Cisplatin, vinblastine, and bleomycin as second-trial therapy in ovarian carcinoma. A pilot study of the Gynecologic Oncology Group.

Ten patients with ovarian carcinoma whose tumors had progressed on first-trial chemotherapy were treated with cisplatin, vinblastine, and bleomycin (PVB) to determine the efficacy, dose range, and toxicity of this combination. Two dose levels of vinblastine were used. Objective responses occurred in 5/10 patients (3 CR, 2 PR), with a median response duration of 17.0 weeks. Toxicity was appreciable. One patient expired of bleomycin-induced pulmonary fibrosis. With the higher dose of vinblastine, four patients had grade III and three patients had grade IV hematologic toxicity. At the lower dose, two patients had grade II and one patient had grade III hematologic toxicity. PVB has activity in second-trial therapy of ovarian carcinoma at the dose and schedule tested, but the role of this regimen in the future treatment of this disease remains to be determined.