A phase II study of carboplatin and vincristine in previously treated patients with small-cell lung cancer

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Abstract
A total of 28 previously treated patients with small-cell lung cancer were treated at relapse with 400 mg/m2 carboplatin and 2 mg vincristine on days 1 and 8, every 4 weeks. Ten partial responses (PRs) (37%) but no complete responses (CRs) were seen. Median survival after the start of second-line treatment was 120 days (range, 39–503 days). Toxicity of this regimen was moderate, including WHO grade 3/4 myelosuppression in 26% of courses (n=66). Eight PRs were seen in a subgroup of 22 patients who relapsed <3 months after firstline treatment. The responses seen in this group of patients may be due to the absence of cross-resistance between the regimens used.