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Evaluating a Wireless Optical Capsule Sensor for Detecting Active Upper Gastrointestinal Bleeding
Led by Chinese University of Hong Kong · Updated on 2026-04-22
193
Participants Needed
1
Research Sites
26 weeks
Total Duration
AI-Summary
What this Trial Is About
Researchers are evaluating the diagnostic performance of a wireless optical sensor capsule called HemoPill to detect upper gastrointestinal bleeding UGIB, a serious medical emergency that requires prompt hospitalization and resources. Current risk scores for predicting bleeding outcomes are not very accurate, so this study aims to validate a new, non-invasive device to better identify patients who need urgent care. Previous studies have shown promising sensitivity and specificity for the HemoPill in detecting active bleeding without adverse events. Participants will swallow the HemoPill capsule, which uses sensors to detect bleeding in the upper gastrointestinal tract. Within 24 hours, participants will also undergo an oesophago-gastro-duodenoscopy OGD procedure to compare findings with the capsule results. The study is non-randomized and single-blinded, focusing on adults with suspected UGIB. The study will measure the presence of active bleeding during OGD, technical success, safety events, capsule retention, and the time from capsule ingestion to positive bleeding detection. During the study, participants will be monitored for adverse events up to 30 days after the procedures. Researchers will collect data from the capsule and OGD to assess the accuracy of the HemoPill in detecting bleeding. The study will also track capsule retention and time to detection of bleeding signals. The total participation involves capsule ingestion followed by OGD within 24 hours and safety follow-up, aiming to improve risk assessment for patients with suspected UGIB.
CONDITIONS
Brief Title
A Study to Evaluate the Performance of a Wireless Optical Sensor Capsule in Detection of UGIB
Research Team
L
Louis HS Lau, FRCP
F
Felix Sia, MSc
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