PURPOSE:The aim of this study was to investigate the effect of a high-fat meal on the single-dose pharmacokinetics (PK) and tolerability of HMPL-689 in Chinese healthy volunteers.
METHODS:In this study, 34 eligible male volunteers received a single 30 mg dose of HMPL-689 capsules following an overnight fast or a high-fat breakfast prior to dosing. Blood samples were collected at the designated time points for pharmacokinetic analysis. Safety and tolerability were assessed throughout the study.
RESULTS:Total 32 healthy male volunteers were completed in the study. The GMRs of AUC0-t, AUC0-∞, Cmax and their 90% CIs were 1.12 (1.09, 1.15), 1.12 (1.09, 1.15), and 0.64 (0.58, 0.70), respectively, in healthy male subjects after oral administration of HMPL-689 following intake of a high-fat diet versus under fasting state. The 90% CI of Cmax GMR fell outside the acceptable equivalent range (0.8-1.25). In addition, the median Tmax of HMPL-689 was 1.0 hours and 4.0 hours under the fasting and the fed conditions.
CONCLUSIONS:The study indicated that intake of a high-fat diet had an impact on the in vivo PK profile of HMPL-689 in healthy Chinese male subjects, which could obviously reduce the oral absorption rate of HMPL-689 and had little effect on the extent of oral absorption (AUC).