Prospective Multicentre Study on Ophthalmological Adverse Events of Tralokinumab in the Treatment of Atopic Dermatitis

Atopic dermatitis (AD) is a skin disease characterised by xerosis, pruritus and erythematous plaques. It is common in children (10 to 20%) with an increasing prevalence (multiplied by 2 in 20 years) and begins to develop at 3 months of age. Half of all atopic dermatitis cases disappear by the age of 5, but 10 to 15% of cases persist into adulthood (i.e. about 3.5% of the French adult population). Conventional treatments consist of emollient creams, topical corticosteroid, topical immunomodulators (topical calcineurin inhibitor: tacrolimus) or systemic cyclosporine. However, a proportion of patients (10%) do not respond sufficiently to this therapeutic arsenal. Recent therapies using monoclonal antibodies (biotherapies) are available (DUPILUMAB -anti Interleukin-4 (IL4) antibody and soon TRALOKINUMAB-anti Interleukin-L13 (IL13) antibody). Conjunctivitis is an adverse event reported in patients treated with dupilumab and tralokinumab in clinical trials. Given that baseline ophthalmic comorbidities affect approximately 20% of AD patients, it is crucial to include an evaluation in future prospective real-life longitudinal studies to assess the true incidence of biologic-induced ophthalmic adverse events. No such study is currently available for Tralokinumab. The French group GREAT (GROUPE DE RECHERCHE SUR L'ECZEMA ATOPIQUE) has recently conducted a study on ocular adverse events of dupilumab (DUPI-ŒIL study, I. COSTEDOAT, M. WALLAERT et al, submitted) which included 180 patients followed for at least 4 months. The results show that the majority of dupilumab-induced conjunctivitis is de novo (frequency 18%). Conjunctivitis-type adverse events were also reported at a frequency of 3.0% to 11.0% in the ECZTRA pivotal studies with Tralokinumab. However, the ophthalmological impact of IL13 inhibition remains partially unknown. Further characterisation of ophthalmological adverse events in patients treated with Tralokinumab in real life is needed to provide information for future recommendations (including prioritisation of indications for systemic therapy) and to improve compliance. The primary objective of the TRALO-OEIL study is to determine the frequency of occurrence of ophthalmologic adverse events with TRALOKINUMAB.