Median GSK3206944 intracellular molar concentration over time (linear and semilog) in (A) part Aa and (B) part Cb, day 1 (pharmacokinetic populationc). The median intracellular molar concentration of the metabolite GSK3206944 in monocytes over 4 hours in participants in part A treated with a single dose of GSK3358699 (10, 20, 35, 30 and 40 mg) are shown on a linear (top left) and semilogarithmic scale (top right). Concentrations were not quantifiable for single doses of 1 and 3 mg in part A. There was no evidence for enhanced intracellular GSK3206944 concentrations on repeat dosing at the 10 mg dose investigated in part C (bottom). SD, single dose.
aPart A was a single ascending‐dose crossover study in two interlocking cohorts. Each participant received a maximum of two single ascending oral doses of GSK3358699 (1, 3, 10, 20, 40 or 30 mg) and one dose of placebo.
bIn part C, participants received 10 mg of GSK3358699 or placebo daily for up to 14 days.
cThe pharmacokinetic population included all participants who received an active dose of the study drug and for whom pharmacokinetic samples were obtained and analysed