The creatinine value used in the calculation must have been obtained within 28 days prior to registration. Estimated creatinine clearance is based on actual body weight
• Pediatric Patients (age < 18 years): The following must have been obtained within 14 days prior to registration:
• Measured or calculated (based on institutional standard) creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 ml/min/1.73 m^2, or
• Serum creatinine =< 1.5 x institutional upper limit of normal (IULN), or a serum creatinine based on age/gender as follows:
• Age : 2 to < 6 year; Maximum serum creatinine (mg/dL): 0.8 (male; 0.8 (female)
• Age : 6 to < 10 years; Maximum serum creatinine (mg/dL): 1 (male); 1 (female)
• Age : 10 to < 13 years; Maximum serum creatinine (mg/dL): 1.2 (male); 1.2 (female)
• Age : 13 to < 16 years; Maximum serum creatinine (mg/dL): 1.5 (male); 1.4 (female)
• Age : >= 16 years to < 18 years; Maximum serum creatinine (mg/dL): 1.7 (male); 1.4 (female)
• Patients with abnormal liver function will be eligible to enroll if the lab abnormality is thought to be due to the lymphoma or Gilbert's syndrome
• Age >= 18 years: Ejection fraction of >= 50% by echocardiogram
• Age < 18 years: Shortening fraction of >= 27% by echocardiogram, or ejection fraction of >= 50% by radionuclide angiogram
• Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial
• 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
• 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
• Administration of prior anti-cancer therapy except as outlined below:
• A short course (=< 2 weeks) of corticosteroids for the relief of lymphoma-related symptoms
• A single course of COP (cyclophosphamide, vincristine, and prednisone)
• One cycle of chemo-immunotherapy including R-CHOP, DA-EPOCH-R, a pediatric mature B-cell non-Hodgkin lymphoma (B-NHL) induction therapy (such as ANHL1131), or intrathecal chemotherapy that has not started more than 21 days prior to enrollment
• Active ischemic heart disease or heart failure
• Active uncontrolled infection
• Central nervous system (CNS) involvement of lymphoma
• Previous cancer that required systemic chemotherapy and/or thoracic radiation. Other cancers will be permitted if in remission x 3 years
• Active autoimmune disease that has required systemic treatment (such as disease modifying agents, corticosteroids, or immunosuppressive agents) in the past 2 years. Replacement therapy such as thyroxine, insulin or physiologic corticosteroid for adrenal or pituitary insufficiency is not considered a form of systemic treatment
• In patients < 18 years of age hepatitis B serologies consistent with past or current infections
• Patients with severe hepatic impairment (Child-Pugh class C or serum total bilirubin > 5.0 mg/dL) unless thought to be due to lymphoma or Gilbert's syndrome
• 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
• Sexually active patients of reproductive potential who have not agreed to use a highly effective contraceptive method (failure rate of < 1% per year when used consistently and correctly) for the duration of their study participation
• Lactating females are not eligible unless they have agreed not to breastfeed their infants starting with the first dose of study therapy and for at least 6 months after the last dose of rituximab

• 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)

• Patients must be >= 1 year and < 22 years of age at the time of enrollment
• Patients must have B-ALL, or previously diagnosed B lymphoblastic lymphoma (B-LL), with >= 5% (M2 or M3) bone marrow blasts with or without extramedullary disease
• NOTE: Relapsed patients previously diagnosed with B-lymphoblastic lymphoma (B-LL) are eligible if they have an M2 or M3 marrow at the time of enrollment on this study
• Patients with ALL or B-LL who have M2 morphology must have local confirmatory testing showing >= 5% blasts by flow cytometry, fluorescence in situ hybridization (FISH) testing or other molecular method
• Leukemic blasts must demonstrate surface expression of CD22 at the time of relapse by local/institutional flow cytometry of a bone marrow aspirate sample; (assessment of CD22 using a bright fluorophore such as phycoerythrin [PE] is strongly recommended)
• In the case of an inadequate aspirate sample (dry tap) or if bone marrow aspirate is unable to be performed due to patient clinical status, flow cytometry of peripheral blood specimen may be substituted if the patient has at least 1,000/uL circulating blasts; alternatively, CD22 expression may be documented by immunohistochemistry of a bone marrow biopsy specimen
• Patients with one of the following:
• Second or greater relapse;
• Primary refractory disease with at least 2 prior induction attempts;
• First relapse refractory to at least one prior re-induction attempt
• Any relapse after HSCT (Cohort 1 ONLY) Patients with Down syndrome are eligible ONLY for Cohort 1 with:
• Any of above disease status, OR
• First relapse with no prior re-induction attempt NOTE: Patients with Down syndrome or prior HSCT are NOT eligible for Cohort 2 combination therapy
• Patients with Philadelphia chromosome (Ph)+ ALL must have had two prior therapy attempts including two different tyrosine kinase inhibitors (TKIs)
• Patients must have fully recovered from the acute toxic effects of all prior anti-cancer therapy, defined as resolution of all such toxicities to =< grade 2 or lower per the inclusion/exclusion criteria prior to entering this study. Apply to Cohort 2:
• Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive. For agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned Research Coordinator prior to enrollment.
• A waiting period prior to enrollment is not required for patients receiving standard cytotoxic maintenance chemotherapy (i.e., corticosteroid, vincristine, 6MP, and/or methotrexate).
• A waiting period is not required for patients receiving a single dose of intrathecal methotrexate, hydrocortisone, and/or cytarabine within 7 days prior to enrollment
• >= 14 days must have elapsed after the completion of other cytotoxic therapy, with the exception of hydroxyurea, for patients not receiving standard maintenance therapy. For patients who previously received calaspargase pegol, >= 21 days must have elapsed after the last dose. Additionally, patients must have fully recovered from all acute toxic effects of prior therapy.
• Note: Cytoreduction with hydroxyurea must be discontinued >= 24 hours prior to the start of protocol therapy.
• Anti-cancer agents not known to be myelosuppressive (e.g., not associated with reduced platelet or absolute neutrophil count [ANC] counts): >= 7 days after the last dose of agent. For agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned research coordinator prior to enrollment.
• Anti-cancer agents that are antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1. There is an exception for blinatumomab infusions, for which patients must have been off for at least 3 days and all drug related toxicity must have resolved to grade 2 or lower as outlined in the inclusion/exclusion criteria.
• Corticosteroids: If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid. A waiting period prior to enrollment is not required for patients receiving corticosteroid for leukemia therapy/cytoreduction.
• Radiotherapy: >= 2 weeks must have elapsed since local palliative radiation therapy (XRT) (small port); >= 3 months must have elapsed if prior cranial or craniospinal XRT was received, if >= 50% of the pelvis was irradiated, or if total body irradiation (TBI) was received; >= 6 weeks must have elapsed if other substantial bone marrow irradiation was given.
• Stem cell transplant or rescue without TBI: For Cohort 1, at least 90 days must have elapsed since stem cell transplant and at least 30 days from donor lymphocyte infusion. Patient must have had no more than one previous HSCT and currently have no evidence of active graft vs. host disease (GVHD). For Cohort 2, no prior HSCT is allowed.
• Chimeric antigen receptor (CAR) T cell therapy: At least 30 days must have elapsed from the last CAR-T cell infusion
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2; use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 or
• A serum creatinine based on age/gender as follows:
• 1 to < 2 years: maximum serum creatinine 0.6 mg/dL (both male and female)
• 2 to < 6 years: maximum serum creatinine 0.8 mg/dL (both male and female)
• 6 to < 10 years: maximum serum creatinine 1 mg/dL (both male and female)
• 10 to < 13 years: maximum serum creatinine 1.2 mg/dL (both male and female)
• 13 to < 16 years: maximum serum creatinine 1.5 mg/dL (male), 1.4 mg/dL (female)
• >= 16 years: maximum serum creatinine 1.7 mg/dL (male), 1.4 mg/dL (female)
• Direct bilirubin =< 1.5 x upper limit of normal (ULN) for age, and
• Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =< 5 x ULN for age; for the purpose of this study, the ULN for ALT will be 45 U/L
• Patients with any prior history of SOS irrespective of severity
• Patients with isolated central nervous system (CNS), testicular, or any other extramedullary site of relapse
• Patients who have been previously treated with inotuzumab ozogamicin
• Patients who have previously received HSCT (Cohort 2 only)
• Patients with Down syndrome (Cohort 2 only)
• History of allergic reaction attributed to compounds of similar or biologic composition to inotuzumab ozogamicin or other agents in the study
• Note: Patients with history of allergy to pegaspargase/calaspargase pegol are eligible for enrollment on Cohort 2 (dose levels 1 and -1) if Erwinia formulation of asparaginase can be obtained
• If Cohort 2 is enrolling at dose level -2, then patients who cannot receive asparaginase due to prior allergy, toxicity, or lack of access may enroll
• NOTE: patients on AALL1621 are not eligible to co-enroll on AALL1931
• Patients with active optic nerve and/or retinal involvement are not eligible; patients who are presenting with visual disturbances should have an ophthalmologic exam and, if indicated, a magnetic resonance imaging (MRI) to assess optic nerve or retinal involvement
• Patients who are currently receiving another investigational drug
• Patients who are currently receiving or plan to receive other anti-cancer agents (except hydroxyurea, which may be continued until 24 hours prior to start of protocol therapy, and intrathecal chemotherapy)
• Anti-GVHD or agents to prevent organ rejection post-transplant; patients who are receiving cyclosporine, tacrolimus, or other agents to prevent either graft-versus-host disease post bone marrow transplant or organ rejection post-transplant are not eligible for this trial; at least 3 half-lives must have elapsed after the last dose of GVHD or anti-rejection medications
• Patients who are currently receiving or plan to receive corticosteroids except as described below
• Systemic corticosteroids may be administered for cytoreduction up to 24 hours prior to the start of protocol therapy, (Cohort 1 only) for all patients, corticosteroids may be administered as a premedication for inotuzumab ozogamicin and as treatment for allergic reactions or for physiologic replacement/stress dosing of hydrocortisone for documented adrenal insufficiency; corticosteroids are not allowed for other indications
• Patients with known human immunodeficiency virus (HIV), hepatitis B or C infections; testing to prove negative status is not required for enrollment unless it is deemed necessary for usual medical care of the patient
• Patients who have an active uncontrolled infection defined as:
• Positive bacterial blood culture within 48 hours of study enrollment;
• Fever above 38.2 degree Celsius (C) within 48 hours of study enrollment with clinical signs of infection; fever that is determined to be due to tumor burden is allowed if patients have documented negative blood cultures for at least 48 hours prior to enrollment and no concurrent signs or symptoms of active infection or hemodynamic instability
• A positive fungal culture within 30 days of study enrollment or active therapy for presumed invasive fungal infection
• Patients may be receiving IV or oral antibiotics to complete a course of therapy for a prior documented infection as long as cultures have been negative for at least 48 hours and signs or symptoms of active infection have resolved; for patients with clostridium (C.) difficile diarrhea, at least 72 hours of antibacterial therapy must have elapsed and stools must have normalized to baseline
• Active viral or protozoal infection requiring IV treatment
• Patients known to have one of the following concomitant genetic syndromes: Bloom syndrome, ataxia-telangiectasia, Fanconi anemia, Kostmann syndrome, Schwachman (Schwachman-Diamond-Blackfan) syndrome or any other known bone marrow failure syndrome
• There have been no human studies of inotuzumab ozogamicin in pregnant women and no reports of exposure in utero; based on nonclinical safety studies, inotuzumab ozogamicin has the potential to impair human male and female fertility and to adversely affect human embryo fetal development; women of childbearing potential should be advised to avoid becoming pregnant while receiving inotuzumab ozogamicin; there is no information regarding the presence of inotuzumab ozogamicin in human milk, the effects on the breast-fed infant, or the effects on milk production; because of the potential for adverse reactions in breast-fed infants, women should not breast-feed during treatment with inotuzumab ozogamicin and for at least 2 months after the final dose
• Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained within 7 days prior to enrollment
• Female patients who are sexually active and of reproductive potential are not eligible unless they agree to use an effective contraceptive method for the duration of their study participation and for 8 months after the last dose of inotuzumab ozogamicin
• Men with female partners of childbearing potential should use effective contraception during treatment with inotuzumab ozogamicin and for at least 5 months after the last dose of inotuzumab ozogamicin
• Lactating females are not eligible unless they agree not to breastfeed their infants

Inclusion Criteria 1. Patients aged ≥ 18 years at time of screening 2. Written informed consent by the patient or the patients' legally authorized representative prior to screening 3. Patients with histologically or cytologically confirmed diagnosis of one of the following subtypes of T-cell lymphoma: 1. Peripheral T-cell lymphoma (PTCL): Angioimmunoblastic T-cell lymphoma (AITL), PTCL, not otherwise specified (PTCL-NOS), nodal PTCL with T-follicular helper (TFH) and follicular T-cell lymphoma (FTCL) 2. Cutaneous T-cell lymphoma (CTCL) (stages II-B, III, and IV): Mycosis fungoides (MF) and Sezary syndrome (SS) 4. Patients must have received at least 2 prior systemic therapies. 5. Patients with PTCL must have at least 1 measurable lesion 6. Patients with CTCL must have assessable disease by response criteria for CTCL (Olsen EA, 2011) 7. Eastern Cooperative Oncology Group Performance Status (ECOG PS) = 0-2 8. Life expectancy of at least 3 months 9. Adequate bone marrow, renal and hepatic functions 1. Patients with central nervous system (CNS) involvement 2. Patients with Adult T-cell leukemia/lymphoma (ATLL) 3. Prior allogeneic stem cell transplant 4. Prior treatment with ONO-4685, anti-PD-1, anti-PD-L1, anticytotoxic T lymphocyte associated protein 4 (CTLA-4) antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways 5. Patients with malignancies (other than T-cell lymphoma) except for completely resected basal cell carcinoma, stage I squamous cell carcinoma, carcinoma in situ, or any other malignancies that has not relapsed for at least 2 years 6. History of severe allergy or hypersensitivity to any monoclonal antibodies, other therapeutic proteins or corticosteroid (e.g., dexamethasone) 7. History of infection with Mycobacterium tuberculosis within 2 years prior to the first dose of study treatment 8. Patients with systemic and active infection including human immunodeficiency virus (HIV), hepatitis B or C virus infection 9. Patients not recovered to Grade 1 or stabilized from the adverse effects (excluding alopecia) of any prior therapy for their malignancies 10. Women who are pregnant or lactating

• 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

Key 1. Documented genetic ALK, ROS1, or NTRK1-3 alteration (point mutation, fusion, amplification) as identified by local testing in a Clinical Laboratory Improvement Amendments (CLIA) laboratory in the US or equivalently accredited diagnostic lab outside the United States (US) is required. 2. Phase 1: Age <12 years; Phase 2: Age 12- 25 years 3. Prior cytotoxic chemotherapy is allowed. 4. Prior immunotherapy is allowed. 5. Resolution of all acute toxic effects (excluding alopecia) of any prior anti-cancer therapy to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 4.03 Grade less than or equal to 1. 6. All subjects must have measurable disease by RECIST v1.1 or Response Assessment in Neuro-Oncology Criteria (RANO) criteria at time of enrollment. 7. Subjects with a primary CNS tumor or CNS metastases must be neurologically stable on a stable or decreasing dose of steroids for at least 14 days prior to enrollment. 8. Subjects must have a Lansky (< 16 years) or Karnofsky (≥ 16 years) score of at least 50. 9. Life expectancy greater than or equal to 12 weeks. 10. Adequate hematologic, renal and hepatic function. Phase 2 1. Cohort Specific
• Cohort 1: Subjects with NTRK fusion gene positive (NTRK+) advanced solid tumors (including primary CNS tumors), that are tropomyosin receptor kinase (TRK) TKI naïve;
• Cohort 2: subjects with NTRK+ advanced solid tumors (including primary CNS tumors), that are TRK TKI pre-treated;
• Cohort 3: subjects with tumors or ALCL characterized by other ALK/ROS1/NTRK alterations or NTRK fusions without centrally confirmed measurable disease or not otherwise eligible for Cohort 1 or 2. 2. Subjects in Cohorts 1 and 2 must have prospectively confirmed measurable disease by BICR prior to enrollment. Key Exclusion Criteria (Phase 1 and Phase 2): 1. Subjects with neuroblastoma with only bone marrow disease evaluable by bone marrow aspiration only. 2. Major surgery within 14 days (2 weeks) of start of repotrectinib treatment. Central venous access (Broviac, Mediport, etc.) placement does not meet criteria for major surgery. 3. Known active infections (bacterial, fungal, viral including HIV positivity). 4. Gastrointestinal disease (e.g., Crohn's disease, ulcerative colitis, or short gut syndrome) or other malabsorption syndromes that would impact drug absorption. 5. Any of the following cardiac criteria:
• Mean resting corrected QT interval (ECG interval measured from the onset of the QRS complex to the end of the T wave) for heart rate (QTc) > 480 msec obtained from three ECGs, using the screening clinic ECG machine-derived QTc value
• Any clinically important abnormalities in rhythm, conduction, or morphology of resting ECG (e.g., complete left bundle branch block, third degree heart block, second degree heart block, PR interval > 250 msec)
• Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, congenital long QT syndrome, family history of long QT syndrome, or any concomitant medication known to prolong the QT interval 6. Peripheral neuropathy of CTCAE ≥grade 2. 7. Subjects being treated with or anticipating the need for treatment with strong CYP3A4 inhibitors or inducers.

• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients must be >= 12 months and =< 21 years of age at the time of study enrollment
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients with recurrent or refractory solid tumors, including non-Hodgkin lymphomas, histiocytoses (e.g. langerhans cell histiocytosis [LCH], juvenile xanthogranuloma [JXG], histiocytic sarcoma), and central nervous system (CNS) tumors are eligible; patients must have had histologic verification of malignancy at original diagnosis or relapse except in patients with intrinsic brain stem tumors, optic pathway gliomas, or patients with pineal tumors and elevations of cerebrospinal fluid (CSF) or serum tumor markers including alpha-fetoprotein or beta-human chorionic gonadotropin (HCG); in cases where patient enrolls prior to histologic confirmation of recurrent disease, patient is ineligible and should be withdrawn from study if histology fails to confirm recurrence; please note: Patients with Hodgkin lymphoma and plexiform neurofibroma are not eligible
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Tumor Testing Requirement: Tumor sample availability requirement for stage 1 of Pediatric MATCH (patients enrolled from start of study in July 2017 through 12/31/21); Patients must have an formalin-fixed paraffin-embedded (FFPE) tumor sample available for MATCH study testing from a biopsy or surgery that was performed at any point after initial tumor recurrence/progression, or be planned to have a procedure to obtain such a sample that is considered to be of potential benefit by the treating clinicians; a tumor sample from a clinically performed diagnostic (pre-treatment) biopsy will be acceptable for enrollment onto Pediatric MATCH only for children with high-grade gliomas of the brainstem (diffuse intrinsic pontine gliomas) or thalamus
• Please note: Samples that have been decalcified using standardly utilized acid-based decalcification methods are not generally suitable for MATCH study testing; the nucleic acids will have been degraded in the decalcification process
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Tumor molecular profiling report availability requirement for Stage 2 of Pediatric MATCH (patients enrolled starting 2022): In stage 2 of the study, no tumor samples will be submitted for centralized clinical tumor profiling; instead, a tumor molecular profiling report from a College of American Pathologists (CAP)/ Clinical Laboratory Improvements Amendments (CLIA)-approved testing laboratory must be submitted for review by the Molecular Review Committee (MRC)
• This molecular profiling must have been performed on a tumor sample that was obtained at any point after initial tumor recurrence/progression and must be accompanied by a pathology report for the same tumor specimen; a molecular profiling report for a diagnostic (pre-treatment) tumor sample will be acceptable for enrollment onto Pediatric MATCH only for children with high-grade gliomas of the brainstem (diffuse intrinsic pontine gliomas) or thalamus. In the event that molecular profiling reports are available from multiple timepoints, the most recent report should be prioritized for study submission
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age); note: neurologic deficits in patients with central nervous system (CNS) tumors must have been stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients must have radiographically measurable disease; measurable disease based on imaging obtained less than or equal to 56 days prior to enrollment; patients with neuroblastoma who do not have measurable disease but have metaiodobenzylguanidine (MIBG) positive (+) evaluable disease are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on standard magnetic resonance imaging (MRI) or computed tomography (CT)
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or CSF
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: NOTE: patient does not need to meet all subprotocol criteria at time of enrollment onto the APEC1621SC screening protocol, but will need to meet all criteria prior to enrollment on any assigned treatment subprotocol. Patients must be enrolled onto a subprotocol within 2 weeks (14 days) of treatment assignment
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age); Note: neurologic deficits in patients with CNS tumors must have been stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: At the time of treatment with subprotocol specified therapy, the patients must have radiographically measurable disease; patients with neuroblastoma who do not have measurable disease but have MIBG+ evaluable are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on standard MRI or CT
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or CSF
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for RECIST 1.1
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: At the time of enrollment onto a subprotocol, the following general criteria for initiation of therapy will be required:
• Patients must have fully recovered from the acute toxic effects of all prior anticancer therapy and must meet the following minimum duration from prior anticancer directed therapy prior to enrollment to the subprotocol; if after the required timeframe, the numerical eligibility criteria are met, e.g. blood count criteria, the patient is considered to have recovered adequately
• Cytotoxic chemotherapy or other anticancer agents known to be myelosuppressive: for agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned research coordinator prior to enrollment >= 21 days after the last dose of cytotoxic or myelosuppressive chemotherapy (42 days if prior nitrosourea)
• Anticancer agents not known to be myelosuppressive (e.g. not associated with reduced platelet or absolute neutrophil counts [ANC]): >= 7 days after the last dose of agent; for agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned research coordinator prior to enrollment
• Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
• Corticosteroids: If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g. Neulasta) or 7 days for short-acting growth factor; for agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair and the study-assigned research coordinator
• Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
• Stem cell infusions (with or without total-body irradiation [TBI]):
• Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusion (DLI) or boost infusion: >= 84 days after infusion and no evidence of graft versus host disease (GVHD)
• Autologous stem cell infusion including boost infusion: >= 42 days
• Cellular therapy: >= 42 days after the completion of any type of cellular therapy (e.g. modified T cells, natural killer (NK) cells, dendritic cells, etc.)
• X-ray therapy (XRT)/External Beam Irradiation including Protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial bone marrow (BM) radiation; note: radiation may not be delivered to "measurable disease" tumor site(s) being used to follow response to subprotocol treatment
• Radiopharmaceutical therapy (e.g., radiolabeled antibody, 131I-MIBG): >= 42 days after systemically administered radiopharmaceutical therapy
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: For patients with solid tumors without known bone marrow involvement:
• Peripheral absolute neutrophil count (ANC) >= 1000/mm^3
• Platelet count >= 100,000/mm^3 (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment)
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Patients with known bone marrow metastatic disease will be eligible for study provided they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions); these patients will not be evaluable for hematologic toxicity
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 ml/min/1.73 m^2 or a serum creatinine based on age/gender as follows:
• Age: 1 to < 2 years; maximum serum creatinine (mg/dL): male 0.6; female 0.6
• Age: 2 to < 6 years; maximum serum creatinine (mg/dL): male 0.8; female 0.8
• Age: 6 to < 10 years; maximum serum creatinine (mg/dL): male 1; female 1
• Age: 10 to < 13 years; maximum serum creatinine (mg/dL): male 1.2; female 1.2
• Age: 13 to < 16 years; maximum serum creatinine (mg/dL): male 1.5; female 1.4
• Age: >= 16 years; maximum serum creatinine (mg/dL): male 1.7; female 1.4
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Bilirubin (sum of conjugated + unconjugated) =< 1.5 x upper limit of normal (ULN) for age
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Serum glutamate pyruvate transaminase (SGPT) (alanine transferase [ALT]) =< 135 U/L (for the purpose of this study, the ULN for SGPT is 45 U/L)
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Patients must be able to swallow intact capsules/tablets, unless otherwise specified in the subprotocol to which they are assigned
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Agent specific limitations on prior therapy will be included with specific treatment subprotocols
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Pregnant or breast-feeding women will not be entered on this study due to risks of fetal and teratogenic adverse events as seen in animal/human studies, or because there is currently no available information regarding human fetal or teratogenic toxicities; pregnancy tests must be obtained in females who are post-menarchal; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Concomitant medications
• Corticosteroids: at the time of consent and enrollment to regimen specific subprotocols, patients receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment to the subprotocol will not be eligible; if used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Investigational drugs: patients must meet criteria for prior therapy at the time of consent and enrollment to a subprotocol; other investigational agents may not be administered to patients while they are receiving study drug as part of a subprotocol
• Anticancer agents: patients must meet criteria for prior therapy at the time of consent and enrollment to a subprotocol; other investigational agents may not be administered to patients while they are receiving study drug as part of a subprotocol
• Anti-GVHD agents post-transplant: patients who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post bone marrow transplant are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Patients who have an uncontrolled infection are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Patients who have had a prior solid organ transplant are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Additional agent specific criteria will be included with specific treatment subprotocols

• Age Patients must be ≤21 years of age at the time of enrollment. 1. Phase 1
•Initial enrollment will be restricted to patients < 18 years of age until 9 such patients are enrolled 2. Phase 2
•Initial enrollment will be restricted to patients < 18 years of age until 6 such patients are enrolled
• Diagnosis Patients must have a diagnosis of relapsed/refractory ALL or LLy with or without extramedullary disease (including CNS2 and CNS3). Patient with mixed phenotype ALL or mature B (Burkitt-like) leukemia are not eligible. 1. Patients with ALL must have ≥ 5% blasts by morphology. 2. Patients with LLy must have measurable disease documented by clinical, radiologic or histologic criteria
• Performance Level Karnofsky ≥ 50% for patients > 16 years of age and Lansky ≥ 50% for patients ≤ 16 years of age.
• Prior Therapy A. Prior therapeutic attempts
• Phase 1
•Any patients with relapsed/refractory ALL or LLy
• Phase 2 1. B-cell ALL/LLy: all patients must have failed two or more therapeutic attempts. 2. T-cell ALL/LLy: all patients must have failed one or more therapeutic attempts. B. Recent prior chemotherapy Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study.
• Cytoreduction with hydroxyurea Hydroxyurea can be initiated and continued for up to 24 hours prior to the start of protocol therapy.
• Patients who relapsed while they are receiving cytotoxic therapy At least 14 days must have elapsed since the completion of the last dose of chemotherapy,except Intrathecal chemotherapy, and/or maintenance therapy such as vincristine, mercaptopurine, methotrexate or glucocorticoids. There is no waiting period for those relapsing on maintenance therapy. C. Hematopoietic stem cell transplant: Patients who have experienced their relapse after a HSCT are eligible, provided they have no evidence of acute or chronic Graft-versus-Host Disease (GVHD), are not receiving GVHD prophylaxis or treatment, and are at least 90 days post-transplant at the time of enrollment. D. Hematopoietic growth factors: It must have been at least 7 days since the completion of therapy with G-CSF 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®). E. Biologic (anti-neoplastic agent): At least 7 days since the last dose of a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. The duration of this interval must be discussed with the study chair 1. Monoclonal antibodies: At least 3 half-lives of the antibody must have elapsed after the last dose of monoclonal antibody. (i.e., blinatumomab = 6 hours,44 inotuzumab = 37 days, rituximab = 66 days) 2. Immunotherapy: At least 30 days after the completion of any type of immunotherapy, e.g., tumor vaccines, CAR T cells. F. XRT: Craniospinal XRT is prohibited during protocol therapy. No washout period is necessary for radiation given to any extramedullary site other than CNS; ≥90 days must have elapsed if prior total body irradiation (TBI) or craniospinal XRT. G. Anthracyclines: Patients must have had a lifetime exposure of <400 mg/m2 of doxorubicin equivalents of anthracyclines. H. Proteasome inhibitors: Patients with a prior exposure to proteasome inhibitors (e.g., bortezomib, carfilzomib) are eligible as long as the patient demonstrated at least a partial response to a proteasome inhibitor with chemotherapy combination. -Renal and hepatic function Patients must have adequate renal and hepatic functions as indicated by the following laboratory values: A. Adequate renal function defined as: Patient must have a calculated creatinine clearance or radioisotope GFR 70ml/min/1.73m2 OR a normal serum creatinine based on age/gender B. Adequate Liver Function Defined as: Direct bilirubin ≤ 1.5 x upper limit of normal (ULN) for age or normal (except in the presence of Gilbert's syndrome), AND alanine transaminase (ALT) ≤ 5 x ULN for age. The hepatic requirements are waived for patients with known or suspected liver involvement by leukemia or lymphoma. This must be reviewed by and approved by the study chair or vice chair.
• Adequate Cardiac Function Defined as: Shortening fraction of more than or equal to 27% by echocardiogram, OR ejection fraction of equal to or more than 50% by radionuclide angiogram (MUGA).
• Reproductive Function A. Female patients of childbearing potential must have a negative urine or serum pregnancy test confirmed within 2 weeks prior to enrollment. B. Female patients with infants must agree not to breastfeed their infants while on this study. C. Male and female patients of child-bearing potential must agree to use an effective method of contraception approved by the investigator during the study and for a minimum of 6 months after study treatment.
• Informed Consent Patients and/or their parents or legal guardians must be capable of understanding the investigational nature, potential risks and benefits of the study. All patients and/or their parents or legal guardians must sign a written informed consent. Age appropriate assent will be obtained per institutional guidelines. To allow non-English speaking patients to participate in this study, bilingual health services will be provided in the appropriate language when feasible.
• All institutional, FDA, and OHRP requirements for human studies must be met. Patients will be excluded if they have isolated CNS or testicular disease. Patients will be excluded if they have ≥grade 2 peripheral sensory or motor neuropathy (defined by the Modified "Balis" Pediatric Scale of Pediatric Neuropathies) at the time of enrollment (see section 4.7.1.1). Patients will be excluded if they have a known allergy or intolerance to any of the drugs used in the study
•except for PEG-asparaginase for which erwinia asparaginase may be substituted Patients will be excluded if they have a systemic fungal, bacterial, viral or other infection that is exhibiting ongoing signs/symptoms related to the infection without improvement despite appropriate antibiotics or other treatment. The patient needs to be off pressors and have negative blood cultures for 48 hours. Patients will be excluded if there is a plan to administer non-protocol chemotherapy, radiation therapy, or immunotherapy during the study period. Patients will be excluded if they have significant concurrent disease, illness, psychiatric disorder or social issue that would compromise patient safety or compliance with the protocol treatment or procedures, interfere with consent, study participation, follow up, or interpretation of study results. Patients with DNA fragility syndromes (such as Fanconi anemia, Bloom syndrome) are excluded. Patients will be excluded if they have had a lifetime exposure of ≥400 mg/m2 doxorubicin equivolents of anthracyclines (anthracycline equivalence to doxorubicin conversion see appendix iv) . Concomitant medications Investigational drugs: Patients currently receiving another investigational drug are not eligible. Anti-GVHD agents post transplant: patients who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post hematopoetic stem cell transplant are not eligible. CYP3A4 agents: patients who are currently receiving drugs that are strong inducers of CYP3A4 are not eligible. Strong inducers of CYP3A4 should be avoided from 14 days prior to enrollment to the end of the study. See appendix ii for a list of agents which fall into this category. Patients with Ph+ALL and Ph-like ALL who are currently receiving TKI therapy Infants or Patients with Down Syndrome will be excluded in phase 2 of the study

1. 1 month of age up to < 18 years of age at the time of signing the informed consent. 2. Received HSCT within the past 6 months. 3. Diagnosis of TMA that persists despite initial management of any triggering condition. 4. Body weight ≥ 5 kilograms. 5. Female participants of childbearing potential and male participants with female partners of childbearing potential must use highly effective contraception starting at Screening and continuing until at least 8 months after the last dose of ravulizumab. 6. Participants must be vaccinated against meningococcal infections if clinically feasible, according to institutional guidelines for immune reconstitution after HSCT. Participants must be re-vaccinated against Haemophilus influenzae type b and Streptococcus pneumoniae if clinically feasible, according to institutional guidelines for immune reconstitution after HSCT. All participants should be administered coverage with prophylactic antibiotics according to institutional post-transplant infection prophylaxis guidances, including coverage against Neisseria meningitidis for at least 2 weeks after meningococcal vaccination. Participants who cannot receive meningococcal vaccine should receive antibiotic prophylaxis coverage against Neisseria meningitidis the entire Treatment Period and for 8 months following the final dose of ravulizumab. 1. Known familial or acquired 'a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13' deficiency (activity < 5%). 2. Known Shiga toxin-related hemolytic uremic syndrome. 3. Positive direct Coombs test. 4. Diagnosis or suspicion of disseminated intravascular coagulation. 5. Known bone marrow/graft failure. 6. Diagnosis of veno-occlusive disease. 7. Human immunodeficiency virus (HIV) infection (evidenced by HIV-1 or HIV-2 antibody titer). 8. Unresolved meningococcal disease. 9. Presence or suspicion of sepsis (treated or untreated) within 7 days prior to Screening. 10. Pregnancy or breastfeeding. 11. Hypersensitivity to murine proteins or to 1 of the excipients of ravulizumab. 12. Previously or currently treated with a complement inhibitor.

1. Male and female subjects at least 12 years of age who have had allogenic hematopoietic cell transplant (HCT). 2. Previously received at least 2 and not more than 5 lines of systemic therapy for cGVHD 3. Receiving glucocorticoid therapy with a stable dose over the 2 weeks prior to screening 4. Have persistent cGVHD manifestations and systemic therapy is indicated 5. Karnofsky Performance Score of ≥ 60 (if aged 16 years or older); Lansky Performance Score of ≥ 60 (if aged < 16 years) 6. Weight ≥ 40kg 1. Subject has not been on a stable dose / regimen of systemic cGVHD treatments for at least 2 weeks prior to screening. (Note: Concomitant corticosteroids, calcineurin inhibitors, sirolimus, MMF, methotrexate, rituximab, and extracorporeal photophoresis (ECP) are acceptable. Systemic investigational GVHD treatments are not permitted). 2. Histological relapse of the underlying cancer or post-transplant lymphoproliferative disease at the time of screening. 3. Current treatment with ibrutinib. Prior treatment with ibrutinib is allowed with a washout of at least 28 days prior to randomization.

• B-ALL and MPAL patients must be enrolled on APEC14B1 and consented to eligibility studies (Part A) prior to treatment and enrollment on AALL1732. Note that central confirmation of MPAL diagnosis must occur within 22 business days after enrollment for MPAL patients. If not performed within this time frame, patients will be taken off protocol.
• APEC14B1 is not a requirement for B-LLy patients but for institutional compliance every patient should be offered participation in APEC14B1. B-LLy patients may directly enroll on AALL1732.
• Patients must be > 365 days and < 25 years of age
• White blood cell count (WBC) criteria for patients with B-ALL (within 7 days prior to the start of protocol-directed systemic therapy):
• Age 1-9.99 years: WBC >= 50,000/uL
• Age 10-24.99 years: Any WBC
• Age 1-9.99 years: WBC < 50,000/uL with:
• Testicular leukemia
• CNS leukemia (CNS3)
• Steroid pretreatment.
• White blood cell count (WBC) criteria for patients with MPAL (within 7 days prior to the start of protocol-directed systemic therapy):
• Age 1-24.99 years: any WBC.
• Patient has newly diagnosed B-ALL or MPAL (by World Health Organization [WHO] 2016 criteria) with >= 25% blasts on a bone marrow (BM) aspirate;
• OR If a BM aspirate is not obtained or is not diagnostic of acute leukemia, the diagnosis can be established by a pathologic diagnosis of acute leukemia on a BM biopsy;
• OR A complete blood count (CBC) documenting the presence of at least 1,000/uL circulating leukemic cells if a bone marrow aspirate or biopsy cannot be performed.
• Patient has newly diagnosed B-LLy Murphy stages III or IV.
• Patient has newly diagnosed B-LLy Murphy stages I or II with steroid pretreatment.
• 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.
• All patients and/or their parents or legal guardians must sign a written informed consent.
• All institutional, Food and Drug Administration (FDA), and NCI requirements for human studies must be met.
• Patients with Down syndrome are not eligible (patients with Down syndrome and B-ALL are eligible for AALL1731, regardless of NCI risk group).
• With the exception of steroid pretreatment or the administration of intrathecal cytarabine, patients must not have received any prior cytotoxic chemotherapy for the current diagnosis of B-ALL, MPAL, or B-LLy or for any cancer diagnosed prior to initiation of protocol therapy on AALL1732.
• Patients who have received > 72 hours of hydroxyurea within one week prior to start of systemic protocol therapy.
• Patients with B-ALL or MPAL who do not have sufficient diagnostic bone marrow submitted for APEC14B1 testing and who do not have a peripheral blood sample submitted containing > 1,000/uL circulating leukemia cells.
• Patients with acute undifferentiated leukemia (AUL) are not eligible.
• For Murphy stage III/IV B-LLy patients, or stage I/II patients with steroid pretreatment, 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.
• 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 women who plan to breastfeed their infants while on study and for 2 months after the last dose of inotuzumab ozogamicin.
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of study participation. For those patients randomized to inotuzumab ozogamicin, there is a minimum of 8 months after the last dose of inotuzumab ozogamicin for females and 5 months after the last dose of inotuzumab ozogamicin for males.

1. Prior SOT of kidney, liver, heart, lung, pancreas, small bowel, or any combination of these (SOT cohort); or prior allogeneic HCT (HCT cohort) 2. A diagnosis of locally-assessed, biopsy-proven EBV+ PTLD 3. Availability of appropriate partially HLA-matched and restricted tabelecleucel has been confirmed by the sponsor 4. Measurable, 18F-deoxyglucose (FDG)-avid (Deauville score ≥ 3) systemic disease using Lugano Classification response criteria by positron emission tomography (PET)-diagnostic computed tomography (CT), except when contraindicated or mandated by local practice, then magnetic resonance imaging (MRI) may be used.For subjects with treated central nervous system (CNS) disease, a head CT and/or brain/spinal MRI as clinically appropriate will be required to follow CNS disease response per Lugano Classification response criteria. 5. Treatment failure of rituximab or interchangeable commercially available biosimilar monotherapy (SOT subgroup A or HCT cohort) or rituximab plus any concurrent or sequentially administered chemotherapy regimen (SOT subgroup B) for treatment of PTLD. 6. Eastern Cooperative Oncology Group performance status ≤ 3 for subjects aged ≥ 16 years; Lansky score ≥ 20 for subjects < 16 years 7. For HCT cohort only: If allogeneic HCT was performed as treatment for an acute lymphoid or myeloid malignancy, the underlying primary disease for which the subject underwent transplant must be in morphologic remission 8. Adequate organ function 1. Absolute neutrophil count ≥ 1000/μL, (SOT cohort) or ≥ 500/μL (HCT cohort), with or without cytokine support 2. Platelet count ≥ 50,000/μL, with or without transfusion or cytokine support. For HCT cohort, platelet count < 50,000/μL but ≥ 20,000/μL, with or without transfusion support, is permissible if the subject has not had grade ≥ 2 bleeding in the prior 4 weeks (where grading of the bleeding is determined per the National Cancer Institute's Common Terminology Criteria for Adverse Events [CTCAE], version 5.0) 3. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total bilirubin each < 5 × the upper limit of normal; however, ALT, AST, and total bilirubin each ≤ 10 × upper limit of normal is acceptable if the elevation is considered by the investigator to be due to EBV and/or PTLD involvement of the liver as long as there is no known evidence of significant liver dysfunction 9. Subject or subject's representative is willing and able to provide written informed consent 1. Burkitt lymphoma, classical Hodgkin lymphoma, or any T cell lymphoma 2. Daily steroids of > 0.5 mg/kg prednisone or glucocorticoid equivalent, ongoing methotrexate, or extracorporeal photopheresis 3. Untreated CNS PTLD or CNS PTLD for which the subject is actively receiving CNS-directed chemotherapy (systemic or intrathecal) or radiotherapy at enrollment. NOTE:Subjects with previously treated CNS PTLD may enroll if CNS-directed therapy is complete. 4. Suspected or confirmed grade ≥ 2 graft-versus-host disease (GvHD) per the Center for International Blood and Marrow Transplant Research consensus grading system at enrollment 5. Ongoing or recent use of a checkpoint inhibitor agent (eg, ipilimumab, pembrolizumab, nivolumab) within 3 drug half-lives from the most recent dose to enrollment 6. For HCT cohort: active adenovirus viremia 7. Need for vasopressor or ventilatory support 8. Antithymocyte globulin or similar anti-T cell antibody therapy ≤ 4 weeks prior to enrollment 9. Treatment with Epstein-Barr virus cytotoxic T lymphocytes or chimeric antigen receptor T cells directed against B cells within 8 weeks of enrollment (SOT or HCT cohorts), or unselected donor lymphocyte infusion within 8 weeks of enrollment (HCT cohort only) 10. Female who is breastfeeding or pregnant or female of childbearing potential or male with a female partner of childbearing potential unwilling to use a highly effective method of contraception 11. Inability to comply with study-related procedures

• 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.

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