Combination Chemotherapy with or without Rituximab in Treating Younger Patients with Stage III-IV Non-Hodgkin Lymphoma or B-Cell Acute Leukemia

PRIMARY OBJECTIVES:

I. For the patients with advanced stage B-cell non-Hodgkin lymphoma (NHL)/Burkitt acute leukemia (B-AL) (stage III and lactate dehydrogenase (LDH) > twice the institutional upper limit of the adult normal values (Nx2), any stage IV or B-AL), to test whether adding 6 injections of rituximab to standard Lymphome Malin B (LMB) chemotherapy regimen, improves the event-free survival (EFS) compared with LMB chemotherapy alone. (Phase III)

II. For patients with primary mediastinal large B-cell lymphoma (PMLBL), to evaluate the EFS following treatment with the regimen dose-adjusted etoposide, prednisone, vincristine sulfate, cyclophosphamide, doxorubicin hydrochloride (DA-EPOCH)-rituximab. (Phase II)

SECONDARY OBJECTIVES:

I. To study the complete remission (CR) rate and the overall survival (OS).

II. To evaluate safety on all study arms including toxic deaths, adverse events recorded using the National Cancer Institute (NCI)-Common Terminology Criteria (CTC) version (V)4 (non hematological toxicity grade >= 3, infections grade 3 to 5), cardiac toxicity (CTC grade 2-5 and evolution of left ventricular ejection fraction and left ventricular shortening fraction), number of days with platelets transfusion, intensive care unit admission and number of days with red cells transfusion, rituximab infusion reactions.

III. To study the rate of patients with immunoglobulin (Ig) (G, A, and M) levels abnormally low and lymphocyte count abnormally low at 1 year and until 5-year follow-up, and to study the need for immunoglobulin infusions, and levels of post (previous and re-) vaccination antibodies at 1 year.

IV. To study long term (at least 5 years) risks of the use of rituximab plus chemotherapy compared with LMB chemotherapy alone in children and adolescents with advanced stage B-NHL/B-AL (all events related [certain and probable] to therapy). (Phase III)

V. To study the long term risk of DA-EPOCH-R regimen, especially the cardiac risk related to doxorubicin given at higher dose than usual in children, but infused over 96 hours (i.e., evaluation of CTC grade 2-5 and evolution of left ventricular ejection fraction and left ventricular shortening fraction). (Phase II)

TERTIARY OBJECTIVES:

I. To obtain data on positron emission tomography (PET)-computed tomography (CT) scan in childhood pediatric B-cell NHL. (Exploratory)

II. To evaluate the potential prognostic value of Minimal Disseminated Disease (MDD) and Minimal Residual disease (MRD) in correlation with outcome. (Exploratory - Phase III)

III. To perform an economic study comparing the cost-effectiveness ratio between 2 therapeutic strategies: LMB chemotherapy with versus LMB chemotherapy without rituximab. (Exploratory - Phase III)

IV. To characterize the pharmacokinetics of rituximab in combination with LMB chemotherapy in a subset of patients. (Exploratory - Phase III)

OUTLINE:

Phase II (patients with PMLBL): Patients receive rituximab intravenously (IV) on day 1; prednisone orally (PO) twice daily (BID) or IV on day on days 1-5; etoposide IV continuously on days 1-4; doxorubicin hydrochloride IV continuously on days 1-4; vincristine sulfate IV continuously on days 1-4; and cyclophosphamide IV on day 5. Patients also receive filgrastim subcutaneously (SC) once daily (QD) beginning on day 6 until blood count recovers. Treatment repeats every 21 days for up to 6 courses in the absence of disease progression or unacceptable toxicity.

Phase III:

Group I (pre-phase central nervous system [CNS]-negative, cerebral spinal fluid [CSF]-negative): Patients receive vincristine sulfate IV on day 1; cyclophosphamide IV over 15 minutes on day 1; prednisone PO BID or methylprednisolone IV on days 1-7; methotrexate intrathecally (IT) and hydrocortisone IT on day 1. Patients are randomized to 1 of 2 treatment arms.

Arm I (R-COPADM induction therapy): Beginning 8 days later, patients receive rituximab IV on day 1; vincristine sulfate IV on day 1; prednisone PO BID or methylprednisolone IV on days 1-5; methotrexate IV over 3 hours on day 1; leucovorin calcium PO every 6 hours on days 2-4; cyclophosphamide IV over 15 minutes on days 2-4; doxorubicin hydrochloride over 1 hour on day 2; and methotrexate IT and hydrocortisone IT on days 2 and 6. Treatment repeats every 18-21 days for 2 courses. Consolidation therapy (R-COPADM): Patients receive rituximab IV on day 1; methotrexate IV over 3 hours on day 1; leucovorin calcium PO every 6 hours on days 2-4; cytarabine IV continuously on days 2-6; methotrexate IT on day 2; hydrocortisone IT on days 2 and 7; and cytarabine IT on day 7. Treatment repeats every 21 days for 2 courses.

Arm II (COPADM induction therapy): Beginning 8 days later, patients receive vincristine sulfate, prednisone or methylprednisolone, methotrexate, leucovorin calcium, cyclophosphamide, doxorubicin, methotrexate IT, and hydrocortisone IT as in arm I. Treatment repeats every 18-21 days for 2 courses.

Consolidation therapy (COPADM): Patients receive methotrexate IV over 3 hours on day 1; leucovorin calcium PO every 6 hours on days 2-4; cytarabine IV over 12 hours on days 2-6; methotrexate IT on day 2; hydrocortisone IT on days 2 and 7; and cytarabine IT on day 7. Treatment repeats every 21 days for 2 courses.

Group II (pre-phase B-AL, CNS-negative OR CNS-positive, CSF-negative OR CSF-positive): Patients receive vincristine sulfate IV on day 1; cyclophosphamide IV over 15 minutes on day 1; prednisone PO BID or methylprednisolone IV on days 1-7; methotrexate IT, hydrocortisone IT, and cytarabine IT on days 1, 3, and 5; and leucovorin calcium PO BID on days 2 and 4. Patients are randomized to 1 of 2 treatment arms.

Arm III (R-COPADM induction therapy): Patients receive rituximab IV on days -2 (course 1) and 1; vincristine sulfate IV on day 1; prednisone PO or methylprednisolone IV on days 1-5; high-dose methotrexate IV over 4 hours* on day 1; leucovorin calcium PO every 6 hours on days 2-4; cyclophosphamide IV over 15 minutes on days 2-4; doxorubicin hydrochloride IV on day 2; and methotrexate IT, hydrocortisone IT, and cytarabine IT on days 2, 4, and 6. Treatment repeats every 21 days for 2 courses.

NOTE: *During the second course, patients with CSF-positive disease receive high-dose methotrexate IV over 24 hours (instead of 4 hours).

Consolidation therapy (R-COPADM): Patients receive rituximab IV on day 1; hydrocortisone IT and methotrexate IT on day 1; cytarabine IV over 12 hours on days 1-5; high-dose cytarabine IV over 3 hours on day 2-5; and etoposide IV over 2 hours on days 2-5. If CSF-positive, patients receive high-dose methotrexate IV over 24 hours on day 18, methotrexate IT, hydrocortisone IT, and cytarabine IT on day 19, and leucovorin calcium PO every 6 hours on days 19-21. Treatment repeats every 21 days for 2 courses.

Maintenance therapy (R-COPADM): Patients receive vincristine sulfate IV on day 1; prednisone PO or methylprednisolone IV on days 1-5; high-dose methotrexate IV over 4 hours on day 1; leucovorin calcium PO every 6 hours on days 2-4; cyclophosphamide IV over 15 minutes on days 2-3; doxorubicin hydrochloride over 1 hour on day 2; and methotrexate IT, hydrocortisone IT, and cytarabine IT on day 2. Beginning 28 days later, patients receive cytarabine subcutaneously (SC) every 12 hours on days 1-5 and etoposide IV over 90 minutes on days 1-3.

Arm IV (COPADM induction therapy): Patients receive vincristine sulfate, prednisone or methylprednisolone, high-dose methotrexate*, leucovorin calcium, cyclophosphamide, doxorubicin hydrochloride, and methotrexate, hydrocortisone, and cytarabine IT as in arm III. NOTE: *Patients with CSF-positive disease receive high-dose methotrexate IV over 24 hours (instead of 4 hours).

Consolidation therapy (COPADM): Patients receive hydrocortisone and methotrexate IT, cytarabine, high-dose cytarabine, and etoposide as in arm III consolidation therapy.

Maintenance therapy (COPADM): Patients receive vincristine sulfate, prednisone or methylprednisolone, high-dose methotrexate*, leucovorin calcium, cyclophosphamide, doxorubicin hydrochloride, methotrexate IT, hydrocortisone IT, cytarabine IT, cytarabine SC, and etoposide as in arm III maintenance therapy.

NOTE: *Patients with CSF-positive disease receive high-dose methotrexate IV over 24 hours.

After completion of study treatment, patients are followed up for 5 years.