A Single Supratherapeutic Dose of Atogepant Does Not Affect Cardiac Repolarization in Healthy Adults: Results From a Randomized, Single-Dose, Phase 1 Crossover Trial.

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Boinpally R, McNamee B, Yao L, Butler M, McGeeney D, Borbridge L, Periclou A

A Single Supratherapeutic Dose of Atogepant Does Not Affect Cardiac Repolarization in Healthy Adults: Results From a Randomized, Single-Dose, Phase 1 Crossover Trial.

Clin Pharmacol Drug Dev. 2021 Sep;10(9):1099-1107. doi: 10.1002/cpdd.940. Epub 2021 May 4.

PubMed ID
33942560 [ View in PubMed
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Abstract

Atogepant is a selective, oral calcitonin gene-related peptide receptor antagonist in development for preventive treatment of migraine. This randomized, double-blind, phase 1 crossover study evaluated the cardiac repolarization effect of a single supratherapeutic (300 mg) atogepant dose vs placebo in healthy adults. Moxifloxacin 400 mg was the open-label active control. The primary end point was a change from baseline in Fridericia-corrected QT intervals (DeltaQTcF). Sixty participants were randomized to atogepant 300 mg, placebo, and moxifloxacin; 59 (98.3%) completed all interventions. Assay sensitivity was confirmed: lower 90% confidence interval limit for QTcF interval change from baseline (DeltaDeltaQTcF) for moxifloxacin was >5 millisecond vs placebo at prespecified 2-, 3-, and 4-hour time points. Following single-dose atogepant 300 mg, mean atogepant DeltaDeltaQTcF and upper 90% confidence interval limits were lower than the 10-millisecond threshold at all time points. Atogepant mean peak plasma concentration was 3197 ng/mL, area under the concentration-time curve from time 0 to time t was 16 640 ng * h/mL, area under the concentration-time curve from time 0 to 24 hours was 16 607 ng * h/mL, and median time to peak plasma concentration was 2.1 hours. The incidence of adverse events was low; no serious adverse events or elevations of liver enzymes were reported. Overall, a single supratherapeutic dose of atogepant was safe and did not impact cardiac repolarization in healthy participants.

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