Daily times four vinorelbine plus cisplatin in advanced non-small-cell lung cancer: A phase II trial of a novel schedule

Purpose: To evaluate the efficacy of a novel multiday schedule of vinorelbi ne and cisplatin in patients with advanced NSCLC. Patients and methods: Thirty patients were enrolled, including 27 patients with stage IV disease, and 11 patients with performance status of 2. They r eceived a maximum of four chemotherapy cycles with cisplatin 20 mg/m(2)/day and vinorelbine 15 mg/m(2)/day intravenously (i.v.) for four consecutive d ays, every three weeks, with prophylactic filgrastim. Results: Sixteen patients responded (53%, 95% confidence interval (95% CI): 34%-72%), including two complete and fourteen partial confirmed responses. Median survival for all patients was 8.1 months, with actuarial one-year a nd two-year survival rates of 40% and 15%. Despite prophylactic filgrastim, the delivered vinorelbine dose intensity of 16.8 mg/m(2)/week caused febri le neutropenia in 48% of patients (16% of cycles), resulting in one treatme nt-related death. Common nonhematologic toxicities included delayed emesis, asthenia, and constipation. Conclusions: This multiday vinorelbine-cisplatin schedule is highly active against advanced NSCLC but results in frequent neutropenic complications. T he myelotoxicity and antitumor efficacy of vinorelbine in NSCLC patients ma y be schedule-dependent.