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Comparison of the pharmacokinetics and pharmacodynamics of YH4808 in healthy subjects for defining an appropriate dosing regimen

 Sukyong Yoon  ;  EunSil Oh  ;  Min Soo Park  ;  Seong Bok Jang  ;  Hae Mi Byun  ;  Hyeonsoo Park  ;  Heeyoung Kim  ;  Choon Ok Kim 
 Translational and Clinical Pharmacology, Vol.29(3) : 150-159, 2021-09 
Journal Title
Translational and Clinical Pharmacology
Issue Date
Esomeprazole ; Pharmacodynamics ; Pharmacokinetics ; YH4808
YH4808 is a novel potassium-competitive acid blocker developed for gastric acid-related disorders. Previous studies indicate its potential to improve symptoms of gastric acid-related disorders. The current study was aimed to find the optimal regimen of YH4808 for night time pH control. This study was performed in two parts. Each was a randomized, open-label, active-controlled, multiple-doses, two-treatment, two-period crossover study conducted in 20 healthy Korean volunteers. Subjects were randomly assigned to one of the four groups. The three groups received different dosage regimens of YH4808 (100 mg twice a day, 200 mg once a day, or 200 mg twice a day), and the fourth group received esomeprazole 40 mg twice a day. The pharmacokinetic parameters demonstrated that the systemic exposure of YH4808 increased in a dose-proportional manner. The difference in the proportion of time above pH 4 over 24 h from the baseline was the greatest in the group receiving YH4808 200 mg twice a day. The values of the area under the effect curve at night time (12 A.M.-7 A.M.) were higher in all YH4808 groups than in the esomeprazole group. However, the differences among the YH4808 groups were not statistically significant (p > 0.05). YH4808 exhibited potential for better pH control during the night in comparison to esomeprazole. The optimal regimen for night time pH control among all the YH4808 regimens was 200 mg twice a day.
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6. Others (기타) > Dept. of Clinical Pharmacology (임상시험센터) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Choon Ok(김춘옥) ORCID logo https://orcid.org/0000-0002-2319-1108
Park, Min Soo(박민수) ORCID logo https://orcid.org/0000-0002-4395-9938
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