High doses of interferon alfa are used to treat Kaposi's sarcoma in patients with immunodeficiency, whereas low doses are generally ineffective. Following low-dose recombinant interferon alfa treatment for lymphoma, two patients showed a regression of their hematologic malignancy-associated Kaposi's sarcoma. This observation prompted us also to try lowdose interferon alfa treatment in uncomplicated classic Kaposi's sarcoma, and two additional patients were thus treated on an outpatient basis.
Initial response was noted after 3 to 13 weeks of treatment. Remission was achieved after 4 to 6 months of low-dose interferon alfa treatment and its duration was 8 to 14 months. Recurrences were treated again and additional remissions were obtained after only 5 to 8 weeks of treatment.
Low-dose interferon alfa treatment may represent an effective therapeutic modality for the treatment of patients with both lymphoma-associated and uncomplicated classic Kaposi's sarcoma.(Arch Dermatol. 1993;129:1297-1300)
Tur E, Brenner S, Michalevicz R. Low Dose Recombinant Interferon Alfa Treatment for Classic Kaposi's Sarcoma. Arch Dermatol. 1993;129(10):1297–1300. doi:10.1001/archderm.1993.01680310067011
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