bimekizumab bimekizumab bimekizumab, sold under the brand name bimzelx, is a humanized anti-il17a, anti-il-17f, and anti-il17af monoclonal antibody that is used to treat plaque psoriasis. bimekizumabmonoclonal antibodytypewhole antibodysourcehumanizedtargetil17a, il17f, il17afclinical datatrade namesbimzelxlicense data eu ema: by inn pregnancycategory au: c atc codel04ac21 (who) legal statuslegal status au: s4 (prescription only) ca: ℞-only / schedule d eu: rx-only identifierscas number1418205-77-2unii09495uim6vkeggd11550 the most common side effects include upper respiratory tract infections (nose and throat infection) and oral candidiasis (thrush, a fungal infection in the mouth or throat). bimekizumab was approved for medical use in the european union in august 2021. medical uses bimekizumab is indicated for the treatment of moderate to severe plaque psoriasis in adults who are candidates for systemic therapy. history this drug is being developed by belgian pharmaceutical company ucb. phase iii trials have demonstrated that bimekizumab is superior to not only adalimumab but also secukinumab and ustekinumab for the treatment of plaque psoriasis. society and culture names bimekizumab is the international nonproprietary name (inn).