Leukemia Research Reports · Published 2026-01-01 · DOI 10.1016/j.lrr.2026.100566
Introduction: A combination of Gemcitabine, Dexamethasone and Cisplatin (GDP) with or without rituximab (±R) is an outpatient treatment widely used for relapsed or refractory (R/R) lymphoma. Limited data are available on stem cell mobilization following GDP treatment. Method: A retrospective multicenter study was conducted from January 1st, 2014, to December 31st, 2020. Patients received GDP±R before autologous stem cell transplantation (ASCT) and were mobilized with either GDP±R or intermediate-dose cyclophosphamide (ID-CY). The primary objective was to determine the percentage of patients achieving ≥2 × 106 CD34+/kg, median CD34+ yield, and number of apheresis days. The secondary objective compared these results with ID-CY. Results: Ninety-two patients (median age 54) were treated for diffuse large B-cell (40%), Hodgkin (36%), or follicular lymphoma (16%). Of these, 83 were mobilized with GDP±R and 9 with ID-CY. G-CSF was administered at 5 mcg/kg (61%) or 10 mcg/kg (37%) daily, typically starting on day 9, after two GDP cycles. A successful stem cell collection at the first attempt occurred in 96% of GDP±R patients, and 94% of patients proceeded to ASCT. No significant difference was found between GDP±R and ID-CY in terms of successful collection (96% vs. 100%, p=NS), but fewer hospitalizations occurred within 21 days of mobilization (1% vs. 22%, p = 0.02). Conclusion: This study demonstrated the feasibility of performing a peripheral blood stem cell mobilization at day 15 following GDP±R. It is highly effective and represents a better option due to its simplicity of administration, low rate of hospitalization and low cost.
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