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Discontinuation of Imatinib Mesylate in Patients With Chronic-Phase Chronic Myeloid Leukemia Previously Treated With Interferon-Alpha

2014-08-27 03:15:43 | BioPortfolio

Summary

To investigate whether patients with chronic-phase chronic myeloid leukemia (CP-CML) previously treated with interferon-alpha (IFN) and presently on a tyrosine kinase inhibitor (TKI) (imatinib mesylate, dasatinib, or nilotinib) with achievement of a complete cytogenetic and at least a major molecular remission, are able to discontinue therapy and maintain a durable remission. Relapse-free survival (RFS) rate at 1 year after discontinuation of TKI will be the measurement of this objective.

Study Design

Observational Model: Case-Only, Time Perspective: Prospective

Conditions

Chronic Myeloid Leukemia

Intervention

Discontinuation of therapy

Location

University of Michigan Cancer Center
Ann Arbor
Michigan
United States
48109

Status

Recruiting

Source

University of Michigan Cancer Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:15:43-0400

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Medical and Biotech [MESH] Definitions

The phase of chronic myeloid leukemia following the chronic phase (LEUKEMIA, MYELOID, CHRONIC-PHASE), where there are increased systemic symptoms, worsening cytopenias, and refractory LEUKOCYTOSIS.

Clonal hematopoetic disorder caused by an acquired genetic defect in PLURIPOTENT STEM CELLS. It starts in MYELOID CELLS of the bone marrow, invades the blood and then other organs. The condition progresses from a stable, more indolent, chronic phase (LEUKEMIA, MYELOID, CHRONIC PHASE) lasting up to 7 years, to an advanced phase composed of an accelerated phase (LEUKEMIA, MYELOID, ACCELERATED PHASE) and BLAST CRISIS.

A myelodysplastic/myeloproliferative disorder characterized by myelodysplasia associated with bone marrow and peripheral blood patterns similar to CHRONIC MYELOID LEUKEMIA, but cytogenetically lacking a PHILADELPHIA CHROMOSOME or bcr/abl fusion gene (GENES, ABL).

An alkylating agent having a selective immunosuppressive effect on BONE MARROW. It has been used in the palliative treatment of chronic myeloid leukemia (MYELOID LEUKEMIA, CHRONIC), but although symptomatic relief is provided, no permanent remission is brought about. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), busulfan is listed as a known carcinogen.

The initial phase of chronic myeloid leukemia consisting of an relatively indolent period lasting from 4 to 7 years. Patients range from asymptomatic to those exhibiting ANEMIA; SPLENOMEGALY; and increased cell turnover. There are 5% or fewer blast cells in the blood and bone marrow in this phase.

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