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Research Article: Evolution of Ritlecitinib Population Pharmacokinetic Models During Clinical Drug Development

Date Published: 2023-11-02

Abstract:
Ritlecitinib is an oral Janus kinase 3/tyrosine kinase expressed in hepatocellular carcinoma family inhibitor undergoing parallel clinical development for alopecia areata, vitiligo, ulcerative colitis, Crohn’s disease, and rheumatoid arthritis.

Introduction:
Model development occurs through a series of iterative cycles. At each node of the model development lifecycle, new information is incorporated and, after assessment, the model becomes available for application in clinical drug development. As the drug moves from phase I through to phase III, the accruing data are used to evolve the population pharmacokinetic (PK) model in iterations to help with decisions needed for progressing the drug through each development phase. Availability of population PK models is…

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