A phase I-II study with intraperitoneal cisplatin plus systemic etoposide in patients with minimal residual ovarian cancer.
In patients with residual ovarian cancer after standard platinum-based induction, dose intensification was achieved by intraperitoneal administration of cisplatin 90 mg/m2 with intravenous Na thiosulphate and increasing dosages of etoposide. 40 patients entered the study, 4 on 200 mg/m2, 6 on 400 mg/m2, 22 on 600 mg/m2 and 8 on 800 mg/m2 etoposide. The optimal dose for etoposide was 600 mg/m2. 29 patients on the two highest dose steps were evaluable for response. 14 patients reached a complete remission, which was surgically confirmed in 6. All these patients initially had tumour residuals smaller than 1 cm. 3 patients had a partial response, 4 had stable disease and 8 progressed. At a maximal follow-up of 2 years (median 12 months), median time to progression was 12 months and median overall survival was 14 months. Of the 14 patients with complete remission, 2 relapsed at 9 and 11 months. Apart from a rash, in 4 of 22 patients at 600 mg/m2 and in 5 of 8 at 800 mg/m2 etoposide, the main toxicity was leukopenia grade 3-4 in 58% of cycles on 600 and in 76% at 800 mg/m2 etoposide. Leukopenic fever, however, occurred only three times; thrombocytopenia was rare. Cycles had to be delayed sporadically and the etoposide dose was reduced in 9% of all cycles at 600 and in 11% at 800 mg/m2. Intraperitoneal instillation of cisplatin gave no peritoneal symptoms. Intraperitoneal cisplatin with intravenous etoposide was tolerable and effective for patients with small tumour residuals after induction for stage III ovarian cancer.
Willemse
P H
PH
Department of Internal Medicine, University Hospital, EZ Groningen, The Netherlands.
Sleijfer
D T
DT
de Vries
E G
EG
Boonstra
H
H
Bouma
J
J
Mulder
N H
NH
D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D002945:Cisplatin / Q000008:administration & dosage / Q000009:adverse effects; D004341:Drug Evaluation; D005047:Etoposide / Q000008:administration & dosage / Q000009:adverse effects; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral; D007275:Injections, Intravenous; D007970:Leukopenia / Q000139:chemically induced; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000188:drug therapy*
D005047:Etoposide; D002945:Cisplatin