ArticleCPT: pharmacometrics & systems pharmacology2026
Physiologically Based Pharmacokinetic Model of Brigatinib in Healthy Volunteers and Patients With Cancer.
Article in CPT: pharmacometrics & systems pharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Brigatinib, an oral ALK inhibitor for metastatic NSCLC, lacks dosing guidance for special populations such as the Chinese. This study developed a physiologically based pharmacokinetic (PBPK) model using European data from patients with hepatic/renal impairment and drug-drug interaction (DDI) studies (itraconazole, rifampin). The model was then applied to predict (1) pharmacokinetics (PK) in the Chinese population; (2) PK in Chinese patients with hepatic/renal impairment; and (3) DDI in Chinese patients. Validated against clinical data, the model successfully predicted brigatinib PK alone and with CYP3A4 modulators. Food simulations showed a slight absorption delay without clinically meaningful exposure reduction. In hepatic/renal impairment, the model accurately predicted exposure changes across severity groups (fold error < 2). Extending the European-validated model to Chinese populations, the findings demonstrate reliable predictions of brigatinib PK in Chinese individuals as well as in Chinese patients with hepatic or renal impairment.
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