Development of Leprosy and Type 1 Leprosy Reactions after Treatment with Infliximab: A Report of 2 Cases

Abstract
Humanized monoclonal antibodies to tumor necrosis factor–α are valuable for the treatment of rheumatologic conditions, but they have been associated with the development of serious infections. We report the first 2 cases of leprosy developing after treatment with infliximab. After discontinuation of infliximab, both patients developed type 1 (“reversal”) leprosy reactions.