ESSENTIAL RESEARCH
Sexually transmitted diseases.1998 Aug 4.
A randomized phase II study comparing four different interferon therapies in patients with recalcitrant condylomata acuminata.
Background
Interferon (IFN) alpha and IFN gamma have synergistic in vitro and in vivo effects and have each been used in the treatment of anogenital condylomata acuminata.
Objective
To compare the efficacy and safety of regional 3 x 10(6) U IFN alpha (Group A), 3 x 10(6) U IFN gamma (Group B), 1.5 x 10(6) U IFN alpha plus 1.5 x 10(6) U IFN gamma (Group C), and 3 x 10(6) U IFN alpha plus 1.5 x 10(6) U IFN gamma (Group D) in the treatment of recalcitrant anogenital condylomata acuminata.
Methods
Six-week courses of regional IFNs were administered in a randomized, double-blind, multicenter study. Response was assessed as change in the total area affected by condylomata.
Results
The treatments of Groups A, B, and C were similarly effective (complete response in 13.6%, 18.5%, and 16.0%, respectively). Group D had the lowest rate of complete response (3.8%), but this combination was the most effective when partial and complete responses were combined (73.0%).
Conclusions
Regional IFN is a moderately effective and safe treatment in patients with recalcitrant anogenital condylomata acuminata. Combinations of IFNs alpha and gamma were not superior to IFN monotherapy.
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