ABSTRACT
Background: High dose Cyclophosphamide [Cy] and Vinorelbine Cyclophosphamide [Vino-Cy] are stem cell [SC] mobilisation options for patients with multiple myeloma [MM]. We present a comparison of mobilisation outcomes using these regimens
Patients and methods: Vino-Cy patients received Vinorelbine 25 mg/m[2] on day 1, cyclophosphamide 1500 mg/m[2] on day 2, and pegylated GCSF on day 4 or GCSF 10 mcg/kg/day from day 4 onwards. Cy patients were given cyclophosphamide 4000 mg/m[2] on day 1 and GCSF10 mcg/kg/day from day 5 onwards. The target CD34 + SC collection was 5 * 10[6] per kg/BW
Results: 149 patients were included. SC collection was lower in the Vino-Cy group [8.20 * 10[6]/ Kg BW] compared to the Cy group [11.43 * 10[6]/Kg BW], with adjusted geometric mean ratio of 0.59 [95% CI 0.41 to 0.86, p = 0.006]. Time taken to achieve an adequate PB SC count was shorter for Vino-Cy [9 +/- 1 day compared to 12 +/- 2 days for Cy, adjusted absolute mean difference -3.95, 95% CI -4.85 to -3.06, P < .001]. Mobilisation related toxicities [in particular, neutropaenic fever] were greater for Cy
Conclusion: Vino-Cy is a potential alternative to Cy given the need for effective mobilisation protocols with acceptable toxicity