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Clinical Trial Summary

This phase II trial is studying how well AZD2171 works in treating patients with relapsed or refractory B-cell chronic lymphocytic leukemia. AZD2171 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the cancer cells


Clinical Trial Description

OBJECTIVES:

I. Evaluate the response rate in patients with relapsed or refractory B-cell chronic lymphocytic leukemia (B-CLL) treated with AZD2171.

II. Evaluate the toxicity of AZD2171 in patients with relapsed or refractory B-CLL.

III. Evaluate the complete response rate, progression-free and overall survival distributions, and duration of response in patients with relapsed or refractory B-CLL treated with AZD2171.

IV. Assess vascular endothelial growth factor receptor-2 (VEGFR-2) protein and phosphorylation levels in B-CLL cells using pretreatment samples and evaluate the association between Rai stage at study entry and clinical response to AZD2171.

V. Perform preclinical testing of AZD2171 in the induction of B-CLL cell apoptosis/cell death using pretreatment samples, and evaluate the ability to downregulate the phosphorylation status of VEGFR-2 of B-CLL cells by comparing in vitro samples with and without AZD2171.

VI. Study the differences in in vitro levels of B-CLL cell apoptosis/cell death and alteration of VEGFR-2 phosphorylation using pretreatment samples with and without AZD2171 and how these differences correlate with clinical outcomes.

VII. Assess if the clinical responses are associated with changes in bone marrow vascularity.

OUTLINE: This is a multicenter study.

Patients receive oral AZD2171 once daily on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.

Patients undergo blood sampling and biopsies at baseline and periodically throughout study for biomarker and correlative studies.

After completion of study therapy, patients are followed periodically for up to 5 years from study entry. ;


Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms

  • B-cell Chronic Lymphocytic Leukemia
  • Leukemia
  • Leukemia, Lymphocytic, Chronic, B-Cell
  • Leukemia, Lymphoid
  • Refractory Chronic Lymphocytic Leukemia

NCT number NCT00321724
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Completed
Phase Phase 2
Start date May 2006

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