Phase 2 Study of the Combination of Bruton's Tyrosine Kinase Inhibitor PCI-32765 and Rituximab in High-Risk Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma Patients
The goal of this clinical research study is to learn if PCI-32765 combined with rituximab can help to control CLL and SLL. The safety of this combination will also be studied.
PCI-32765 is designed to stop a protein from working in the cells, which may cause the cancer cells to die or stop growing.
Rituximab is designed to attach to cancer cells and damage them, which may cause the cells to die.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase 2 Study of the Combination of the Bruton's Tyrosine Kinase Inhibitor PCI-32765 and Rituximab in High-Risk Chronic Lymphocytic Leukemia (CLL) and Small Lymphocytic Lymphoma (SLL) Patients|
- Progression Free Survival (PFS) [ Time Frame: 3 months ] [ Designated as safety issue: Yes ]Progression free survival defined as the time interval from treatment to progressive disease or death, whichever happens earlier. Patients in complete remission (CR), partial remission (PR) or stable disease (SD) are all counted as progression-free. Survival or times to progression functions estimated using the Kaplan-Meier method.
- Toxicity [ Time Frame: 3 months ] [ Designated as safety issue: Yes ]Toxicity reported by type, frequency and severity. Worst toxicity grades per patient tabulated for selected adverse events and laboratory measurements. Toxicity (grade 3 or 4) monitored based on the Bayesian model (beta-binomial) by assuming a priority probability of toxicity following beta(1,1).
|Study Start Date:||February 2012|
|Estimated Primary Completion Date:||February 2015 (Final data collection date for primary outcome measure)|
Experimental: Rituximab + PCI-32765
Rituximab (375 mg/m2) given intravenously (IV) on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6. PCI-32765 started on Day 2 of cycle 1 at a dose of 420 mg (3 * 140-mg capsules) orally daily and will be continued daily.
375 mg/m2 intravenously on Day 1, Day 8, Day 15, and Day 22, then continued once every 4 weeks only on Days 1 during cycles 2 - 6.
Other Name: RituxanDrug: PCI-32765
420 mg (3 * 140-mg capsules) orally started on Day 2 of cycle 1 once daily and will be continued daily.
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|United States, Texas|
|UT MD Anderson Cancer Center|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Jan A. Burger, MD||UT MD Anderson Cancer Center|