Find-A-Study

Combination Chemotherapy in Treating Young Patients With Newly Diagnosed T-Cell Acute Lymphoblastic Leukemia or T-cell Lymphoblastic Lymphoma

Purpose

This randomized phase III trial is studying different combination chemotherapy regimens and their side effects and comparing how well they work in treating young patients with newly diagnosed T-cell acute lymphoblastic leukemia or T-cell lymphoblastic lymphoma. Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells. It is not yet known which combination chemotherapy regimen is more effective in treating T-cell acute lymphoblastic leukemia or T-cell lymphoblastic lymphoma. After a common induction therapy, patients were risk assigned and eligible for one or both post-induction randomizations: Escalating dose Methotrexate versus High Dose Methotrexate in Interim Maintenance therapy, No Nelarabine versus Nelarabine in Consolidation therapy. T-ALL patients are risk assigned as Low Risk, Intermediate Risk or High Risk. Low Risk patients are not eligible for the Nelarabine randomization, Patients with CNS disease at diagnosis were assgined to receive High Dose Methotrexate, patients who failed induction therapy were assigned to receive Nelarabine and High Dose Methotrexate. T-LLy patients were all assigned to escalating dose Methotrexate and were risk assigned as Standard Risk, High Risk and induction failures. Standard risk patients did not receive nelarabine, High risk T-LLy patients were randomized to No Nelarabine versus Nelarabine, and Induction failures were assigned to receive Nelarabine.

Study Contact

Principal Investigator
Anne-Marie Langevin

Robin Tragus
(210) 567-5262
tragus@uthscsa.edu

Eligibility

Eligible Ages: Between 1 Year and 30 Years
Eligible Genders: All
Accepts Healthy Volunteers: No

Inclusion Criteria

Exclusion Criteria

Study Design

Phase: Phase 3
Study Type: Interventional
Allocation: Randomized
Intervention Model: Parallel Assignment
Primary Purpose: Treatment
Masking: None (Open Label)
Condition: T Acute Lymphoblastic Leukemia
T Lymphoblastic Lymphoma

Arm Groups

Arm	Description	Intervention
Active Comparator Group I Arm III (Maintenance chemotherapy)	Patients receive vincristine sulfate IV on days 1, 29, and 57; prednisone PO BID on days 1-5, 29-33, and 57-61; mercaptopurine PO QD on days 1-84; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; and methotrexate IT on day 1. Treatment repeats every 84 days until the total duration of study treatment is 2 years from the start of interim maintenance therapy (approximately week 119) (for girls with T-ALL) and all patients with T-LLy, and 3 years from the start of interim maintenance therapy (approximately week 171) (for boys with T-ALL).	Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Prednisone Given IV or PO Other names: .delta.1-Cortisone 1, 2-Dehydrocortisone Adasone Cortancyl Dacortin DeCortin Decortisyl Decorton Delta 1-Cortisone Delta-Dome Deltacortene De
Active Comparator Group I Arm IV (Interim maintenance chemotherapy)	Patients receive HDMTX IV over 24 hours and vincristine IV on days 1, 15, 29, and 43; mercaptopurine PO on days 1-56; and methotrexate IT on days 1 and 29. Beginning 42 hours after the start of HDMTX, patients also receive leucovorin calcium IV or PO once every 6 hours for 3 doses.	Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Other: Laboratory Biomarker Analysis Correlative studies Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine
Experimental Group 0 Induction Therapy	All patients (T-ALL and T-LLy) receive cytarabine intrathecally (IT) on day 1; vincristine sulfate IV on days 1, 8, 15, and 22; prednisone IV or PO twice daily BID on days 1-28; pegaspargase IM (may give IV over 1 to 2 hours) on day 4, 5, or 6; daunorubicin hydrochloride IV on days 1, 8, 15 and 22; and methotrexate IT on days 8 and 29 (and days 15 and 22 for patients with CNS3 disease).	Drug: Daunorubicin Hydrochloride Given IV Other names: Cerubidin Cerubidine Cloridrato de Daunorubicina Daunoblastin Daunoblastina Daunoblastine Daunomycin Hydrochloride Daunomycin, hydrochloride Daunorubicin.HC Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Prednisone Given IV or PO Other names: .delta.1-Cortisone 1, 2-Dehydrocortisone Adasone Cortancyl Dacortin DeCortin Decortisyl Decorton Delta 1-Cortisone Delta-Dome Deltacortene De
Active Comparator Group I Arm I (Consolidation chemotherapy)	Patients receive methotrexate IT on days 1, 8, 15, and 22; cyclophosphamide IV over 30 minutes on days 1 and 29; cytarabine IV over 15-30 minutes or SC on days 1-4, 8-11, 29-32, and 36-39; mercaptopurine PO on days 1-14 and 29-42; vincristine sulfate IV on days 15, 22, 43 and 50; and pegaspargase IM or IV over 1-2 hours on days 15 and 43. Patients with DS also receive leucovorin calcium PO at 48 and 60 hours after each methotrexate dose. Patients with persistent testicular disease or with DS and testicular disease undergo testicular radiotherapy on days 11-12, 15-19, and 22-26. (DS patients excluded as of 09/29/10.) Patients with intermediate-risk or high-risk disease (CNS1 or CNS2) undergo prophylactic CRT (1,200 cGy/dose) QD on days 15-21 and 22-28. Patients with low-risk disease do not undergo CRT. Patients with standard risk T-LLy received Arm I, and those with high risk T-LLy were randomized between Arm I and Arm II combination chemotherapy.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Radiation: Radiation Therapy Some patients undergo testicular and/or prophylactic cranial RT Other names: Cancer Radiotherapy ENERGY_TYPE Irradiate Irradiated Irradiation Radiation Radiation Therapy, NOS Radiotherapeutics Radiotherapy RT Therapy, Radia Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine
Active Comparator Group I Arm I (Maintenance chemotherapy)	Patients receive vincristine sulfate IV on days 1, 29, and 57; prednisone PO BID on days 1-5, 29-33, and 57-61; mercaptopurine PO QD on days 1-84; methotrexate PO on days 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, and 78; and methotrexate IT on day 1. Treatment repeats every 84 days until the total duration of study treatment is 2 years from the start of interim maintenance therapy (approximately week 119) (for girls with T-ALL), all patients with T-LLy, and 3 years from the start of interim maintenance therapy (approximately week 171) (for boys with T-ALL).	Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Other: Laboratory Biomarker Analysis Correlative studies Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine Drug: Prednisone Given IV or PO Other names: .delta.1-Cortisone 1, 2-Dehydrocortisone Adasone Cortancyl Dacortin DeCortin Decortisyl Decorton Delta 1-Cortisone Delta-Dome Deltacortene De
Active Comparator Group I Arm II (Consolidation chemotherapy)	Patients receive nelarabine IV over 60 minutes on days 1-5 and 43-47; methotrexate IT on days 15, 22, 57, and 64; cyclophosphamide IV over 30 minutes on days 8 and 50; cytarabine IV over 15-30 minutes or SC on days 8-11, 15-18, 50-53 and 57-60; mercaptopurine PO on days 8-21 and 50-63; vincristine sulfate IV on days 22, 29, 64, and 71; and pegaspargase IM or IV over 1-2 hours on days 22 and 64. Patients with persistent testicular disease or with DS and testicular disease undergo testicular radiotherapy on days 15, 22-26, and 29-33 (DS patients excluded as of 09/29/10). (Patients with intermediate-risk or high-risk disease (CNS1 or CNS2) undergo prophylactic CRT QD on days 22-28 and 29-35. Patients with high risk T-LLy were either randomized to Arm I or Arm II. Patients with T-LLy who failed induction therapy were assigned to Arm II.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Radiation: Radiation Therapy Some patients undergo testicular and/or prophylactic cranial RT Other names: Cancer Radiotherapy ENERGY_TYPE Irradiate Irradiated Irradiation Radiation Radiation Therapy, NOS Radiotherapeutics Radiotherapy RT Therapy, Radia Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78
Active Comparator Group I Arm II (Interim maintenance chemotherapy)	Patients receive vincristine sulfate IV and escalating doses of methotrexate IV on days 1, 11, 21, 31, and 41; pegaspargase* IM or IV over 1-2 hours on days 2 and 22; and methotrexate IT on days 1 and 31. Note: *Patients with an allergy to pegaspargase receive Erwinia asparaginase on Monday, Wednesday and Friday for two consecutive weeks starting the day of asparaginase substitution.	Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Asparaginase Given IM or IV Other names: ASP-1 Asparaginase II Asparaginase-E.Coli Colaspase Elspar Kidrolase L-Asnase L-ASP L-Asparaginase L-Asparagine Amidohydrolase Laspar Lcf-ASP
Active Comparator Group I Arm III (Consolidation chemotherapy)	Patients receive methotrexate IT on days 1, 8, 15, and 22; cyclophosphamide IV over 30 minutes on days 1 and 29; cytarabine IV over 15-30 minutes or SC on days 1-4, 8-11, 29-32, and 36-39; mercaptopurine PO on days 1-14 and 29-42; vincristine sulfate IV on days 15, 22, 43 and 50; and pegaspargase IM or IV over 1-2 hours on days 15 and 43. Patients with DS also receive leucovorin calcium PO at 48 and 60 hours after each methotrexate dose. Patients with persistent testicular disease or with DS and testicular disease undergo testicular radiotherapy on days 11-12, 15-19, and 22-26. (DS patients excluded as of 09/29/10.) Patients with intermediate-risk or high-risk disease (CNS1 or CNS2) undergo prophylactic CRT (1,200 cGy/dose) QD on days 15-21 and 22-28. Patients with low-risk disease do not undergo CRT.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Radiation: Radiation Therapy Some patients undergo testicular and/or prophylactic cranial RT Other names: Cancer Radiotherapy ENERGY_TYPE Irradiate Irradiated Irradiation Radiation Radiation Therapy, NOS Radiotherapeutics Radiotherapy RT Therapy, Radia Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine
Active Comparator Group I Arm III (Interim maintenance chemotherapy)	Patients receive HDMTX IV over 24 hours and vincristine sulfate IV on days 1, 15, 29, and 43; mercaptopurine PO on days 1-56; and methotrexate IT on days 1 and 29. Beginning 42 hours after the start of HDMTX, patients also receive leucovorin calcium IV or PO once every 6 hours for 3 doses.	Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Other: Laboratory Biomarker Analysis Correlative studies Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine
Active Comparator Group I Arm IV (Delayed intensification chemotherapy)	Patients receive vincristine sulfate IV on days 1, 8, 15, and 50; dexamethasone IV or PO BID on days 1-21 (for patients < 10 years of age) OR on days 1-7 and 15-21 (for patients >= 10 years of age); doxorubicin IV on days 1, 8, and 15; pegaspargase IM or IV over 1-2 hours on day 4, 5, OR 6 AND day 50; methotrexate IT on days 1, 36, and 43; nelarabine IV over 60 minutes on days 29-33; cyclophosphamide IV over 30 minutes on day 36; cytarabine IV over 15-30 minutes or SC on days 36-39 and 43-46; and thioguanine PO on days 36-49.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Doxorubicin Hydrochloride Given IV Other names: 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxy]-7,8, 9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-, hydrochloride, (8S-cis)- (9CI) ADM Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Dexamethasone Given IV or PO Other names: Aacidexam Adexone Aknichthol Dexa Alba-Dex Alin Alin Depot Alin Oftalmico Amplidermis Anemul mono Auricularum Auxiloson Baycadron Baycut Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78 Drug: Thioguanine Given PO Other names: 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-thio
Active Comparator Group I Arm IV (Maintenance chemotherapy)	Patients receive vincristine sulfate, prednisone, mercaptopurine, methotrexate PO, methotrexate IT, and nelarabine in Cycles 1, 2 and 3. Patients then receive treatment (without nelarabine) as follows: vincristine, prednisone, mercaptopurine, methotrexate PO, and methotrexate IT as in arm II. Treatment (without nelarabine) repeats every 84 days until the total duration of study treatment is 2 years from the start of interim maintenance therapy (approximately week 121) (for girls with T-ALL), and for those with T-LLY, and 3 years from the start of interim maintenance therapy (approximately week 173) (for boys with T-ALL).	Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78 Drug: Prednisone Given IV or PO Other names: .delta.1-Cortisone 1, 2-Dehydrocortisone Adasone Cortancyl Dacortin DeCortin Decortisyl Decorton Delta 1-Cortisone Delta-Dome Deltacortene De
Active Comparator Group 1 Arm IV (Consolidation chemotherapy)	Patients receive nelarabine IV over 60 minutes on days 1-5 and 43-47; methotrexate IT on days 15, 22, 57, and 64; cyclophosphamide IV over 30 minutes on days 8 and 50; cytarabine IV over 15-30 minutes or SC on days 8-11, 15-18, 50-53 and 57-60; mercaptopurine PO on days 8-21 and 50-63; vincristine sulfate IV on days 22, 29, 64, and 71; and pegaspargase IM or IV over 1-2 hours on days 22 and 64. Patients with persistent testicular disease or with DS and testicular disease undergo testicular radiotherapy on days 15, 22-26, and 29-33 (DS patients excluded as of 09/29/10). (Patients with intermediate-risk or high-risk disease (CNS1 or CNS2) undergo prophylactic CRT QD on days 22-28 and 29-35.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Radiation: Radiation Therapy Some patients undergo testicular and/or prophylactic cranial RT Other names: Cancer Radiotherapy ENERGY_TYPE Irradiate Irradiated Irradiation Radiation Radiation Therapy, NOS Radiotherapeutics Radiotherapy RT Therapy, Radia Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78
Active Comparator Group I Arm I (Delayed intensification chemotherapy	Patients receive vincristine sulfate IV on days 1, 8, 15, 43, and 50; dexamethasone IV or PO BID on days 1-21 (for patients < 10 years of age) OR on days 1-7 and 15-21 (for patients >= 10 years of age and for patients with DS); doxorubicin hydrochloride IV on days 1, 8, and 15; pegaspargase IM or IV over 1-2 hours on day 4, 5, OR 6, AND day 43; methotrexate IT on days 1, 29, and 36; cyclophosphamide IV over 30 minutes on day 29; cytarabine IV over 15-30 minutes or SC on days 29-32 and 36-39; and thioguanine PO on days 29-42. Patients with DS also receive leucovorin calcium PO at 48 and 60 hours after each methotrexate dose (DS patients excluded as of 09/29/10). Standard risk T-LLy patients were assigned to Arm I and those with high risk were randomized between Arm I and Arm II.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Doxorubicin Hydrochloride Given IV Other names: 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxy]-7,8, 9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-, hydrochloride, (8S-cis)- (9CI) ADM Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Dexamethasone Given IV or PO Other names: Aacidexam Adexone Aknichthol Dexa Alba-Dex Alin Alin Depot Alin Oftalmico Amplidermis Anemul mono Auricularum Auxiloson Baycadron Baycut Drug: Thioguanine Given PO Other names: 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-thio
Active Comparator Group I Arm I (Interim maintenance chemotherapy)	Patients receive vincristine sulfate IV and escalating doses of methotrexate IV on days 1, 11, 21, 31, and 41; pegaspargase* IM or IV over 1-2 hours on days 2 and 22; and methotrexate IT on days 1 and 31. Patients with DS also receive leucovorin calcium PO 48 and 60 hours after each methotrexate IT dose (DS patients excluded as of 09/29/10). Note: *Patients with an allergy to pegaspargase receive Erwinia asparaginase on days 2, 4, 6, 8, 10, 12, 22, 24, 26, 28, 30, and 32.	Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate
Active Comparator Group I Arm II (Delayed intensification chemotherapy)	Patients receive vincristine sulfate IV on days 1, 8, 15, and 50; dexamethasone IV or PO BID on days 1-21 (for patients < 10 years of age) OR on days 1-7 and 15-21 (for patients >= 10 years of age); doxorubicin hydrochloride IV on days 1, 8, and 15; pegaspargase IM or IV over 1-2 hours on day 4, 5, OR 6 AND day 50; methotrexate IT on days 1, 36, and 43; nelarabine IV over 60 minutes on days 29-33; cyclophosphamide IV over 30 minutes on day 36; cytarabine IV over 15-30 minutes or SC on days 36-39 and 43-46; and thioguanine PO on days 36-49.	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Doxorubicin Hydrochloride Given IV Other names: 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxy]-7,8, 9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-, hydrochloride, (8S-cis)- (9CI) ADM Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Dexamethasone Given IV or PO Other names: Aacidexam Adexone Aknichthol Dexa Alba-Dex Alin Alin Depot Alin Oftalmico Amplidermis Anemul mono Auricularum Auxiloson Baycadron Baycut Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78 Drug: Thioguanine Given PO Other names: 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-thio
Active Comparator Group I Arm II (Maintenance chemotherapy)	Patients receive vincristine sulfate, prednisone, mercaptopurine, methotrexate PO, methotrexate IT, and nelarabine in Cycles 1, 2 and 3. Patients then receive treatment (without nelarabine) as follows: vincristine sulfate, prednisone, mercaptopurine, methotrexate PO, and methotrexate IT as in arm II. Treatment (without nelarabine) repeats every 84 days until the total duration of study treatment is 2 years from the start of interim maintenance therapy (approximately week 121) (for girls with T-ALL), and for those with T-LLY, and 3 years from the start of interim maintenance therapy (approximately week 173) (for boys with T-ALL).	Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Mercaptopurine Given PO Other names: 3H-Purine-6-thiol 6 MP 6 Thiohypoxanthine 6 Thiopurine 6-Mercaptopurine 6-Mercaptopurine Monohydrate 6-MP 6-Purinethiol 6-Thiopurine 6-Thioxopurine Drug: Nelarabine Given IV Other names: 2-Amino-6-methoxypurine arabinoside 506U78 Arranon Compound 506U78 GW506U78 Drug: Prednisone Given IV or PO Other names: .delta.1-Cortisone 1, 2-Dehydrocortisone Adasone Cortancyl Dacortin DeCortin Decortisyl Decorton Delta 1-Cortisone Delta-Dome Deltacortene De
Active Comparator Group I Arm III (Delayed intensification chemotherapy)	Patients receive vincristine sulfate IV on days 1, 8, 15, 43, and 50; dexamethasone IV or PO BID on days 1-21 (for patients < 10 years of age) OR on days 1-7 and 15-21 (for patients >= 10 years of age and for patients with DS); doxorubicin hydrochloride IV on days 1, 8, and 15; pegaspargase IM or IV over 1-2 hours on day 4, 5, OR 6, AND day 43; methotrexate IT on days 1, 29, and 36; cyclophosphamide IV over 30 minutes on day 29; cytarabine IV over 15-30 minutes or SC on days 29-32 and 36-39; and thioguanine PO on days 29-42. Patients with DS also receive leucovorin calcium PO at 48 and 60 hours after each methotrexate dose (DS patients excluded as of 09/29/10).	Drug: Cyclophosphamide Given IV Other names: (-)-Cyclophosphamide 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate Carloxan Ciclofosfamida Ciclofosfamide Cicloxal Clafen < Drug: Doxorubicin Hydrochloride Given IV Other names: 5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-alpha-L-lyxo-hexopyranosyl)oxy]-7,8, 9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-, hydrochloride, (8S-cis)- (9CI) ADM Drug: Leucovorin Calcium Given PO Other names: Adinepar Calcifolin Calcium (6S)-Folinate Calcium Folinate Calcium Leucovorin Calfolex Calinat Cehafolin Citofolin Citrec Citrovorum Factor C Drug: Methotrexate Given IT or PO Other names: Abitrexate Alpha-Methopterin Amethopterin Brimexate CL 14377 CL-14377 Emtexate Emthexat Emthexate Farmitrexat Fauldexato Folex Folex PFS Drug: Pegaspargase Given IM or IV Other names: L-Asparaginase with Polyethylene Glycol Oncaspar Oncaspar-IV PEG-Asparaginase PEG-L-Asparaginase PEG-L-Asparaginase (Enzon - Kyowa Hakko) PEGLA Polyethylene Glyc Drug: Vincristine Sulfate Given IV Other names: Kyocristine Leurocristine Sulfate Leurocristine, sulfate Oncovin Vincasar Vincosid Vincrex Vincristine, sulfate Drug: Cytarabine Given IT, IV, or SC Other names: .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 Drug: Dexamethasone Given IV or PO Other names: Aacidexam Adexone Aknichthol Dexa Alba-Dex Alin Alin Depot Alin Oftalmico Amplidermis Anemul mono Auricularum Auxiloson Baycadron Baycut Drug: Thioguanine Given PO Other names: 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-thio