GLPwatch

Body Surface Gastric Mapping in Patients on Semaglutide

NCT06401746 · Recruiting

Last updated 2026-05-28

This clinical trial is testing a new method called Body Surface Gastric Mapping to measure stomach activity in people taking semaglutide who experience stomach motility issues.

Status Recruiting Currently enrolling participants.
Type Observational
Participants 15 people Planned (estimated).
Who can join Ages 18+ · all sexes
Timeline Started 2024-05 · est. completion 2025-06
Where 1 site · Australia

What this study is testing ClinicalTrials.gov NCT06401746 ↗

Description as written by the study sponsor.

Glucagon-like receptor-1 agonists (GLP-1 RAs), such as Semaglutide (Ozempic), are a class of drugs used for glycemic control in diabetes, and for weight loss and management in obesity. It has been shown to delay gastric emptying and lead to gastrointestinal symptoms. However, the exact mechanisms are unknown. Alterations in gastric function, including myoelectrical activity, may be a likely mechanism of gastrointestinal side effects. Body Surface Gastric Mapping (BSGM) using the FDA-approved medical device Gastric Alimetry is a novel non-invasive diagnostic tool to assess gastric myoelectrical activity and patient-reported symptoms to achieve accurate non-invasive biomarkers of gastric dysfunction. A proof-of-principle case study of Ozempic using Gastric Alimetry showed abnormal gastric myoelectrical activity along with the development of severe bloating following the meal after 5 weeks of Ozempic use. This study will extend on this initial finding by conducting an exploratory pilot study to investigate the effects on gastric motility in patients with and without diabetes before and after Ozempic. It is hypothesized that Gastric Alimetry will show changes in gastric myoelectrical activity and symptoms in patients after being on the weekly injectable Ozempic compared to baseline.

Treatments tested

Main thing measuredChange in overall postprandial BSGM Gastric Alimetry Rhythm Index (minimum: 0; maximum: 1) on treatment compared to baseline (with a lower score meaning worse outcome).
SponsorUniversity of Western Sydney
Conditions studiedSemaglutide-Induced Gastric Motility, Gastroparesis
GLP-1 drugs semaglutide

Full protocol, eligibility, and contacts on ClinicalTrials.gov NCT06401746 ↗