Aranoza and dacarbazine (DTIC) monotherapy and in combinations with aranoza and interferon-alpha (IPHN-alpha) as well as DTIC and IPHN-alpha was given to 175 patients (89 males and 86 females, aged 23-78) with disseminated skin melanoma. The effectiveness of aranoza and DTIC monotherapy was practically identical. Total response to DTIC used in combination with IPHN-alpha increased insignificantly: 25.6%--in combination vs. 19.5% DTIC alone (p > 0.05). IPHN-alpha was most effective when used with aranoza (total objective response--31.7% vs. aranoza alone--16%). The best results were reported in cases heretofore untreated with cytostatic drugs. Total response (complete or partial remission) was recorded in 63% vs. 4.5% (p < 0.05) of patients who had received chemotherapy. In cases of aranoza+ IPHN-alpha treatment, complete and partial remission was reported in metastasis of the skin, subcutaneous fat, peripheral, retroperitoneal and abdominal (mesenteric) lymph nodes and lungs. There was no relapse of metastasis of the liver, intestinal tract, bones, breast or ovary.