Etoposide (VP-16) and cisplatin: an effective treatment for relapse in small-cell lung cancer.
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abstract
Seventy-eight patients with evaluable small-cell lung cancer (SCLC) were treated with etoposide (VP-16) and cisplatin after their disease failed to respond to, or relapsed after, induction combination chemotherapy, consisting primarily of cyclophosphamide, doxorubicin (Adriamycin), and vincristine (CAV). Twenty-four patients had limited disease (LD) and 54 had extensive disease (ED). In six (8%) patients, a complete response (CR) was achieved and in 37 (47%), there was a partial response (PR). The median duration of response for responding patients was 22 weeks (range, 4 to 50 weeks) for patients with LD and 18 weeks (range, 4 to 49 weeks) for those with ED. Twelve percent of patients demonstrated stable disease, and 33% of patients had progressive disease on treatment. The median survival times of LD patients achieving a CR or PR were 59 and 34 weeks, respectively, whereas the comparable figures for ED patients were 45 and 23 weeks, respectively. Gastrointestinal toxicity was mild, but myelosuppression, predominantly leukopenia and thrombocytopenia, was common. Mild to moderate nephrotoxicity occurred in 11 patients, but was reversible in all cases. Two febrile episodes occurred during periods of drug-induced neutropenia, but no other significant toxicities were identified. These results provide further evidence that VP-16 and cisplatin is an effective and tolerable combination chemotherapy regimen for SCLC resistant to CAV.
