In vitro only: primary human dermal fibroblasts and keratinocytes; no in vivo pharmacodynamics
“Primary and secondary pharmacodynamics studies with bimekizumab were conducted in vitro. Pharmacodynamic activity of bimekizumab was investigated in primary cultures of normal human dermal fibroblasts (NHEK) and epithelial keratinocytes (NHDF).”
No relevant psoriasis animal model, low IL-17A/F expression in normal tissue, no direct PD markers
“No in vivo pharmacodynamics assessment has been conducted given the low expression of IL- 17A and IL-17F in normal tissues, as no direct pharmacodynamics markers are available, and as no appropriate and relevant animal model of PSO is available.”