- Use of biological therapies (marketed/not marketed) with a possible effect on inverse psoriasis within 4 weeks (etanercept), 8 weeks (adalimumab, alefacept, infliximab), 16 weeks (ustekinumab, secukinumab) or 4 weeks/5 half-lives (whichever is longer) for experimental biological products prior to Visit 2 (Start of treatment)