Abstract
The purpose of this study is to evaluate the feasibility of early use of modified PAC-1 chemotherapy following debulking surgery and its efficacy by assessing disease status during a second-look operation. Twenty-six consecutive previously untreated patients with stage III ovarian carcinoma were evaluated in a prospective study over the 5-year period March 1981 to August 1986. Initial exploratory laparotomy was performed for staging and maximum cytoreduction. Within 24 hr postoperative modified PAC-1 (MPAC-1) combination chemotherapy was administered and then repeated every 4 weeks for 11 months which was then followed by second-look operation. Patients were analyzed according to the following pretreatment characteristics: age, FIGO stage, histologic tumor type, extent of initial surgery, size of residual tumor, and findings during second-look. Nineteen patients were evaluable. No evidence of either microscopic or macroscopic disease was noted in 15 patients (79%), whereas the remaining 4 (21%) exhibited persistent disease. Of the remaining 7 patients not undergoing SLO, 4 completed 12 courses of chemotherapy but did not undergo surgery for medical reason ( n = 2) or patient refusal ( n = 2). Two more patients refused chemotherapy after 9 courses and the seventh patient expired with persistent disease after 8 courses. The early use of combination chemotherapy was well tolerated. Neurological, hematological, and renal toxicity was never severe enough to cause discontinuation of therapy.
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