Phase 3 to Evaluate the Efficacy and Safety of DWP14012 in Patients With Gastric Ulcer

Inclusion Criteria: 1. At least one gastric ulcer is present, and the largest gastric ulcer measures ≥ 3 mm and ≤ 30 mm in diameter 2. The Sakita-Miwa classification of the largest gastric ulcer is A1 or A2. Exclusion Criteria: 1. Participants with a history of Zollinger-Ellison syndrome or conditions associated with gastric hypersecretion. 2. Participants who, within 30 days prior to the screening visit (Visit 1), have undergone or are scheduled to undergo major surgery that may affect gastric acid secretion. 3. Participants with a history of malignancy within 5 years prior to the screening visit (Visit 1); gastrointestinal malignancies are excluded regardless of the time elapsed. 4. Participants who, at the screening visit (Visit 1), have gastrointestinal active bleeding , esophageal stricture, ulcer-induced stenosis, pyloric stenosis, gastroesophageal varices, Barrett's esophagus (\> 3 cm), esophageal dysplasia, duodenal ulcer, refractory ulcer, perforated ulcer, or surgery-induced ulcer 5. Participants who, at the screening visit (Visit 1), have pancreatitis or inflammatory bowel disease (including Crohn's disease, ulcerative colitis, or intestinal Behçet's disease).