Phase II Pilot Study of Granulocyte Colony-Stimulating Factor for Inherited Bone Marrow Failure Syndromes

Phase 2

Completed

• Conditions: Shwachman Syndrome; Fanconi's Anemia; Dyskeratosis Congenita; Thrombocytopenia

• Registration Number: NCT00004787
• Lead Sponsor: National Center for Research Resources (NCRR)

Brief Summary

OBJECTIVES: I. Assess the efficacy of recombinant human granulocyte colony-stimulating factor (G-CSF) in raising the absolute neutrophil count, platelet count, and hemoglobin level in patients with inherited bone marrow failure syndromes.

II. Assess the efficacy of a reduced maintenance dose in patients who respond to daily G-CSF.

III. Assess the toxic effects of G-CSF in these patients. IV. Measure bone marrow progenitor colonies before and after G-CSF. V. Measure CD34-positive cells in marrow and blood before and after G-CSF using flow cytometry and immunohistochemistry.

Detailed Description

PROTOCOL OUTLINE: Patients receive granulocyte colony-stimulating factor (G-CSF) subcutaneously every day for 8 weeks; nonresponders receive an increased dose for an additional 8 weeks. Patients who respond at week 8 or 16 are then tapered to a lower maintenance dose of G-CSF administered every other day through week 40. The dose is adjusted to maintain an absolute neutrophil count above 1500.

Patients are removed from study for failure to achieve a complete response by week 16, unacceptable nonhematologic toxicity, the identification of a clonal karyotype in marrow, or the onset of leukemia.

Study Timeline

• Study Start: 1994-12
• Study First Submitted: 2000-02-24
• Study First Submitted QC: 2000-02-24
• Study First Posted: 2000-02-25
• Status Verified: 2001-12
• Last Update Submitted: 2005-06-23
• Last Update Posted: 2005-06-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: Not specified