• Seminars in oncology · Oct 1994

    Clinical Trial Controlled Clinical Trial

    High-dose ifosfamide/carboplatin/etoposide: maximum tolerable doses, toxicities, and hematopoietic recovery after autologous stem cell reinfusion.

    • K K Fields, G J Elfenbein, J B Perkins, W E Janssen, O F Ballester, J W Hiemenz, P E Zorsky, L E Kronish, and M C Foody.
    • Department of Internal Medicine, University of South Florida, Tampa.
    • Semin. Oncol. 1994 Oct 1; 21 (5 Suppl 12): 86-92.

    AbstractWe treated 115 patients in a phase I/II dose-escalation study of ifosfamide/carboplatin/etoposide (ICE) followed by autologous stem cell rescue. Patients treated had a variety of diagnoses, including breast cancer (high-risk stage II disease with eight or more positive nodes, stage III disease, and responsive metastatic disease), non-Hodgkin's lymphoma, Hodgkin's disease, acute leukemia in first remission, and various solid tumors that were responsive to induction therapy. Patients received autologous bone marrow stem cells or peripheral blood stem cells primed by one of several methods. The maximum tolerated dose of ICE was determined to be ifosfamide 20,100 mg/m2, carboplatin 1,800 mg/m2, and etoposide 3,000 mg/m2 when administered as a 6-day regimen. The dose-limiting toxicities included acute renal failure, severe central nervous system toxicity, and "leaky capillary syndrome" with hypoalbuminemia, profound fluid overload, and pulmonary insufficiency. Analysis of hematologic recovery based on stem cell source and influence of hematopoietic growth factor administration was undertaken. Hematopoietic growth factor use significantly reduced neutrophil engraftment time for patients receiving bone marrow stem cells, with evidence of earlier recovery times for patients receiving granulocyte colony-stimulating factor compared with granulocyte-macrophage colony-stimulating factor. Neutrophil recovery times varied based on the source of stem cells used, with the earliest engraftment times seen for patients receiving peripheral blood stem cells primed with cyclophosphamide and granulocyte colony-stimulating factor. Platelet recovery times were not statistically different for any of the subsets. In conclusion, the maximum tolerated dose of ICE has been defined, and the source of stem cells and the use of hematopoietic growth factors influence hematopoietic recovery.

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