A Study to Examine the Effect of Omeprazole, Famotidine, and an Acidic Beverage on the Pharmacokinetics of Entinostat in Healthy Adult Subjects

The purpose of this study is therefore to evaluate the effect of concomitant drugs through an increase of intra-gastric pH levels on the bioavailability of entinostat. The primary objectives of this study are to evaluate the effect of multiple doses of omeprazole, famotidine, and the effect of an acidic beverage in combination with omeprazole on the single-dose PK profile of entinostat. The secondary objectives are to evaluate the safety and tolerability of a single dose of entinostat when administered with multiple doses of omeprazole, famotidine, and when administered with an acidic beverage in combination with omeprazole.