PMID: 7524159Oct 1, 1994Paper

A phase I trial of 3-hour infusions of paclitaxel (Taxol) with or without granulocyte colony-stimulating factor

Seminars in Oncology
J H SchillerD Spriggs

Abstract

Paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ), a novel antitubulin agent derived from the bark of the Pacific yew tree, may be one of the most active single agents in our chemotherapy armamentarium. Concern over acute hypersensitivity reactions has resulted in an administration schedule consisting of a 24-hour infusion. We conducted a phase I trial of a 3-hour infusion of paclitaxel to determine whether a 3-hour infusion could be administered with relative safety, and to identify the maximal tolerated dose with and without granulocyte colony-stimulating factor (G-CSF) support. Thirty-five patients with advanced, untreatable malignancies received a 3-hour infusion of paclitaxel once every 3 weeks. Groups of three patients were entered at escalating dose levels in a traditional phase I design consisting of two parallel arms: arm A (without G-CSF) and arm B (with G-CSF). Dose levels of paclitaxel ranged from 210 mg/m2 to 300 mg/m2. Patients assigned to the G-CSF arm received 5 micrograms/kg/d subcutaneously starting on day 2. All patients were pretreated with dexamethasone, diphenhydramine, and ranitidine, and were monitored continuously for cardiac arrhythmias during the first treatment. The dose-limiting toxici...Continue Reading

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