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

Acute Lymphoblastic Leukemia Clinical Trial

Official title:

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

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03007147
• Other study ID #: AALL1631
• Secondary ID: NCI-2016-01588AA
• Status: Recruiting
• Phase: Phase 3
• Start date: August 8, 2017
• Est. completion date: September 30, 2027

Study information

• Verified date: April 2024
• Source: Children's Oncology Group
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

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 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 event free survival (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 prognostic significance of IKZF1 gene aberrations and deletions in Ph+ ALL. V. To determine frequency and prognostic significance of p190 and p210 BCR-ABL1 fusion variants in pediatric Ph+ 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. 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: 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 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 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 PO or IV on days 3 and 4, dexrazoxane hydrochloride IV over 5-15 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 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 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 5-15 minutes, and doxorubicin IV over 1-15 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 5-15 minutes, and doxorubicin IV over 1-15 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: 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 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 5-15 minutes, and doxorubicin IV over 1-15 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 22 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: CONSOLIDATION BLOCK 1: Patients receive imatinib mesylate, methotrexate, cytarabine, therapeutic hydrocortisone, high dose methotrexate, vincristine sulfate, dexamethasone, leucovorin calcium, high dose cytarabine, and pegaspargase or calaspargase pegol as in Arm A Consolidation Block 1, and filgrastim SC 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, 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.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 475
• Est. completion date: September 30, 2027
• Est. primary completion date: September 30, 2027
• Accepts healthy volunteers: No
• Gender: All
• Age group: 1 Year to 21 Years

Eligibility

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 ribonucleic acid (RNA)-sequencing (e.g. TruSight RNA Pan-Cancer Panel; Illumina, San Diego, CA, 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

Related Conditions & MeSH terms

• Acute Lymphoblastic Leukemia
• B Acute Lymphoblastic Leukemia
• Leukemia
• Leukemia, Lymphoid
• Mixed Phenotype Acute Leukemia
• Philadelphia Chromosome
• Precursor Cell Lymphoblastic Leukemia-Lymphoma
• Precursor T-Cell Lymphoblastic Leukemia-Lymphoma
• T Acute Lymphoblastic Leukemia

Intervention

Procedure:
• Allogeneic Hematopoietic Stem Cell Transplantation
Undergo HSCT

Drug:
• Calaspargase Pegol
Given IV
• Cyclophosphamide
Given IV
• Cytarabine
Given IV, SC, or IT
• Daunorubicin Hydrochloride
Given IV
• Dexamethasone
Given PO or IV
• Dexrazoxane Hydrochloride
Given IV
• Doxorubicin
Given IV
• Etoposide
Given IV

Biological:
• Filgrastim
Given IV

Drug:
• Ifosfamide
Given IV
• Imatinib Mesylate
Given PO

Other:
• Laboratory Biomarker Analysis
Correlative studies

Drug:
• Leucovorin Calcium
Given PO or IV
• Mercaptopurine
Given PO
• Mercaptopurine
Given PO
• Methotrexate
Given IT
• Methylprednisolone
Given IV
• Pegaspargase
Given IV
• Prednisolone
Given PO

Other:
• Questionnaire Administration
Ancillary studies

Drug:
• Therapeutic Hydrocortisone
Given IT
• Thioguanine
Given PO
• Vincristine Sulfate
Given IV

Locations

Country	Name	City	State
Australia	John Hunter Children's Hospital	Hunter Regional Mail Centre	New South Wales
Australia	Perth Children's Hospital	Perth	Western Australia
Australia	Princess Margaret Hospital for Children	Perth	Western Australia
Australia	Sydney Children's Hospital	Randwick	New South Wales
Australia	Queensland Children's Hospital	South Brisbane	Queensland
Australia	The Children's Hospital at Westmead	Westmead	New South Wales
Austria	St. Anna Children's Hospital	Vienna
Belgium	Hospitals Leuven	Leuven	Flemish Brabant
Canada	Alberta Children's Hospital	Calgary	Alberta
Canada	University of Alberta Hospital	Edmonton	Alberta
Canada	IWK Health Centre	Halifax	Nova Scotia
Canada	McMaster Children's Hospital at Hamilton Health Sciences	Hamilton	Ontario
Canada	Kingston Health Sciences Centre	Kingston	Ontario
Canada	Children's Hospital	London	Ontario
Canada	Centre Hospitalier Universitaire Sainte-Justine	Montreal	Quebec
Canada	The Montreal Children's Hospital of the MUHC	Montreal	Quebec
Canada	Children's Hospital of Eastern Ontario	Ottawa	Ontario
Canada	CHU de Quebec-Centre Hospitalier de l'Universite Laval (CHUL)	Quebec
Canada	Jim Pattison Children's Hospital	Saskatoon	Saskatchewan
Canada	Saskatoon Cancer Centre	Saskatoon	Saskatchewan
Canada	Centre Hospitalier Universitaire de Sherbrooke-Fleurimont	Sherbrooke	Quebec
Canada	Hospital for Sick Children	Toronto	Ontario
Canada	British Columbia Children's Hospital	Vancouver	British Columbia
Canada	CancerCare Manitoba	Winnipeg	Manitoba
Chile	Hospital Roberto del Rio-Universidad de Chile	Santiago
Czechia	University Hospital Motol	Praha
Finland	Tampere University Hospital	Tampere
France	CHU Hopital Sud	Rennes
Germany	Universitätsklinik Eppendorf	Hamburg
Germany	University Medical Center chleswig- Campus Kiel	Kiel	Schleswig-Holstein
Hong Kong	Hong Kong Children's Hospital	Kowloon Bay	Kowloon
Israel	Schneider Children's Medical Center of Israe	Petah-Tikva	Central District
Italy	Clinica Pediatrica Università Milano-Bicocca Ospedale S. Gerardo/Fondazione MBBM	Monza
Netherlands	Princess Máxima Center for Pediatric Oncology	Utrecht
New Zealand	Christchurch Hospital	Christchurch
New Zealand	Starship Children's Hospital	Grafton	Auckland
Puerto Rico	HIMA San Pablo Oncologic Hospital	Caguas
Puerto Rico	San Jorge Children's Hospital	San Juan
Puerto Rico	University Pediatric Hospital	San Juan
Saudi Arabia	King Faisal Specialist Hospital and Research Centre	Riyadh
Sweden	Skane University Hospital	Lund	Scania
Switzerland	University Children's Hospital	Zurich
United States	Children's Hospital Medical Center of Akron	Akron	Ohio
United States	Albany Medical Center	Albany	New York
United States	Presbyterian Hospital	Albuquerque	New Mexico
United States	University of New Mexico Cancer Center	Albuquerque	New Mexico
United States	Lehigh Valley Hospital-Cedar Crest	Allentown	Pennsylvania
United States	Texas Tech University Health Sciences Center-Amarillo	Amarillo	Texas
United States	Providence Alaska Medical Center	Anchorage	Alaska
United States	C S Mott Children's Hospital	Ann Arbor	Michigan
United States	Mission Hospital	Asheville	North Carolina
United States	Children's Healthcare of Atlanta - Egleston	Atlanta	Georgia
United States	Augusta University Medical Center	Augusta	Georgia
United States	Children's Hospital Colorado	Aurora	Colorado
United States	Dell Children's Medical Center of Central Texas	Austin	Texas
United States	Johns Hopkins University/Sidney Kimmel Cancer Center	Baltimore	Maryland
United States	Sinai Hospital of Baltimore	Baltimore	Maryland
United States	Eastern Maine Medical Center	Bangor	Maine
United States	Walter Reed National Military Medical Center	Bethesda	Maryland
United States	Children's Hospital of Alabama	Birmingham	Alabama
United States	Saint Luke's Cancer Institute - Boise	Boise	Idaho
United States	Dana-Farber Cancer Institute	Boston	Massachusetts
United States	Massachusetts General Hospital Cancer Center	Boston	Massachusetts
United States	Tufts Children's Hospital	Boston	Massachusetts
United States	Montefiore Medical Center - Moses Campus	Bronx	New York
United States	Maimonides Medical Center	Brooklyn	New York
United States	Roswell Park Cancer Institute	Buffalo	New York
United States	University of Vermont and State Agricultural College	Burlington	Vermont
United States	UNC Lineberger Comprehensive Cancer Center	Chapel Hill	North Carolina
United States	Medical University of South Carolina	Charleston	South Carolina
United States	Carolinas Medical Center/Levine Cancer Institute	Charlotte	North Carolina
United States	Novant Health Presbyterian Medical Center	Charlotte	North Carolina
United States	University of Virginia Cancer Center	Charlottesville	Virginia
United States	T C Thompson Children's Hospital	Chattanooga	Tennessee
United States	Lurie Children's Hospital-Chicago	Chicago	Illinois
United States	University of Chicago Comprehensive Cancer Center	Chicago	Illinois
United States	University of Illinois	Chicago	Illinois
United States	Cincinnati Children's Hospital Medical Center	Cincinnati	Ohio
United States	Cleveland Clinic Foundation	Cleveland	Ohio
United States	Rainbow Babies and Childrens Hospital	Cleveland	Ohio
United States	Columbia Regional	Columbia	Missouri
United States	Prisma Health Richland Hospital	Columbia	South Carolina
United States	Nationwide Children's Hospital	Columbus	Ohio
United States	Driscoll Children's Hospital	Corpus Christi	Texas
United States	Medical City Dallas Hospital	Dallas	Texas
United States	UT Southwestern/Simmons Cancer Center-Dallas	Dallas	Texas
United States	Geisinger Medical Center	Danville	Pennsylvania
United States	Dayton Children's Hospital	Dayton	Ohio
United States	Rocky Mountain Hospital for Children-Presbyterian Saint Luke's Medical Center	Denver	Colorado
United States	Blank Children's Hospital	Des Moines	Iowa
United States	Ascension Saint John Hospital	Detroit	Michigan
United States	Children's Hospital of Michigan	Detroit	Michigan
United States	Kaiser Permanente Downey Medical Center	Downey	California
United States	City of Hope Comprehensive Cancer Center	Duarte	California
United States	Duke University Medical Center	Durham	North Carolina
United States	Michigan State University Clinical Center	East Lansing	Michigan
United States	El Paso Children's Hospital	El Paso	Texas
United States	Inova Fairfax Hospital	Falls Church	Virginia
United States	Sanford Broadway Medical Center	Fargo	North Dakota
United States	Broward Health Medical Center	Fort Lauderdale	Florida
United States	Golisano Children's Hospital of Southwest Florida	Fort Myers	Florida
United States	Cook Children's Medical Center	Fort Worth	Texas
United States	University of Florida Health Science Center - Gainesville	Gainesville	Florida
United States	Helen DeVos Children's Hospital at Spectrum Health	Grand Rapids	Michigan
United States	Saint Vincent Hospital Cancer Center Green Bay	Green Bay	Wisconsin
United States	BI-LO Charities Children's Cancer Center	Greenville	South Carolina
United States	East Carolina University	Greenville	North Carolina
United States	Hackensack University Medical Center	Hackensack	New Jersey
United States	Connecticut Children's Medical Center	Hartford	Connecticut
United States	Penn State Children's Hospital	Hershey	Pennsylvania
United States	Memorial Regional Hospital/Joe DiMaggio Children's Hospital	Hollywood	Florida
United States	Kapiolani Medical Center for Women and Children	Honolulu	Hawaii
United States	Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center	Houston	Texas
United States	M D Anderson Cancer Center	Houston	Texas
United States	Edwards Comprehensive Cancer Center	Huntington	West Virginia
United States	Ascension Saint Vincent Indianapolis Hospital	Indianapolis	Indiana
United States	Riley Hospital for Children	Indianapolis	Indiana
United States	University of Iowa/Holden Comprehensive Cancer Center	Iowa City	Iowa
United States	University of Mississippi Medical Center	Jackson	Mississippi
United States	Nemours Children's Clinic-Jacksonville	Jacksonville	Florida
United States	Bronson Methodist Hospital	Kalamazoo	Michigan
United States	Children's Mercy Hospitals and Clinics	Kansas City	Missouri
United States	East Tennessee Childrens Hospital	Knoxville	Tennessee
United States	Alliance for Childhood Diseases/Cure 4 the Kids Foundation	Las Vegas	Nevada
United States	Summerlin Hospital Medical Center	Las Vegas	Nevada
United States	Sunrise Hospital and Medical Center	Las Vegas	Nevada
United States	University Medical Center of Southern Nevada	Las Vegas	Nevada
United States	Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center	Lebanon	New Hampshire
United States	University of Kentucky/Markey Cancer Center	Lexington	Kentucky
United States	Arkansas Children's Hospital	Little Rock	Arkansas
United States	Loma Linda University Medical Center	Loma Linda	California
United States	Miller Children's and Women's Hospital Long Beach	Long Beach	California
United States	Cedars Sinai Medical Center	Los Angeles	California
United States	Children's Hospital Los Angeles	Los Angeles	California
United States	Norton Children's Hospital	Louisville	Kentucky
United States	Palms West Radiation Therapy	Loxahatchee Groves	Florida
United States	Covenant Children's Hospital	Lubbock	Texas
United States	UMC Cancer Center / UMC Health System	Lubbock	Texas
United States	Medical Center of Central Georgia	Macon	Georgia
United States	Valley Children's Hospital	Madera	California
United States	University of Wisconsin Carbone Cancer Center	Madison	Wisconsin
United States	Marshfield Medical Center-Marshfield	Marshfield	Wisconsin
United States	Banner Children's at Desert	Mesa	Arizona
United States	Miami Cancer Institute	Miami	Florida
United States	Nicklaus Children's Hospital	Miami	Florida
United States	University of Miami Miller School of Medicine-Sylvester Cancer Center	Miami	Florida
United States	Children's Hospital of Wisconsin	Milwaukee	Wisconsin
United States	NYU Winthrop Hospital	Mineola	New York
United States	Children's Hospitals and Clinics of Minnesota - Minneapolis	Minneapolis	Minnesota
United States	University of Minnesota/Masonic Cancer Center	Minneapolis	Minnesota
United States	USA Health Strada Patient Care Center	Mobile	Alabama
United States	West Virginia University Healthcare	Morgantown	West Virginia
United States	Morristown Medical Center	Morristown	New Jersey
United States	The Children's Hospital at TriStar Centennial	Nashville	Tennessee
United States	Vanderbilt University/Ingram Cancer Center	Nashville	Tennessee
United States	Rutgers Cancer Institute of New Jersey-Robert Wood Johnson University Hospital	New Brunswick	New Jersey
United States	Saint Peter's University Hospital	New Brunswick	New Jersey
United States	Yale University	New Haven	Connecticut
United States	The Steven and Alexandra Cohen Children's Medical Center of New York	New Hyde Park	New York
United States	Ochsner Medical Center Jefferson	New Orleans	Louisiana
United States	Laura and Isaac Perlmutter Cancer Center at NYU Langone	New York	New York
United States	Memorial Sloan Kettering Cancer Center	New York	New York
United States	Mount Sinai Hospital	New York	New York
United States	NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center	New York	New York
United States	Newark Beth Israel Medical Center	Newark	New Jersey
United States	Children's Hospital of The King's Daughters	Norfolk	Virginia
United States	Advocate Children's Hospital-Oak Lawn	Oak Lawn	Illinois
United States	Kaiser Permanente-Oakland	Oakland	California
United States	UCSF Benioff Children's Hospital Oakland	Oakland	California
United States	University of Oklahoma Health Sciences Center	Oklahoma City	Oklahoma
United States	Children's Hospital and Medical Center of Omaha	Omaha	Nebraska
United States	University of Nebraska Medical Center	Omaha	Nebraska
United States	Children's Hospital of Orange County	Orange	California
United States	AdventHealth Orlando	Orlando	Florida
United States	Arnold Palmer Hospital for Children	Orlando	Florida
United States	Nemours Children's Hospital	Orlando	Florida
United States	Lucile Packard Children's Hospital Stanford University	Palo Alto	California
United States	Advocate Children's Hospital-Park Ridge	Park Ridge	Illinois
United States	Saint Joseph's Regional Medical Center	Paterson	New Jersey
United States	Sacred Heart Hospital	Pensacola	Florida
United States	Saint Jude Midwest Affiliate	Peoria	Illinois
United States	Children's Hospital of Philadelphia	Philadelphia	Pennsylvania
United States	Saint Christopher's Hospital for Children	Philadelphia	Pennsylvania
United States	Phoenix Childrens Hospital	Phoenix	Arizona
United States	Children's Hospital of Pittsburgh of UPMC	Pittsburgh	Pennsylvania
United States	Legacy Emanuel Children's Hospital	Portland	Oregon
United States	Oregon Health and Science University	Portland	Oregon
United States	Naval Medical Center - Portsmouth	Portsmouth	Virginia
United States	Rhode Island Hospital	Providence	Rhode Island
United States	Renown Regional Medical Center	Reno	Nevada
United States	Virginia Commonwealth University/Massey Cancer Center	Richmond	Virginia
United States	Carilion Children's	Roanoke	Virginia
United States	Mayo Clinic in Rochester	Rochester	Minnesota
United States	University of Rochester	Rochester	New York
United States	Beaumont Children's Hospital-Royal Oak	Royal Oak	Michigan
United States	University of California Davis Comprehensive Cancer Center	Sacramento	California
United States	Mercy Hospital Saint Louis	Saint Louis	Missouri
United States	Washington University School of Medicine	Saint Louis	Missouri
United States	Johns Hopkins All Children's Hospital	Saint Petersburg	Florida
United States	Primary Children's Hospital	Salt Lake City	Utah
United States	Children's Hospital of San Antonio	San Antonio	Texas
United States	Methodist Children's Hospital of South Texas	San Antonio	Texas
United States	University of Texas Health Science Center at San Antonio	San Antonio	Texas
United States	Rady Children's Hospital - San Diego	San Diego	California
United States	UCSF Medical Center-Mission Bay	San Francisco	California
United States	Memorial Health University Medical Center	Savannah	Georgia
United States	Maine Children's Cancer Program	Scarborough	Maine
United States	Seattle Children's Hospital	Seattle	Washington
United States	Sanford USD Medical Center - Sioux Falls	Sioux Falls	South Dakota
United States	Providence Sacred Heart Medical Center and Children's Hospital	Spokane	Washington
United States	Southern Illinois University School of Medicine	Springfield	Illinois
United States	Stony Brook University Medical Center	Stony Brook	New York
United States	State University of New York Upstate Medical University	Syracuse	New York
United States	Madigan Army Medical Center	Tacoma	Washington
United States	Mary Bridge Children's Hospital and Health Center	Tacoma	Washington
United States	Saint Joseph's Hospital/Children's Hospital-Tampa	Tampa	Florida
United States	Tampa General Hospital	Tampa	Florida
United States	Scott and White Memorial Hospital	Temple	Texas
United States	ProMedica Toledo Hospital/Russell J Ebeid Children's Hospital	Toledo	Ohio
United States	Banner University Medical Center - Tucson	Tucson	Arizona
United States	New York Medical College	Valhalla	New York
United States	Children's National Medical Center	Washington	District of Columbia
United States	MedStar Georgetown University Hospital	Washington	District of Columbia
United States	Saint Mary's Hospital	West Palm Beach	Florida
United States	Alfred I duPont Hospital for Children	Wilmington	Delaware
United States	Wake Forest University Health Sciences	Winston-Salem	North Carolina
United States	UMass Memorial Medical Center - University Campus	Worcester	Massachusetts

Sponsors (3)

Lead Sponsor	Collaborator
Children's Oncology Group	EsPhALL Network/ BFM Study Group, National Cancer Institute (NCI)

Countries where clinical trial is conducted

United States,  Australia,  Austria,  Belgium,  Canada,  Chile,  Czechia,  Finland,  France,  Germany,  Hong Kong,  Israel,  Italy,  Netherlands,  New Zealand,  Puerto Rico,  Saudi Arabia,  Sweden,  Switzerland, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Incidence of toxicities associated with post-HSCT administration of imatinib mesylate	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.	Up to 2 years
Other	Incidence of long-term toxicities in patients treated with chemotherapy plus imatinib mesylate (no transplant) in both arms	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.	Up to 3 years
Other	MRD measured by IGH-T cell receptor (TCR) polymerase chain reaction (PCR) and next generation sequencing (NGS) assay	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.	Up to 6 months
Other	MRD in high risk Ph+ patients measured by IGH-TCR PCR and NGS assay	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.	Up to 3 years
Other	MRD assessments made by IGH-TCR PCR assay and NGS assay	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.	Up to 3 years
Other	IKZF1 gene aberrations and deletions	For both standard risk and high risk groups, frequencies and prognostic significance (OS, DFS) will be explored for IKZF1 gene aberrations and deletions.	Up to 3 years
Other	Frequency of p190 and p210 BCR-ABL1 fusion variants	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.	Up to 3 years
Other	Adherence to oral chemotherapeutic agents in standard risk Ph+ ALL patients	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.	Up to 2 years
Other	Adherence to imatinib mesylate after allogeneic HSCT in high risk Ph+ ALL patients	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.	Up to 2 years
Primary	Disease free survival (DFS) of Randomized Arms (standard risk [SR] Philadelphia chromosome [Ph+] acute lymphoblastic leukemia [ALL] patients)	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.	Up to 3 years
Secondary	DFS on Randomized Arms (SR Ph+ ALL and ABL-class fusion positive patients)	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.	Up to 3 years
Secondary	Feasibility of post hematopoietic stem cell transplantation (HSCT) imatinib mesylate administration after allogenic HSCT in high risk Ph+ ALL patients	The proportion of patients who receive at least 75% of intended doses.	Up to 2 years
Secondary	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	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.	Up to 3 years
Secondary	Incidence of grade 3 or higher infections in standard risk Ph+ ALL patients in the two randomized arms	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.	Up to 3 years
Secondary	EFS of all Ph+ patients	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.	Up to 3 years
Secondary	Overall survival (OS) of all Ph+ patients	Three-year OS and 95% CI for Ph+ ALL patients. OS is defined as the time from study enrollment to death from any cause.	Up to 3 years
Secondary	OS of SR Ph+ patients	Three-year OS (time from randomization to death from any cause) and 95% CI of SR pediatric Ph+ patients	Up to 3 years
Secondary	OS of SR Ph+ patients by randomization group	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.	Up to 3 years
Secondary	OS of high risk Ph+ patients	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.	Up to 3 years
Secondary	EFS of all eligibility ABL-class fusion positive ALL patients	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.	Up to 3 years
Secondary	OS of all eligibility ABL-class fusion positive ALL patients	Three-year OS (the time from study enrollment to death from any cause) and 95% CI of ABL-class fusion positive patients.	Up to 3 years