Abstract
Atogepant, an oral calcitonin gene-related peptide receptor antagonist, is approved for the preventive treatment of migraine. A phase 1, open-label, single-dose, 2-period crossover study evaluated the effect of a high-fat meal on the pharmacokinetics and safety of atogepant in 20 healthy adults. Administration of atogepant 60mg immediate-release (IR) tablets under fed conditions reduced the area under the plasma concentration-time curve (AUC) from 0 to time t and from 0 to time infinity by approximately 18% and reduced the maximum plasma concentration (Cmax) by 22%. The 90% confidence intervals for the geometric mean ratios of Cmax and AUC were not contained within the bioequivalence limits of 80%-125%. There was no change in the median time to maximum plasma concentration in the fed versus fasted state. The incidence of treatment-emergent adverse events (TEAEs) was similar between fed and fasted conditions. Four TEAEs were considered related to study intervention and were reported after participants received atogepant under fasted conditions (3 participants). A single-dose atogepant 60mg IR tablet was safe and tolerated under both fed and fasted states. Due to the wide effective dose range of 10-60mg/day for atogepant for the preventive treatment of migraine, the food effect on its pharmacokinetics is not considered clinically relevant.
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