RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die.
PURPOSE: Phase II trial to study the effectiveness of 506U78 in treating patients with recurrent or refractory hematologic cancer.
OBJECTIVES:
- Determine the response rate to compound 506U78 (2-amino-9-b-D-arabinofuranosyl-6-methoxy-9H-purine) administered as a 1 hour infusion daily for 5 days in patients with recurrent T-cell malignancies.
- Determine the toxicities of compound 506U78 in this group of patients.
- Correlate the biochemical pharmacology of compound 506U78 (e.g., ara-G nucleotides in leukemic blasts and CSF concentrations) with clinical response.
- Determine the impact of compound 506U78 therapy on survival and duration of response of patients with recurrent T-cell malignancies.
OUTLINE: Patients are stratified according to disease characteristics:
- Group 1: T-cell ALL or NHL in first relapse (greater than 25% bone marrow blasts, with or without concomitant extramedullary relapse other than CNS)
- Group 2: T-cell ALL or NHL in second or later relapse (greater than 25% bone marrow blasts, with or without concomitant extramedullary relapse other than CNS)
- Group 3: T-cell ALL or NHL with positive bone marrow and CSF (greater than 5% bone marrow blasts and CNS 2 or 3 involvement)
- Group 4: Extramedullary relapse and less than 25% blasts in the bone marrow (excluding isolated CNS relapse)
Group 1
- Patients receive a 1 hour infusion of compound 506U78 daily for 5 days in the absence of neurologic toxicity. The course repeats every 21 days. If a first relapse T-cell ALL study of higher priority is not open, then the patient may continue to receive the drug every 21 days for a maximum of 2 years provided that the patient has achieved a second complete response.
Groups 2 and 4
- Patients receive compound 506U78 every 21 days for a maximum of 2 years, in the absence of disease progression. After 3 courses a patient may be given CNS prophylaxis with triple intrathecal therapy (TIT), consisting of methotrexate, cytarabine and hydrocortisone after consultation with study coordinator. TIT should be given every 12 weeks.
Group 3
- Patients receive compound 506U78 every 21 days for a maximum of 2 years, in the absence of disease progression. TIT will be given on day 1 of weeks 1-4, 6, 9 and every 6 weeks for 12 weeks, and then every 9 weeks thereafter. This stratum is open.
PROJECTED ACCRUAL: A maximum of 148 patients (37 patients per stratum) will be accrued for this study.
Primary Purpose: Treatment
Leukemia
cytarabine, methotrexate, nelarabine, therapeutic hydrocortisone
University of Alabama at Birmingham Comprehensive Cancer Center
Birmingham
Alabama
United States
35294-3300
Active, not recruiting
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:58:54-0400
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Cytarabine
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)
Ancitabine
Congener of CYTARABINE that is metabolized to cytarabine and thereby maintains a more constant antineoplastic action.
Abelson Murine Leukemia Virus
A replication-defective strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) capable of transforming lymphoid cells and producing a rapidly progressing lymphoid leukemia after superinfection with FRIEND MURINE LEUKEMIA VIRUS; MOLONEY MURINE LEUKEMIA VIRUS; or RAUSCHER VIRUS.
Friend Murine Leukemia Virus
A strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) producing leukemia of the reticulum-cell type with massive infiltration of liver, spleen, and bone marrow. It infects DBA/2 and Swiss mice.
Moloney Murine Leukemia Virus
A strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) arising during the propagation of S37 mouse sarcoma, and causing lymphoid leukemia in mice. It also infects rats and newborn hamsters. It is apparently transmitted to embryos in utero and to newborns through mother's milk.