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Study to Investigate the Safety, Tolerability and Efficacy of YH4808 in Patients With Reflux Esophagitis

Reflux Esophagitis Clinical Trial

Official title:
Randomized, Double-blind, Active-controlled, Multi-center Clinical Trial to Investigate the Safety, Tolerability and Efficacy of YH4808 in Patients With Reflux Esophagitis

Clinical Trial Summary

This study is to investigate the optimal clinical dose and administration methods of YH4808 in patients with reflux esophagitis by evaluating the safety and efficacy after YH4808 oral administration.

Clinical Trial Description

In the result of recent meta-analysis, there was no improvement in symptoms with the first administration of PPI in about 75% of GERD patients, and symptoms were still sustained in about 50% of patients after administration of more than 3 days. Especially the nocturnal secretion of gastric acid was not effectively inhibited, and about 25% of GERD patients could not achieve the proper therapeutic effects even after PPI treatment twice daily for 4-8 weeks.

YH4808, as a selective K+- competitive acid blocker (P-CAB), is no need for activation by gastric acid since it competitively inhibits proton pump with K+. Thus, the inhibition of gastric acid secretion by YH4808 is prompt and effective. In addition, the inhibitive effect of gastric acid secretion by stimulation of histamine is proved to be more powerful than PPI (esomeprazole) and sustained in in-vitro/in-vivo model, and 24-h inhibition of gastric acid secretion and especially nocturnal inhibition of gastric acid secretion was observed to be superior to esomeprazole with repeat doses for 7 days in healthy volunteers.

Based on these nonclinical and clinical outcomes, an exploratory phase-II clinical trial is to be conducted to determine the proper treatment dose and administration method of YH48084 for GERD patients. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01538849
Study type Interventional
Source Yuhan Corporation
Contact
Status Completed
Phase Phase 2
Start date December 2012
Completion date May 2014
View Details
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