For many women, the hardest question on a GLP-1 is not how to lose, but how to keep what they have. Weight regain after stopping Ozempic, Wegovy, Mounjaro, or Zepbound is the rule, not the exception, because the body defends its old set point once the medication leaves. So a new trial presented at Digestive Disease Week in April 2026 is worth a careful look: a 1-hour endoscopic procedure, nicknamed a "gut reset," that may soften the rebound.
What happened
The procedure is called duodenal mucosal resurfacing, or DMR. Using a slim catheter passed through the mouth (no incisions), a doctor delivers controlled heat to a thin layer of the small intestine's lining so that fresher tissue can grow back. The idea is to reset how the gut senses food and signals the rest of the body.
In the REMAIN-1 trial, led by Dr. Shelby Sullivan at Dartmouth Health Weight Center and sponsored by Fractyl Health, 45 adults (80% of them women, median age 43) first lost at least 15% of their body weight on tirzepatide, the drug sold as Mounjaro and Zepbound. They then stopped the medication. Twenty-nine received DMR; sixteen got a sham (placebo) procedure so neither group knew which they had.
Three months after stopping the drug, the DMR group kept losing, dropping a further 2.5% of body weight, while the sham group regained 10%. At the six-month read, those who had more tissue resurfaced held on to more than 80% of their loss and regained roughly seven pounds; the sham group put back about double that, a regain around 40% larger.
What this means for you
Two cautions matter more than the headline. First, this is early and investigational. DMR is not approved by the FDA for weight maintenance, and the pivotal six-month data from the full program of more than 300 people is not expected until late in 2026. Second, the trial used tirzepatide specifically, so the same numbers should not be assumed for semaglutide (Ozempic, Wegovy).
What the trial quietly confirms is the thing you already feel: stopping a GLP-1 is a physiological event, not a willpower test. If a one-hour procedure can move the regain curve, the rebound was never about discipline. That should take some weight off your shoulders, whatever happens with the device.
The proven basics have not changed. Protein at every meal and strength training to protect the muscle you worked to keep do the unglamorous work of holding your new weight. A planned, gradual step-down with your prescriber beats a sudden stop. And the metabolic set point that drives regain is exactly what DMR is trying to nudge, which is why the basics that defend muscle still matter most.
What to do with this
Whatever comes after the medication, the eating problem is the same one: enough protein, enough fibre, enough fluid. The calculator gives you those three numbers with the arithmetic attached.