Phase II trial of recombinant leukocyte A interferon in advanced malignant melanoma

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Abstract
A total of 21 patients with advanced metastatic malignant melanoma were treated in this efficacy study of recombinant leukocyte A interferon (interferon alfa-2a). Patients received 18x106 units interferon alfa-2a by i.m. injection daily for the first 10 weeks and then three times weekly for a further 4 months. The symptoms of toxicity observed in this study resembled those previously reported for alfa interferons and included fever, chills, fatigue, anorexia, myalgia, headache, occasional nausea and vomiting, dose-dependent reversible leukopenia, and hepatic transaminase elevations. Of the 21 patients, 12 had evidence of tumor progression, 6 had stable disease for at least 2 months, and complete remission was seen in 3 patients with stage III melanoma. We conclude that interferon alfa-2a appears to have some antiproliferative effect in metastatic malignant melanoma. While its use in stage IV patients with big tumor masses is doubtful, there seems to be therapeutic benefit in earlier stages.