Beta-Glucan and Rituximab in Treating Young Patients With Relapsed or Progressive Lymphoma or Leukemia, or Lymphoproliferative Disorder Related to Donor Stem Cell Transplantation

Lymphoma Clinical Trial

Official title: Phase I Study of Oral ß-Glucan and Intravenous Rituximab Among Children and Adolescents With Relapsed CD20-Positive Lymphoma or Leukemia, or Post-Transplant Lymphoproliferative Disease

Status Terminated

Clinical Trial Summary

RATIONALE: Monoclonal antibodies such as rituximab can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. Beta-glucan may increase the effectiveness of rituximab by making cancer cells more sensitive to the monoclonal antibody.

PURPOSE: This phase I trial is studying the side effects and best dose of beta-glucan when given together with rituximab in treating young patients with relapsed or progressive lymphoma or leukemia or with lymphoproliferative disorder related to donor stem cell transplantation.

Clinical Trial Description

OBJECTIVES:

Primary

• Determine the maximum tolerated dose of beta-glucan when given in combination with rituximab in pediatric patients with relapsed or progressive CD20-positive lymphoma or leukemia or post-allogeneic stem cell transplant-related lymphoproliferative disorder.

• Determine the toxicity of this regimen, with special emphasis on the degree of B-cell depletion and immune suppression, in these patients.

• Determine the effects of beta-glucan on leukocyte-mediated cytotoxic effects in patients treated with this regimen.

Secondary

• Determine the antitumor effect of this regimen in these patients.

OUTLINE: This is a dose-escalation study of beta-glucan. Patients are assigned to 1 of 2 treatment groups according to diagnosis.

• Group I (lymphoma or leukemia): Patients receive rituximab IV on days 1, 8, 15, and 22 and oral beta-glucan once daily on days 1-28 (days 8-28 of course 1). Treatment repeats every 42 days for 4 courses in the absence of disease progression or unacceptable toxicity.

• Group II (post-allogeneic stem cell transplant-related lymphoproliferative disorder):

Patients receive rituximab IV on days 1, 4, 8, 15, and 22 and oral beta-glucan once daily on days 8-28. Beginning on day 42, patients with responding disease may receive monthly rituximab prophylaxis until their CD4 cell count is > 200/mm^3.

Cohorts of 6 patients receive escalating doses of beta-glucan until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity.

Patients are followed every 3 months for 2 years.

PROJECTED ACCRUAL: A total of 6-24 patients will be accrued for this study within 2 years. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Leukemia
• Lymphoma
• Lymphoproliferative Disorder
• Lymphoproliferative Disorders

• NCT number: NCT00087009
• Study type: Interventional
• Source: Memorial Sloan Kettering Cancer Center
• Status: Terminated
• Phase: Phase 1
• Start date: May 2004
• Completion date: August 2008