Population pharmacokinetic analysis of tepotinib, an oral MET kinase inhibitor, including data from the VISION study
Wenyuan Xiong, Orestis Papasouliotis, E Niclas Jonsson, Rainer Strotmann, Pascal Girard, Wenyuan Xiong, Orestis Papasouliotis, E Niclas Jonsson, Rainer Strotmann, Pascal Girard
Abstract
Purpose: Tepotinib is a highly selective, potent, mesenchymal-epithelial transition factor (MET) inhibitor, approved for the treatment of non-small cell lung cancer (NSCLC) harboring MET exon 14 skipping. Objectives of this population pharmacokinetic (PK) analysis were to evaluate the dose-exposure relationship of tepotinib and its major circulating metabolite, MSC2571109A, and to identify the intrinsic/extrinsic factors that are predictive of PK variability.
Methods: Data were included from 12 studies in patients with cancer and in healthy participants. A sequential modeling approach was used to analyze the parent and metabolite data, including covariate analyses. Potential associations between observed covariates and PK parameters were illustrated using bootstrap analysis-based forest plots.
Results: A two-compartment model with sequential zero- and first-order absorption, and a first-order elimination from the central compartment, best described the plasma PK of tepotinib in humans across the dose range of 30-1400 mg. The bioavailability of tepotinib was shown to be dose dependent, although bioavailability decreased primarily at doses above the therapeutic dose of 500 mg. The intrinsic factors of race, age, sex, body weight, mild/moderate hepatic impairment and mild/moderate renal impairment, along with the extrinsic factors of opioid analgesic and gefitinib intake, had no relevant effect on tepotinib PK. Tepotinib has a long effective half-life of ~ 32 h.
Conclusions: Tepotinib shows dose proportionality up to at least the therapeutic dose, and time-independent clearance with a profile appropriate for once-daily dosing. None of the covariates identified had a clinically meaningful effect on tepotinib exposure or required dose adjustments.
Trial registration: ClinicalTrials.gov NCT02864992.
Keywords: MET kinase inhibitor; NSCLC; Population PK; Tepotinib.
Conflict of interest statement
Wenyuan Xiong was employed by the Merck Institute of Pharmacometrics, Lausanne, Switzerland, an affiliate of Merck KGaA for the duration of the study. Orestis Papasouliotis and Pascal Girard are employees of the Merck Institute of Pharmacometrics, Lausanne, Switzerland, an affiliate of Merck KGaA. Rainer Strotmann is an employee of Merck Healthcare KGaA, Darmstadt, Germany. E. Niclas Jonsson is an employee of Pharmetheus AB, Sweden.
© 2022. The Author(s).
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Source: PubMed