Pentostatin, Cyclophosphamide, and Rituximab in Treating Patients With Previously Untreated Chronic Lymphocytic Leukemia
RATIONALE: Pentostatin may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. Giving pentostatin together with cyclophosphamide and rituximab may kill more cancer cells.
PURPOSE: This phase II trial is studying the side effects and how well giving pentostatin together with cyclophosphamide and rituximab works in treating patients with previously untreated chronic lymphocytic leukemia.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Phase II Study of Pentostatin With Cyclophosphamide and Rituximab for Previously Untreated Patients With Chronic Lymphocytic Leukemia|
- Complete response [ Time Frame: 2 years ] [ Designated as safety issue: No ]
- Toxicity [ Time Frame: 2 years ] [ Designated as safety issue: Yes ]
|Study Start Date:||May 2005|
|Estimated Study Completion Date:||May 2014|
|Estimated Primary Completion Date:||May 2014 (Final data collection date for primary outcome measure)|
Experimental: cyclophosphamide, pentostatin & rituximab
Patients receive cyclophosphamide IV followed by pentostatin IV on day 1 in course 1. Beginning in course 2 and in all subsequent courses, patients receive cyclophosphamide IV on day 1, pentostatin IV on day 1, and rituximab IV on day 1 or on days 1 and 2. Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
|Biological: rituximab Drug: cyclophosphamide Drug: pentostatin|
- To determine the frequency of response in patients with previously untreated, intermediate- or high-risk B-cell chronic lymphocytic leukemia (CLL) treated with pentostatin, cyclophosphamide, and rituximab.
- To characterize the toxicity of this regimen in these patients.
OUTLINE: Patients receive cyclophosphamide IV followed by pentostatin IV on day 1 in course 1. Beginning in course 2 and in all subsequent courses, patients receive cyclophosphamide IV on day 1, pentostatin IV on day 1, and rituximab IV on day 1 or on days 1 and 2. Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed at least every 3 months for 1 year.
|United States, New York|
|Memorial Sloan-Kettering Cancer Center|
|New York, New York, United States, 10065|
|Principal Investigator:||Nicole Lamanna, MD||Memorial Sloan-Kettering Cancer Center|
|Principal Investigator:||Renier Brentjens, MD, PhD||Memorial Sloan-Kettering Cancer Center|