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  • Title: Prospective randomized clinical trial comparing high-dose ifosfamide + GM-CSF vs high-dose cyclophosphamide + GM-CSF for blood progenitor cell mobilization.
    Author: Vela-Ojeda J, Tripp-Villanueva F, Montiel-Cervantes L, Sánchez-Cortés E, Ayala-Sánchez M, Guevara-Moreno ME, García-León LD, Rosas-Cabral A, Esparza MA, González-Llaven J.
    Journal: Bone Marrow Transplant; 2000 Jun; 25(11):1141-6. PubMed ID: 10849526.
    Abstract:
    Between August 1994 and June 1999, 56 patients were prospectively randomized to receive ifosfamide 10 g/m2 + GM-CSF 5 microg/kg/day (IFO+GM-CSF n = 28) and cyclophosphamide 4 g/m2 + GM-CSF 5 microg/kg/day (CY+GM-CSF n = 28). Both groups were comparable for age, gender, diagnosis, disease stage and previous chemotherapy. The IFO+GM-CSF group demonstrated a shorter median interval between therapy and apheresis (10 days (8-14) vs 13 days (8-25) P = 0.002), median number of doses of GM-CSF (9 (7-13) vs 15 (9-31) P = 0.001), median of days with aplasia (0.5 (0-10) vs 6 (0-21) P = 0.001), median days with fever (0 (0-6) vs 3 (0-9) P = 0.006) and median of days using i.v. antibiotics (0 (0-11) vs 7.5 (0-19) P = 0.002). The median MNC yield was similar in both groups. The CD34+ cell yield was better in the CY+GM-CSF group (3.14 (0.9-11.8) vs 5.33 (0. 08-32)) but not at significant levels (P = 0.1). White blood cell hematopoietic recovery was more rapid in the CY+GM-CSF group (16 (10-22) vs 13 (10-24) P = 0.02). Platelet engraftment was similar in both groups. Costs of mobilization and transplantation were almost the same: $28 570 ($18 527-$47 028) and $30 020 ($17 281-$67 591), respectively (P = 0.9). There were no differences in disease-free survival and overall survival between both groups. Mild and transient non-hematological toxicity (hemorrhagic cystitis, decrease in serum creatinine clearance and CNS dysfunction) was seen most frequently in the IFO+GM-CSF group.
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