Phase II Study of GM-CSF in Patients With Chronic Phase Chronic Myeloid Leukemia (CP-CML) Who Are Not in Complete Cytogenetic Remission After Initial Therapy

OBJECTIVES:

• Determine the efficacy and safety of sargramostim (GM-CSF) by cytogenetic examination of the bone marrow in patients with chronic phase chronic myelogenous leukemia who are not in complete cytogenetic remission after initial therapy.

OUTLINE: Patients receive sargramostim (GM-CSF) subcutaneously daily for 3 months in the absence of disease progression or unacceptable toxicity. Patients achieving no response receive GM-CSF for an additional 3 months. Patients failing to achieve a partial response or better after the second course of GM-CSF are removed from the study. Patients achieving a partial response after the first or second course of GM-CSF continue to receive GM-CSF for an additional 9 months. Patients are then re-evaluated. Patients achieving a complete cytologic response at 9 months then receive GM-CSF 3 times weekly in the absence of disease progression or unacceptable toxicity.

Patients are followed every 2 weeks.

PROJECTED ACCRUAL: A total of 9-24 patients will be accrued for this study within 3 years.