Relative Bioavailability and Food Effect Study of Losmapimod 15 mg Tablets

This study is a Phase 1, open-label, 3-period, 6-sequence, randomized, single-dose, crossover study designed to assess the relative bioavailability of a 15 mg tablet of losmapimod versus two 7.5 mg tablets of losmapimod under fasted conditions and to assess the effect of food on the pharmacokinetics of a 15 mg tablet of losmapimod under fasted and fed conditions in 18 healthy subjects. The study will consist of a screening period, 3 treatment periods with a single dose of study drug per treatment period, a 48-hour washout period between dosing, and an end of study visit. Subjects will be randomly assigned to receive 1 of 6 treatment sequences (3 subjects per treatment sequence) prior to dosing on Day 1 of Period 1. The primary endpoint of the study is to assess the relative bioavailability and the effect of food on the pharmacokinetics of a new 15 mg tablet formulation of losmapimod. Secondary endpoints include assessing the safety and tolerability and evaluating target engagement in the blood of a new 15 mg tablet formulation of losmapimod in healthy subjects.