Effect of Gastric Electrical Stimulation on Serum Insulin Levels

The goal of this observational study is to determine how much effect turning the subject's Gastric Electrical Stimulator off for up to four hours will have on levels of insulin, C-peptide, GLP-1 and Glucose levels in patients with gastroparesis who have had a GES for at least three months, who are not taking diabetic prescribed exogenous insulin. EKG recordings will be made and analyzed for Heart Rate Variability and Power Spectral Analysis.

NCT Number	NCT07635576
Lead Sponsor	Indiana University
Conditions	Gastroparesis Nondiabetic
Enrollment	32 participants
Start Date	2026-06-08
Primary Completion	2028-07-31 (estimated)
Study Completion	2030-09-30 (estimated)
Updated on ClinicalTrials.gov	2026-06-09