Parent-metabolite PBPK model of methotrexate to inform pediatric extrapolation, transporter-mediated drug–drug interactions, and renal impairment
Methotrexate (MTX) is widely used in treating chronic inflammatory diseases and in chemotherapy for both adult and pediatric patients. Its pharmacokinetics are complex, as MTX is a substrate of multiple transporters. Particularly during high-dose chemotherapeutic use, it is associated with severe toxicities including r...