Researchers reported the first blinded, randomized, sham-controlled evidence that duodenal mucosal resurfacing may help people avoid regaining weight after stopping Ozempic or Wegovy, according to findings presented at Digestive Disease Week 2026.
How the procedure works to reset the gut
Duodenal mucosal resurfacing uses controlled heat to remove damaged tissue from the inner lining of the duodenum, encouraging the growth of new, healthier tissue in the first section of the small intestine just below the stomach.
Results from the early trial group show less weight regain
Among 45 participants who had lost at least 15% of their body weight using tirzepatide before stopping the drug, 29 received the resurfacing treatment while 16 underwent a sham procedure, with those in the treatment group regaining significantly less weight after six months.

For more on this story, see Time-Restricted Eating & PCOS Weight Loss: A Clinical Trial.
On average, patients lost about 40 pounds while on GLP-1 therapy, and participants who received the sham procedure regained about 40% more weight than those who underwent the actual treatment.
Patients who had more extensive resurfacing regained only about 7 pounds and kept more than 80% of their weight loss, while the control group regained roughly twice as much.
This follows our earlier report, Long Covid & Vaccines: Common Post-Vaccine Symptoms.
What is duodenal mucosal resurfacing and how is it performed?
Duodenal mucosal resurfacing is an investigational endoscopic treatment that uses controlled heat to ablate the unhealthy mucosal layer of the duodenum, promoting regeneration of healthier tissue.
Who might benefit from this procedure after stopping GLP-1 medications?
People who have lost weight using medications like Ozempic or Wegovy and wish to maintain that loss without ongoing medication may benefit, based on the trial’s focus on participants who stopped tirzepatide after initial weight loss.
