ArticleCPT: pharmacometrics & systems pharmacology2026
Objective First, Method Second: Why the Estimand Definition Comes First in Pharmacometric Covariate Modeling.
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
Pharmacometric covariate analyses support both mechanistic understanding and clinical decision-making, that is, two different objectives which require different analysis targets. Adopting the ICH E9(R1) estimand framework clarifies this distinction, reconciling mechanistic modeling (conditional covariate effects) with regulatory and clinical needs (unconditional covariate effects), clarifying that estimand definition, i.e. the objective, and not the estimator, is the first choice to make in covariate modeling. This structured approach optimizes quantitative evidence for communicating clinical impact and patient care.
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