Abeprazan hydrochloride (DWP14012 hydrochloride) is a potassium-competitive acid blocker. Abeprazan hydrochloride inhibits H+, K+- ATPase by reversible potassium-competitive ionic binding with no acid activation required. Abeprazan hydrochloride is developed as a potential alternative to proton pump inhibitor for the treatment of acid-related diseases[1].

The mechanism of action of Abeprazan hydrochloride is reversibly binding to H+, K+‐ATPase, and, unlike that of PPIs, does not require acidic environment for drug activation[1].

Abeprazan hydrochloride (DWP14012 hydrochloride) inhibits acid secretion in a dose-dependent manner and the inhibition of gastric acid secretion is equal to or greater than that of vonoprazan, a previously approved P-CAB, in various in vivo studies using pylorus-ligated rats, lumen-perfused rat models and heidenhain pouch dog models[1].

[1]. Sunwoo J, et al. Safety, tolerability, pharmacodynamics and pharmacokinetics of DWP14012, a novel potassium-competitive acid blocker, in healthy male subjects. Aliment Pharmacol Ther. 2018 Jul;48(2):206-218.