Imatinib Mesylate and Combination Chemotherapy in Treating Patients With Newly Diagnosed Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia

NCT03007147 — Phase 3, Active not recruiting, 352 participants, Children's Oncology Group

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International Phase 3 Trial in Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia (Ph+ALL) Testing Imatinib in Combination With Two Different Cytotoxic Chemotherapy Backbones

RegistryNCT03007147
StatusActive not recruiting
PhasePhase 3
Study typeInterventional; randomized, parallel, masking: none, treatment
Enrollment352 (Actual)
SponsorChildren's Oncology Group (Network); collaborators: National Cancer Institute (NCI), Universita degli Studi di Milano-Bicocca
ConditionsAcute Lymphoblastic Leukemia, B Acute Lymphoblastic Leukemia, Mixed Phenotype Acute Leukemia, T Acute Lymphoblastic Leukemia
InterventionsAllogeneic Hematopoietic Stem Cell Transplantation, Calaspargase Pegol, Cyclophosphamide, Cytarabine, Daunorubicin Hydrochloride, Dexamethasone, Dexrazoxane Hydrochloride, Doxorubicin, Etoposide, Filgrastim, Ifosfamide, Imatinib Mesylate, Laboratory Biomarker Analysis, Leucovorin Calcium, Levoleucovorin, Mercaptopurine, Methotrexate, Methylprednisolone, Pegaspargase, Prednisolone, Questionnaire Administration, Therapeutic Hydrocortisone, Thioguanine, Vincristine Sulfate (Procedure, drug, biological, other)
Datesstart 2017-08-08, primary completion 2026-06-30, completion 2034-09-30 (estimated), first posted 2017-01-02, last updated 2026-10-05
Locations226 sites in United States, Australia, Austria, Belgium, Canada, Chile, Czechia, Finland and 11 more countries

Related Papers Related Patents Related Grants Related Experts
All trials for Acute Lymphoblastic Leukemia All trials for B Acute Lymphoblastic Leukemia All trials of Allogeneic Hematopoietic Stem Cell Transplantation All trials of Calaspargase Pegol

-Summary

This randomized phase III trial studies how well imatinib mesylate works in combination with two different chemotherapy regimens in treating patients with newly diagnosed Philadelphia chromosome positive acute lymphoblastic leukemia (ALL). Imatinib mesylate has been shown to improve outcomes in children and adolescents with Philadelphia chromosome positive (Ph+) ALL when given with strong chemotherapy, but the combination has many side effects. This trial is testing whether a different chemotherapy regimen may work as well as the stronger one but have fewer side effects when given with imatinib. The trial is also testing how well the combination of chemotherapy and imatinib works in another group of patients with a type of ALL that is similar to Ph+ ALL. This type of ALL is called "ABL-class fusion positive ALL", and because it is similar to Ph+ ALL, is thought it will respond well to the combination of agents used to treat Ph+ ALL.

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+Detailed description

PRIMARY OBJECTIVE:

I. To compare disease-free survival (DFS) of standard risk (SR) pediatric Philadelphia chromosome (Ph)+ acute lymphoblastic leukemia (ALL) treated with continuous imatinib mesylate (imatinib) combined with either a high-risk Children's Oncology Group (COG) ALL chemotherapy backbone or the more intensive European (Es)PhALL chemotherapy backbone.

SECONDARY OBJECTIVES:

I. To compare DFS of SR pediatric Ph+ and ABL-class fusion positive ALL patients treated with continuous imatinib combined with either a high-risk COG-ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone.

II. To determine the feasibility of administration of imatinib after allogeneic hematopoietic stem cell transplantation (HSCT) in high risk (HR) Ph+ ALL patients.

III. To determine event-free survival (EFS) of HR pediatric Ph+ ALL patients treated with EsPhALL chemotherapy, HSCT in first complete remission and post-HSCT imatinib.

IV. To compare rates of grade 3 or higher infections in standard risk (SR) Ph+ ALL patients between the two randomized arms.

V. To evaluate EFS and overall survival (OS) of all eligible Ph+ALL patients enrolled on the study.

VI. To evaluate OS in SR Ph+ ALL patients. VII. To evaluate OS in HR Ph+ ALL patients. VIII. To evaluate EFS and OS of all eligible ABL-class fusion positive ALL patients enrolled on the study.

EXPLORATORY OBJECTIVES:

I. To describe the toxicities associated with post-HSCT administration of imatinib in HR Ph+ALL patients.

II. To evaluate the long-term toxicities in SR Ph+ ALL patients treated with chemotherapy plus imatinib (no transplant), overall and between both randomized arms.

III. To determine prognostic significance of minimal residual disease (MRD) in Ph+ ALL at various time points during therapy.

IIIa. To evaluate MRD in HR patients just prior to HSCT and then at regular intervals post-HSCT and explore the association of these measurements with long-term outcome.

IIIb. To evaluate concordance of MRD assessments made by IGH-T cell receptor (TCR) polymerase chain reaction (PCR) assay and next generation sequencing (NGS) assays.

IV. To determine and validate if IKZF1 deletions alone (IKZF1del) or with other transcription factor deletions (ie, IKZF1 plus subtype \[IKZF1plus\]) or other identified genetic lesions predict poor outcomes in Ph+/ABL-class Ph-like ALL in patients treated on AALL1631.

V. To determine the frequency and prognostic significance of p190 and p210 BCR::ABL1 fusion variants in pediatric Ph+ ALL/ABL-class Ph-like ALL.

VI. To measure adherence to oral chemotherapeutic agents (imatinib, 6-mercaptopurine and methotrexate) during the maintenance phase in SR Ph+ ALL patients.

VIa. To identify factors associated with poor adherence. VIb. To determine association between relapse risk and adherence to each oral chemotherapeutic agent (separately and combined).

VII. To measure adherence to imatinib after allogeneic HSCT in HR Ph+ ALL patients and identify factors associated with poor adherence.

VIII. To compare DFS of SR ABL-class fusion positive ALL patients treated with continuous imatinib combined with either a high-risk COG-ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone.

IX. Other secondary and exploratory aims described above for Ph+ ALL patients (either SR or HR), if applicable, will be evaluated in ABL-class fusion positive ALL patients.

X. Secondary and exploratory aims described above for Ph+ ALL patients (either SR or HR), if applicable and feasible, will be evaluated in the super set of Ph+ and ABL-class fusion positive ALL patients.

XI. To determine the potential therapeutic impact of major secondary events via pharmacologic inhibitor screens in existing/engineered cell models of Ph+ and ABL-class Ph-like ALL harboring secondary events and to test the in vivo activity of the most compelling candidate compounds from pilot studies using patient-derived xenograft (PDX) models established from Ph+ and ABL-class Ph-like ALL samples collected from patients treated on AALL1631.

XII. To decipher the molecular and cellular heterogeneity of chronic myelogenous leukemia (CML)-like versus typical Ph+ ALL via single-cell genomics and functional assays and investigate CML-like phenotypes via single-cell ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) sequencing to identify distinct transcriptomic and mutational profiles that will provide novel opportunities for diagnostic and therapeutic interventions.

OUTLINE:

INDUCTION IA PART 1: Patients receive induction IA according to standard of care on days 1-14.

INDUCTION IA PART 2: Patients receive imatinib mesylate orally (PO) once daily (QD) or twice daily (BID) on days 15-33, prednisolone PO twice daily (BID) or methylprednisolone intravenously (IV) on days 15-28, vincristine sulfate IV over 1 minute on days 15 and 22, daunorubicin hydrochloride IV over 1-15 minutes on days 15 and 22, and methotrexate intrathecally (IT) on day 29.

INDUCTION IB: Patients receive imatinib mesylate PO QD or BID on days 1-35, cyclophosphamide IV over 30-60 minutes on days 1 and 28, mercaptopurine PO on days 1-28, cytarabine IV or subcutaneously (SC) on days 3-6, 10-13, 17-20, and 24-27, and methotrexate IT on days 10 and 24.

POST-INDUCTION THERAPY: Patients classified as standard risk are randomized to 1 of 2 arms. Patients with high risk are assigned to Arm C.

ARM A (SR patients assigned to ARM A):

CONSOLIDATION BLOCK 1: Patients receive imatinib mesylate PO QD or BID on days 1-21, methotrexate IT, cytarabine IT, and therapeutic hydrocortisone IT on day 1, high dose methotrexate IV over 24 hours on day 1, vincristine sulfate IV over 1 minute on days 1 and 6, dexamethasone PO BID or IV on days 1-5, cyclophosphamide IV over 30-60 minutes on days 2-4, leucovorin calcium or levoleucovorin PO or IV on days 3 and 4, high dose cytarabine IV over 3 hours and pegaspargase or calaspargase pegol IV over 1-2 hours on day 5, and filgrastim SC or IV on days 7-11 in the absence of disease progression or unexpected toxicity.

CONSOLIDATION BLOCK 2: Patients receive imatinib mesylate PO QD or BID on days 1-21, methotrexate IT, cytarabine IT, and therapeutic hydrocortisone IT on day 1, high dose methotrexate IV over 24 hours on day 1, dexamethasone PO BID or IV on days 1-5, vincristine sulfate IV over 1 minute on days 1 and 6, ifosfamide IV over 1 hour on days 2-4, leucovorin calcium or levoleucovorin PO or IV on days 3 and 4, dexrazoxane hydrochloride IV over 15 minutes and daunorubicin hydrochloride IV over 1-15 minutes on day 5, pegaspargase or calaspargase pegol IV over 1-2 hours on day 6, and filgrastim SC or IV on days 7-11 in the absence of disease progression or unexpected toxicity.

CONSOLIDATION BLOCK 3: Patients receive imatinib mesylate PO QD or BID on days 1-21, high dose cytarabine IV over 3 hours on days 1-3, dexamethasone PO BID or IV on days 1-5, etoposide IV over 1-2 hours on days 3-5, methotrexate IT, cytarabine IT, and therapeutic hydrocortisone IT on day 5, pegaspargase or calaspargase pegol IV over 1-2 hours on day 6, and filgrastim SC or IV on days 7-11 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION 1 PART 1: Patients receive imatinib mesylate PO QD or BID on days 1-35, methotrexate IT on day 1, dexamethasone PO BID or IV on days 1-7 and 15-21, vincristine sulfate IV over 1 minute, dexrazoxane hydrochloride IV over 15 minutes, and doxorubicin IV over 3-15 minutes on days 8, 15, 22, and 29, and pegaspargase or calaspargase pegol IV over 1-2 hours on day 8 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION 1 PART 2: Patients receive imatinib mesylate PO QD on days 36-63, cyclophosphamide IV over 30-60 minutes on day 36, thioguanine PO on days 36-49, cytarabine IV over 1-30 minutes or SC on days 38-41 and 45-48, and methotrexate IT on days 38 and 45in the absence of disease progression or unexpected toxicity.

INTERIM MAINTENANCE: Patients receive imatinib mesylate PO QD or BID on days 1-28, methotrexate PO on days 1, 8, 15, and 22, and mercaptopurine PO on days 1-28 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION 2 PART 1: Patients receive imatinib mesylate PO QD or BID on days 1-35, methotrexate IT on day 1, dexamethasone PO BID or IV on days 1-7 and 15-21, vincristine sulfate IV over 1 minute, dexrazoxane hydrochloride IV over 15 minutes, and doxorubicin IV over 3-15 minutes on days 8, 15, 22, and 29, and pegaspargase or calaspargase pegol IV over 1-2 hours on day 8 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION 2 PART 2: Patients receive imatinib mesylate PO QD on days 36-49, cyclophosphamide IV over 30-60 minutes on day 36, thioguanine PO on days 36-49, cytarabine IV over 1-30 minutes or SC on days 36-39 and 43-46, and methotrexate IT on days 36 and 43 in the absence of disease progression or unexpected toxicity.

MAINTENANCE: Patients receive imatinib mesylate PO QD or BID on days 1-84, methotrexate PO once weekly (QW) and IT on days 1 and 43 of cycles 1, 2, and 3, and mercaptopurine PO on days 1-84. Cycles with imatinib mesylate and mercaptopurine repeat every 84 days for up to 104 weeks from the start of Induction IA in the absence of disease progression or unexpected toxicity.

ARM B (SR PATIENTS ASSIGNED TO ARM B):

INTERIM MAINTENANCE: Patients receive imatinib mesylate PO QD or BID on days 1-63, vincristine sulfate IV over 1 minute and high dose methotrexate IV over 24 hours on days 1, 15, 29, and 43, leucovorin calcium or levoleucovorin PO or IV on days 3-4, 17-18, 31-32, and 45-46, mercaptopurine PO on days 1-56, and methotrexate IT on days 1 and 29 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION PART 1: Patients receive imatinib mesylate PO QD or BID on days 1-28, methotrexate IT on day 1, dexamethasone PO BID or IV on days 1-7 and 15-21, vincristine sulfate IV over 1 minute, dexrazoxane hydrochloride IV over 15 minutes, and doxorubicin IV over 3-15 minutes on days 1, 8, and 15, and pegaspargase or calaspargase pegol IV over 1-2 hours or IM on day 4 in the absence of disease progression or unexpected toxicity.

DELAYED INTENSIFICATION PART 2: Patients receive imatinib mesylate PO QD on days 29-56, cyclophosphamide IV over 30-60 minutes on day 29, thioguanine PO on days 29-42, cytarabine IV over 1-30 minutes or SC on days 29-32 and 36-39, methotrexate IT on days 29 and 36, vincristine sulfate IV over 1 minute on days 43 and 50, and pegaspargase or calaspargase pegol IV over 1-2 hours on day 43 in the absence of disease progression or unexpected toxicity.

INTERIM MAINTENANCE WITH CAPIZZI METHOTREXATE: Patients receive imatinib mesylate PO QD or BID on days 1-56, vincristine sulfate IV over 1 minute and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41, methotrexate IT on days 1 and 31, and pegaspargase or calaspargase pegol IV over 1-2 hours on days 2 and 23 in the absence of disease progression or unexpected toxicity.

MAINTENANCE: Patients receive imatinib mesylate PO QD or BID on days 1-84, vincristine sulfate IV over 1 minute on days 1, 29, and 57, prednisolone PO BID (or methylprednisolone IV for cycle 1 and 2) on days 1-5, 29-33, and 57-61, mercaptopurine PO on days 1-84, methotrexate PO QW, and methotrexate IT on day 1 (and day 29 for cycle 1 and 2). Cycles repeat every 84 days for up to 104 weeks from the start of Induction IA in the absence of disease progression or unexpected toxicity.

ARM C (HR PATIENTS):

CONSOLIDATION BLOCK 1: Patients receive imatinib mesylate, methotrexate, cytarabine, therapeutic hydrocortisone, high dose methotrexate, vincristine sulfate, dexamethasone, leucovorin calcium or levoleucovorin, high dose cytarabine, and pegaspargase or calaspargase pegol as in Arm A Consolidation Block 1, and filgrastim SC or IV on day 7 in the absence of disease progression or unexpected toxicity.

CONSOLIDATION BLOCK 2: Patients receive imatinib mesylate, methotrexate, cytarabine, therapeutic hydrocortisone, high dose methotrexate, dexamethasone, vincristine sulfate, ifosfamide, leucovorin calcium or levoleucovorin, dexrazoxane hydrochloride, daunorubicin hydrochloride, pegaspargase or calaspargase pegol, and filgrastim as Arm A Consolidation Block 2 in the absence of disease progression or unexpected toxicity.

CONSOLIDATION BLOCK 3: Patients receive imatinib mesylate, dexamethasone, etoposide, methotrexate, cytarabine, therapeutic hydrocortisone, pegaspargase or calaspargase pegol, and filgrastim as in Arm A Consolidation Block 3, and high dose cytarabine IV over 3 hours on days 1-2 in the absence of disease progression or unexpected toxicity.

HSCT: Patients undergo HSCT on day 0. Patients who do not proceed to HSCT receive Delayed Intensification 1, Interim Maintenance, Delayed Intensification 2, and Maintenance as in Arm A.

POST-HSCT: Patients receive imatinib mesylate PO QD or BID starting on days 56-365 in the in the absence of disease progression or unexpected toxicity.

After completion of study treatment, patients are followed up every year for 3 years.

+Arms and interventions

ArmTypeInterventionsDescription
Arm A (imatinib mesylate, EsPhALL chemotherapy)ExperimentalDrug: Calaspargase Pegol; Drug: Cyclophosphamide; Drug: Cytarabine; Drug: Daunorubicin Hydrochloride; Drug: Dexamethasone; Drug: Dexrazoxane Hydrochloride; Drug: Doxorubicin; Drug: Etoposide; Biological: Filgrastim; Drug: Ifosfamide; Drug: Imatinib Mesylate; Other: Laboratory Biomarker Analysis; Drug: Leucovorin Calcium; Drug: Levoleucovorin; Drug: Mercaptopurine; Drug: Methotrexate; Drug: Methylprednisolone; Drug: Pegaspargase; Drug: Prednisolone; Other: Questionnaire Administration; Drug: Therapeutic Hydrocortisone; Drug: Thioguanine; Drug: Vincristine SulfateSee Detailed Description
Arm B (imatinib mesylate, COG/BFM chemotherapy)ExperimentalDrug: Calaspargase Pegol; Drug: Cyclophosphamide; Drug: Cytarabine; Drug: Dexamethasone; Drug: Dexrazoxane Hydrochloride; Drug: Doxorubicin; Drug: Imatinib Mesylate; Other: Laboratory Biomarker Analysis; Drug: Leucovorin Calcium; Drug: Levoleucovorin; Drug: Mercaptopurine; Drug: Methotrexate; Drug: Methylprednisolone; Drug: Pegaspargase; Drug: Prednisolone; Other: Questionnaire Administration; Drug: Thioguanine; Drug: Vincristine SulfateSee Detailed Description.
Arm C (imatinib mesylate, EsPhALL chemotherapy, HSCT)ExperimentalProcedure: Allogeneic Hematopoietic Stem Cell Transplantation; Drug: Calaspargase Pegol; Drug: Cyclophosphamide; Drug: Cytarabine; Drug: Daunorubicin Hydrochloride; Drug: Dexamethasone; Drug: Dexrazoxane Hydrochloride; Drug: Doxorubicin; Drug: Etoposide; Biological: Filgrastim; Drug: Ifosfamide; Drug: Imatinib Mesylate; Other: Laboratory Biomarker Analysis; Drug: Leucovorin Calcium; Drug: Levoleucovorin; Drug: Mercaptopurine; Drug: Methotrexate; Drug: Methylprednisolone; Drug: Pegaspargase; Drug: Prednisolone; Other: Questionnaire Administration; Drug: Therapeutic Hydrocortisone; Drug: Thioguanine; Drug: Vincristine SulfateSee Detailed Description
  • Allogeneic Hematopoietic Stem Cell Transplantation (Procedure), also known as Allogeneic, Allogeneic Hematopoietic Cell Transplantation, Allogeneic Stem Cell Transplantation, HSC, HSCT, Stem Cell Transplantation, Allogeneic: Undergo HSCT
  • Calaspargase Pegol (Drug), also known as Asparaginase (Escherichia coli Isoenzyme II), Conjugate with alpha-(((2,5-Dioxo-1-pyrrolidinyl)oxy)carbonyl)-omega-methoxypoly(oxy-1,2-ethanediyl), Asparlas, Calaspargase Pegol-mknl, EZN-2285, SC-PEG E. Coli L-Asparaginase, Succinimidyl Carbonate Monomethoxypolyethylene Glycol E. coli L-Asparaginase: Given IV
  • Cyclophosphamide (Drug), also known as (-)-Cyclophosphamide, 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate, Asta B 518, B 518, B-518, B518, Carloxan, Ciclofosfamida, Ciclofosfamide, Cicloxal, Clafen, Claphene, CP monohydrate, CTX, CYCLO-cell, Cycloblastin, Cycloblastine, Cyclophospham, Cyclophosphamid monohydrate, Cyclophosphamide Monohydrate, Cyclophosphamidum, Cyclophosphan, Cyclophosphane, Cyclophosphanum, Cyclostin, Cyclostine, Cytophosphan, Cytophosphane, Cytoxan, Fosfaseron, Frindovyx, Genoxal, Genuxal, Ledoxina, Mitoxan, Neosar, Revimmune, Syklofosfamid, WR 138719, WR- 138719, WR-138719, WR138719: Given IV
  • Cytarabine (Drug), also known as .beta.-Cytosine arabinoside, 1-.beta.-D-Arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-.beta.-D-Arabinofuranosylcytosine, 1-Beta-D-arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-Beta-D-arabinofuranosylcytosine, 1.beta.-D-Arabinofuranosylcytosine, 2(1H)-Pyrimidinone, 4-Amino-1-beta-D-arabinofuranosyl-, 2(1H)-Pyrimidinone, 4-amino-1.beta.-D-arabinofuranosyl-, Alexan, Ara-C, ARA-cell, Arabine, Arabinofuranosylcytosine, Arabinosylcytosine, Aracytidine, Aracytin, Aracytine, Beta-Cytosine Arabinoside, CHX-3311, Cytarabinum, Cytarbel, Cytosar, Cytosine Arabinoside, Cytosine-.beta.-arabinoside, Cytosine-beta-arabinoside, Erpalfa, Starasid, Tarabine PFS, U 19920, U-19920, Udicil, WR-28453: Given IV, SC, or IT
  • Daunorubicin Hydrochloride (Drug), also known as Cerubidin, Cerubidine, Cloridrato de Daunorubicina, Daunoblastin, Daunoblastina, Daunoblastine, Daunomycin Hydrochloride, Daunomycin, hydrochloride, Daunorubicin.HCl, Daunorubicini Hydrochloridum, FI-6339, Ondena, RP-13057, Rubidomycin Hydrochloride, Rubilem: Given IV
  • Dexamethasone (Drug), also known as Aacidexam, Adexone, Aknichthol Dexa, Alba-Dex, Alin, Alin Depot, Alin Oftalmico, Amplidermis, Anemul mono, Auricularum, Auxiloson, Baycadron, Baycuten, Baycuten N, Cortidexason, Cortisumman, Decacort, Decadrol, Decadron, Decadron DP, Decalix, Decameth, Decasone R.p., Dectancyl, Dekacort, Deltafluorene, Deronil, Desamethasone, Desameton, Dexa-Mamallet, Dexa-Rhinosan, Dexa-Scheroson, Dexa-sine, Dexacortal, Dexacortin, Dexafarma, Dexafluorene, Dexalocal, Dexamecortin, Dexameth, Dexamethasone Intensol, Dexamethasonum, Dexamonozon, Dexapos, Dexinoral, Dexone, Dinormon, Dxevo, Fluorodelta, Fortecortin, Gammacorten, Hemady, Hexadecadrol, Hexadrol, LenaDex, Lokalison-F, Loverine, Methylfluorprednisolone, Millicorten, Mymethasone, Orgadrone, Spersadex, TaperDex, Visumetazone, ZoDex: Given PO or IV
  • Dexrazoxane Hydrochloride (Drug), also known as Cardioxane, Totect, Zinecard: Given IV
  • Doxorubicin (Drug), also known as Adriablastin, Hydroxydaunomycin, Hydroxyl Daunorubicin, Hydroxyldaunorubicin: Given IV
  • Etoposide (Drug), also known as Demethyl Epipodophyllotoxin Ethylidine Glucoside, EPEG, Lastet, Toposar, Vepesid, VP 16, VP 16-213, VP 16213, VP-16, VP-16-213, VP-16213, VP16, VP16213: Given IV
  • Filgrastim (Biological), also known as Filgrastim Biosimilar Filgrastim-sndz, Filgrastim Biosimilar Tbo-filgrastim, Filgrastim XM02, Filgrastim-aafi, Filgrastim-ayow, Filgrastim-sndz, G-CSF, Granix, Neupogen, Neutroval, Nivestim, Nivestym, r-metHuG-CSF, Recombinant Methionyl Human Granulocyte Colony Stimulating Factor, Releuko, rG-CSF, Tbo-filgrastim, Tevagrastim, XM02, Zarxio: Given SC or IV
  • Ifosfamide (Drug), also known as Asta Z 4942, Asta Z-4942, Cyfos, Holoxan, Holoxane, Ifex, IFO, IFO-Cell, Ifolem, Ifomida, Ifomide, Ifosfamidum, Ifoxan, IFX, Iphosphamid, Iphosphamide, Iso-Endoxan, Isoendoxan, Isophosphamide, Mitoxana, MJF 9325, MJF-9325, Naxamide, Seromida, Tronoxal, Z 4942, Z-4942: Given IV
  • Imatinib Mesylate (Drug), also known as CGP 57148, CGP 57148B, CGP-57148, CGP-57148B, CGP57148, CGP57148B, Gleevec, Glivec, Imarech, Imat, Imkeldi, STI 571, STI-571, STI571: Given PO
  • Laboratory Biomarker Analysis (Other): Correlative studies
  • Leucovorin Calcium (Drug), also known as Adinepar, Calcifolin, Calcium (6S)-Folinate, Calcium Folinate, Calcium Leucovorin, Calfolex, Calinat, Cehafolin, Citofolin, Citrec, Citrovorum Factor, Cromatonbic Folinico, Dalisol, Disintox, Divical, Ecofol, Emovis, Factor, Citrovorum, Flynoken A, Folaren, Folaxin, FOLI-cell, Foliben, Folidan, Folidar, Folinac, Folinate Calcium, folinic acid, Folinic Acid Calcium Salt Pentahydrate, Folinoral, Folinvit, Foliplus, Folix, Imo, Lederfolat, Lederfolin, Leucosar, leucovorin, Rescufolin, Rescuvolin, Tonofolin, Wellcovorin: Given PO or IV
  • Levoleucovorin (Drug), also known as CL-307,782, Elvorine, Isovorin, Levofolene, Levorin, Isovorin, Khapzory, L-Leucovorin, Levofolinate, Levofolinic acid: Given PO or IV
  • Mercaptopurine (Drug), also known as 3H-Purine-6-thiol, 6 MP, 6 Thiohypoxanthine, 6 Thiopurine, 6-Mercaptopurine, 6-Mercaptopurine Monohydrate, 6-MP, 6-Purinethiol, 6-Thiopurine, 6-Thioxopurine, 6H-Purine-6-thione, 1,7-dihydro- (9CI), 7-Mercapto-1,3,4,6-tetrazaindene, Alti-Mercaptopurine, Azathiopurine, Bw 57-323H, Flocofil, Ismipur, Leukerin, Leupurin, Mercaleukim, Mercaleukin, Mercaptina, Mercaptopurinum, Mercapurin, Mern, NCI-C04886, Puri-Nethol, Purimethol, Purine, 6-mercapto-, Purine-6-thiol (8CI), Purine-6-thiol, monohydrate, Purinethiol, Purinethol, U-4748, WR-2785: Given PO
  • Mercaptopurine (Drug), also known as 3H-Purine-6-thiol, 6 MP, 6 Thiohypoxanthine, 6 Thiopurine, 6-Mercaptopurine, 6-Mercaptopurine Monohydrate, 6-MP, 6-Purinethiol, 6-Thiopurine, 6-Thioxopurine, 6H-Purine-6-thione, 1,7-dihydro- (9CI), 7-Mercapto-1,3,4,6-tetrazaindene, Alti-Mercaptopurine, Azathiopurine, Bw 57-323H, Flocofil, Ismipur, Leukerin, Leupurin, Mercaleukim, Mercaleukin, Mercaptina, Mercaptopurinum, Mercapurin, Mern, NCI-C04886, Puri-Nethol, Purimethol, Purine, 6-mercapto-, Purine-6-thiol (8CI), Purine-6-thiol, monohydrate, Purinethiol, Purinethol, U-4748, WR-2785: Given PO
  • Methotrexate (Drug), also known as Abitrexate, Alpha-Methopterin, Amethopterin, Brimexate, CL 14377, CL-14377, Emtexate, Emthexat, Emthexate, Farmitrexat, Fauldexato, Folex, Folex PFS, Jylamvo, Lantarel, Ledertrexate, Lumexon, Maxtrex, Medsatrexate, Metex, Methoblastin, Methotrexate LPF, Methotrexate Methylaminopterin, Methotrexatum, Metotrexato, Metrotex, Mexate, Mexate-AQ, MTX, Novatrex, Rheumatrex, Texate, Tremetex, Trexeron, Trixilem, WR-19039: Given IT
  • Methylprednisolone (Drug), also known as Adlone, Caberdelta M, DepMedalone, Depo Moderin, Depo-Nisolone, Duralone, Emmetipi, Esametone, Firmacort, Medlone 21, Medrate, Medrol, Medrol Veriderm, Medrone, Mega-Star, Meprolone, Methylprednisolonum, Metilbetasone Solubile, Metrocort, Metypresol, Metysolon, Predni-M-Tablinen, Prednilen, Radilem, Sieropresol, Solpredone, Summicort, Urbason, Veriderm Medrol, Wyacort: Given IV
  • Pegaspargase (Drug), also known as L-Asparaginase with Polyethylene Glycol, Oncaspar, Oncaspar-IV, PEG-Asparaginase, PEG-L-Asparaginase, PEG-L-Asparaginase (Enzon - Kyowa Hakko), PEGLA, Polyethylene Glycol L-Asparaginase, Polyethylene Glycol-L-Asparaginase: Given IV
  • Prednisolone (Drug), also known as (11beta)-11,17,21-Trihydroxypregna-1,4-diene-3,20-dione, .delta.1-Hydrocortisone, Adnisolone, Aprednislon, Capsoid, Cortalone, Cortisolone, Dacortin H, Decaprednil, Decortin H, Delta(1)Hydrocortisone, Delta- Cortef, Delta-Cortef, Delta-Diona, Delta-F, Delta-Phoricol, Delta1-dehydro-hydrocortisone, Deltacortril, Deltahydrocortisone, Deltasolone, Deltidrosol, Dhasolone, Di-Adreson-F, Dontisolon D, Estilsona, Fisopred, Frisolona, Gupisone, Hostacortin H, Hydeltra, Hydeltrasol, Klismacort, Kuhlprednon, Lenisolone, Lepi-Cortinolo, Linola-H N, Linola-H-Fett N, Longiprednil, Metacortandralone, Meti Derm, Meticortelone, Opredsone, Panafcortelone, Precortisyl, Pred-Clysma, Predeltilone, Predni-Coelin, Predni-Helvacort, Prednicortelone, Prednisolonum, Prelone, Prenilone, Sterane: Given PO
  • Questionnaire Administration (Other): Ancillary studies
  • Therapeutic Hydrocortisone (Drug), also known as Aeroseb-HC, Barseb HC, Barseb-HC, Cetacort, Cort-Dome, Cortef, Cortenema, Cortifan, Cortisol, Cortispray, Cortril, Dermacort, Domolene, Eldecort, Hautosone, Heb-Cort, Hydrocortisone, Hydrocortone, Hytone, Komed-HC, Nutracort, Proctocort, Rectoid: Given IT
  • Thioguanine (Drug), also known as 2-Amino 6MP, 2-Amino-1,7-dihydro-6H-purine-6-thione, 2-Amino-6-mercaptopurine, 2-Amino-6-purinethiol, 2-Aminopurin-6-thiol, 2-Aminopurine-6(1H)-thione, 2-Aminopurine-6-thiol, 2-Aminopurine-6-thiol Hemihydrate, 2-Mercapto-6-aminopurine, 6-Amino-2-mercaptopurine, 6-Mercapto-2-aminopurine, 6-Mercaptoguanine, 6-TG, 6H-Purine-6-thione, 2-amino-1,7-dihydro- (9CI), BW 5071, Lanvis, Tabloid, Thioguanine Hemihydrate, Thioguanine Hydrate, Tioguanin, Tioguanine, Wellcome U3B, WR-1141, X 27: Given PO
  • Vincristine Sulfate (Drug), also known as Kyocristine, Leurocristine Sulfate, Leurocristine, sulfate, Oncovin, Vincasar, Vincosid, Vincrex, Vincristine, sulfate: Given IV

+Outcome measures

Primary outcomes

  • Disease free survival (DFS) of Randomized Arms (standard risk [SR] Philadelphia chromosome [Ph+] acute lymphoblastic leukemia [ALL] patients) [Up to 3 years]: Three-year DFS and 95% confidence intervals (CI) of SR Ph+ ALL patients treated continuous imatinib mesylate with high risk Children's Oncology Group (COG)-ALL chemotherapy backbone or more intensive European (Es)PhALL chemotherapy backbone.

Secondary outcomes

  • DFS on Randomized Arms (SR Ph+ ALL and ABL-class fusion positive patients) [Up to 3 years]: Three-year DFS (time from randomization to relapse, second malignancy, or death in complete remission) and 95% CI of SR pediatric Ph+ and ABL-class fusion positive patients treated with continuous imatinib combined with either a high-risk COG-ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone.
  • Feasibility of post hematopoietic stem cell transplantation (HSCT) imatinib mesylate administration after allogenic HSCT in high risk Ph+ ALL patients [Up to 2 years]: The proportion of patients who receive at least 75% of intended doses.
  • Event free survival (EFS) of high risk pediatric Ph+ ALL patients treated with EsPhALL chemotherapy, HSCT in first complete remission, and post-HSCT imatinib mesylate [Up to 3 years]: Three-year EFS and 95% CI for high risk pediatric Ph+ ALL patients treated with EsPhALL chemotherapy, HSCT in first complete remission, and post-HSCT imatinib mesylate. EFS is defined as the time from the date of bone marrow for minimal residual disease (MRD) assessment at end-IB to first event (resistant disease \[MRD >= 10-2 or morphologic residual disease at end of consolidation block 3\], relapse, progressive disease \[i.e., MRD >= 10-2 at two post-HSCT time points separated by at least 2 weeks\], second malignancy, or death in complete remission), or time to last follow-up for patients without events.
  • Incidence of grade 3 or higher infections in standard risk Ph+ ALL patients in the two randomized arms [Up to 3 years]: Evaluated according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The rate of infections during the post IB/pre-maintenance phases of treatment will be described for each randomization group.
  • EFS of all Ph+ patients [Up to 3 years]: Three-year EFS and 95% CI for Ph+ ALL patients. EFS here is defined as the time from enrollment until resistant disease, relapse, progressive disease post-HSCT, second malignant, or death, whichever occurs first.
  • Overall survival (OS) of all Ph+ patients [Up to 3 years]: Three-year OS and 95% CI for Ph+ ALL patients. OS is defined as the time from study enrollment to death from any cause.
  • OS of SR Ph+ patients [Up to 3 years]: Three-year OS (time from randomization to death from any cause) and 95% CI of SR pediatric Ph+ patients
  • OS of SR Ph+ patients by randomization group [Up to 3 years]: Three-year OS (time from randomization to death from any cause) and 95% CI of SR pediatric Ph+ patients by randomization group: treated with continuous imatinib combined with either a high-risk COG-ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone.
  • OS of high risk Ph+ patients [Up to 3 years]: Three-year OS (time from the date of MRD assessment at end-IB to death from any cause) and 95% CI of HR pediatric Ph+ patients.
  • EFS of all eligibility ABL-class fusion positive ALL patients [Up to 3 years]: Three-year EFS (time from enrollment until resistant disease, relapse, progressive disease post-HSCT, second malignancy, or death, whichever occurs first) and 95% CI of ABL-class fusion positive patients.
  • OS of all eligibility ABL-class fusion positive ALL patients [Up to 3 years]: Three-year OS (the time from study enrollment to death from any cause) and 95% CI of ABL-class fusion positive patients.

Other outcomes

  • Incidence of toxicities associated with post-HSCT administration of imatinib mesylate [Up to 2 years]: Evaluated according to NCI CTCAE version 5.0. Frequencies of target toxicities in high risk patients after the initiation of post-HSCT imatinib mesylate will be described. For the high risk patients, the specific targeted toxicities will include grade 4 neutropenia, grade 4 thrombocytopenia, grade 3 or higher bilirubin, grade 4 or higher transaminitis, and grade 3 or higher infection.
  • Incidence of long-term toxicities in patients treated with chemotherapy plus imatinib mesylate (no transplant) in both arms [Up to 3 years]: Evaluated according to NCI CTCAE version 5.0. Frequencies of long-term toxicities will be described and differences between randomized arms will be explored. Specific long-term toxicities to be explored include cardiac (echocardiographic abnormalities, including decreased left ventricular (LV) function and decreased LV wall thickness), growth (linear height, bone age), and second malignant neoplasm.
  • MRD measured by IGH-T cell receptor (TCR) polymerase chain reaction (PCR) and next generation sequencing (NGS) assay [Up to 6 months]: For all patients, frequencies and prognostic significance (DFS, EFS, OS) will be explored for MRD levels (i.e., MRD negative, detectable at < 5 x 10\^-4, and dectectable at >= 5 x 10\^-4) at end of Induction IB.
  • MRD in high risk Ph+ patients measured by IGH-TCR PCR and NGS assay [Up to 3 years]: The outcome of high risk Ph+ patients will be described, including proportion of patients who achieve MRD-negativity just prior to HSCT, and at regular intervals post-HSCT. Associations between these findings and long-term outcomes (e.g., OS, DFS) will be explored.
  • MRD assessments made by IGH-TCR PCR assay and NGS assay [Up to 3 years]: Concordance of MRD assessments made by IGH-TCR PCR assay and NGS assay will be described and evaluated. Scatter plots and diagrams will be used to examine agreements and patterns of agreement or any differences found. Concordance will be explored both for the overall cohort, as well as by risk group. The increased sensitivity of the NGS will be closely examined to find cases where the MRD levels are detectable by NGS but undetectable by PCR, as well as cases in which one test yields results and the other does not (test failure). Prognostic relationships on outcomes for these subjects will be inspected.
  • IKZF1 deletions alone [Up to 3 years]: Will determine and validate if IKZF1 deletions alone predict poor outcomes in Ph+/ABL-class Ph-like ALL in patients treated on AALL1631.
  • IKZF1 deletions with other transcription factor deletions [Up to 3 years]: Will determine and validate if IKZF1 deletions with other transcription factor deletions predict poor outcomes in Ph+/ABL-class Ph-like ALL in patients treated on AALL1631.
  • Other identified genetic lesions [Up to 3 years]: Will determine and validate if other identified genetic lesions predict poor outcomes in Ph+/ABL-class Ph-like ALL in patients treated on AALL1631.
  • Frequency of p190 and p210 BCR::ABL1 fusion variants [Up to 3 years]: For both standard risk and high risk groups, frequencies and prognostic significance (OS, DFS) will be explored for p190 and p210 BCR::ABL1 fusion variants in pediatric Ph+ ALL/ABL-class Ph-like ALL.
  • Adherence to oral chemotherapeutic agents in standard risk Ph+ ALL patients [Up to 2 years]: Adherence to imatinib mesylate, 6-mercaptopurine, and methotrexate will be evaluated in COG-enrolled participants using an electronic monitoring device. Adherence rate will be computed for each month of adherence monitoring. Longitudinal binomial regression will be conducted using generalized estimating equation methods by modeling monthly adherence rate as an unstructured mean model using five indicator variables of time for the study months. Time in months will also be treated as a continuous variable to explore temporal trends in adherence rate. Compound symmetry will be assumed as the working correlation matrix over time. Covariates that will be considered for adjustment include those hypothesized to be predictors of adherence, annual household income, parental education, time since start of maintenance, risk classification for ALL, and imatinib, 6-mercaptopurine (6MP), and methotrexate dose-intensity.
  • Adherence to imatinib mesylate after allogeneic HSCT in high risk Ph+ ALL patients [Up to 2 years]: Longitudinal binomial regression will be conducted using generalized estimating equation methods by modeling monthly adherence rate as an unstructured mean model using five indicator variables of time for the study months. Time in months will also be treated as a continuous variable to explore temporal trends in adherence rate. Compound symmetry will be assumed as the working correlation matrix over time. Covariates that will be considered for adjustment include those hypothesized to be predictors of adherence, annual household income, parental education, time since start of maintenance, risk classification for ALL, and imatinib, 6MP, and methotrexate dose-intensity.
  • DFS of SR ABL-class fusion positive patients [Up to 3 years]: Three-year DFS (time from randomization to relapse, second malignancy, or death in complete remission) and 95% CI of SR pediatric ABL-class fusion positive patients treated with continuous imatinib combined with either a high-risk COG-ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone.
  • Secondary and exploratory aims applied to ABL-class fusion positive patients [Up to 3 years]: Secondary and exploratory aims described above for Ph+ ALL patients (either SR or HR), if applicable, will be evaluated in ABL-class fusion positive ALL patients.
  • Therapeutic impact of major secondary events [Up to 3 years]: Will determine the potential therapeutic impact of major secondary events via pharmacologic inhibitor screens in existing/engineered cell models of Ph+ and ABL-class Ph-like ALL harboring secondary events.
  • Secondary and exploratory aims applied to super-set of Ph+ and ABL-class fusion positive patients [Up to 3 years]: Secondary and exploratory aims described above for Ph+ ALL patients (either SR or HR), if applicable, will be evaluated in the superset of Ph+ and ABL-class fusion positive ALL patients.
  • In vivo activity [Up to 3 years]: Will test the in vivo activity of the most compelling candidate compounds from pilot studies using patient-derived xenograft models established from Ph+ and ABL-class Ph-like ALL samples collected from patients treated on AALL1631.
  • Molecular heterogeneity [Up to 3 years]: Will decipher the molecular heterogeneity of chronic myelogenous leukemia (CML)-like versus typical Ph+ ALL via single-cell genomics and functional assays.
  • Cellular heterogeneity [Up to 3 years]: Will decipher the cellular heterogeneity of CML-like versus typical Ph+ ALL via single-cell genomics and functional assays.
  • CML-like phenotypes [Up to 3 years]: Will investigate CML-like phenotypes via single-cell ribonucleic acid and deoxyribonucleic acid sequencing to identify distinct transcriptomic and mutational profiles that will provide novel opportunities for diagnostic and therapeutic interventions.

+Eligibility

Sex: All, ages: 1 Year to 21 Years

Inclusion Criteria:

* For patients enrolled on APEC14B1 prior to enrollment on AALL1631, the required diagnostic bone marrow sample has been fulfilled

  * For patients who have not previously enrolled on APEC14B1 prior to enrollment on AALL1631, a baseline diagnostic sample (or peripheral blood sample with blasts if marrow sample unavailable) must be available to develop an MRD probe
  * In addition, laboratory reports detailing evidence of BCR::ABL1 fusion or ABL-class fusion must be submitted for rapid central review within 72 hours of study enrollment
* >= 1 year (365 days) and =< 21 years at ALL diagnosis
* Ph+ (BCR::ABL1 fusion): newly diagnosed de novo ALL (B-ALL or T-ALL) or mixed phenotypic acute leukemia (MPAL meeting 2016 World Health Organization \[WHO\] definition) with definitive evidence of BCR::ABL1 fusion by karyotype, fluorescence in situ hybridization (FISH) and/or molecular methodologies
* ABL-class fusion: newly diagnosed B-ALL with definitive evidence of ABL-class fusions. ABL-class fusions are defined as those involving the following genes: ABL1, ABL2, CSF1R, PDGFRB, PDGFRA. Methods of detection include fluorescence in-situ hybridization (\[FISH\], e.g. using break-apart or colocalization signals probes), multiplex or singleplex reverse-transcription polymerase chain reaction (RT-PCR), whole transcriptome or panel-based RNA-sequencing (e.g. TruSight RNA Pan-Cancer Panel; Illumina, San Diego, California \[CA\], United States of America \[USA\] or similar)
* Ph+ patients must have previously started Induction therapy, which includes vincristine, a corticosteroid, pegaspargase, with or without anthracycline, and/or other standard cytotoxic chemotherapy
* Ph+ patients have not received more than 14 days of multiagent Induction therapy beginning with the first dose of vinCRIStine
* Ph+ patients may have started imatinib prior to study entry but have not received more than 14 days of imatinib
* ABL-class fusion patients must have previously completed the 4 or 5 weeks of multiagent Induction chemotherapy (Induction IA phase)
* ABL-class fusion patients may have started imatinib during Induction IA, at the same time of or after the first vinCRIStine dose
* Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2
* Direct bilirubin =< 2.0 mg/dL
* Shortening fraction of >= 27% by echocardiogram
* Ejection fraction of >= 50% by radionuclide angiogram or echocardiogram
* Corrected QT interval, QTc < 480 msec

  * Note: Repeat echocardiogram and electrocardiogram are not required if they were performed at or after initial ALL diagnosis, before study enrollment
* Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m\^2 or serum creatinine within normal limits 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)

Exclusion Criteria:

* Known history of chronic myelogenous leukemia (CML)
* ALL developing after a previous cancer treated with cytotoxic chemotherapy
* Active, uncontrolled infection, or active systemic illness that requires ongoing vasopressor support or mechanical ventilation
* Down syndrome
* Pregnancy and breast feeding

  * 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 treatment according to protocol
* Patients with congenital long QT syndrome, history of ventricular arrhythmias or heart block
* Prior treatment with dasatinib, or any TKI other than imatinib

+Locations (226)

FacilityCityCountryStatus
Children's Hospital of AlabamaBirmingham, AlabamaUnited States
USA Health Strada Patient Care CenterMobile, AlabamaUnited States
Providence Alaska Medical CenterAnchorage, AlaskaUnited States
Banner Children's at DesertMesa, ArizonaUnited States
Phoenix Childrens HospitalPhoenix, ArizonaUnited States
Banner University Medical Center - TucsonTucson, ArizonaUnited States
Arkansas Children's HospitalLittle Rock, ArkansasUnited States
Kaiser Permanente Downey Medical CenterDowney, CaliforniaUnited States
City of Hope Comprehensive Cancer CenterDuarte, CaliforniaUnited States
Loma Linda University Medical CenterLoma Linda, CaliforniaUnited States
Miller Children's and Women's Hospital Long BeachLong Beach, CaliforniaUnited States
Children's Hospital Los AngelesLos Angeles, CaliforniaUnited States
Cedars-Sinai Medical CenterLos Angeles, CaliforniaUnited States
Valley Children's HospitalMadera, CaliforniaUnited States
UCSF Benioff Children's Hospital OaklandOakland, CaliforniaUnited States
Kaiser Permanente-OaklandOakland, CaliforniaUnited States
Children's Hospital of Orange CountyOrange, CaliforniaUnited States
Lucile Packard Children's Hospital Stanford UniversityPalo Alto, CaliforniaUnited States
University of California Davis Comprehensive Cancer CenterSacramento, CaliforniaUnited States
Rady Children's Hospital - San DiegoSan Diego, CaliforniaUnited States
UCSF Medical Center-Mission BaySan Francisco, CaliforniaUnited States
Children's Hospital ColoradoAurora, ColoradoUnited States
Rocky Mountain Hospital for Children-Presbyterian Saint Luke's Medical CenterDenver, ColoradoUnited States
Connecticut Children's Medical CenterHartford, ConnecticutUnited States
Yale UniversityNew Haven, ConnecticutUnited States
Alfred I duPont Hospital for ChildrenWilmington, DelawareUnited States
MedStar Georgetown University HospitalWashington D.C., District of ColumbiaUnited States
Children's National Medical CenterWashington D.C., District of ColumbiaUnited States
Broward Health Medical CenterFort Lauderdale, FloridaUnited States
Golisano Children's Hospital of Southwest FloridaFort Myers, FloridaUnited States
UF Health Cancer Institute - GainesvilleGainesville, FloridaUnited States
Memorial Regional Hospital/Joe DiMaggio Children's HospitalHollywood, FloridaUnited States
Nemours Children's Clinic-JacksonvilleJacksonville, FloridaUnited States
Palms West Radiation TherapyLoxahatchee Groves, FloridaUnited States
University of Miami Miller School of Medicine-Sylvester Cancer CenterMiami, FloridaUnited States
Nicklaus Children's HospitalMiami, FloridaUnited States
Miami Cancer InstituteMiami, FloridaUnited States
AdventHealth OrlandoOrlando, FloridaUnited States
Arnold Palmer Hospital for ChildrenOrlando, FloridaUnited States
Nemours Children's HospitalOrlando, FloridaUnited States
Sacred Heart HospitalPensacola, FloridaUnited States
Johns Hopkins All Children's HospitalSt. Petersburg, FloridaUnited States
Tampa General HospitalTampa, FloridaUnited States
Saint Joseph's Hospital/Children's Hospital-TampaTampa, FloridaUnited States
Saint Mary's Medical CenterWest Palm Beach, FloridaUnited States
Children's Healthcare of Atlanta - Arthur M Blank HospitalAtlanta, GeorgiaUnited States
Augusta University Medical CenterAugusta, GeorgiaUnited States
Atrium Health NavicentMacon, GeorgiaUnited States
Memorial Health University Medical CenterSavannah, GeorgiaUnited States
Kapiolani Medical Center for Women and ChildrenHonolulu, HawaiiUnited States
Saint Luke's Cancer Institute - BoiseBoise, IdahoUnited States
Lurie Children's Hospital-ChicagoChicago, IllinoisUnited States
University of IllinoisChicago, IllinoisUnited States
University of Chicago Comprehensive Cancer CenterChicago, IllinoisUnited States
Advocate Children's Hospital-Oak LawnOak Lawn, IllinoisUnited States
Advocate Children's Hospital-Park RidgePark Ridge, IllinoisUnited States
OSF Children's Hospital of IllinoisPeoria, IllinoisUnited States
Southern Illinois University School of MedicineSpringfield, IllinoisUnited States
Riley Hospital for ChildrenIndianapolis, IndianaUnited States
Ascension Saint Vincent Indianapolis HospitalIndianapolis, IndianaUnited States
Blank Children's HospitalDes Moines, IowaUnited States
University of Iowa/Holden Comprehensive Cancer CenterIowa City, IowaUnited States
University of Kentucky/Markey Cancer CenterLexington, KentuckyUnited States
Norton Children's HospitalLouisville, KentuckyUnited States
Ochsner Medical Center JeffersonNew Orleans, LouisianaUnited States
Eastern Maine Medical CenterBangor, MaineUnited States
Maine Children's Cancer ProgramScarborough, MaineUnited States
Sinai Hospital of BaltimoreBaltimore, MarylandUnited States
Johns Hopkins University/Sidney Kimmel Cancer CenterBaltimore, MarylandUnited States
Walter Reed National Military Medical CenterBethesda, MarylandUnited States
Tufts Children's HospitalBoston, MassachusettsUnited States
Massachusetts General Hospital Cancer CenterBoston, MassachusettsUnited States
Dana-Farber Cancer InstituteBoston, MassachusettsUnited States
UMass Memorial Medical Center - University CampusWorcester, MassachusettsUnited States
C S Mott Children's HospitalAnn Arbor, MichiganUnited States
Children's Hospital of MichiganDetroit, MichiganUnited States
Henry Ford Health Saint John HospitalDetroit, MichiganUnited States
Michigan State UniversityEast Lansing, MichiganUnited States
Corewell Health Grand Rapids Hospitals - Helen DeVos Children's HospitalGrand Rapids, MichiganUnited States
Bronson Methodist HospitalKalamazoo, MichiganUnited States
Corewell Health Children'sRoyal Oak, MichiganUnited States
Children's Hospitals and Clinics of Minnesota - MinneapolisMinneapolis, MinnesotaUnited States
University of Minnesota/Masonic Cancer CenterMinneapolis, MinnesotaUnited States
University of Mississippi Medical CenterJackson, MississippiUnited States
University of Missouri Children's HospitalColumbia, MissouriUnited States
Children's Mercy Hospitals and ClinicsKansas City, MissouriUnited States
Washington University School of MedicineSt Louis, MissouriUnited States
Mercy Hospital Saint LouisSt Louis, MissouriUnited States
Children's Hospital and Medical Center of OmahaOmaha, NebraskaUnited States
University of Nebraska Medical CenterOmaha, NebraskaUnited States
University Medical Center of Southern NevadaLas Vegas, NevadaUnited States
Sunrise Hospital and Medical CenterLas Vegas, NevadaUnited States
Alliance for Childhood Diseases/Cure 4 the Kids FoundationLas Vegas, NevadaUnited States
Summerlin Hospital Medical CenterLas Vegas, NevadaUnited States
Renown Regional Medical CenterReno, NevadaUnited States
Dartmouth Hitchcock Medical Center/Dartmouth Cancer CenterLebanon, New HampshireUnited States
Hackensack University Medical CenterHackensack, New JerseyUnited States
Morristown Medical CenterMorristown, New JerseyUnited States
Jersey Shore Medical CenterNeptune City, New JerseyUnited States
Saint Peter's University HospitalNew Brunswick, New JerseyUnited States

126 more sites not listed.

+Investigators

+Funding

NIH grants: U10CA180886, 2017