Long-term study of infliximab for @entity1569 in daily practice: drug survival depends on combined treatment, XXXX and infusion reactions.

@entity1 @entity1569 @entity28
BACKGROUND: Infiximab has been shown to be highly effective in phase III clinical trials, but limited information is available regarding drug survival and maintenance of efficacy beyond 1 year in real-life clinical setting. OBJECTIVES: To analyse the efficacy and safety of infliximab in a large number of @entity1 with a long follow-up and to identify clinical factors associated with long-term drug survival. METHODS: A retrospective review of @entity1 with moderate-to-severe @entity1569 treated with infliximab from March 2004 to August 2012 at a tertiary dermatology centre was carried out. RESULTS: In total, 63 treatment courses with infliximab were administered to 56 @entity1 . The mean duration of treatment was 31.6 months. The only significant positive predictor of drug survival was combination treatment [hazard ratio (HR) vs. monotherapy 2.90, 95% confidence interval (CI) 1.42   5.92]. Significant negative predictors of drug survival were @entity28 (HR 0.40, 95% CI 0.19   0.87) and infusion reactions (HR 0.40, 95% CI 0.19   0.87). Infusion reactions occurred in 13 (23%) of our @entity1 and were a reason for discontinuation of treatment in 5. CONCLUSIONS: This retrospective review of a cohort of @entity1 with moderate-to-severe @entity1569 treated with infliximab in daily practice shows that the PASI75 response rates at 24 and 52 weeks of treatment are similar to those of the pivotal studies, but 37 courses of treatment (59%) had to be discontinued after a median of 12 months. The major cause for discontinuation was loss of response, in 18 cases. Combination treatment, @entity28 and infusion reactions were found to be predictors of drug survival.
