A Phase I/II Study of Combined Enrichment of CD34+ Cells and Depletion of B-Cells From Peripheral Blood Stem Cell Components for Patients With B-Lymphoid Malignancies
monoclonal antibody CD19
+ monoclonal antibody CD20
+ in vitro-treated peripheral blood stem cell transplantation
Blood Protein Disorders+40
+ Cardiovascular Diseases
+ Chronic Disease
Treatment Study
Summary
Study start date: February 1, 1999
Actual date on which the first participant was enrolled.OBJECTIVES: I. Evaluate the efficiency of tumor cell removal by immunomagnetic technique in patients with B cell malignancies. II. Determine toxicity of mobilized peripheral blood stem cell (PBSC) components of enriched CD34+ and depleted B cells in this patient population. III. Compare recovery with the use of this treatment regimen to the use of unmanipulated PBSC or CD34+ PBSC components in this patient population. OUTLINE: Patients are assigned to one of two treatment arms for chemotherapy (chemotherapy protocol following FHCRC-506.2). Patients undergo mobilization and isolation of CD34+ cells as described in FHCRC-506.2. Peripheral blood stem cells are collected by apheresis and the CD34+ cells are isolated using magnetic beads. Monoclonal antibodies to CD19 and CD20 are added to the CD34+ cells to sensitize any remaining tumor cells. Patients undergo transplantation on day 0, according to applicable transplant protocols, one month after mobilization. Some patients may receive posttransplant interleukin-2 after achieving durable engraftment. Patients are followed at day 30, 80, 180, 365, and 395. PROJECTED ACCRUAL: A total of 20-30 patients will be accrued for this study.
Protocol
This section provides details of the study plan, including how the study is designed and what the study is measuring.Treatment Study
Eligibility
Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.Any sex
Biological sex of participants that are eligible to enroll.Until 70 Years
Range of ages for which participants are eligible to join.Healthy volunteers not allowed
If individuals who are healthy and do not have the condition being studied can participate.Conditions
Pathology
Criteria
DISEASE CHARACTERISTICS: Histologically confirmed recurrent B cell malignancy that is positive for CD19 and/or CD20 antigens Demonstrated or probable tumor cell contamination of peripheral blood stem cell components No CNS metastases High risk B cell malignancy indicative of autologous hematopoietic stem cell transplantation No HLA matched donors Eligible for mobilization of blood stem cells using chemotherapy and G-CSF Eligible for transplantation on a protocol covering classification and stage of malignancy Intention to proceed to transplantation within 60 days of peripheral blood stem cell collection PATIENT CHARACTERISTICS: Age: 70 and under Performance status: Karnofsky 70-100% Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: No active infection HIV negative Adequate organ function as defined in the mobilization and transplant protocols At least 20 CD34+ cells/uL in the peripheral blood before immunomagnetic separation PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: Not specified Endocrine therapy: Not specified Radiotherapy: Not specified Surgery: Not specified
Study Centers
These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.This study has 1 location
Fred Hutchinson Cancer Research Center
Seattle, United StatesOpen Fred Hutchinson Cancer Research Center in Google Maps