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Granulocyte Colony-Stimulating Factor as an Adjunct to Induction Chemotherapy for Adult Acute Lymphoblastic Leukemia  A Randomized Phase-III Study
Klaus Geissler,
Elisabeth Koller,
Eva Hubmann,
Dietger Niederwieser,
Wolfgang Hinterberger,
Dietmar Geissler,
Paul Kyrle,
Paul Knöbl,
Ingrid Pabinger,
Renate Thalhammer,
Ilse Schwarzinger,
Christine Mannhalter,
Ulrich Jaeger,
Renate Heinz,
Werner Linkesch, and
Klaus Lechner
From the Division of Hematology, 1st Medical Department and Department of Laboratory Medicine, University of Vienna, Vienna, Austria; Hanuschkrankenhaus, Vienna, Vienna, Austria; Division of Hematology, Medical Department, University of Graz, Graz, Austria; Medical Department, University of Innsbruck, Innsbruck, Austria; Donauspital, Vienna, Vienna, Austria; and Landeskrankenhaus Klagenfurt, Klagenfurt, Austria.
Because of the recommendation to avoid the concomitant administration of growth factors and chemotherapy, there is only limited information on colony-stimulating factor (CSF ) therapy in acute lymphoblastic leukemia (ALL) induction protocols, in which cytotoxic drugs are administered in divided doses over a prolonged period of time, thus requiring a simultaneous administration of growth factors and chemotherapy. We conducted a prospective, randomized, controlled study to determine the safety and efficacy of granulocyte colony-stimulating factor (G-CSF; filgrastim) as an adjunct to phase I of induction chemotherapy for adult ALL. Patients (n = 53) were randomized to receive no growth factor or G-CSF (5 µg/kg/d subcutaneously) starting on day 2 of chemotherapy consisting of daunorubicin (45 mg/m2) and vincristine (1.5 mg/m2) on days 1, 8, 15, and 22; L-asparaginase (2500 U/m2) on days 1 through 14; and prednisone (60 mg/m2) on days 1 through 28. A total of 25 patients in the G-CSF group and 26 patients in the control arm fulfilled the inclusion criteria of the study. G-CSF markedly ameliorated neutropenia because the median proportion of days with neutropenia less than 1,000/µL was 29% in the G-CSF group as compared with 84% in the control arm (P < .00005). The median time to reach absolute neutrophil counts (ANC)  1,000/µL was 16 days in G-CSF patients and 26 days in controls (P < .001). More importantly, G-CSF significantly reduced the incidence of febrile neutropenia (12% v 42% in controls, P < .05) and documented infections (40% v 77%, P < .05). No significant differences were found with regard to requirements for red blood cell transfusions and platelet concentrates. A total of 24 of 25 (96%) patients in the G-CSF group and 20 of 25 (80%) evaluable control patients had complete remission after phase I of induction therapy. We conclude that G-CSF can be safely administered as an adjunct to induction therapy of ALL and is clinically beneficial by ameliorating neutropenia and reducing infectious complications.
Blood, Vol. 90 No. 2 (July 15), 1997:
pp. 590-596
© 1997 by The American Society of Hematology.
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