Effects of High- and Low-Fat Meals on the Bioavailability and Pharmacokinetics of Votoplam, a HTT Gene Splicing Modifier

  • Clin Pharmacol Drug Dev. 2026 Mar;15(3):e1626. doi: 10.1002/cpdd.1626.
Lucy Lee  1 Amy-Lee Richards  1 Nageswara Reddy  1 Brian Beers  1 Lee Golden  1 Ronald Kong  1
Affiliations
  • 1. PTC Therapeutics, Inc., Warren, NJ, USA.
Abstract

Votoplam is a novel, orally bioavailable, small molecule HTT gene splicing modifier that is being developed for the treatment of Huntington's disease. This was a single dose, open-label, two-period, crossover food effect study that evaluated the effect of high- and low-fat meals on 20 mg votoplam in healthy participants. There was a washout of 21 days between the two periods. Twenty-six participants completed the study. There were minimal changes in the bioavailability and pharmacokinetics of votoplam following administration of a single dose of 20 mg votoplam when taken with low-fat and high-fat meals relative to fasted condition. The mean Cmax, AUC0-last, and AUC0-inf for votoplam following administration of a single dose of 20 mg votoplam were 1.4-fold, 1.2-fold, and 1.1-fold higher, respectively, in high-fat fed conditions, and were 1.3-fold, 1.1-fold, and 1.1-fold higher, respectively, in the low-fat fed conditions, when compared to fasted conditions. There were no relevant safety findings in any of the treatment groups. Votoplam can be administered with or without food in patients.

Keywords
Huntington's disease; food effect; pharmacokinetics; rare disease.
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