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Patients receive vincristine sulfate IV on days 1, 29, and 57; dexamethasone PO BID on days 1-5, 29-33, and 57-61; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Patients receive vincristine sulfate IV on days 1, 29, and 57; dexamethasone PO BID on days 1-5, 29-33, and 57-61; higher-dose methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; higher-dose methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Patients receive consolidation, interim maintenance I, delayed intensification, interim maintenance II, and maintenance therapy. See detailed description.

Patients receive consolidation and maintenance therapy. See detailed description.

Doxorubicin Hydrochloride

Laboratory Biomarker Analysis

Leucovorin Calcium

Quality-of-Life Assessment

Questionnaire Administration

Vincristine Sulfate

Anne L Angiolillo

This partially randomized phase III trial studies the side effects of different combinations of risk-adapted chemotherapy regimens and how well they work in treating younger patients with newly diagnosed standard-risk acute lymphoblastic leukemia or B-lineage lymphoblastic lymphoma that is found only in the tissue or organ where it began (localized). Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving more than one drug (combination chemotherapy), giving the drugs in different doses, and giving the drugs in different combinations may kill more cancer cells.

PRIMARY OBJECTIVES:

l. To determine if a maintenance regimen containing weekly oral methotrexate at 40 mg/m\^2/week will result in an improved disease free survival (DFS) compared to that containing weekly oral methotrexate at 20 mg/m\^2/week in the average-risk (AR) subset of patients with standard-risk B-precursor acute lymphoblastic leukemia (ALL). (Complete effective January 13, 2017) II. To determine whether a reduced-pulses maintenance regimen with vincristine (vincristine sulfate)/dexamethasone pulses delivered every 12 weeks can be used without adversely impacting DFS as compared to pulses given every 4 weeks in the AR subset of patients with standard risk B-precursor ALL.

III. To confirm that patients in the low-risk (LR) subset of standard risk B-precursor ALL, based on clinical and cytogenetic features and minimal residual disease (MRD) criteria, can attain a 5 year DFS of at least 95% with either a P9904 based regimen that includes 6 courses of intermediate dose (1 g/m\^2 over 24 hours) methotrexate without alkylating agents or anthracyclines (Arm LR-M), or an outpatient based regimen identical to that of AR patients with reduced vincristine/dexamethasone pulses at 12 week intervals during maintenance (Arm LR-C).

IV. To provide standardized treatment and enhanced supportive care to children with standard-risk (SR) Down syndrome B-ALL in order to improve outcomes and facilitate further study of this biologically and clinically unique patient subgroup.

V. To improve understanding of the biology of localized B-lineage lymphoblastic lymphoma (B-LLy) and Down syndrome (DS) B-LLy by obtaining biologic data, including fluorescence in situ hybridization (FISH) for recurrent cytogenetic lesions on paraffin specimen, and banking tissue for future research.

VI. To describe the 5-year event free survival (EFS) and overall survival (OS) of patients with Murphy stage I and II B-LLy receiving modified AR B-ALL therapy.

SECONDARY OBJECTIVES:

I. To assess the burden of AR B-ALL therapy as measured by surveys of the child's quality of life, missed days of school/daycare/work by children and parents, family functioning, parental perception of the child's health vulnerability, physical functioning, and emotional distress, 1) overall at different time points during and at the end of therapy, and by 2) comparing children randomized to every 4 week vs. every 12 week dexamethasone/vincristine pulses during maintenance. (Closed to accrual as of April 19, 2013) II. To characterize the onset, severity, and natural history of vincristine associated neuropathy by physical therapists (or occupational therapists) in children undergoing therapy for AR B-ALL, 1) overall at different time points during and at the end of therapy, and by 2) comparing children randomized to every 4 week vs. every 12 week dexamethasone/vincristine pulses during maintenance. (Closed to accrual as of March 15, 2013)

TERTIARY OBJECTIVES:

I. To explore the correlation of minimal marrow disease (MMD) at diagnosis and outcome for patients with B-LLy. (Closed effective Amendment #5)

OUTLINE:

All patients receive induction therapy comprising intrathecal (IT) cytarabine on day 1; vincristine sulfate IV on days 1, 8, 15, and 22; dexamethasone orally (PO) or IV twice daily (BID) on days 1-28; pegaspargase IV over 1-2 hours on day 4; and IT methotrexate\* on days 8 and 29. Patients with Philadelphia chromosome-positive disease are eligible to transfer to COG-AALL0622 by day 15 of induction therapy and patients with high-risk (HR) or very high-risk (VHR) disease are eligible to transfer to a COG HR or VHR trial at the end of induction therapy. Patients with standard-risk disease with Down syndrome (DS) who have bone marrow minimal residual disease 0.01% are eligible to transfer to the DS stratum of the HR trial. Patients with induction failure (defined as M3 \[\> 25% lymphoblasts\] on day 29) may be eligible for the COG VHR-acute lymphoblastic leukemia study.

NOTE: \*Patients with DS also receive oral leucovorin calcium every 12 hours on days 10-11 and 31-32.

STANDARD-RISK WITH DOWN SYNDROME:

Consolidation therapy (4 weeks): Patients receive vincristine sulfate IV on day 1; mercaptopurine PO on days 1-28; IT methotrexate on days 1, 8, and 15; and leucovorin calcium PO every 12 hours on days 3-4, 10-11, and 17-18. Interim maintenance I therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41; IT methotrexate on day 31; and leucovorin calcium PO every 12 hours on days 36-34. Delayed-intensification therapy (8 weeks): Patients receive dexamethasone PO or IV BID on days 1-7 and 15-21; vincristine sulfate IV and doxorubicin hydrochloride IV over 1-15 minutes on days 1, 8, and 15; pegaspargase IV over 1-2 hours on day 4; cyclophosphamide IV over 30-60 minutes on day 29; thioguanine PO on days 29-42; cytarabine IV over 1-30 minutes or subcutaneously (SC) on days 29-32 and 33-39; IT methotrexate on days 1 and 29; and leucovorin calcium PO every 12 hours on days 3-4 and 31-32. Interim maintenance II therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41; IT methotrexate on days 1 and 31; and leucovorin calcium PO every 12 hours on days 3-4 and 33-34. Maintenance therapy: Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1. Courses repeat every 12 weeks for 2 years (timed from the start of interim maintenance I therapy).

B-LLy:

Consolidation therapy (4 weeks): Patients receive vincristine sulfate IV on day 1; mercaptopurine PO on days 1-28; IT methotrexate on days 1, 8, and 15; and leucovorin calcium PO every 12 hours on days 3-4, 10-11, and 17-18. Interim maintenance I therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41; IT methotrexate on day 31; and leucovorin calcium PO every 12 hours on days 36-34. Delayed-intensification therapy (8 weeks): Patients receive dexamethasone PO or IV BID on days 1-7 and 15-21; vincristine sulfate IV and doxorubicin hydrochloride IV over 1-15 minutes on days 1, 8, and 15; pegaspargase IV over 1-2 hours on day 4; cyclophosphamide IV over 30-60 minutes on day 29; thioguanine PO on days 29-42; cytarabine IV over 1-30 minutes or subcutaneously (SC) on days 29-32 and 33-39; IT methotrexate on days 1 and 29; and leucovorin calcium PO every 12 hours on days 3-4 and 31-32. Interim maintenance II therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41; IT methotrexate on days 1 and 31; and leucovorin calcium PO every 12 hours on days 3-4 and 33-34. Maintenance therapy: Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1. Courses repeat every 4 weeks for 2 years (timed from the start of interim maintenance I therapy).

AVERAGE-RISK:

Consolidation therapy (4 weeks): Patients receive vincristine sulfate IV on day 1; mercaptopurine PO on days 1-28; and IT methotrexate on days 1, 8, and 15.Interim maintenance I therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41 and IT methotrexate on day 31. Delayed intensification therapy (8 weeks): Patients receive dexamethasone PO or IV BID on days 1-7 and 15-21; vincristine sulfate IV and doxorubicin hydrochloride IV over 1-15 minutes on days 1, 8, and 15; pegaspargase IV over 1-2 hours on day 4; 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; and IT methotrexate on days 1 and 29. Interim maintenance II therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41 and IT methotrexate on days 1 and 31. Maintenance therapy: Patients are randomized to 1 of 4 maintenance therapy treatment arms.

Arm A: Patients receive vincristine sulfate IV on days 1, 29, and 57; dexamethasone PO BID on days 1-5, 29-33, and 57-61; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Arm B: Patients receive vincristine sulfate IV on days 1, 29, and 57; dexamethasone PO BID on days 1-5, 29-33, and 57-61; higher-dose methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Arm C: Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

Arm D: Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; higher-dose methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1.

In all arms, maintenance therapy courses repeat every 12 weeks for 2 years for girls and for 3 years for boys (timed from the start of interim maintenance I therapy).

LOW-RISK: Patients are randomized to 1 of 2 treatment arms.

Arm I (LR-M): Consolidation therapy (19 weeks): Beginning one week after completion of induction therapy, patients receive vincristine sulfate IV on days 15, 22, 78, and 85; methotrexate IV over 24 hours and IT methotrexate on days 8, 29, 50, 71, 92, and 113; leucovorin calcium PO or IV on days 9-10, 30-31, 51-52, 72-73, 93-94, and 114-115; dexamethasone PO BID or IV on days 15-21 and 78-84; and PO mercaptopurine on days 1-133.Maintenance therapy: Patients receive vincristine sulfate IV on days 1 and 8; dexamethasone PO BID on days 1-7; methotrexate\* PO on days 1, 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, 78, 85, 92, 99, and 106; and mercaptopurine PO on days 1-112. Courses repeat every 16 weeks. Patients also receive IT methotrexate on days 1 and 85 (courses 1 and 4), day 57 (courses 2 and 5), or day 29 (courses 3 and 6). Patients then receive course 7 comprising vincristine sulfate IV on days 1 and 8; dexamethasone PO BID on days 1-7; methotrexate PO on days 1, 8, 15, 22, 29, 36, 43, 50, 57, and 64; and mercaptopurine PO on days 1-70. Treatment continues for 2 and Â½ years (timed from the date of diagnosis).NOTE: \*Patients do not receive methotrexate PO on the days that they receive IT methotrexate.

Arm II (LR-C): Consolidation therapy (4 weeks): Patients receive vincristine sulfate IV on day 1; oral mercaptopurine on days 1-28; and IT methotrexate on days 1, 8, and 15. Interim maintenance I therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41 and IT methotrexate on day 31. Delayed-intensification therapy (8 weeks): Patients receive dexamethasone PO or IV BID on days 1-7 and 15-21; vincristine sulfate IV and doxorubicin hydrochloride IV over 1-15 minutes on days 1, 8, and 15; pegaspargase IV over 1-2 hours on day 4; 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; and IT methotrexate on days 1 and 29.Interim maintenance II therapy (8 weeks): Patients receive vincristine sulfate IV and methotrexate IV over 2-15 minutes on days 1, 11, 21, 31, and 41 and IT methotrexate on days 1 and 31. Maintenance therapy: Patients receive vincristine sulfate IV on day 1; dexamethasone PO BID on days 1-5; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; mercaptopurine PO on days 1-84; and IT methotrexate on day 1. Courses repeat every 12 weeks for 2 years for girls and for 3 years for boys (timed from the start of interim maintenance I therapy).

After completion of study treatment, patients are followed up periodically for 10 years from study entry.

Risk-Adapted Chemotherapy in Treating Younger Patients With Newly Diagnosed Standard-Risk Acute Lymphoblastic Leukemia or Localized B-Lineage Lymphoblastic Lymphoma

Treatment of Patients With Newly Diagnosed Standard Risk B-Lymphoblastic Leukemia (B-ALL) or Localized B-Lineage Lymphoblastic Lymphoma (B-LLy)

Select individual patient-level data from this trial can be requested from the NCTN/NCORP Data Archive

DFS is calculated as the time from randomization at the end of interim maintenance II to first event (relapse, second malignancy, remission death) or date of last contact. Five year DFS estimates will be calculated from the point of randomization for both groups. Two-sided 95% confidence intervals will be calculated.

DFS is calculated as the time from randomization at the end of Induction to first event (relapse, second malignancy, remission death) or date of last contact. Five year DFS estimates will be calculated from the point of randomization for both groups. Two-sided 95% confidence intervals will be calculated.

DFS is calculated as the time from end of Induction to first event (relapse, second malignancy, remission death) or date of last contact. The 5-year DFS and 95% confidence interval for these patients will be estimated.

Percent of B-LLy patients who had adequate/usable samples of samples collected will be reported.

EFS is calculated as the Time from study enrollment to first event (induction failure, relapse, second malignancy, remission death) or date of last contact. The 5-year EFS and 95% confidence interval for these patients will be estimated.

OS is calculated as the time from study enrollment to death or date of last contact. The 5-year OS and 95% confidence interval for these patients will be estimated.

Age standardized Quality of life, measured by the emotional subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the emotional subscale of Pediatric Quality of Life Inventory 4.0 Genetic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age and gender standardized Quality of life, measured by the physical subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the physical subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the school subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the social functioning subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the Social functioning subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated with mean and standard deviation reported.

Age standardized Quality of life, measured by the emotional subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with means and standard deviation reported.

Age standardized Quality of life, measured by the emotional subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with mean and standard deviation reported.

Age standardized Quality of life, measured by the physical subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with means and standard deviation reported.

Age standardized Quality of life, measured by the physical subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with mean and standard deviation reported.

Age standardized Quality of life, measured by the school subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with means and standard deviation reported.

Age standardized Quality of life, measured by the school subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with mean and standard deviation reported.

Age standardized Quality of life, measured by the social functioning subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with means and standard deviation reported.

Age standardized Quality of life, measured by the social functioning subscale of Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL), will be calculated for each group with mean and standard deviation reported.

Strength in the right ankle dorsiflexors averaged over two measurements. Age and gender standardized mean and standard deviation for the cohort will be reported.

Strength in the left ankle dorsiflexors averaged over two measurements. Age and gender standardized mean and standard deviation for the cohort will be reported.

Strength in the right ankle dorsiflexors averaged over two measurements. Age and gender standardized mean and standard deviation for each randomization group will be reported.

Strength in the left ankle dorsiflexors averaged over two measurements. Age and gender standardized mean and standard deviation for each randomization group will be reported.

National Cancer Institute (NCI)

Children's Oncology Group

Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution, via expedited reporting (NCI AdEERs / CAeRs). The "AE Other" table reflects all CTCAEs collected excluding those that were reported as SAEs. Ineligible patients are excluded from reporting of adverse events. All-Cause Mortality includes all deaths collected on the study.

All patients receive induction therapy comprising intrathecal (IT) cytarabine on day 1; vincristine sulfate IV on days 1, 8, 15, and 22; dexamethasone orally (PO) or IV twice daily (BID) on days 1-28; pegaspargase IV over 1-2 hours on day 4; and IT methotrexate on days 8 and 29. Patients with DS also receive leucovorin calcium every 12 hours on days 10-11 and 21-32. Patients with Philadelphia chromosome-positive disease are eligible to transfer to COG-AALL0622 by day 15 of induction therapy and patients with high-risk (HR) or very high-risk (VHR) disease are eligible to transfer to a COG HR or VHR trial at the end of induction therapy. Patients with standard-risk disease with Down syndrome (DS) who have bone marrow minimal residual disease 0.01% are eligible to transfer to the DS stratum of the HR trial. Patients with induction failure (defined as M3 \[\> 25% lymphoblasts\] on day 29) may be eligible for the COG VHR-acute lymphoblastic leukemia study.

B-ALL

Induction: same trt as B-ALL; Consolidation (4 wks): vincristine sulfate day 1; mercaptopurine days 1-28; IT methotrexate (MTX) days 1/8/15; leucovorin calcium days 3-4,10-11,17-18 Interim maintenance I (8 wks): vincristine sulfate and MTX 2-15 min days 1/11/21/31/41; IT MTX day 31; leucovorin calcium days 33-34 Delayed-intensification (8 wks): dexamethasone days 1-7 and 15-21; vincristine sulfate and doxorubicin hydrochloride on days 1/8/15; pegaspargase 1-2 hrs day 4; cyclophosphamide day 29; thioguanine days 29-42; cytarabine 29-32, 33-39; IT MTX days 1/29; and leucovorin calcium days 3-4, 31-32 Interim maintenance II (8 wks): vincristine sulfate and MTX days 1/11/21/31/41; IT MTX days 1/31; and leucovorin calcium days 3-4, 33/34 Maintenance: vincristine sulfate day 1; dexamethasone days 1-5; MTX weekly days 8-78; mercaptopurine days 1-84; and IT MTX day 1. Courses repeat every 4 wks for 2 yrs (from the start of IMI therapy).

B-LLy

Consolidation (4 wks): vincristine (VIN) day (d) 1; mercaptopurine (MP) d 1-28; IT MTX d 1/8/15; leucovorin (LV) d 3-4/10-11/17-18 Int. maint. I (8 wks): VIN and MTX d 1/11/21/31/41; IT MTX d 31; LV d 33-34 Delayed-intensification (8 wks): dexamethasone (DEX) d 1-7/15-21; VIN and doxorubicin d 1/8/15; pegaspargase d 4; cyclophosphamide d 29; thioguanine d 29-42; cytarabine d 29-32/33-39; IT MTX d 1/29; LV d 3-4/31-32 Int. maint. II (8 wks): VIN and MTX d 1/11/21/31/41; IT MTX d 1/31; LV d 3-4/33-34

B-ALL Average Risk

Consolidation (4 w): vincristine (VIN) d1; MP d1-28; IT methotrexate (MTX) d1/8/15; leucovorin (LV) d3-4/10-11/17-18 Interim maintenance I (8 wks): VIN \& IV MTX d1/11/21/31/41; IT MTX d31; LV d36-34 Delayed-intensification (8 wks): Patients receive dexamethasone (DEX) d1-7/15-21; VIN \& doxorubicin d1/8/15; pegaspargase d4; cyclophosphamide d29; thioguanine d 29-42; cytarabine d29-32/33-39; IT MTX d1/29; and LV d3-4/31-32 Interim maintenance II (8 wks): VIN \& IV MTX d1/11/21/31/41; IT MTX d1/31; and LV d3-4/33-34 Maintenance: VIN d1; DEX d1-5; PO MTX wkly d8-78; MP d1-84; and IT MTX d1. Courses repeat every 12 wks for 2 years (timed from the start of interim maintenance I therapy).

Standard Risk With Down Syndrome

Consolidation (19 w): vincristine (VIN) day(d) 15/22/78/85; IV/IT methotrexate (MTX) d8/29/50/71/92/113; leucovorin (LV) d9-10/30-31/51-52/72-73/93-94/114-115; dexamethasone (DEX) d15-21/78-84; mercaptopurine (MP) d 1-133. Maint.: VIN d1/8; DEX d1-7; MTX\* PO wkly d1-106; MP d 1-112. Repeat every 16 w until 2.5 yrs from dx. IT MTX d1/85 (course 1\&4), d 57 (course 2\&5), d29 (course 3\&6). Course 7: VIN d1/8; DEX d 1-7; MTX PO wkly d8-64; and MP d1-70. \*Patients do not receive MTX PO on d w/ IT MTX.

B-ALL Low Risk Arm I (LR-M)

Consolidation (4 w): VIN d1; MP d1-28; IT MTX d1/8/15 Interim Maint. I (8 w): VIN \& IV MTX d1/11/21/31/41; IT MTX d31 Delayed-intensification (8 w): DEX d1-7/15-21; VIN \& doxorubicin d1/8/15; pegaspargase d4; cyclophosphamide d29; thioguanine d 29-42; cytarabine d29-32/36-39; IT MTX d1/29 Interim Maint. II (8 w): VIN \& IV MTX d1/11/21/31/41; IT MTX d1/31 Maint.: VIN d1; DEX d1-5; MTX PO wkly d22-78; MP d 1-84; IT MTX d1. Rpt every 12 w for 2 yrs:girls, 3 yrs:boys from start IM1

B-ALL Low Risk Arm II (LR-C)

Maintenance: repeat every 12 wks for 2 yrs (girls), 3 yrs (boys) from start IM1: VIN d 1/29/57; DEX d 1-5/29-33/57-61; MTX weekly d 8-78; MP d 1+P8:W8-84; and IT MTX d 1

B-ALL Average Risk-Arm A

Maintenance: repeat every 12 wks for 2 yrs (girls), 3 yrs (boys) from start IM1: VIN d 1/29/57; DEX d 1-5/29-33/57-61; high-dose (HD) MTX weekly d 8-78; MP d 1-84; and IT MTX d 1

B-ALL Average Risk-Arm B

Maintenance: repeat every 12 wks for 2 yrs (girls), 3 yrs (boys) from start IM1: VIN d 1; DEX d 1-5; MTX weekly d 8-78; MP d 1-84; IT MTX d 1

B-ALL Average Risk-Arm C

Maintenance: repeat every 12 wks for 2 yrs (girls), 3 yrs (boys) from start IM1: VIN d 1; DEX d 1-5; HD MTX weekly d 8-78; MP d 1-84; IT MTX d 1

B-ALL Average Risk-Arm D

Total

Age, Categorical

Age, Continuous

Sex: Female, Male

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Baseline data were collected according to the Arms from the Induction period (1. B-ALL; 2. B-LLy)

Results Reporting Coordinator

Cons. (4 wks): vincristine (VIN) day (d) 1; mercaptopurine (MP) d 1-28; IT MTX d 1/8/15; leucovorin (LV) d 3-4/10-11/17-18 Int. maint. I (8 wks): VIN and MTX d 1/11/21/31/41; IT MTX d 31; LV d 33-34 Delayed-intensification (8 wks): dexamethasone (DEX) d 1-7/15-21; VIN and doxorubicin d 1/8/15; pegaspargase d 4; cyclophosphamide d 29; thioguanine d 29-42; cytarabine d 29-32/33-39; IT MTX d 1/29; LV d 3-4/31-32 Int. maint. II (8 wks): VIN and MTX d 1/11/21/31/41; IT MTX d 1/31; LV d 3-4/33-34 Maintenance: repeat every 12 wks for 2 yrs (girls), 3 yrs (boys) from start IM1 Arm A: VIN d 1/29/57; DEX d 1-5/29-33/57-61; MTX weekly d 8-78; MP d 1-84; and IT MTX d 1 Arm B: VIN d 1/29/57; DEX d 1-5/29-33/57-61; high-dose (HD) MTX weekly d 8-78; MP d 1-84; and IT MTX d 1 Arm C: VIN d 1; DEX d 1-5; MTX weekly d 8-78; MP d 1-84; IT MTX d 1 Arm D: VIN d 1; DEX d 1-5; HD MTX weekly d 8-78; MP d 1-84; IT MTX d 1

B-ALL Average Risk: MTX 20 mg/m^2/Week Starting Dose

B-ALL Average Risk: MTX 40 mg/m^2/Week Starting Dose

Average Risk (AR) B-ALL patients who were randomized and started maintenance

Disease Free Survival (DFS) in Average Risk (AR) Patients Based on the Methotrexate Dose Randomization

B-ALL Average Risk: VCR/DEX Pulse Every 4 Weeks

B-ALL Average Risk: VCR/DEX Pulse Every 12 Weeks

DFS in Average Risk (AR) Patients Based on the Pulse Frequency Randomization

DFS in Low Risk (LR) Patients Based on Randomization to 1 of 2 Low-intensity Regimens

DFS for SR Down Syndrome Patients With Standardized Treatment and Enhanced Supportive Care

patients who had samples collected near diagnosis

Sample Collection of Central Path Review Slides in B-LLy Patients

Event Free Survival (EFS) for B-LLy Patients

Induction: same trt as B-ALL Consolidation (4 wks): vincristine sulfate day 1; mercaptopurine days 1-28; IT methotrexate (MTX) days 1/8/15; leucovorin calcium days 3-4,10-11,17-18 Interim maintenance I (8 wks): vincristine sulfate and MTX 2-15 min days 1/11/21/31/41; IT MTX day 31; leucovorin calcium days 33-34 Delayed-intensification (8 wks): dexamethasone days 1-7 and 15-21; vincristine sulfate and doxorubicin hydrochloride on days 1/8/15; pegaspargase 1-2 hrs day 4; cyclophosphamide day 29; thioguanine days 29-42; cytarabine 29-32, 33-39; IT MTX days 1/29; and leucovorin calcium days 3-4, 31-32 Interim maintenance II (8 wks): vincristine sulfate and MTX days 1/11/21/31/41; IT MTX days 1/31; and leucovorin calcium days 3-4, 33/34 Maintenance: vincristine sulfate day 1; dexamethasone days 1-5; MTX weekly days 8-78; mercaptopurine days 1-84; and IT MTX day 1. Courses repeat every 4 wks for 2 yrs (from the start of IMI therapy).

Spots Global Cancer Trial Database for hypodiploid b acute lymphoblastic leukemia