• N Kröger, H Renges, S Sonnenberg, W Krüger, K Gutensohn, T Dielschneider, L Cortes-Dericks, and A R Zander.
• Department of Bone Marrow Transplantation, University of Hamburg, Germany.
• Bone Marrow Transplant. 2002 May 1; 29 (9): 727-30.

AbstractWe compared two doses of recombinant human granulocyte-stimulating factor (G-CSF) for stem cell mobilisation in 90 healthy donors for allogeneic stem cell transplantation in a retrospective analysis. Group I (n = 46) received 10 microg/kg G-CSF (filgrastim) given as 5 microg/kg twice daily, and group II (n = 44) received 16 microg/kg, given as 8 microg/kg twice daily with a 12-h interval. The groups were well-balanced for age and body-weight. G-CSF application was performed on an out-patient basis, and leukapheresis was started in all donors on day 5. The most frequent side-effects of G-CSF were grade I/II, bone pain, headache and fatigue in both groups, whereas grade III of bone pain, headache and fatigue occurred in the 2 x 8 microg/kg group only. One serious non-fatal event with non-traumatic spleen rupture occurred in the 2 x 5 microg/kg group. The CD34(+)cell count in the first apheresis of all donors was 5.1 x 10(6)/kg donor weight (range, 1.5-19.3). The CD34(+) cell harvest was higher in the 2 x 8 microg/kg group than in the 2 x 5 microg/kg group (7.1 x 10(6)/kg vs 4.9 x 10(6)/kg; P = 0.09). The target of collecting >5.0 x 10(6) CD34(+) cells/kg donor weight with one apheresis procedure was achieved in 45% of group I and in 61% of group II, respectively. Administering G-CSF at a dosage of 8 microg/kg twice daily leads to a higher CD34(+) cell yield than a dosage of 2 x 5 microg/kg, but is associated with increased toxicity and higher cost.

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