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  • Title: Equivalent mobilization and collection of granulocytes for transfusion after administration of glycosylated G-CSF (3 microg/kg) plus dexamethasone versus glycosylated G-CSF (12 microg/kg) alone.
    Author: Heuft HG, Goudeva L, Sel S, Blasczyk R.
    Journal: Transfusion; 2002 Jul; 42(7):928-34. PubMed ID: 12375667.
    Abstract:
    BACKGROUND: The aim of this study was to find a regimen for mobilization and collection of granulocytes that combines low-dose G-CSF administration with satisfactory PMN mobilization and apheresis at a low rate of donor adverse reactions. STUDY DESIGN AND METHODS: In a prospective study, 52 healthy unrelated volunteers received a single subcutaneous injection of glycosylated G-CSF (Lenograstim Chugai-Pharma, Frankfurt, Germany) at medians of 3.1 (range, 2.4-3.6) microg per kg plus dexamethasone (8 mg orally; n = 29) or at 11.8 (7.1-18.5) microg of lenograstim per kg (p < or = 0.0001) without dexamethasone (n = 23) and underwent standard apheresis using the PMN program of a cell separator (Spectra, COBE [now Gambro] BCT). WBC and PMN mobilization results and apheresis yields were compared and the severity and clinical significance of donor adverse reactions was evaluated. RESULTS: For the low-dose G-CSF plus dexamethasone versus the high-dose G-CSF alone group, similar mobilization results were observed for WBCs with 31.3 (19.1-44.9) x 10(9) per L versus 27.5 (19.2-44.0) x 10(9) per L (p = 0.21, NS) and PMNs with 29.0 (17.6-42.2) x 10(9) per L versus 25.2 (16.2-39.0) x 10(9) per L (p = 0.08, NS). The PMN apheresis yields were equal with 70 (39-139) x 10(9) per unit with low-dose G-CSF versus 68 (33-120) x 10(9) per unit in the high-dose G-CSF group (p = 0.83, NS). Regarding donor adverse reactions, 7 out of 29 (24%) and 8 out of 23 donors (35%) reported moderate or severe symptoms. The character of these reactions was different; symptoms of greater clinical significance and a higher need for analgesics were observed in the high-dose G-CSF group. CONCLUSIONS: A Lenograstim dose of 3 microg per kg plus DXM assures effective PMN mobilization and acceptable apheresis components. The combination of glycosylated G-CSF with DXM allows a significant dose reduction in G-CSF for PMN mobilization and collection as compared with higher G-CSF doses alone. In the high-dose G-CSF mobilization group, adverse reactions were more severe and required more analgesics.
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