At a glance
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A Phase 2, Multicenter, Open-label Study to Evaluate the Safety and Efficacy of AMD3100 (240 µg/kg) Added to a G-CSF Mobilization Regimen in Poor Mobilizing Adult Patients Who Have Previously Failed Stem Cell Collection/Attempts
In Brief
A Phase 2 clinical trial evaluating G-CSF plus plerixafor for Autologous Stem Cell Transplantation. Completed, enrolled 100 participants across 8 sites.
Detailed Summary
This study evaluates the safety, efficacy, and pharmacokinetics (PK) of plerixafor given in addition to granulocyte-colony stimulating factor (G-CSF) for collection of peripheral blood stem cells (PBSCs) for autologous transplantation in patients who would benefit from an autologous stem cell transplant but have failed previous collections or collection attempts with a mobilization regimen of G-CSF alone, chemotherapy and G-CSF, or any other conventional therapy including cytokines, chemotherapy and cytokines and bone marrow harvests. The only change to standard of care of a mobilization regimen that includes G-CSF is the addition of a dose of AMD3100 (plerixafor) on the evening prior to each day of apheresis. Efficacy outcomes include quantification of CD34+ cells in the apheresis product and assessment of successful polymorphonuclear leukocyte (PMN) and platelet (PLT) engraftment after transplantation. PK outcomes include analysis of repeated doses of plerixafor.
Study Details
Timeline
Interventions
Participants underwent mobilization with granulocyte colony-stimulating factor (G-CSF) 10 µg/kg/day for 4 days, administered by subcutaneous injection (SC) injection each morning. On the evening of Day 4, participants received a dose of plerixafor 240 µg/kg, administered by SC injection. On Day 5, participants returned to the clinic and received a morning dose of G-CSF 10 µg/kg and underwent apheresis approximately 10 to 11 hours after the dose of plerixafor (within 60 minutes after administration of G-CSF). Participants continued to receive an evening dose of plerixafor followed the next day by a morning dose of G-CSF and apheresis for up to a maximum of 7 aphereses or until ≥ 2\*10\^6 CD34+ cells/kg were collected.