Pharmacokinetics of Ubrogepant in Healthy Japanese and White Adults
Abstract
Ubrogepant is a calcitonin gene-related peptide receptor antagonist indicated for the acute treatment of migraine with or without aura in adults. The objectives of this study were to evaluate (1) single-dose pharmacokinetics (PK) and dose proportionality of ubrogepant in Japanese participants, (2) the safety and tolerability of ubrogepant in healthy Japanese and White participants, and (3) to compare the PK of ubrogepant in Japanese versus White participants. A total of 48 participants were enrolled into 4 cohorts (N = 12 [9 active + 3 placebo] per cohort). A single dose was administered on Day 1 following an overnight fast to assess the PK of ubrogepant at 3 dose levels and test dose proportionality between 25 and 100 mg in Japanese participants. White participants were randomly assigned to ubrogepant (100 mg) or placebo. Dose proportionality was observed in the dose range of 25-100 mg in Japanese participants. Systemic exposure was 20% lower in Japanese participants as compared with White participants, but this difference is unlikely to be clinically relevant. Single doses of ubrogepant (25-100 mg) had a safety profile similar to placebo, and no differences in the safety profile of ubrogepant 100 mg were observed between Japanese versus White participants.
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 48 participants or records.
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