[Sarcoïdosis and anti-TNF: a paradoxical class effect? Analysis of the French Pharmacovigilance system database and literature review]

To identify and characterize the observations of sarcoidosis occurring during anti-TNF blockade collected in the French Pharmacovigilance system database and reported in the literature.Seven cases were reported in the French Pharmacovigilance system database and 39 cases (37 original) have been reported internationally. Monoclonal antibodies (infliximab and adalimumab) and fusion protein (etanercept) are equally involved. Sarcoidosis have been confirmed histologically and occurred predominantly in the rheumatoid arthritis (22) and spondylarthropathy (16).The lack of protopathic bias suggests that these paradoxical sarcoidosis occurring during treatment with anti-TNF are a class-effect, as with psoriasis, uveitis, and IBD reported under similar conditions. Their pathogenesis remains unclear.