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Abstract
A phase II trial of natural human fibroblast interferon (HuIFN-beta) in 15 previously untreated patients with advanced metastatic malignant melanoma is reported. It was given as out-patient treatment by 30 min i.v. infusion of 60106 U/m2/day on 4 consecutive days each week. Systemic toxicity was acceptable to all patients except one who declined further treatment. Performance status of treated patients was good. Three patients had a partial response and 3 patients had stable disease. The median time to response was 13.3 weeks and the duration of response was 22.6 weeks. Responses were seen in lungs and soft tissues only and relapses were seen particularly in the central nervous system and the liver. Overall survival of the patients was only 20.7 weeks. Those who achieved a partial remission had a median survival of 34.7 weeks and those with disease stabilisation a survival of 22.0 weeks. HuIFN-beta is shown to have anti-tumour activity in advanced metastatic melanoma, although the unit dose of HuIFN-beta is much larger than that required to achieve similar anti-tumour activity with interferon-alpha.
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