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Study of Dasatinib in Patients With Chronic Phase Chronic Myeloid Leukemia and a Suboptimal Response to Imatinib

Leukemia, Myeloid, Chronic Clinical Trial

Official title:
An Open-label, Randomized Study of Dasatinib vs High-dose (800-mg) Imatinib in the Treatment of Subjects With Chronic Phase Chronic Myeloid Leukemia Who Have Had a Suboptimal Response After at Least 3 Months of Therapy With 400 mg Imatinib

Clinical Trial Summary

The purpose of this study is to compare the efficacy of dasatinib with that of high-dose (800-mg) imatinib in participants with chronic phase chronic myeloid leukemia who achieved only a suboptimal response after at least 3 months of monotherapy with 400-mg imatinib. The safety of these treatments will also be evaluated.

Clinical Trial Description

Participants were randomized 2:1 to dasatinib or high-dose imatinib, respectively. Randomization was stratified by a suboptimal response, defined as a hematologic response less than a complete hematologic response after at least 3 months of monotherapy with 400-mg imatinib; a cytogenic response (CgR) less than a partial CgR (PCgR) after at least 6 months of monotherapy with 400-mg; a PCgR after at least 12 months of monotherapy with 400-mg imatinib; or less than a major molecular response with a complete CgR after at least 18 months of monotherapy with 400-mg imatinib.

Participants received either dasatinib or imatinib for 12 months or until disease progression, unacceptable toxicity, consent withdrawal, or study discontinuation. After 12 months, who had a confirmed major molecular response and were still receiving dasatinib, 100 mg, or imatinib, 800 mg, were eligible to extend treatment for an additional 12 months. Participants permanently discontinuing treatment before 12 months were considered treatment failures and withdrawn from the study. ;

Study Design

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

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00320190
Study type Interventional
Source Bristol-Myers Squibb
Contact
Status Terminated
Phase Phase 2
Start date August 2006
Completion date January 2010
View Details
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