To Assess Bioavailability, Food Effect and Pharmacokinetics of Gepotidacin Tablets: A Phase I, Single-Dose, 2 Part Study in Healthy Subjects.

This study is divided in 2 parts. Part 1a is being conducted to evaluate the safety, tolerability, and relative bioavailability of the 2 free base tablet formulations (roller compacted \[RC\] and high shear wet granulation \[HSWG\]) compared to the reference capsule formulation under fasted conditions. This is a 3-period; cross-over study that will guide which gepotidacin formulation will be used for future studies. Following review of pharmacokinetic (PK) and safety data in Part 1a, a decision will be made whether to proceed with Parts 1b and 2. Part 1b is a 2-period, cross-over study and will assess the effect of food on the PK of the selected gepotidacin tablet formulation from Part 1a. In Part 2, the PK of the selected gepotidacin tablet formulation from Part 1a in Japanese (2a) and Chinese (2b) subjects will be evaluated under fasted conditions. The duration of the study (from Screening to the Follow-up visit) will be approximately 44 days (Part 1a), 41 days (Part 1b) and 38 days (Part 2a and 2b each), respectively. The approximate number of subjects enrolled in Part 1a will be 27 (9 subjects in each of the 3 treatment sequences), 16 in Part 1b (8 subjects in each of the 2 treatment sequences) and 12 Japanese and 12 Chinese subjects in Part 2a and 2b, respectively.