Key clinical point: Fecal microbiota transplantation (FMT) was safe but appeared inferior to sham in reducing disease activity in patients with active peripheral psoriatic arthritis (PsA) concomitantly treated with methotrexate.
Major finding: At 6 months, the treatment failure rate was significantly higher in FMT vs. sham group (60% vs. 19%; P = .018). Improvement in Health Assessment Questionnaire Disability Index favored sham vs. FMT by 0.23 points ( P = .031) while the proportion of American College of Rheumatology 20 respondents was similar (between-group difference, 0.93; 95% confidence interval, 0.45-1.94). No serious adverse events or deaths were observed.
Study details: The findings are from a 26-week, double-blind, superiority trial of 31 participants with active peripheral PsA despite ongoing treatment with methotrexate who were randomly allocated to either gastroscopic-guided FMT (n=15) or sham transplantation (n=16) into the duodenum.
Disclosures: This study was supported by the Danish Rheumatism Association, Danish Psoriasis Research Foundation, Novartis Healthcare, and others. V Andersen and R Christensen declared receiving personal fees and grants/honoraria from Merck, Janssen, and other sources.
Source: Kragsnaes MS et al. Ann Rheum Dis. 2021 Apr 29. doi: 10.1136/annrheumdis-2020-219511 .