Pilot study of cyclophosphamide plus carboplatin in advanced ovarian carcinoma

Six patients with histologically proven stage III-IV ovarian carcinoma received carboplatin (CBDCA) (150 mg/m2) plus cyclophosphamide (1000 mg/m2) monthly for 1 year unless disease progressed earlier. Six other patients received CBDCA (225 mg/m2) with the same cyclophosphamide dose monthly. Continued treatment with the higher CBDCA dose was not tolerable because of myelosuppression, but no other dose-limiting toxic effect was observed. Complete tumor regression was proven at secondary laparotomy in six of the 12 patients, and five of these remain disease-free from 26+ to 28+ months after beginning chemotherapy.