Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
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
Brief 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.