Adriamycin, cyclophosphamide, and etoposide (VP-16–213) in extensive-stage small cell lung cancer

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Abstract
A three-drug regimen composed of adriamycin, 50 mg/m2 and cyclophosphamide, 500 mg/m2 administered on day 1; and VP-16–213, 50 mg/m2 days 1–5, with courses repeated at 3-week intervals, was studied in 24 consecutive patients with extensive-stage small cell lung cancer (SCLC). Twelve of 33 patients (36%) evaluable for toxicity developed life-threatening marrow suppression and 12% died of septicemia following the first course of treatment. Eleven of 24 patients (46%) with extensive disease achieved an objective response and only one was classified as a complete response. Survival was related to performance status and metastatic site but was not influenced by tumor response. The present study is distinctive from that of previous reports of the same or similar three-drug regimen in that the response rate is lower and toxicity is substantial. Nonetheless, survival as measured by median duration (7.9 months) and proportion alive at 1 year (35%) is comparable to that of previous reports.