A Multicenter Open-label, Prospective Study to Assess the Concentration of Bimekizumab in Mature Breast Milk From Mothers Receiving Treatment With Bimzelx® (Bimekizumab)

Inclusion Criteria: * Study participant must be at least 18 years of age at the time of signing the informed consent. * Study participant is being treated with commercial bimekizumab per locally approved prescribing information and in accordance with her treating physician. * Study participant is breastfeeding and intends to breastfeed throughout the Sampling Period. * The decision to treat with bimekizumab and to breastfeed is made independently from and prior to the study participant consenting to participate in the study. * Study participant must be on bimekizumab treatment for at least 12…