The British Association of Dermatologists Biologics and Immunomodulators Register: a centenary celebration of research collaboration in British dermatology

Characteristics of 'super responders' and 'super nonresponders' to first biologic monotherapy for psoriasis: a nested case-control study

It is unknown why some patients with psoriasis experience long-term effectiveness with their first biologic monotherapy. Our aim was to compare the baseline demographic, disease, genotypic, clinical and lifestyle characteristics of patients with psoriasis registered in the British Association of Dermatologists Biologics and Immunomodulators Register and the aligned Biomarkers and Stratification to Optimise outcomes in Psoriasis study who were designated as ‘super responders’ (SRs), defined as patients on their first biologic with more than 5 years continuous biologic monotherapy, or ‘super nonresponders’ (SNRs), defined as patients on their first biologic who had discontinued at least two biologics in their first year of treatment, to biologic therapy. Female sex, shorter study follow-up, higher Dermatology Life Quality Index, high frequency of adalimumab, less frequency of ustekinumab at registration, and higher number of comorbidities were associated with SNRs compared with SRs.