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Bryostatin 1 in Treating Patients With Relapsed Non-Hodgkin's Lymphoma or Chronic Lymphocytic Leukemia

2014-08-27 03:58:55 | BioPortfolio

Summary

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells.

PURPOSE: Phase I/II trial to study the effectiveness of bryostatin 1 in treating patients who have relapsed non-Hodgkin's lymphoma or chronic lymphocytic leukemia.

Description

OBJECTIVES: I. Assess the efficacy of bryostatin 1 administered as a 72-hour infusion in patients with relapsed non-Hodgkin's lymphoma and chronic lymphocytic leukemia. II. Gain information regarding the toxicity and tolerability of escalated vincristine doses given after each bryostatin 1 infusion in cohorts of patients who fail to respond to bryostatin alone. III. Determine the qualitative and quantitative toxic effects of bryostatin 1 in these patients. IV. Determine the duration of response and survival following treatment with bryostatin 1.

OUTLINE: All patients receive bryostatin 1 by 72-hour continuous infusion every 2 weeks until disease progression or until 2 courses beyond documentation of complete remission. Response is assessed after every 4 courses. Patients with disease progression who continue to meet the eligibility criteria receive vincristine within 2 hours after completion of each bryostatin 1 infusion. Groups of 3-6 patients receive escalated doses of vincristine until the maximum tolerated dose with bryostatin 1 is determined. Courses repeat every 2 weeks, as above; no individual dose escalation is allowed. No concurrent steroids are permitted. Patients are followed for survival.

PROJECTED ACCRUAL: A total of 25 evaluable patients with low-grade NHL or CLL will be entered over approximately 20 months if there are 2-4 responses in the first 15 patients. A total of 20 evaluable patients with intermediate- or high-grade NHL will be entered over approximately 2 years if there are 1 or 2 responses in the first 10 patients.

Study Design

Primary Purpose: Treatment

Conditions

Leukemia

Intervention

bryostatin 1, vincristine sulfate

Location

Barbara Ann Karmanos Cancer Institute
Detroit
Michigan
United States
48201

Status

Completed

Source

National Cancer Institute (NCI)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:58:55-0400

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Medical and Biotech [MESH] Definitions

Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.

An enzyme that catalyzes the activation of sulfate ions by ATP to form adenosine-5'-phosphosulfate and pyrophosphate. This reaction constitutes the first enzymatic step in sulfate utilization following the uptake of sulfate. EC 2.7.7.4.

An arylsulfatase that catalyzes the hydrolysis of the 4-sulfate groups of the N-acetyl-D-galactosamine 4-sulfate units of chondroitin sulfate and dermatan sulfate. A deficiency of this enzyme is responsible for the inherited lysosomal disease, Maroteaux-Lamy syndrome (MUCOPOLYSACCHARIDOSIS VI). EC 3.1.6.12.

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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.

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