HemoPill Acute ® in Suspected Nonvariceal Upper Gastrointestinal Bleeding

Inclusion Criteria: * Emergency presentation with clinical suspicion of non-variceal upper GI bleeding (e.g. haematin vomiting, melena, etc.) * hemodynamic stable patient (heart rate \<100 / min, Blood pressure sys ≥ 100mmHg) * Emergency endoscopy indicated (modified Glasgow-Blatchford-Score ≥ 2 points) * Administration of proton pump inhibitors possible (no allergy known) * Good communication (without translator) with the study doctor and fulfill all requirements of the study * Written consent after detailed information about the study Exclusion Criteria: * Hemodynamically unstable patients (HF\> 100 / min, RR \<100mmHg despite fluid administration) with indication for endoscopy within 12 hours * Indication for endoscopy within 12 hours recommended by endoscopy call service * Clinical suspicion of variceal bleeding of the upper GI tract (risk factors according to german guidelines: cirrhosis of the liver, splanchnic thrombosis, thrombocytopenia, known increased liver / spleen stiffness, known esophageal varices) * Clinical suspicion of lower GI bleeding (e.g. hematochezia) * Vomiting blood (hematemesis observed by the emergency doctor or in the clinic) * Patients with inflammatory bowel disease (Crohn's disease or ulcerative colitis) * Severe acute and chronic organ diseases that need treatment (e.g. kidney replacement treatment) (ASA ≥4) * Changed anatomy of the upper GI tract (e.g. gastric resection) * Known or suspected gastrointestinal obstructions, strictures, fistul…