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

Eligibility criteria for study enrollment:
• Signed Informed Consent Form (ICF) by parent(s)/guardian(s) of subjects and informed assent form (IAF) for subjects ≥7 years, or as per local or country specific guidelines or regulations.
• Male or female subjects 2 to 17 years old at Visit 1.
• Documented medical history or physician-confirmed diagnosis of IgE-mediated CMA with systemic symptoms related to ingestion of milk or dairy products.
• Subjects currently following a strict cow's milk-free diet, with no consumption of dairy or baked milk products.
• Cow's milk-specific IgE level at screening ≥10 kU/L
• Positive Skin Prick Test (SPT) to cow's milk with a largest wheal diameter ≥6 mm.
• Positive DBPCFC at screening with an eliciting dose ≤300 mg cow's milk proteins (approximately ≤9.4 mL of cow's milk).
• Negative urine pregnancy test for female subjects of childbearing potential. Female subjects of childbearing potential must agree and commit to use effective medical methods of contraception for the entire duration of their participation in the study. Sexual abstinence will be accepted as an effective method of contraception for girls below 15 years of age.
• Ability to perform spirometry procedures in accordance with the American Thoracic Society guidelines (2005) for subjects ≥6 years old. Ability to perform peak expiratory flow (PEF) measurements for subjects ≥5 years old. Subjects <8 years of age who have documented inability to adequately perform spirometry can perform only the PEF evaluation. Subjects <5 years of age may be enrolled if they had no clinical features of moderate or severe persistent asthma severity (as defined by the 2007 National Heart, Lung, and Blood Institute [NHLBI] Guidelines) within 1 year before Visit 1.
• Subjects and/or parents/guardians willing to comply with all study requirements during participation in the study.
• History of severe anaphylaxis to cow's milk resulting in hypotension, hypoxia or neurological compromise (collapse, loss of consciousness or incontinence) or requiring mechanical ventilation.
• Pregnancy or lactation.
• Spirometry forced expiratory volume in 1 second (FEV1) <80% of the predicted value at Visit 1 for subjects ≥6 years and able to perform the spirometry, or PEF <80% of predicted value at Visit 1 for subjects performing only the PEF measurements.
• Any clinical features of moderate or severe persistent asthma severity (as defined by the 2007 NHLBI guidelines) and high daily doses of inhaled corticosteroids.
• Known allergy to the Viaskin patch materials or excipients, or to any of the components of the food challenge formulas other than the cow's milk proteins.
• Allergy or known history of reaction to Tegaderm® medical dressing with no possibility to use an alternative adhesive dressing authorized by the sponsor in replacement.
• Subjects having objective symptoms to the placebo formula leading to stopping the challenge during the screening DBPCFC.
• Severe reaction during the screening DBPCFC defined as need for intubation, and/or hypotension persisting after epinephrine administration, and/or the need for >2 doses of epinephrine.
• Symptomatic allergy to pollens with symptoms during the pollen season that might interfere with the symptoms observed during the DBPCFC, if the DBPCFC is performed during the pollen season. Screening of such subjects should be made out of the pollen season.
• Inability to discontinue short-acting antihistamines for 3 days or long-acting antihistamines for 5 to 7 days (depending on the half-life) before the DBPCFC.
• Use of systemic long-acting corticosteroids within 12 weeks before Visit 1 and/or use of systemic short-acting corticosteroids within 4 weeks before Visit 1 or use of systemic long-acting or short-acting corticosteroids during screening (unless used to treat symptoms triggered by the DBPCFC or triggered by accidental allergen consumption; in the latter case DBPCFC must then be scheduled after a minimum of 7 wash-out days).
• Subjects with asthma conditions meeting 1 or several criteria below:
• Uncontrolled persistent asthma (as defined by the 2007 NHLBI guidelines) or subject being treated with a combination therapy of medium or high daily dose of inhaled corticosteroid with a long acting inhaled β2-agonist. Intermittent asthmatic subjects who require intermittent use of inhaled corticosteroids for rescue are permitted.
• At least 2 systemic corticosteroid courses for asthma within 1 year before Visit 1 or 1 oral corticosteroid course for asthma within 3 months before Visit 1, or during screening (unless used to treat symptoms triggered by the DBPCFC).
• Prior intubation/mechanical ventilation due to asthma within 2 years before Visit 1, or during screening.
• Upper respiratory infection or gastroenteritis within 7 days of DBPCFC (DBPCFC must then be rescheduled at least 7 days after resolution of these conditions).
• Any history of milk immunotherapy (eg, oral immunotherapy, sublingual immunotherapy or specific oral tolerance induction).
• Prior history of any other food allergen immunotherapy (eg, oral immunotherapy, sublingual immunotherapy or specific oral tolerance induction) within 5 years before Visit 1.
• Subjects currently under aeroallergen immunotherapy and unwilling or unable to discontinue at the time of Visit 1. Aeroallergen Immunotherapy must be discontinued at the time of Visit 1.
• Use of any anti-IgE drug (eg, omalizumab), any immunomodulatory therapy, or any biological agent therapy (eg, anti-tumor necrosis factor drugs) within 1 year before Visit 1, or during screening.
• Generalized dermatologic diseases (eg, severe atopic dermatitis, uncontrolled generalized eczema, icthyosis vulgaris) with no intact zones to apply the Viaskin patch, or urticarial and mast cells disorders such as chronic idiopathic urticaria.
• Subject and/or subject's parents/guardians with obvious excessive anxiety and unlikely to cope with the conditions of a food challenge.
• Past or current disease, including but not limited to active eosinophilic gastrointestinal disorders, autoimmune disorders, immunodeficiency, malignancy, uncontrolled disease (hypertension, diabetes, psychiatric disorder, cardiac disease), or other disorders (eg, liver, gastrointestinal, kidney, cardiovascular, pulmonary disease or blood disorder) which in the opinion of the Investigator or the sponsor may affect the subject's participation in the study or place the subject at increased risk.
• Subjects and/or parents/guardians unable to use the epinephrine auto-injector properly in spite of being adequately trained.
• Contraindicated condition for the use of epinephrine.
• Use of any investigational drug or device, or participation in another interventional clinical study within 3 months before Visit 1.
• Subjects receiving beta-blockers or Angiotensin converting-enzyme (ACE) inhibitors.
• Subjects unable to follow the protocol requirements.

• Genotypically confirmed DMD, with genetic deletion amenable to exon 45 or exon 53 skipping
• Stable dose of oral corticosteroids for at least 24 weeks
• Intact right and left biceps or 2 alternative upper muscle groups
• Mean 6MWT greater than or equal 300 meters and less than or equal to 450 meters
• Stable pulmonary function: forced vital capacity (FVC) equal to or greater than 50% predicted
• Treatment with gene therapy at any time
• Previous treatment with SMT C1100, PRO045 (BMN 045), PRO053 (BMN 053) or PRO051 (BMN 051) within 24 weeks prior to Week 1
• Current or previous treatment with any other experimental treatment (other than deflazacort) within 12 weeks prior to Week 1
• Major surgery within 3 months prior to Week 1
• Presence of other clinically significant illness Other inclusion/exclusion criteria may apply

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

• Age: ≥12 months to <18 years old at the time of informed consent
• Diagnosis: Histologically confirmed rhabdomyosarcoma (RMS), non-rhabdomyosarcoma soft tissue sarcoma (NRSTS) (Grade 2 or 3), or Ewing sarcoma (EWS) which is relapsed or refractory (failed front line therapy)
• The presence of measurable disease meeting the following criteria:
• At least 1 lesion of ≥1.0 centimeter (cm) in the longest diameter for a non-lymph node or ≥1.5 cm in the short-axis diameter for a lymph node that is serially measurable according to Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 using computerized tomography/magnetic resonance imaging (CT/MRI).
• Lesions that have had radiotherapy must show subsequent radiographic evidence of increase in size by at least 20% to be deemed a target lesion.
• Therapeutic options: Participant's current disease state must be one for which there is no known curative therapy or therapy proven to prolong survival with an acceptable quality of life.
• Performance level: Performance score ≥50%. Karnofsky (for participants >16 years of age) or Lansky (for participants ≤16 years of age). Participants who are unable to walk because of paralysis and/or previous surgeries, but who are in a wheelchair, will be considered ambulatory for the purpose of assessing performance score.
• Participants 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 study drug administration. If, after the required time frame, the numerical eligibility criteria are met, eg, blood count criteria, the participant is considered to have recovered adequately:
• Cytotoxic chemotherapy or other chemotherapy known to be myelosuppressive: ≥21 days after the last dose of cytotoxic or myelosuppressive chemotherapy (42 days if prior nitrosourea).
• Anticancer agents not known to be myelosuppressive (eg, not associated with reduced platelet or absolute neutrophil count [ANC] counts): ≥7 days after the last dose of agent.
• Monoclonal antibodies ≥ 3 half-lives must have elapsed from infusion of last dose of antibody (including checkpoint inhibitors), and toxicity related to prior antibody therapy must be recovered to Grade ≤1.
• Hematopoietic growth factors: ≥14 days after the last dose of a long-acting growth factor (eg, Neulasta) or 7 days for a short-acting growth factor. For agents that have known adverse events (AEs) occurring beyond 7 days after administration, this period must be extended beyond the time during which AEs are known to occur. The duration of this interval must be discussed with the sponsor.
• Interleukins, interferons, and cytokines (other than hematopoietic growth factors): ≥21 days after the completion of interleukins, interferons, or cytokines (other than hematopoietic growth factors)
• Stem cell infusions (with or without total body irradiation [TBI]): ≥84 days
• Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusion 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 (eg, modified T-cells, natural killer cells, dendritic cells, etc)
• Radiation 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 BM radiation
• Radiopharmaceutical therapy (eg, radiolabeled antibody, 131I-metaiodobenzylguanidine): ≥42 days after systemically administered radiopharmaceutical therapy.
• Adequate bone marrow function, defined as:
• ANC ≥1.0 × 10^9/Liter (L)
• Platelet count ≥100 × 10^9/L (transfusion independent, defined as not receiving platelet transfusions within a 7-day period prior to study drug administration)
• Hemoglobin at least 8.0 grams per deciliter (g/dL) at Baseline (blood transfusions are allowed during the screening period to correct hemoglobin values less than 8.0 g/dL) Note: As blood transfusions are permitted to meet the hemoglobin criteria, participants requiring transfusion must not be known to be refractory to red blood cell or platelet transfusions.
• Adequate renal function, defined as:
• A serum creatinine based on age/gender, derived from the Schwartz formula for estimating glomerular filtration rate (GFR)
• Or creatinine clearance or GFR ≥50 milliliters per minute (mL/min)/1.73 meters squared (m^2) based on a 12 or 24 hour urine creatinine collection
• Adequate liver function, defined as:
• Bilirubin (sum of conjugated + unconjugated) ≤1.5 × upper limit of normal (ULN) for age
• Alanine aminotransferase (ALT) ≤110 units per Liter (U/L). For the purpose of this study, the ULN for ALT is 45 U/L
• Serum albumin ≥2 g/dL
• Informed consent: All participants and/or their parents or legally authorized representatives must sign a written informed consent. Assent, when appropriate, will be obtained according to institutional guidelines. Participants must be willing to comply with all aspects of the protocol.
• Pregnancy, breastfeeding, contraception: Females who are breastfeeding or pregnant at Screening or Baseline (as documented by a positive beta-human chorionic [β-hCG] or human chorionic gonadotropin [hCG] test with a minimum sensitivity of 25 International Units per Liter [IU/L] or equivalent units of β-hCG [or hCG]). A separate baseline assessment is required if a negative screening pregnancy test was obtained more than 72 hours before the first dose of study drug.
• Females of childbearing potential (all post pubertal females will be considered to be of childbearing potential unless they have early menopause [amenorrheic for at least 12 consecutive months, in the appropriate age group, and without other known or suspected cause] or have been sterilized surgically [ie, bilateral tubal ligation, total hysterectomy, or bilateral oophorectomy, all with surgery at least 1 month before dosing]) who:
• Do not agree to use a highly effective method of contraception for the entire study period and for 6 months after study drug discontinuation, ie:
• Total abstinence (if it is their preferred and usual lifestyle);
• An intrauterine device (IUD) or intrauterine system (IUS);
• A contraceptive implant;
• An oral contraceptive (must be on a stable dose of the same oral hormonal contraceptive product for at least 4 weeks before dosing with study drug and for the duration of the study and for 6 months after study drug discontinuation); or
• Do not have a vasectomized partner with confirmed azoospermia. For sites outside of the European Union (EU), it is permissible that if a highly effective method of contraception is not appropriate or acceptable to the participant, or the participant has commenced/adjusted/changed oral hormonal contraceptive product/dose within 4 weeks prior to study drug administration, then the participant must agree to use a medically acceptable method of contraception, ie, double barrier methods of contraception such as condoms plus diaphragm or cervical/vault cap with spermicide.
• Males who have not had a successful vasectomy (confirmed azoospermia) or if they and their female partners do not meet the criteria above (ie, not of childbearing potential or practicing highly effective contraception throughout the study period or for 3 months after study drug discontinuation). No sperm donation is allowed during the study period or for 3 months after study drug discontinuation.
•Concomitant medications:
• Corticosteroids: Participants receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to study drug administration (except when indicated for Central Nervous System [CNS] metastases, then participants must not have received corticosteroids for at least 28 days)
• Anticancer Agents: participants who are currently receiving other anticancer agents
• Anti-GVHD agents Post-transplant: Participants who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post bone marrow transplant
• Strong CYP3A4 inducers/inhibitors
• Received prior therapy with eribulin mesylate
• Any other malignancy that required treatment (except for non-melanoma skin cancer, or histologically confirmed complete excision of carcinoma in situ), within 2 years prior to study drug administration
• Has hypersensitivity to eribulin or any of the excipients
• Has a prior history of viral hepatitis (B or C) as demonstrated by positive serology (presence of antigens) or have an uncontrolled infection requiring treatment. Participants with a known prior history of hepatitis B or C may be eligible pending agreement with the sponsor.
• Has > Grade 1 peripheral sensory neuropathy or > Grade 1 peripheral motor neuropathy graded according to the Modified ("Balis") Pediatric Scale of Peripheral Neuropathies
• Has cardiac pathology: Participants with known congestive heart failure, symptomatic or left ventricular (LV) ejection fraction <50% or shortening fraction <27%
• Participants with congenital long QT syndrome, bradyarrhythmias, or QTc >480 msec on at least 2 separate electrocardiograms (ECGs).
• Has CNS Disease: Participants with brain or subdural metastases are not eligible unless the metastases are asymptomatic and do not require treatment or have been adequately treated by local therapy (eg, surgery or radiotherapy) and have discontinued the use of corticosteroids for this indication for at least 4 weeks prior to study drug administration. Confirmation of radiographic stability must be done by comparing the brain scan (CT or MRI) performed during the Screening Period, using the same imaging modality, to a brain scan performed earlier (and following local therapy where applicable). Participants must be clinically stable. It is not the intention of this protocol to treat participants with active brain metastases. Note: CNS imaging is required to confirm eligibility for participants with a known history of CNS disease.
• Have had or are planning to have the following invasive procedures:
• Major surgical procedure or significant traumatic injury within 28 days prior to study drug administration
• Laparoscopic procedure or open biopsy within 7 days prior to study drug administration
• Central line placement or subcutaneous port placement is not considered major surgery but must be placed at least 2 days prior to study drug administration
• Core biopsy, including bone marrow biopsy, within 2 days prior to study drug administration
• Fine needle aspirate within 3 days prior to study drug administration
• Has any serious concomitant illness that in the opinion of the investigator(s) could affect the participant's safety or interfere with the study assessments
• Participants with known human immunodeficiency virus (HIV); due to lack of available safety data for eribulin therapy in HIV-infected participants

• Pediatric participants 3 months to 17 years of age with clinically stable chronic renal anemia
• CKD with estimated glomerular filtration rate (eGFR) of < 45 mL/min/1.73 m2 (determined by the Bedside Schwartz formula) or dialysis treatment for at least 8 weeks before the first dose of Mircera
• For participants on peritoneal dialysis (PD): a weekly Kt/V≥ 1.8
• For participants on HD: adequate HD, urea reduction ratio (URR) > 65% or Kt/V > 1.2 for participants on HD three times per week. Participants with fewer than or more than three HD sessions per week should have a weekly Kt/V≥ 3.6.
• Baseline Hb concentration 10.0-12.0 g/dL determined from the mean of two Hb values measured at Visit 1 (Week -3) and Visit 2 (Week -1)
• Stable SC maintenance treatment with epoetin alfa, epoetin beta, or darbepoetin alfa with the same dosing interval for at least 6 weeks before the first dose of Mircera
• Stable dose of epoetin alfa, epoetin beta, or darbepoetin alfa treatment with no weekly dose change > 25% (increase or decrease) for at least 4 weeks before the first dose of Mircera
• Adequate iron status defined as ferritin≥100 ng/mL or transferrin saturation (TSAT)≥ 20% (or percentage of hypochromic red cells < 10%); mean of two values measured during screening.
• Overt gastrointestinal bleeding within 8 weeks before screening or during the screening period
• RBC transfusions within 8 weeks before screening or during the screening period
• Hemoglobinopathies (e.g., homozygous sickle-cell disease, thalassemia of all types) Hemolytic anemia, Active malignant disease
• PD subjects with an episode of peritonitis within the past 30 days prior to screening and/or during the screening period
• Uncontrolled or symptomatic inflammatory disease (e.g., systemic lupus erythematosus)
• Uncontrolled hypertension as assessed by the investigator
• Epileptic seizures within 3 months prior to screening and during the screening period
• Administration of any investigational drug within 4 weeks prior to screening or planned during the study
• Severe hyperparathyroidism (intact parathyroid hormone [PTH]≥ 1000 pg/mL or whole PTH≥ 500 pg/mL) or biopsy-proven bone marrow fibrosis
• Kidney transplant with use of immunosuppressive therapies known to exacerbate anemia
• Known hypersensitivity to recombinant human erythropoietin (EPO), polyethylene glycol, or any constituent of the study drug formulation
• Anti-EPO antibody (AEAB)-mediated pure red cell aplasia (PRCA) or history of AEAB mediated PRCA or positive AEAB test result in the absence of PRCA
• High likelihood of early withdrawal or interruption of the study (e.g., planned living donor kidney transplant within 5 months of study start)
• Planned elective surgery during the entire study period

1. Subjects with a diagnosis of iobenguane avid, relapsed, high-risk neuroblastoma based on revised INRC criteria who have completed at least one cycle of induction and consolidation therapy with an INRC criterion of partial response or better, and then showed new progressive disease (revised INRC criteria progressive disease) as described in Park, et al. (2017).This may include one or more of the following drugs: cyclophosphamide or ifosfamide, cisplatin or carboplatin, vincristine, doxorubicin (adriamycin), etoposide, topotecan, and/or busulfan and melphalan (sometimes used during stem cell transplant) and/or immunotherapy. (If a subject is symptomatic and for logistical reasons cannot be treated immediately with 131I-MIBG, 1 to 2 cycles of "bridging chemotherapy" or immunotherapy will be permitted. If "bridging chemotherapy" or immunotherapy is applied, approximately 4 weeks will be required for reassessment of the baseline including tumor assessment. 2. Must be therapeutic 131I-MIBG naive. 3. All soft tissue lesions identified on CT/MRI scans must be iobenguane-avid lesions on an iobenguane (123I) scan or any non iobenguane avid lesions biopsy proven to be non-tumor lesions. 4. Adequate cryopreserved autologous peripheral blood stem cells or bone marrow (at least 2 aliquots of 2.0 × 10exp6 CD34/kg at the time of study enrollment). 5. If a man, must agree to use an adequate contraception method as deemed appropriate by the Investigator (e.g., vasectomy, condoms) or partner using effective contraception and to not donate sperm during the study and for 90 days after receiving the last dose of study drug. 6. If a woman of childbearing potential, have a negative serum pregnancy test result prior to each dosing and, if sexually active, be practicing an effective method of birth control [e.g., intrauterine device, double-barrier method (i.e., diaphragm, or a cervical cap) with intravaginal spermicidal foam, cream or gel], or male partner sterilization throughout the study. 7. Age at study entry ≥1 year. 8. Previous platelet transfusions are permitted, as long as the subject has a platelet count ≥50,000/μL without transfusion support for at least 1 week. 9. Subjects must have a minimum pulse oximetry measurement of at least 94% at baseline. 10. An absolute neutrophil count ≥750/μL without growth factor for 5 days. 11. Liver function parameter results: total bilirubin ≤1.5 × upper limit of normal for age, and serum glutamic-pyruvic transaminase (alanine aminotransferase) [SGPT (ALT)] and serum glutamic-oxaloacetic transaminase (aspartate aminotransferase) [SGOT (AST)] <3 × upper limit of normal (note that for ALT, the upper limit of normal for all sites is defined as 45 U/L). 12. Normal thyroid function as measured by T4 and TSH or have abnormal results that are not considered clinically important by the Investigator or may be receiving levothyroxine. 13. Cardiac Function: Ejection fraction (≥55%) documented by echocardiogram within 1 month prior to Visit 1 (baseline). 14. Karnofsky Performance Status (for subjects >16 years of age) or the Lansky Performance Status Performance Status (for subjects 1 to 16 years of age) ≥50%. 15. Full recovery from the toxic effects of any prior therapy. 1. Evidence of non-avid iobenguane lesions on iobenguane (123I) scan including soft tissue disease on CT/MRI that is not iobenguane-avid. 2. Subjects with primary refractory disease. 3. Subjects within 5 half-lives after any antibody-based immunotherapy, or have not recovered from effects of any biologic therapy. 4. Subjects that are refractory to the prior treatment regimen. 5. Subjects <12 weeks after myeloablative therapy with autologous stem cell transplant. 6. Subjects who have had an allogeneic stem cell treatment less than 4 months from Visit 1 are excluded. Those who have received allogeneic stem cell treatment more than 4 months from Visit 1 must have recovered and have no active graft versus host disease (GVHD) to be eligible. 7. History of local radiation therapy within the last 3 months. 8. History of total body irradiation. 9. Subjects do not have adequate renal function defined as adjusted serum creatinine ≥1.5 × upper limit of normal for sex and age. 10. Subjects who are on hemodialysis. 11. Pregnancy or breastfeeding. 12. Significant active infections including active hepatitis B, or hepatitis C infection, or known infection with human immunodeficiency virus (HIV) (testing for HIV is not required prior to study entry). 13. Clinically important cardiac, pulmonary, and hepatic impairment.

• Patients must be:
• < 12 months (< 365 days) of age at diagnosis with INRG stage L1; or
• < 18 months (< 547 days) of age at diagnosis with INRG stage L2 or stage Ms neuroblastoma/ganglioneuroblastoma
• Enrollment on ANBL00B1 or APEC14B1 is required for all newly diagnosed patients
• Patients must have newly diagnosed v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog (MYCN) non-amplified neuroblastoma (International Classification of Diseases for Oncology [ICD-O] morphology 9500/3) or MYCN non-amplified ganglioneuroblastoma verified by histology
• Patients must meet the specified criteria for one of the treatment groups defined below; genomic features include MYCN gene amplification, segmental chromosome aberrations (somatic copy number loss at 1p, 3p, 4p, or 11q or somatic copy number gain at 1q, 2p, or 17q) and deoxyribonucleic acid (DNA) index
• "Favorable" genomic features are defined by one or more whole-chromosome gains or hyperdiploid tumor (DNA index > 1) in the absence of segmental chromosome aberrations as defined above
• "Unfavorable" genomic features are defined by the presence of any segmental chromosome aberration (somatic copy number loss at 1p, 3p, 4p, or 11q or somatic copy number gain at 1q, 2p, or 17q) or diploid tumor (DNA index = 1); this includes copy neutral loss of heterozygosity (LOH)
• Only patients with MYCN non-amplified tumors are eligible for this study
• Group A: patients < 12 months (< 365 days) of age with newly diagnosed INRG stage L1 neuroblastoma/ganglioneuroblastoma who meet the following criteria:
• Greatest tumor diameter < 5 cm of adrenal or non-adrenal origin
• Patients with non-adrenal primaries are eligible, but must have positive uptake on metaiodobenzylguanidine (MIBG) scan or elevated catecholamine metabolites (urine or serum) to support the diagnosis of neuroblastoma
• No prior tumor resection or biopsy
• Group A will be further split into two subsets, which are mutually exclusive, for statistical purposes
• Group A1:
• > 6 months and < 12 months of age with an adrenal primary tumor < 5 cm in greatest diameter OR
• Patients less than 6 months of age with an adrenal primary tumor > 3.1 and < 5 cm in greatest diameter OR
• < 12 months of age with a non-adrenal primary site < 5 cm in greatest diameter
• Group A2: =< 6 months of age with an adrenal primary site and tumor =< 3.1 cm in greatest diameter.
• Group B: patients < 18 months (< 547 days) of age with newly diagnosed INRG stage L2 neuroblastoma/ganglioneuroblastoma who meet the following criteria:
• No life threatening symptoms or no impending neurologic or other organ function compromise (e.g. epidural or intraspinal tumors with existing or impending neurologic impairment, periorbital or calvarial-based lesions with existing or impending cranial nerve impairment, anatomic or mechanical compromise of critical organ function by tumor [abdominal compartment syndrome, urinary obstruction, etc.]); horner syndrome is not considered neurologic compromise
• No prior tumor resection, tumor biopsy ONLY
• Only patients with both favorable histology and favorable genomic features will remain on study as part of Group B; the institution will be notified of histologic and genomic results within 3 weeks of specimen submission on ANBL00B1 or APEC14B1
• Group C: patients < 18 months (< 547 days) of age with newly diagnosed INRG stage Ms neuroblastoma/ganglioneuroblastoma
• No prior radiotherapy or chemotherapy, with the exception of dexamethasone, which is allowed
• All patients and/or their parents or legal guardians must sign a written informed consent
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met
• Patients with MYCN amplified tumors are not eligible
• Group B and C patients who do not enroll on ANBL1232 within 4 weeks of definitive diagnostic procedure
• Group A and C patients, not required to undergo tumor biopsy, who do not enroll on ANBL1232 within 4 weeks of confirmatory imaging study

• Inborn or out born infants of either gender or any race with best obstetrical estimate of gestation <28 weeks (27 6/7 weeks and younger). Gestational age will be determined by best obstetrical estimate using the hierarchy of best obstetrical estimate using early ultrasound dating, maternal menstrual dating confirmed by examination, or neonatal gestational age assessment by physical examination.
• Alive at 12 hours.
• Age in hours up to 72 hours, although we will seek enrollment as early as feasible after consent and 12 hours.
• Informed consent signed and dated by parent and/or guardian, which includes likelihood of completing follow-up ophthalmic examinations as an outpatient, and long-term follow-up. Exclusion Criteria
• Major congenital malformations
• Congenital malformations of the eye identified prior to randomization.
• Overt evidence of intrauterine congenital infections ("TORCH") or life threatening impairment of renal, hepatic, or cardiac function (considered moribund).

• Age -- Age ≤ 30 years at time of initial qualifying solid tumor diagnosis
• Diagnosis -- Histologic diagnosis of solid malignancy (excluding brain tumors and lymphoma) that meets at least one of the following criteria:
• Refractory, defined as tumor progression after initiation of standard first line therapy without having achieved a prior partial or complete remission OR Biopsy proven residual disease at the completion of planned standard initial front-line therapy.
• Recurrent, defined as tumor progression after achieving a prior partial or complete remission
• Newly diagnosed high risk disease, defined as having an expected event free survival of < 50% at 2 years.
• Lacks definitive diagnosis or classical genomic findings after histologic review and standard molecular testing (rare tumor group).
• Examples include (eligibility not limited to these examples):
• Histology typically associated with a fusion in which fusion is not detected.
• Ewing-like sarcoma
• Undifferentiated sarcoma
• Inflammatory myofibroblastic tumor without ALK fusion
• Infantile fibrosarcoma without NTRK fusion
• Specimen Samples
• Sufficient tumor specimen available to meet the minimum requirements for profiling from diagnosis or progression / recurrence --- OR
• Surgery / biopsy planned as part of clinical care that is anticipated to yield sufficient material to meet the minimum requirements for profiling; OR
• Patient has already had molecular profiling and patient has not yet started matched targeted therapy based on the report .
• No Therapy Planned -- Patients who have declined further anticancer therapy will be excluded.
• Performance Status -- Patients with Lansky (age < 16 years) or Karnofsky (age ≥16 years) score < 50 will be excluded.
• Life Expectancy -- Patients with anticipated life expectancy < 3 months will be excluded.

INCLUSION CRITERIA
• Medulloblastoma or medulloblastoma variants including posterior fossa PNET as documented by an institutional pathologist.
• Participant's age meets one of the following: (1) Age greater than or equal to 3 years and less than 22 years of age at the time of diagnosis (may enroll on Strata W, S or N), OR (2) age is greater than or equal to 22 years and less than 40 years AND patient has SHH medulloblastoma (must enroll on Stratum S).
• No previous radiotherapy, chemotherapy or other brain tumor directed therapy other than corticosteroid therapy and surgery.
• Patients must begin treatment as outlined in the protocol within 36 days of definitive surgery (day of surgery is day 0; definitive surgery includes second surgeries to resect residual tumor).
• Adequate performance status: children < 10-Lansky Score ≥ 30; children ≥ 10-Karnofsky ≥ 30 (except for posterior fossa syndrome).
• Females of child-bearing potential cannot be pregnant or breast-feeding. Female participants > 10 years of age or post-menarche must have a negative serum or urine pregnancy test prior to enrollment.
• Biological parent(s) of participant (child) enrolling on this protocol. These parents will be assigned to cohort P. The exclusion criteria below do not apply to this cohort. EXCLUSION CRITERIA
• CNS embryonal tumor other than medulloblastoma or PNET in the posterior fossa, for example, patients with diagnosis of Atypical Teratoid / Rhabdoid Tumor (ATRT), supratentorial PNET, pineoblastoma, ependymoblastoma, ETANTR are excluded.
• Research participants with other clinically significant medical disorders that could compromise their ability to tolerate protocol therapy or would interfere with the study procedures or results history. Participants in the Stratum S maintenance chemotherapy portion of the study must meet the criteria below prior to start of vismodegib therapy:
• Participants must be Stratum S (SHH)
• Participants must be skeletally mature defined as females with a bone age ≥ 15 years and males with a bone age ≥ 17 years.
• Must be able to swallow pills
• BSA must be >0.67 and <2.5 m2
• Male and female participants of reproductive potential must agree to effective contraception during and after study treatment. See Appendices I and II for further guidance for participants receiving vismodegib
• ANC ≥ 1000/mm^3 (after G-CSF discontinued)
• Platelets ≥ 50,000/mm^3 (without support)
• Hgb ≥ 8 g/dL (with or without transfusion support)
• Serum creatinine ≤ 1.5 mg/dL
• Total bilirubin ≤ 1.5X the institutional ULN
• SGPT (ALT) ≤ 2.5X the institutional ULN
• SGOT (AST) ≤ 2.5X the institutional ULN
• Alkaline Phosphatase ≤ 1.5X the institutional ULN
• Serum albumin ≥ 2.5 g/dL Participants in the exercise intervention portion of the study must meet all criteria below:
• Must be ≥ 5 years and < 22 years at the time of enrollment
• Must have no congenital heart disease
• Must be capable of performing the exercise intervention at the time of baseline assessment as determined by the treating physician. Participants in the cognitive remediation intervention portion of the study must meet all criteria below:
• Completed protocol-directed radiation therapy
• ≥5 years at the time of remediation intervention consent or age is greater than or equal to 22 years and less than 40 years and patient has SHH medulloblastoma
• English as primary language and training aide who speaks English available to participate in required sessions
• No significant cognitive impairment operationalized as either an IQ < 70 for children with St. Jude SJMB12 study baseline testing or based on clinician judgment baseline IQ missing
• No major sensory or motor impairment that would preclude valid cognitive testing (e.g., unresolved posterior fossa syndrome, blindness, poorly controlled seizures/photosensitive epilepsy, psychosis) or a major psychological condition that would preclude completion of the intervention (e.g., significant oppositionality, autism spectrum disorder, severe anxiety or depressive symptoms)

1. Between 15 and 49 years of age, inclusive, at Visit 1. 2. Anti-nuclear antibody (ANA) titer of 1:80, or greater, as determined by immunofluorescence assay (IFA). 3. Participants must have at least one (but not three or more) additional clinical or laboratory criterion from the 2012 Systemic Lupus International Collaborating Clinics (SLICC) classification criteria. 4. Written informed consent (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study. 1. The subject meets the 2012 SLICC classification criteria for SLE at Visit 1 (i.e., ANA plus 3 other criteria, or ANA plus biopsy-proven lupus nephritis). 2. The subject has been diagnosed with another autoimmune disorder, other than autoimmune thyroid conditions. 3. The subject has fibromyalgia, based on clinical history and exam. 4. The subject has previously been or is currently being treated with oral antimalarial agents including hydroxychloroquine, chloroquine, or quinacrine. 5. The subject is currently or has been treated with immunosuppressive, immune modifying, or cytotoxic medications as listed in Section 7.2. 6. Use of any investigational agent within the preceding 12 months. 7. History of primary immunodeficiency. 8. Active bacterial, viral, fungal, or opportunistic infection. 9. Evidence of infection with human immunodeficiency virus (HIV), Hepatitis B, or Hepatitis C. 10. Concomitant malignancy or history of malignancy with the exception of adequately treated basal or squamous cell carcinoma of the skin, or carcinoma in situ of the cervix. 11. The subject has significant findings on ophthalmological examination that, in the opinion of the examining Ophthalmologist, prevent safe use of hydroxychloroquine. 12. The subject has other contraindications to treatment with hydroxychloroquine including pre-existing ocular disease, hepatic impairment, psoriasis, porphyria, or allergy to the drug or class. 13. Co-morbidities requiring systemic corticosteroid therapy greater than 10 mg of prednisone per day, or equivalent, or a change in corticosteroid dose within the 3 months prior to Visit 1. 14. Starting, stopping, or changing the dose of over the counter or prescription non-steroidal anti-inflammatory drugs (NSAIDs) in the three months prior to Visit 1. 15. Pregnant, breastfeeding, or unwilling to practice birth control during participation in the study. 16. Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data. 17. Inability to comply with the study visit schedule and procedures.

• Patient must be newly diagnosed or relapsed/progressed with a brain tumor that has not previously been treated with CRT
• Note: COG therapeutic study participation is not required for ACCL10P1 enrollment
• Patient enrollment must occur within 4 calendar months following completion of CRT
• Reminder: after patient enrollment, baseline testing followed by randomization must occur within 2-4 months after completion of CRT
• The patient must have an identified caregiver who is willing and able to oversee the training practice during the intervention period (ie, for 5-9 weeks starting approximately 3 months after completion of CRT)
• The patient must have access to a telephone and phone number where they can be reached
• The patient and caregiver must have reading, speaking and listening comprehension of English
• All patients and/or their parents or legal guardians must sign a written informed consent (patient assent is also recommended when applicable according to each institution?s policy)
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met
• Patients with pontine glioma are not eligible
• Patients with an estimated survival of less than one year are not eligible
• Patients with a history of traumatic brain injury prior to tumor diagnosis are not eligible
• Patients with a motor, visual, or auditory handicap that prevents computer use (e.g., unresolved posterior fossa syndrome) are not eligible to participate in this trial
• Patients with full-scale intelligence quotient (IQ) < 70 per previous testing OR existing diagnosis of/educational classification as a student with an intellectual disability are not eligible

• Physician-diagnosed peanut allergy;
• A peanut Skin Prick Test (SPT) with a wheal largest diameter ≥8 mm;
• A specific-peanut Immunoglobulin E (IgE) ≥14 kU/L;
• Subjects following a strict peanut-free diet.
• Generalized dermatologic disease
• Spirometry forced expiratory volume in 1 second (FEV1) <80% of the predicted value, or peak expiratory flow (PEF) <80% of predicted value;
• Receiving β-blocking agents, angiotensin-converting enzyme inhibitors, angiotensin-receptor blockers, calcium channel blockers or tricyclic antidepressant therapy; anti-tumor necrosis factor drugs or anti-IgE drugs (such as omalizumab) or any biologic immunomodulatory therapy;
• Prior or concomitant history of any immunotherapy to any food allergy (for example EPIT, OIT, SLIT, or specific oral tolerance induction).

Inclusion criteria: Patients with Pompe disease who previously completed a neoGAA study. The patient and/or their parent/legal guardian is willing and able to provide signed informed consent, and the patient, if <18 years of age, is willing to provide assent if deemed able to do so. The patient (and patient's legal guardian if patient is <18 years of age) must have the ability to comply with the clinical protocol. The patient, if female and of childbearing potential, must have a negative pregnancy test [urine beta-human chorionic gonadotropin] at baseline. Exclusion criteria: The patient is concurrently participating in another clinical study using investigational treatment. The patient, in the opinion of the Investigator, is unable to adhere to the requirements of the study. The patient has clinically significant organic disease (with the exception of symptoms relating to Pompe disease), including clinically significant cardiovascular, hepatic, pulmonary, neurologic, or renal disease, or other medical condition, serious intercurrent illness, or extenuating circumstance that, in the opinion of the Investigator, precludes participation in the study or potentially decreases survival. The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

• All patients must have a pathologically confirmed diagnosis of neuroblastoma, < 30.99 years of age and classified as high risk at the time of diagnosis. Exception: patients who are initially diagnosed as non-high-risk neuroblastoma, but later converted (and/or relapsed) to high risk neuroblastoma are also eligible.
• All patients must be in complete remission (CR): 1. No evidence of residual disease on scan 2. No evidence of disease metastatic to bone marrow.
• Specific Criteria by Stratum: Stratum 1/1B: All patients must have completed standard upfront therapy that replicates treatment which patients who were enrolled on ANBL0032 received, including: intensive induction chemotherapy and (if feasible) resection of primary tumor, followed by: consolidation with high-dose chemotherapy with stem cell transplant and radiotherapy, followed by: immunotherapy with Ch14.18/IL-2/GM-CSF (dinutuximab) and retinoic acid;. All subjects on Stratum 1/B must have also met the following criteria: • A pre-transplant disease status evaluation that met International Neuroblastoma Response Criteria (INRC) for CR (complete response), VGPR (very good partial response), or PR (partial response) for primary site, soft tissue metastases and bone metastases. Patients who meet those criteria must also meet the protocol-specified criteria for bone marrow response prior to transplant as outlined below: No more than 10% tumor involvement (based on total nucleated cellular content) seen on any specimen from a bilateral bone marrow aspirate/biopsy. Stratum 2: Neuroblastoma that is in first complete remission following standard upfront therapy different from that described for Stratum 1. Stratum 3: Neuroblastoma that failed to have a response of at least PR following induction chemotherapy and surgical resection of the primary tumor, but that has achieved CR following additional therapy. Stratum 4: Patients who have achieved a second or subsequent CR following relapse(s).
• Pre-enrollment tumor survey: Prior to enrollment on this study, a determination of mandatory disease staging must be performed:
• Tumor imaging studies including
• Bilateral bone marrow aspirates and biopsy
• This disease assessment is required for eligibility and preferably should be done within 2 weeks prior to enrollment, but must be done within a maximum of 4 weeks before enrollment.
• Timing from prior therapy: Stratum 1/1B: Enrollment no later than 60 days after completion of upfront therapy, (last dose of cis-retinoic acid) with a maximum of 6 cycles of cis-retinoic acid maintenance therapy. Stratum 2, 3 and 4: Enrollment no later than 60 days from last dose of the most recent therapy.
• Patients must have a Lansky or Karnofsky Performance Scale score of > 50% and patients must have a life expectancy of ≥ 2 months.
• All clinical and laboratory studies for organ functions to determine eligibility must be performed within 7 days prior to enrollment unless otherwise indicated below.
• Patients must have adequate organ functions at the time of registration:
• Hematological: Total absolute phagocyte count ≥1000/μL
• Liver: Subjects must have adequate liver function
• Renal: Adequate renal function
• Females of childbearing potential must have a negative pregnancy test. Patients of childbearing potential must agree to use an effective birth control method. Female patients who are lactating must agree to stop breast-feeding.
• Written informed consent in accordance with institutional and FDA (food and drug administration) guidelines must be obtained from all subjects (or patients' legal representative).
• BSA (Body Surface Area) of <0.25 m2.
• Investigational Drugs: Subjects who are currently receiving another investigational drug are excluded from participation.
• Anti-cancer Agents: Subjects who are currently receiving other anticancer agents are not eligible. Subjects must have fully recovered from hematological and bone marrow suppression effects of prior chemotherapy.
• Infection: Subjects who have an uncontrolled infection are not eligible until the infection is judged to be well controlled in the opinion of the investigator.
• Subjects who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study, or in whom compliance is likely to be suboptimal, should be excluded.

Key 1. Age 21 years or younger at the time of initial ALL diagnosis and age > 1 year at the time of study treatment initiation. 2. Subjects must have a diagnosis of relapsed or refractory ALL with ≥ 5% blasts in the bone marrow (M2 or M3 disease), with or without extramedullary disease. a. To be eligible, subjects must have had 1 or more prior therapeutic attempts, defined as:
• Early first relapse (< 36 months from original diagnosis) after achieving a CR (B-ALL) or first relapse any time following the original diagnosis after achieving a CR (T-ALL)
• First refractory bone marrow relapse occurring any time after original diagnosis after achieving a CR (ie, ≥1 failed attempt to induce a second remission) OR
• Relapse after achieving a CR following the first or subsequent relapse (i.e., ≥ 2 relapses) OR
• Failing to achieve a CR from original diagnosis after at least 1 induction attempt 3. Subjects must have fully recovered from the acute toxic effects of all previous chemotherapy, immunotherapy, or radiotherapy treatment before enrollment. 4. Subjects must have a serum creatinine level that is ≤ 1.5 × institutional upper limit of normal (ULN) according to age. If serum creatinine level is > 1.5 × ULN, the subject must have a calculated creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70 mL/min/1.73 m2, or for children<2 years of age, ≥ 50mL/min/1.73 m2. 5. Adequate liver function, defined as both of the following: 1. Total bilirubin ≤ 1.5 × institutional ULN except in the presence of Gilbert Syndrome 2. Alanine aminotransferase (ALT) ≤ 5 × institutional ULN 6. Performance status: Karnofsky or Lansky scores ≥ 50 for subjects > 16 years old or ≤ 16 years old, respectively. Key 1. Known allergy to any of the drugs used in the study. (Subjects who have had a previous allergy to PEG-asparaginase are eligible and if able, may receive Erwinia asparaginase at the investigator's discretion.) 2. Known allergy to Captisol (a cyclodextrin derivative used to solubilize carfilzomib) 3. Left ventricular fractional shortening < 30% 4. History of ≥ Grade 2 pancreatitis 5. Active graft‑versus‑host disease requiring systemic treatment 6. Positive culture for or other clinical evidence of infection with bacteria or fungus within 14 days of the initiation of study treatment 7. Down Syndrome 8. Prior therapy restrictions: 1. Subjects must have completed therapy with granulocyte‑colony stimulating factor (G‑CSF) or other myeloid growth factors at least 7 days before study treatment initiation, or at least 14 days before study treatment initiation, if pegylated myeloid growth factors were administered. 2. Subjects must have completed any type of active immunotherapy (e.g., tumor vaccines) at least 42 days before study treatment initiation. 3. Subjects must have received the last dose of a non-monoclonal antibody biologic agent at least 7 days before study treatment initiation. 4. At least 3 antibody half‑lives must have elapsed since the last dose of monoclonal antibody (e.g., 66 days for rituximab, 69 days for epratuzumab and 36 days for inotuzumab) before subjects may initiate study treatment. 5. Subjects must not have received other antineoplastic agents with therapeutic intent, excluding hydroxyurea and antimetabolites administered as part of maintenance chemotherapy, within 7 days prior to study treatment initiation 9. Hepatitis B infection with positive hepatitis B DNA

Each patient must meet the following criteria to be enrolled in this study. 1. Is a child or an adolescent of 10 to <18 years old, at Visit 1 (Screening) 2. Has been diagnosed with type 2 diabetes mellitus per American Diabetes Association diagnostic criteria 3. HbA1c of 6.5% to 11.0%, inclusive, in patients not taking insulin/SU, and of 6.5% to 12.0%, inclusive, in patients taking insulin/SU, at Visit 1 (Screening) 4. Has a C-peptide of >0.6 ng/L at Visit 1 (Screening) 5. Has been treated with diet and exercise alone or in combination with a stable dose of an oral antidiabetic agent (e.g., metformin and/or SU) and/or insulin for their type 2 diabetes for at least 2 months prior to Visit 1 (Screening) 6. Has a fasting plasma glucose concentration <280 mg/dL (15.5 mmol/L) at Visit 1 (Screening) Patients who meet any of the following criteria will be excluded from the study. 1. Has a clinically significant medical condition that could potentially affect study participation and/or personal well-being, as judged by the Investigator, including but not limited to the following conditions: 1. Hepatic disease (defined by aspartate or alanine transaminase >3.0 times the upper limit of normal (ULN) 2. Renal disease or serum creatinine >1.5 mg/dL (132.6 µmol/L) (males) or 1.4 mg/dL (123.8 µmol/L) (females) 3. Gastrointestinal disease deemed significant by the Investigator 4. Organ transplantation 5. Chronic infection (e.g., tuberculosis, human immunodeficiency virus, hepatitis B virus, or hepatitis C virus) 6. Clinically significant malignant disease (with the exception of basal and squamous cell carcinoma of the skin) within 5 years of Visit 1 (Screening) 2. Has positive antibody titers to glutamic acid decarboxylase (GAD65) or islet cell antigen (ICA512) at Visit 1 (Screening) 3. Has a personal or family history of elevated calcitonin, calcitonin >100 ng/L, medullary thyroid carcinoma, or multiple endocrine neoplasia-2 4. Has ever used exenatide (exenatide once weekly [exenatide LAR], exenatide BID, BYETTA, or any other formulation) or any glucagon-like peptide-1 (GLP-1) receptor agonist (e.g., liraglutide [Victoza®]) 5. Is pregnant

• Patient suffered cardiac arrest requiring chest compressions for at least 2 minutes (120 seconds) with ROSC/ROC; AND
• Age greater than 48 hours (with a corrected gestational age of at least 38 weeks) and less than 18 years; AND
• Patient requires continuous mechanical ventilation; AND
• The cardiac arrest was unplanned (i.e., not part of cardiac surgical procedure)
• The parent or legal guardian does not speak English or Spanish (the only two languages in which VABS II is standardized)
• Randomization is impossible within six hours of ROSC; OR
• Patient is on extracorporeal membrane oxygenation (ECMO) when arrest occurs; OR
• Continuous infusion of epinephrine or norepinephrine at very high doses (≥2 ug/kg/minute) received immediately prior to randomization; OR Glasgow Coma Scale motor response of five (localizing pain or for infants less than two years, withdraws to touch) or six (obeys commands, or for infants, normal spontaneous movement) prior to randomization; OR
• History of a prior cardiac arrest with chest compressions for at least two minutes during the current hospitalization but outside the 6 hour window for randomization; OR
• Pre-existing terminal illness with life expectancy < 12 months; OR
• Lack of commitment to aggressive intensive care therapies including do not resuscitate orders and other limitations to care; OR
• Cardiac arrest was associated with severe brain, thoracic, or abdominal trauma; OR
• Active and refractory severe bleeding prior to randomization; OR
• Near drowning in ice water with patient core temperature ≤32 °C on presentation; OR
• Patient is pregnant; OR
• Patient participation in a concurrent interventional trial whose protocol, in the judgment of the THAPCA investigators, prevents effective application of one or both THAPCA therapeutic treatment arms, or otherwise significantly interferes with carrying out the THAPCA protocol; OR
• Patient is newborn with acute birth asphyxia; OR _ Patient cared for in a neonatal intensive care unit (NICU) after arrest (ie, would not be admitted to PICU); OR
• Patient has sickle cell anemia; OR
• Patient known to have pre-existing cryoglobulinemia; OR
• Central nervous system tumor with ongoing chemotherapy or radiation therapy; OR
• Chronic hypothermia secondary to hypovolemic, pituitary, or related condition for which body temperature is consistently below 37 °C ; OR progressive degenerative encephalopathy; OR
• Any condition in which direct skin surface cooling would be contraindicated, such as large burns, decubitus ulcers, cellulitis, or other conditions with disrupted skin integrity (NOTE: patients with open chest CPR should be included but placement of cooling mattresses will be modified as needed); OR
• Previous enrollment in the THAPCA Trials.

Key
• Chronic heart failure resulting from left ventricular systolic dysfunction, and receiving chronic HF therapy (if not newly diagnosed)
• NYHA classification II-IV (older children: 6 to <18 years old) or Ross CHF classification II-IV (younger children: < 6 years old)
• Systemic left ventricular ejection fraction ≤ 40% or fractional shortening ≤20%
• For Part 1 study: Patients must be treated with an ACEI or ARB prior to screening. Patients in Group 1 and 2 must be currently treated with the dose equivalent of at least enalapril 0.2 mg/kg prior to the LCZ696 3.1 mg/kg administration. Group 3 patients will participate in LCZ696 0.8 mg/kg and not LCZ696 3.1 mg/kg.
• Biventricular physiology with systemic left ventricle Key
• Patient with single ventricle or systemic right ventricle
• Patients listed for heart transplantation (as United Network for Organ Sharing status 1A) or hospitalized waiting for transplant (while on inotropes or with ventricular assist device)
• Sustained or symptomatic dysrhythmias uncontrolled with drug or device therapy
• Patients that have had cardiovascular surgery or percutaneous intervention to palliate or correct congenital cardiovascular malformations within 3 months of the screening visit. Patients anticipated to undergo corrective heart surgery during the 12 months after entry into Part 2
• Patients with unoperated obstructive or severe regurgitant valvular (aortic, pulmonary, or tricuspid) disease, or significant systemic ventricular outflow obstruction or aortic arch obstruction
• Patients with restrictive or hypertrophic cardiomyopathy
• Active myocarditis
• Renal vascular hypertension (including renal artery stenosis)
• Moderate-to severe obstructive pulmonary disease
• Serum potassium > 5.3 mmol/L
• History of angioedema
• Allergy or hypersensitivity to ACEI / ARB

• 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 1000/uL circulating blasts; alternatively, CD22 expression may be documented by immunohistochemistry of a bone marrow biopsy specimen
• Patients with and without Down syndrome are eligible and must have 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 Patients with Down syndrome are also eligible with:
• First relapse with no prior re-induction attempt
• 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 non-hematologic 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
• Myelosuppressive chemotherapy:
• No waiting period will be required for patients receiving standard "maintenance-like" chemotherapy including oral mercaptopurine, weekly low-dose oral methotrexate, and intermittent vincristine; otherwise, at least 14 days must have elapsed since the completion of cytotoxic therapy, with the exceptions of hydroxyurea or corticosteroids used for cytoreduction
• Intrathecal cytotoxic therapy: No waiting period is required for patients having received intrathecal cytarabine, methotrexate, and/or hydrocortisone; intrathecal chemotherapy given at the time of diagnostic lumbar puncture (LP) to evaluate for relapse prior to study enrollment is allowed
• At least 7 days must have elapsed since the completion of therapy with a growth factor; at least 14 days must have elapsed after receiving pegfilgrastim
• At least 7 days must have elapsed since completion of therapy with a biologic agent (including tyrosine kinase inhibitors); for agents that have known adverse events occurring beyond 7 days after administration, this period prior to enrollment must be extended beyond the time during which adverse events are known to occur
• At least 3 half-lives must have elapsed since prior therapy that included a monoclonal antibody with the exception of blinatumomab; patients must have been off blinatumomab infusion 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
• >= 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
• 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 versus (vs.) host disease (GVHD)
• At least 30 days must have elapsed from the last chimeric antigen receptor (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 other extramedullary site of relapse
• Patients who have been previously treated with inotuzumab ozogamicin
• History of allergic reaction attributed to compounds of similar or biologic composition to inotuzumab ozogamicin or other agents in the study
• 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 medications (meds)
• 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, as a premedication for InO 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, Shwachman syndrome, or any other known bone marrow failure syndrome
• Women of childbearing potential should be advised to avoid becoming pregnant while receiving InO; women should not breast-feed during treatment with InO 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 of starting protocol therapy
• 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 InO
• Men with female partners of childbearing potential should use effective contraception during treatment with InO and for at least 5 months after the last dose of InO
• Lactating females are not eligible unless they agree not to breastfeed their infants

• Males and females must weigh >= 40 Kg
• Patient must have had a cancer diagnosis < 22 years of age, irrespective of current age
• Patient must have a lifetime cumulative anthracycline dose of >= 250 mg/m^2 DOXOrubicin equivalent without the protection of dexrazoxane (Zinecard) therapy; the anthracycline dose threshold must be met as part of the treatment of a cancer that was diagnosed at < 22 years of age
• Note: Institutional records (e.g., clinic note, treatment summary, chemotherapy roadmap) can be used to document lifetime receipt of anthracycline dose
• Patient must have completed cancer treatment >= 2 years prior to study enrollment
• Receiving treatment for cardiomyopathy or heart failure
• Ejection fraction of < 50% (by radionuclide angiogram or echocardiogram) or shortening fraction of < 25% (by echocardiogram)
• Note: for instances where both are reported, and one is below the threshold, the site will have the option to re-measure it centrally at the core lab
• Uncorrected primary obstructive or severe regurgitative valvular disease:
• Nondilated (restrictive); or
• Hypertrophic cardiomyopathy; or
• Significant systemic ventricular outflow obstruction
• Sustained or symptomatic ventricular dysrhythmias uncontrolled with drug therapy or implantable device
• Significant conduction defects (i.e. second or third degree atrio-ventricular block or sick sinus syndrome)
• Bradycardia: heart rate < 50 beats per minute (BPM)
• Use of an investigational drug or beta adrenergic blockers, including metoprolol, sotalol, within 30 days of enrollment
• History of drug sensitivity or allergic reaction to alpha or beta-blockers
• Low resting systolic blood pressure: < 90 mmHg
• Use of any other blood pressure lowering medication for treatment of hypertension within 30 days of enrollment except calcium channel blockers and diuretics
• History or current clinical evidence of moderate-to-severe obstructive pulmonary disease or reactive airway diseases (i.e. asthma) requiring therapy
• Serum aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) > 3 times upper limit of institutional normal
• Gastrointestinal, or biliary disorders that could impair absorption, metabolism, or excretion of orally administered medications
• Endocrine disorders (such as primary aldosteronism, pheochromocytoma, hyper- or hypothyroidism) not controlled with medication
• Uncontrolled diabetes (controlled diabetes per the American Diabetes Association and International Diabetes Center's Glycemic Target Goals is hemoglobin A1C < 7%)
• Anemia (hematocrit < 28%)
• Currently using select CYP2D6 inhibitor or inducer medications
• Inability to swallow pills
• Female patients who are pregnant are not eligible; women of childbearing potential require a negative pregnancy test prior to starting study drug
• Lactating females are not eligible unless they have agreed to not breastfeed their infants
• Sexually active female patients of reproductive potential are not eligible unless they agree to use an effective contraceptive method during study and for 2 months after stopping the study drug; abstinence is an acceptable method of birth control
• 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

• Eligible subjects will be as follows: 1. 4 weeks to 17 years of age, 2. fulfill the American Heart Association case definition for complete or incomplete KD, 3. have had fever (T ≥38°C) for 3 to 10 days prior to initial IVIG treatment, 4. have fever (T ≥38°C orally or rectally) between 36 hours and 7 days after end of the first IVIG infusion without other likely cause 1. Patient treated with infliximab or steroids for present illness (pts who received oral steroids as outpatients prior to KD diagnosis but who otherwise qualify for the study will not be excluded) 2. Known prior infection with tuberculosis, coccidiomycosis, or histoplasmosis.

• Advanced solid tumor for which, in the opinion of the investigator, no other standard therapy offers greater benefit.
• A solid tumor diagnosis in the setting of:
• a) a documented NTRK fusion and a clinical history of relapse following a response to a prior TRK inhibitor
• b) a documented NTRK fusion unresponsive to a prior TRK inhibitor
• c) a documented NTRK fusion and a clinical history of intolerance to a prior TRK inhibitor
• NTRK gene fusions will be identified in a CLIA-certified (or equivalent) laboratory. Patients with infantile fibrosarcoma (IFS) or congenital mesoblastic nephroma (CMN) may be enrolled based on an ETV6+ FISH test without identifying NTRK3.
• Performance Status: Eastern Cooperative Oncology Group (ECOG) score ≤ 3 (age ≥ 16 years) or Lansky Performance Score (LPS) ≥ 40% (age < 16 years). If enrolled with primary CNS tumor to be assessed by RANO, Karnofsky Performance Score (KPS) (age ≥ 16 years) or LPS (age < 16 years) ≥ 50%.
• Life expectancy > 4 weeks.
• Adequate hematologic, hepatic and renal function.
• Patients with stable CNS primary tumor, brain metastases, or treated spinal cord compression are eligible if neurological symptoms have been stable for 7 days prior to the first dose of selitrectinib
• Ability to receive study drug orally or by enteral administration
• Prior exposure to second generation TRK inhibitor (e.g. selitrectinib, TPX-0005). Exception is in case patient presented intolerance to the second generation TRK inhibitor agent and the duration of exposure was less than 28 days. No previous treatment with selitrectinib is allowed.
• Concurrent treatment with a strong CYP3A4 inhibitor or inducer, consumption of grapefruit juice or Seville oranges, or drugs associated with QT prolongation.
• Clinically significant active cardiovascular disease or history of myocardial infarction within 3 months prior to planned start of selitrectinib, or prolongation of QT interval corrected for heart rate (QTc interval) >480 milliseconds within past 6 months
• Major surgery within 7 days of enrollment
• Uncontrolled systemic bacterial, fungal or viral infection.
• Pregnancy or lactation.
• Known hypersensitivity to selitrectinib or Ora-Sweet® SF and OraPlus® for patients receiving liquid formulation.

1. The participant must be able to provide written, personally signed, and dated informed consent to participate in the study before completing any study-related procedures. As applicable, a parent/both parents or legally authorized representative (LAR) must provide signature of informed consent and there must be documentation of assent by the participant before completing any study-related procedures. 2. The participant must be a recipient of hematopoietic stem cell or solid organ transplant. 3. The participant must have a documented CMV infection in whole blood or plasma, with a screening value of greater than or equal to (>=) 2730 international units per milliliter (IU/mL) in whole blood or >= 910 IU/mL in plasma in 2 consecutive assessments, separated by at least 1 day, as determined by local or central specialty laboratory quantitative polymerase chain reaction (qPCR) or comparable quantitative CMV DNA results. Both samples should be taken within 14 days prior to randomization with second sample obtained within 5 days prior to randomization. The same laboratory and same sample type (whole blood or plasma) must be used for these assessments. 4. The participant must have a current CMV infection that is refractory to the most recently administered of the four anti-CMV treatment agents. Refractory is defined as documented failure to achieve greater than (>) 1 log10 (common logarithm to base 10) decrease in CMV DNA level in whole blood or plasma after a 14 day or longer treatment period with intravenous (IV) ganciclovir/oral valganciclovir, IV foscarnet, or IV cidofovir. a. Participants with documentation of 1 or more CMV genetic mutations associated with resistance to ganciclovir/valganciclovir, foscarnet, and/or cidofovir must also meet the definition of refractory CMV infection. 5. The Investigator must be willing to treat the participant with at least one of the available anti-CMV drugs (ganciclovir, valganciclovir, foscarnet, or cidofovir). Note: Combination therapy with foscarnet and cidofovir is not permitted in the investigator-assigned anti-CMV treatment (IAT) arm due to the potential for serious nephrotoxicity. 6. The participant must be >= 12 years of age at the time of consent. 7. The participant must weigh >= 35 kilogram (kg). 8. The participant must have all of the following results as part of screening laboratory assessments (results from either the central laboratory or a local laboratory can be used for qualification): 1. Absolute neutrophil count (ANC) >= 1000/ millimeter cube (mm^3) (1.0 x 10^9/liter [L]) 2. Platelet count >= 25,000/mm^3 [25 x 10^9/L], 3. Hemoglobin >= 8 grams per deciliter (g/dL). 4. Estimated glomerular filtration rate (eGFR) > 30 (milliliters per minute (mL/min) /1.73 square meter (m^2) as assessed by Modification of Diet in Renal Disease (MDRD) formula for participants >= 18 years of age or Schwartz formula for participants less than (<) 18 years of age. 9. The participant must have a negative serum beta-human chorionic gonadotropin (beta-HCG) pregnancy test at screening, if a female of child bearing potential. Additional urine pregnancy tests may be done per institutional requirements. Sexually active females of child bearing potential must agree to comply with any applicable contraceptive requirements of the protocol. If male, must agree to use an acceptable method of birth control, as defined in the protocol, during the study treatment administration period and for 90 days afterward if treated with maribavir, ganciclovir, valganciclovir, or cidofovir and for 180 days afterward if treated with foscarnet. 10. The participant must be able to swallow tablets, or receive tablets crushed and/or dispensed in water via nasogastric or orogastric tube. 11. The participant must be willing and have an understanding and ability to fully comply with study procedures and restrictions defined in the protocol. 12. The participant must be willing to provide necessary samples (example [e.g,] biopsy) for the diagnosis of tissue invasive CMV disease at baseline as determined by the Investigator. 13. The participant must have a life expectancy of >= 8 weeks. 1. Have a current CMV infection that is considered refractory or resistant due to inadequate adherence to prior anti-CMV treatment, to the best knowledge of the Investigator. 2. Require ganciclovir, valganciclovir, foscarnet, or cidofovir administration for conditions other than CMV when study treatment is initiated (example: herpes simplex virus (HSV) coinfection requiring use of any of these agents after the randomization) or would need a coadministration with maribavir for CMV infection. NOTE: A participant who is not continuing with the same anti-CMV drug(s) (ganciclovir, valganciclovir or foscarnet) for the study treatment (if randomized to the investigator assigned anti-CMV treatment arm), must discontinue their use before the first dose of study drug. If participant is currently being treated with cidofovir and is assigned another anti-CMV therapy by the investigator, the participant must discontinue its use at least 14 days prior to randomization at Visit 2/Day 0 and the first dose of study treatment. 3. Be receiving leflunomide, letermovir, or artesunate when study treatment is initiated. NOTE: Participants receiving leflunomide must discontinue the use at least 14 days prior to randomization at Visit 2/Day 0 and the first dose of study treatment. Participants receiving letermovir must discontinue use at least 3 days prior to the first dose of study treatment. Participants receiving artesunate must discontinue the use prior to the first dose of study treatment. 4. Have severe vomiting, diarrhea, or other severe gastrointestinal illness within 24 hours prior to the first dose of study treatment that would preclude administration of oral/enteral medication. 5. Have known hypersensitivity to the active substance or to an excipient for a study treatment. 6. Have tissue invasive CMV disease with central nervous system involvement including the retina (example, CMV retinitis). 7. Have serum aspartate aminotransferase (AST) > 5 times upper limit of normal (ULN) at screening, or serum alanine aminotransferase (ALT) > 5 times ULN at screening, or total bilirubin >= 3.0 x ULN at screening (except for documented Gilbert's syndrome), by local or central lab. Participants with biopsy confirmed CMV hepatitis will not be excluded from study participation despite AST or ALT > 5 times ULN at screening. 8. Have known positive results for human immunodeficiency virus (HIV). Participants must have a confirmed negative HIV test result within 3 months of study entry or, if unavailable, be tested by a local laboratory during the screening period. 9. Require mechanical ventilation or vasopressors for hemodynamic support at the time of enrollment. 10. Be female and pregnant or breast feeding. 11. Have previously received maribavir. 12. Have received any investigational agent with known anti-CMV activity within 30 days before initiation of study treatment or investigational CMV vaccine at any time. 13. Have received any unapproved agent or device within 30 days before initiation of study treatment. 14. Have active malignancy with the exception of nonmelanoma skin cancer. Participants who have had a hematopoietic stem cell transplant (HSCT) and who experience relapse or progression of the malignancy as per investigator's opinion are not to be enrolled. 15. Be undergoing treatment for acute or chronic hepatitis C. 16. Have any clinically significant medical or surgical condition that, in the investigator's opinion, could interfere with the interpretation of study results, contraindicate the administration of the assigned study treatment, or compromise the safety or well-being of the participant.

• Patients in Group F must have a body surface area (BSA) >= 0.6 m^2
• 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
• Patients must be newly diagnosed with histologically-proven primary pediatric hepatic malignancies including hepatoblastoma or hepatocellular carcinoma, except as noted below; patients with a diagnosis of hepatocellular neoplasm, not otherwise specified, should be classified and treated per hepatoblastoma treatment arms; note that rapid central pathology review is required in some cases; please note: all patients with histology as assessed by the institutional pathologist consistent with pure small cell undifferentiated (SCU) HB will be required to have testing for INI1/SMARCB1 by immunohistochemistry (IHC) according to the practices at the institution
• Patients with histology consistent with pure SCU must have positive INI1/SMARCB1 staining
• For all Group A patients, WDF status as determined by rapid review will be used to further stratify patients to Group A1 or A2
• For Groups B, C and D, rapid review is required if patients are either >= 8 years of age or have an alphafetoprotein (AFP) =< 100 at diagnosis
• For all Groups E and F patients, rapid central pathology review is required
• In emergency situations when a patient meets all other eligibility criteria and has had baseline required observations, but is too ill to undergo a biopsy safely, the patient may be enrolled without a biopsy
• Clinical situations in which emergent treatment may be indicated include, but are not limited to, the following circumstances:
• Anatomic or mechanical compromise of critical organ function by tumor (e.g., respiratory distress/failure, abdominal compartment syndrome, urinary obstruction, etc.)
• Uncorrectable coagulopathy
• For a patient to maintain eligibility for AHEP1531 when emergent treatment is given, the following must occur:
• The patient must have a clinical diagnosis of hepatoblastoma, including an elevated alphafetoprotein (AFP), and must meet all AHEP1531 eligibility criteria at the time of emergent treatment
• Patient must be enrolled on AHEP1531 prior to initiating protocol therapy; a patient will be ineligible if any chemotherapy is administered prior to AHEP1531 enrollment
• Note: If the patient receives AHEP1531 chemotherapy emergently PRIOR to undergoing a diagnostic biopsy, pathologic review of material obtained in the future during either biopsy or surgical resection must either confirm the diagnosis of hepatoblastoma or not reveal another pathological diagnosis to be included in the analysis of the study aims
• Patients may have had surgical resection of the hepatic malignancy prior to enrollment; all other anti-cancer therapy for the current liver lesion is prohibited
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 60 mL/min/1.73 m^2 or
• A serum creatinine based on age/gender as follows:
• Age: maximum serum creatinine (mg/dL)
• 1 month to < 6 months: 0.4 (male and female)
• 6 months to < 1 year: 0.5 (male and female)
• 1 to < 2 years: 06 (male and female)
• 2 to < 6 years: 0.8 (male and female)
• 6 to < 10 years: 1 (male and female)
• 10 to < 13 years: 1.2 (male and female)
• 13 to < 16 years: 1.5 (male), 1.4 (female)
• >= 16 years: 1.7 (male), 1.4 (female)
• Total bilirubin =< 5 x upper limit of normal (ULN) for age
• Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) < 10x upper limit of normal (ULN) for age
• Shortening fraction of >= 28% by echocardiogram (for patients on doxorubicin-containing regimens [Groups C, D, E2, and F] assessed within 8 weeks prior to study enrollment) or
• Ejection fraction of >= 47% by echocardiogram or radionuclide angiogram (for patients on doxorubicin-containing regimens [Groups C, D, E2, and F] assessed within 8 weeks prior to study enrollment)
• Group F patients only: QT/corrected QT (QTc) interval =< 450 milliseconds for males and =< 470 milliseconds for females (assessed within 8 weeks prior to study enrollment)
• Normal pulmonary function tests (including diffusion capacity of the lung for carbon monoxide [DLCO]) if there is clinical indication for determination (e.g. dyspnea at rest, known requirement for supplemental oxygen) (for patients receiving chemotherapy [Groups A2, B, C, D, E2, F]); for patients who do not have respiratory symptoms or requirement for supplemental oxygen, pulmonary function tests (PFTs) are NOT required
• 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
• Prior chemotherapy or tumor directed therapy (i.e. radiation therapy, biologic agents, local therapy (embolization, radiofrequency ablation, and laser); therefore, patients with a pre-disposition syndrome who have a prior malignancy are not eligible
• Patients who are currently receiving another investigational drug
• Patients who are currently receiving other anticancer agents
• Patients with uncontrolled infection
• Patients who previously received a solid organ transplant, other than those who previously received an orthotopic liver transplantation (OLT) as primary treatment of their hepatocellular carcinoma
• Patients with hypersensitivity to any drugs on their expected treatment arm
• Group C: Patients who have known deficiency of dihydropyrimidine dehydrogenase (DPD)
• Group D:
• Patients with chronic inflammatory bowel disease and/or bowel obstruction
• Patients with concomitant use of St. John's wort, which cannot be stopped prior to the start of trial treatment
• Group F:
• Patients with peripheral sensitive neuropathy with functional impairment
• Patients with a personal or family history of congenital long QT syndrome
• This criteria apply ONLY to patients who will receive chemotherapy (all groups other than Groups A1 and E1):
• Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs; a pregnancy test is required for female patients of childbearing potential
• Lactating females who plan to breastfeed their infants
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation
• Note for Group F: patients of childbearing potential should use effective birth control during treatment with sorafenib and for at least 2 weeks after stopping treatment

1. ≥ 12 years of age at the time Informed Consent/ Assent is signed. 2. Weight ≥ 40 kg. 3. FEV1 ≥ 40% predicted and < 100% predicted in the last 12 months. 4. Physician-initiated treatment with an IV antibiotic 2 or 3 times in the last 12 months for a new PEx or physician-initiated treatment with an IV antibiotic 1 time in the last 12 months plus physician-initiated treatment with oral antibiotic(s) 1 or more times in the past 12 months for a new PEX. 1. Severe or unstable CF at screening or Visit 1. 2. Any of the following values for laboratory tests at screening: 1. A positive pregnancy test. 2. Hemoglobin < 10 g/dL in males and < 9 g/dL in females. 3. Neutrophils < 1.0 x 10^9 /L. 4. Platelets < 75 x 10^9/L. 5. Creatinine clearance < 50 mL/min according to Modification of Diet in Renal Disease (MDRD) Study equation. 6. Serum transaminases > 2.5 x upper limit of normal. 3. Any medical condition or concurrent medical therapies at screening or Visit 1 that may put the subject at greater safety risk, influence response to study drug or interfere with study assessments.

Eligibility criteria: Infants are eligible if they meet all of the following criteria:
• ≥ 36 0/7 weeks PMA by best obstetric estimate AND birth weight of ≥ 2000g
• postnatal age ≤7 days (168 hours of age)
• invasive mechanical ventilation (defined as ventilation with an endotracheal tube) and
• one arterial blood gas with an OI ≥ 10 (after tracheal tube obstruction and other easily resolvable mechanical causes for increased OI are ruled out) on the most recent arterial blood gas within 12 hours prior to the time of randomization.
• if an arterial blood gas is not available at the time of randomization, a preductal OSI of ≥ 5 can be used as an inclusion criterion instead of OI ≥ 10; (the OSI should be based on the most recent preductal pulse oximetry recording and must be within 12 hours of randomization)
• postnatal blood gas with PCO2 ≤ 80 mmHg (arterial, capillary or venous blood gas) on the most recent blood gas sample obtained within 12 hours prior to randomization Note: Criteria (iv) to (vi) must be met at the most recent analysis within 12 hours prior to randomization. Infants are ineligible if they meet any of the following criteria:
• known hypertrophic cardiomyopathy
• Note 1: infants of diabetic mothers with asymmetric septal hypertrophy can be included as long as there is no evidence of obstruction to left ventricular outflow tract on echocardiogram,
• Note 2: infants with other acyanotic congenital heart disease (CHD) and CDH may be included in the study and will be a predetermined subgroup for analysis)
• cyanotic CHD
•transposition of great arteries (TGA), total anomalous pulmonary venous return (TAPVR), partial anomalous pulmonary venous return (PAPVR), truncus arteriosus (TA), tetralogy of Fallot (TOF), single ventricle physiology
•hypoplastic left heart syndrome (HLHS), tricuspid atresia, critical pulmonic stenosis or atresia etc.,
• enrolled in conflicting clinical trials (such as a randomized controlled blinded trial of another pulmonary vasodilator therapy); Note: mothers enrolled in fetal tracheal occlusion studies such as FETO may be enrolled if permitted by investigators of the fetal tracheal occlusion study; [FETO refers to fetoscopic endoluminal tracheal occlusion and involves occlusion of fetal trachea with a balloon device at mid-gestation and subsequent removal in later gestation]
• infants with bilateral CDH o Note 3: infants with anterior and central defects are included in the study
• associated abnormalities of the trachea or esophagus (trachea-esophageal fistula, esophageal atresia, laryngeal web, tracheal agenesis)
• renal dysfunction (with serum creatinine > 2 mg/dL not due to maternal factors) or severe oligohydramnios associated with renal dysfunction at randomization; renal dysfunction may be secondary to renal anomalies or medical conditions such as acute tubular necrosis
• severe systemic hypotension (mean blood pressure < 35 mm Hg for at least 2 h with a vasoactive inotrope score of > 30)
• decision is made to provide comfort/ palliative care and not full treatment
• Intracranial bleed (including the following findings on the cranial ultrasound)
• Cerebral parenchymal hemorrhage
• Blood/echodensity in the ventricle with distension of the ventricle
• Periventricular hemorrhagic infarction
• Posterior fossa hemorrhage
• Cerebellar hemorrhage
• persistent thrombocytopenia (platelet count < 80,000/mm3) despite blood product administration on the most recent blood draw prior to randomization
• coagulopathy (PT INR > 1.7) despite blood product administration on the most recent blood draw (if checked
•there is no reason to check PT for the purpose of this study)
• aneuploidy associated with short life span (such as trisomy 13 or 18) will not be included in the study (infants with trisomy 21 can be included in the study)
• elevated arterial, venous or capillary PCO2 > 80 mmHg in spite of maximal ventilator support (including high frequency ventilation) on the most recent blood gas obtained within 12 hours prior to randomization
• use of milrinone infusion prior to randomization (the use of other inhaled pulmonary vasodilators such as iNO, inhaled epoprosternol, inhaled PGE1 and oral such as endothelin receptor antagonists is permitted
•Note: it is unlikely to be on oral pulmonary vasodilators early in the course of CDH)
• ongoing therapy with parenteral (intravenous or subcutaneous) pulmonary vasodilators such as IV/SQ prostacyclin analogs (Epoprostenol
•Flolan or Treprostinil
•Remodulin or PGE1
•Alprostadil) or IV phosphodiesterase 5 inhibitors (sildenafil
•Revatio) at the time of randomization. In addition, initiation of therapy with these two classes of parenteral medications during the first 24 hours of study drug initiation is not permitted and will be considered a protocol deviation. The risk of systemic hypotension is high during the first 24 hours of study-drug (milrinone) infusion and hence parenteral administration of other pulmonary vasodilators is avoided to minimize risk of hypotension.
• Subjects already on ECMO or patients who are being actively considered for ECMO by the neonatal or surgical team
• attending (neonatal, critical care or surgical) refusal for participation in the trial (including concern about presence of hemodynamic instability)

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