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Combination Chemotherapy With or Without Bone Marrow Transplantation in Treating Children With Acute Myeloid Leukemia

2014-08-27 03:58:41 | BioPortfolio

Summary

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining chemotherapy with bone marrow transplantation may allow doctors to give higher doses of chemotherapy and kill more cancer cells. It is not yet known whether chemotherapy is more effective with or without bone marrow transplantation for acute myeloid leukemia.

PURPOSE: Randomized phase III trial to compare the effectiveness of chemotherapy with or without bone marrow transplantation in treating children who have acute myeloid leukemia.

Description

OBJECTIVES:

- Compare two induction schedules with respect to achievement and duration of remission, survival, toxicity, and supportive care requirements in children with previously untreated acute myeloid leukemia.

- Compare 4 versus 5 courses of treatment in total (where the final course is either chemotherapy or bone marrow transplantation) with respect to remission duration, relapse rates, deaths in remission, and overall survival in these patients.

- Compare the value of allogeneic bone marrow transplantation versus conventional chemotherapy with respect to remission duration, relapse rates, deaths in remission, and overall survival in these patients.

- Reduce toxicity without compromising survival by restricting the number of patients receiving bone marrow transplant in this study.

OUTLINE: This is a randomized study. Patients are first randomized to one of two induction treatment arms.

- Induction Arm I: Patients receive 2 courses of cytarabine IV push every 12 hours on days 1-10 or 1-8 (20 or 16 doses); daunorubicin IV over 6 hours on days 1, 3, and 5; and etoposide IV over 4 hours on days 1-5 (5 doses).

- Induction Arm II: Patients receive 2 courses of mitoxantrone IV over 6 hours on days 1, 3, and 5; cytarabine IV push every 12 hours on days 1-10 or 1-8 (20 or 16 doses); and etoposide IV over 4 hours on days 1-5 (5 doses).

Patients with no CNS disease at diagnosis receive 3 courses of triple intrathecal therapy (methotrexate, cytarabine, and hydrocortisone), one after each of the first 3 courses of chemotherapy. Patients with CNS disease receive at least 6 courses of intrathecal therapy (2 courses per week), then monthly courses until the final course of chemotherapy is complete.

Patients in complete response after induction course 2 continue on this study. Patients not in complete response after induction course 2 are taken off study and are eligible for the current Medical Research Council (MRC) refractory/relapse study or another therapy.

Course 3: All patients continuing on this study receive amsacrine IV over 1 hour daily on days 1-5, cytarabine continuous IV infusion daily on days 1-5, and etoposide IV over 4 hours on days 1-5 as course 3. After course 3, patients are assigned to two risk groups: good risk patients, and standard and poor risk patients.

Standard and poor risk patients with no matched sibling donor and good risk patients are then further randomized to consolidation in arms I or II.

- Arm I: Patients receive mitoxantrone IV over 6 hours on days 1-5 and cytarabine IV over 2 hours every 12 hours on days 1-3 (4 courses of chemotherapy total).

- Arm II: Patients receive cytarabine IV over 3 hours every 12 hours on days 1, 2, 8, and 9, and asparaginase subcutaneous infusion 3 hours after completion of the last cytarabine doses on days 2 and 9, followed by a course of mitoxantrone and cytarabine as in arm I (5 courses of chemotherapy total).

Standard and poor risk children with matched sibling donor are randomized to arms III or IV.

- Arm III: Patients receive no consolidation treatment (3 courses of chemotherapy total) plus bone marrow transplantation.

- Arm IV: Patients receive cytarabine and asparaginase as in arm II (4 courses of chemotherapy total) plus bone marrow transplantation.

Patients are followed for at least 1 year.

PROJECTED ACCRUAL: Approximately 2,000 patients will be accrued into this study over 5 years.

Study Design

Allocation: Randomized, Control: Active Control, Primary Purpose: Treatment

Conditions

Leukemia

Intervention

amsacrine, asparaginase, cytarabine, daunorubicin hydrochloride, etoposide, methotrexate, mitoxantrone hydrochloride, therapeutic hydrocortisone, allogeneic bone marrow transplantation

Location

Christie Hospital N.H.S. Trust
Manchester
England
United Kingdom
M20 4BX

Status

Active, not recruiting

Source

National Cancer Institute (NCI)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:58:41-0400

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Medical and Biotech [MESH] Definitions

A semisynthetic derivative of PODOPHYLLOTOXIN that exhibits antitumor activity. Etoposide inhibits DNA synthesis by forming a complex with topoisomerase II and DNA. This complex induces breaks in double stranded DNA and prevents repair by topoisomerase II binding. Accumulated breaks in DNA prevent entry into the mitotic phase of cell division, and lead to cell death. Etoposide acts primarily in the G2 and S phases of the cell cycle.

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A pyrimidine nucleoside analog that is used mainly in the treatment of leukemia, especially acute non-lymphoblastic leukemia. Cytarabine is an antimetabolite antineoplastic agent that inhibits the synthesis of DNA. Its actions are specific for the S phase of the cell cycle. It also has antiviral and immunosuppressant properties. (From Martindale, The Extra Pharmacopoeia, 30th ed, p472)

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