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[The intraperitoneal installation of gamma interferon for the treatment of refractory ovarian carcinoma].

Patients with refractory ovarian cancer were treated intra-peritoneally with interferon-gamma. The maximum tolerated dose was achieved at 2 mg/m2. The substance was administered 3 times per week every second week. Interferon-gamma treatment activated locally the macrophages and induced a rise in neopterin urine, serum, and ascites levels. The tumor marker CA-125 showed marked fluctuations of more than 100% during interferon treatment and this was not correlated with neopterin. A flu-like syndrome and especially fatigue were the dose limiting side effects. Two of 3 evaluable patients died on tumor progression whereas one is now 18 months clinically free of disease.