Clinical trial: inhibitory effect of revaprazan on gastric acid secretion in healthy male subjects |
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Authors: | Kim Hyung-Keun Park Soo-Heon Cheung Dae-Young Cho Young-Seok Kim Jin-Il Kim Sung-Soo Chae Hiun-Suk Kim Jae-Kwang Chung In-Sik |
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Affiliation: | Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Yeongdeungpo-gu, Seoul. |
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Abstract: | Background and Aim: Revaprazan is a novel acid pump antagonist. The aim of this study was to investigate the inhibitory effect of revaprazan on gastric acid secretion in healthy male subjects. Methods: In a double‐blind, three‐way cross‐over study, 30 healthy male volunteers were randomized to 100, 150 or 200 mg of oral revaprazan daily for 7 days. Serum gastrin concentration was measured, and 24‐h intragastric pH was recorded at baseline and on days 1 and 7 of each administration period. Serial blood samples were processed for pharmacokinetics. Results: Median intragastric pH over 24 h and mean percentage time that pH was > 4 increased in a dose‐dependent manner and were significantly higher on days 1 and 7 compared with baseline in all groups (P < 0.05). The antisecretory effect of revaprazan was rapid and nearly maximal on day 1 in all groups. Serum gastrin levels were rapidly normalized by 100 and 150 mg/day of revaprazan on days 1 and 7, but were significantly higher in the 200 mg/day revaprazan group. The pharmacokinetic effect was rapidly absorbed and eliminated on days 1 and 7 in all groups. Conclusions: Revaprazan rapidly and effectively inhibits gastric acid secretion in healthy male subjects. Therefore, revaprazan can be used as an effective drug for acid‐related disease. |
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Keywords: | acid pump antagonist proton pump inhibitor revaprazan |
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