Paclitaxel by 96-hour continuous infusion in combination with cisplatin: a phase I trial in patients with advanced lung cancer.
PURPOSE: To determine the maximum-tolerated dose (MTD) of paclitaxel administered by 96-hour continuous infusion in combination with cisplatin, to determine if the addition of granulocyte colony-stimulating factor (G-CSF) permits significant paclitaxel dose escalation, and to assess the toxicity and preliminary activity of this combination in patients with advanced lung cancer. PATIENTS AND METHODS: Fifty patients with untreated lung cancer were enrolled: 42 had advanced non-small-cell lung cancer (NSCLC) and eight had extensive-stage small-cell lung cancer (SCLC). Patients received paclitaxel doses of 100 to 180 mg/m2/96 hours and cisplatin doses of 60 to 80 mg/m2 as a single 30-minute bolus injection at the end of the paclitaxel infusion. RESULTS: Two of six patients experienced dose-limiting neutropenia at a dose of paclitaxel 140 mg/m2/96 hours and cisplatin 80 mg/m2. With G-CSF support, one of three patients experienced both dose-limiting mucositis and fatal neutropenic sepsis at a dose of paclitaxel 180 mg/m2/96 hours and cisplatin 80 mg/m2. Significant peripheral neuropathy developed in five patients and occurred after six or more cycles of therapy. Thirty-three of 42 patients with NSCLC had measurable disease; the objective response rate was 55%, with two complete responses and 16 partial responses. For all 42 patients with NSCLC, the median time to progression and median survival duration were 5 months and 10 months, respectively. The actuarial 1-year survival rate was 41%. Of eight SCLC patients, four responded to therapy, and the median survival duration for all SCLC patients was 11 months. CONCLUSION: The MTD without G-CSF is paclitaxel 120 mg/m2/96 hours and cisplatin 80 mg/m2, and the MTD with G-CSF is paclitaxel 160 mg/m2/96 hours and cisplatin 80 mg/m2. Infusional paclitaxel with cisplatin is well tolerated and active in patients with advanced NSCLC.
Georgiadis, MS; Schuler, BS; Brown, JE; Kieffer, LV; Steinberg, SM; Wilson, WH; Takimoto, CH; Kelley, MJ; Johnson, BE
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