A Prospective, Randomized, Double-Blind, Sham-Controlled, Multicenter, Pivotal Study to Assess the Efficacy of Revita® Duodenal Mucosal Resurfacing (DMR) on Body Weight Maintenance in Participants With Obesity and Who Have Achieved at Least 15% Weight Loss on Tirzepatide Obesity Pharmacotherapy
Fractyl is evaluating Revita Duodenal Mucosal Resurfacing (DMR) in the REMAIN-1 pivotal study, which is designed to include two cohorts - an open label cohort referred to as REVEAL-1, and a randomized cohort, which includes both a midpoint analysis and a pivotal analysis. Patients who previously lost at least 15% of their body weight on a GLP-1 can qualify for the open label REVEAL-1 cohort. The data generated from the REVEAL-1 cohort will be used for open label reporting as the study progresses. The REMAIN-1 randomized cohort will enroll patients living with obesity and a body mass index (BMI) between 30 and 45 kg/m2 who are not currently on a GLP-1 drug. Patients will be prescribed tirzepatide and titrated to achieve at least 15% total body weight loss, at which time tirzepatide will be discontinued and patients will be randomized to Revita versus sham at 2:1. Midpoint Analysis of Randomized Cohort: The midpoint analysis of the randomized cohort will be performed at three months of follow-up on approximately 45 patients, allowing us to assess and report on safety and efficacy signals that could be anticipated in the pivotal analysis. These patients are distinct from those included in the pivotal analysis. Pivotal Analysis of Randomized Cohort: The pivotal analysis of the randomized cohort will be performed on approximately 315 patients (distinct from those included in the midpoint analysis) and will evaluate safety and efficacy in the first co-primary endpoint, which is weight regain from the time of tirzepatide discontinuation in Revita DMR versus sham patients at six months, with a primary objective of demonstrating a benefit of Revita DMR versus sham for weight maintenance after GLP-1 discontinuation. The second co-primary endpoint evaluates a responder rate among the Revita DMR treated group at one year to demonstrate the durability of the Revita DMR procedure for weight maintenance after discontinuation of a GLP-1-based therapy. Secondary objectives will include evaluation of the effectiveness of the Revita DMR procedure on the change in blood glucose levels, cardiovascular disease (CVD) risk factors, body composition and pre-diabetes status. All patients enrolled in the study will receive diet and lifestyle counseling.
• Participant-provided, written informed consent to participate in the study in accordance with local regulations
• Adult participants aged 21-70 years, inclusive
• Prior to tirzepatide therapy, have a BMI of ≥ 30 kg/m2 (obesity) and ≤ 45 kg/m2.
• Have achieved at least 15% weight loss on tirzepatide therapy at Visit 7 (Participants in Stage 1, who enter the study on tirzepatide, must have a documented pre-tirzepatide weight confirming they have lost at least 15% body weight on tirzepatide)
• Have a history of at least 1 self-reported, unsuccessful, dietary effort to lose body weight
• All female participants of childbearing potential must have a negative urine pregnancy test at screening and a negative urine pregnancy test at study visit 7 prior to study intervention. Postmenopausal females with amenorrhea for at least 2 years will be eligible if they are \> 50 years of age. Postmenopausal females with amenorrhea for at least 2 years, who are ≤ 50 years, must also have documented serum follicle stimulating hormone levels \> 35 mUI/mL
• Able to walk at least 400 yards (roughly the distance of a track) and climb a flight of stairs without difficulty due to either musculoskeletal injuries/diseases or cardiopulmonary diseases
• If sexually active, WOCBP must use one of the following birth control methods during the entire course of the study as specified:
‣ Intrauterine device in place for at least 3 months before the first dose of tirzepatide and throughout the study
⁃ Barrier method (condom, diaphragm) with spermicide for at least 14 days before the first dose of tirzepatide and throughout the study
⁃ Surgical sterilization of the male partner(s) (vasectomy for at least 6 months before first dose of tirzepatide) or
⁃ Hormonal contraceptives with a barrier method for at least 3 months before the first dose of tirzepatide and throughout the study