Twenty-four patients who had stage III or IV ovarian adenocarcinoma and had failed prior chemotherapy were treated with cyclophosphamide, adriamycin, and cis-dichlorodiammineplatinum(II) every 3 weeks. Twelve patients had objective responses and an additional six had subjective improvement. The median duration of survival for responders is 9 months. There were no instances of nephrotoxicity. Fluid management consisted of 1000-2000 ml of iv fluid without Lasix- or mannitol-induced diuresis. Patients responded after having failed radiotherapy or multiple-drug chemotherapy, including some who were 70-75 years of age or were greater than 50% bedridden. Patients with one- or two-drug prior chemotherapy had a higher response rate (ten responses among 17 patients) than those previously treated with three or more drugs (two responses among seven patients).