Abstract
The aim of this phase I study was to determine the maximum tolerated dose (MTD) and to evaluate the toxicity of the biweekly paclitaxel and carboplatin combination chemotherapy in frail patients with advanced non-small cell lung cancer (NSCLC). Seventeen unresectable and previously untreated NSCLC patients participated in this study. Frail patients (>80 years old with PS 0-1 and adequate organ functions, or <80 years old with PS 2 or <80 with PS 0-1 and one inadequate organ function of bone marrow, liver, or kidney) of NSCLC were enrolled in this study. Both paclitaxel and carboplatin were administered on day 1 and repeated biweekly. The starting dose of paclitaxel 120 mg/m2 and carboplatin was AUC 3 /d on day 1 every 2 weeks for 4 to 8 cycles. Seventeen frail patients received a total of 1 to 10 cycles. The major hematologic toxicity was neutropenia. Nonhematologic toxicities, including numbness and constipation, were generally mild and reversible. The MTD of paclitaxel were determined as 140 mg/m2. The recommended phase II study dose of paclitaxel was determined as 120 mg/m2 with area under the curve 3 biweekly for 1 day. An objective response was observed in 8 of 17 patients (47%) with frail patients. The combination chemotherapy of biweekly paclitaxel and carboplatin appears to be tolerable and sufficiently effective in frail patients with NSCLC. A phase II trial is underway.
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