This study aims to evaluate the efficacy and safety of JP-1366 in Patients with NERD
Subjects who have experienced both heartburn and acid regurgitation
Subjects in whom no mucosal breaks were observed on upper GI endoscopy at Visit 1 by LA Classification
Subjects who fully understand this clinical trial and voluntarily signed the informed consent form
Subjects who have significant gastrointestinal diseases or procedures affecting the esophagus, stomach, or duodenum
Subjects who have a history of recent substance abuse, malignancy, systemic autoimmune or immune deficiency diseases, refractory response to PPI/P-CAB, hypersensitivity to study drugs, genetic metabolic disorders, or significant psychiatric conditions.
Subjects who showed clinically significant abnormalities in laboratory tests
Positive result in the H. pylori test