An interventional study of Revita Duodenal Mucosal Resurfacing (DMR) and Sham in Obesity, Weight Change Trajectory and Weight Change, Body, sponsored by Fractyl Health Inc.. Active, not recruiting at 32 sites in United States. Open to participants aged 21 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-03-03.
Sponsored by Fractyl Health Inc. · Not applicable, Interventional, and Prevention
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.
Title 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 Who Have Achieved at Least 15% Weight Loss on GLP-1 Based Pharmacotherapy (REMAIN-1)
Short Title Revita® Duodenal Mucosal Resurfacing for Weight Maintenance (REMAIN-1)
Protocol Number C-00700 Study Population Male and non-pregnant non-lactating females aged 21 -70 years, who do not have type 1 or type 2 diabetes mellitus, and with a body mass index (BMI) ≥ 30 kg/m2 Trial Design Study C-00700 is a multi-Stage study which may be conducted in parallel.
Stage 1 is an open-label training Stage enrolling participants already on GLP-1 based therapy (prior to study enrollment) with at least 15% total body weight loss (TBWL) since initiation of the GLP-1 based drug. Those participants who lost at least 15% total body weight on the GLP-1 based drug and wish to discontinue the use, will be eligible to receive Revita DMR procedure.
An open-label training Stage (Stage 1) will require treating endoscopy sites without prior experience with Revita DMR to perform DMR in up to 4 participants per site prior to treating any participant in the randomization Stage (Stage 2) to ensure consistency of study procedures prior to initiating randomization. Sites with prior Revita DMR training and experience may, but are not required to, enroll participants from this stage in parallel to Stage 2.
Stage 2 is a randomized, double-blind, sham-controlled trial that will investigate the impact of Revita® Duodenal Mucosal Resurfacing (DMR), compared with a sham endoscopic procedure, on the maintenance of body weight loss in participants with obesity (BMI ≥ 30 kg/m2). Eligible participants will receive an open-label, tirzepatide run-in, dose-escalation period of approximately 16-26 weeks duration. Those participants who lose at least 15% total body weight during the tirzepatide run-in treatment period will subsequently discontinue tirzepatide and be randomized to either Revita DMR or a sham procedure.
Randomization at the end of the tirzepatide run-in period for eligible participants will be stratified by sex (male, female) and Baseline BMI (\<30 or ≥30 kg/m2).
Stage 2 will consist of two independent Stage parts, Stage 2a and Stage 2b, which will enroll sequentially. Both Stages will enroll, randomize, treat, and follow-up participants in the same manner (DMR vs Sham, 2:1, double blind).
Phase Pivotal
Sites/Facilities Multicenter trial with up to 35 Revita treatment centers with experience in advanced endoscopy procedures in the United States
Study Intervention and Sham The Revita® System is an endoscopic treatment consisting of a single catheter and console designed to lift the duodenal mucosa with saline followed by controlled circumferential hydrothermal ablation of the mucosa.
The sham procedure consists of placing the Revita® Catheter into the duodenum for a minimum of 30 minutes with no manipulation of the device or activation of the catheter.
Number of Participants Approximately 865 participants will be screened for the entire study.
Stage 1 (Open-label). Approximately 175 participants will be screened, and up to 100 participants will be treated with Revita DMR.
Stage 2 (Randomized). For Stage 2a, approximately 90 participants will be screened, and approximately 60 participants will be enrolled into the tirzepatide run-in treatment period to successfully randomize approximately 45 participants with a range of 30-60 to DMR or sham in a 2:1 ratio. For Stage 2b, approximately 600 participants will be screened, and approximately 400 participants will be enrolled into the tirzepatide run-in treatment period to successfully randomize approximately 315 participants in a 2:1 DMR (n=210) or sham (n=105) treatment ratio. An upper limit of 75% enrollment of females will be used to ensure a sufficiently large sample of men. No more than 20% of total number of randomized subjects will be treated at any single site.
Study Duration The total estimated time from open enrollment until completion of data analyses is 128 weeks.
Participant Study Duration Stage 1 (Open-Label)
The total participant study duration is approximately 54 weeks in Stage 1 of the study with the following study periods:
A run-in period:
Visit 7 (baseline visit): Eligible participants will advance from study visit 1 (screening) immediately to study visit 7 at which time their GLP-1 based drug will be discontinued.
Visit 8 (study intervention): Participants will have study intervention (visit 8) one week after GLP-based drug discontinuation.
For these participants, total participant study duration is approximately 54 weeks.
Stage 2 (Randomized)
The total participant study duration is approximately 68-78 weeks with the following study periods:
A tirzepatide run-in dose-escalation period (approximately 16-26 weeks) during which time (and until) participants successfully achieve at least 15% body weight loss.
The study intervention and post-study intervention period (52 weeks): An endoscopic evaluation will first be performed to confirm participant eligibility. Immediately following confirmation of participant eligibility, participants will be randomized to receive either the DMR or sham intervention. The endoscopy evaluation and study intervention will take place during the same endoscopy session. Post-study intervention follow up will occur in a blinded manner until 52 weeks after intervention.
11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.
This study's planned enrollment of 315 is above the median of 67 across 9,006 interventional studies indexed under Obesity.
Browse Obesity studies →Fractyl Health Inc. is the lead sponsor of 7 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
If sexually active, WOCBP must use one of the following methods during the entire course of the study as specified:
Exclusion Criteria:
Have history of use of marijuana or tetrahydrocannabinol (THC)-containing products within 3 months of screening or unwillingness to abstain from marijuana or THC-containing products use during the study
Diabetes-related conditions:
> 6.5% or fasting glucose > 125 mg/dL consistent with T2D diagnosis according to the American Diabetes Association Standards of Care 2024 (Participants with isolated impaired fasting glucose [100 to 125 mg/dL, inclusive] may enroll in the study)
Laboratory values or clinical abnormalities:
Unstable symptomatic or life-threatening arrhythmia or heart block. Note: Asymptomatic atrial fibrillation is not considered to be life-threatening, and patients with asymptomatic atrial fibrillation will be permitted to enter the study
Related to other concomitant conditions or medical history:
History of COVID infection with prolonged symptoms for >4 weeks
Related to past or current medication use:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Relapsed and refractory
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Sites will gain experience with the study protocol and the Revita DMR procedure in an open-label, single-arm treatment assignment for participants who previously achieved 15% weight loss using a GLP-1
Device: Revita Duodenal Mucosal Resurfacing (DMR)
Patients who have achieved \>15% weight loss from baseline will receive the Revita DMR Procedure
Device: Revita Duodenal Mucosal Resurfacing (DMR)
Patients who have achieved \>15% weight loss from baseline will receive and endoscopic evaluation and will have a catheter introduced but the Revita DMR procedure will not be performed
Device: Sham
DMR is designed to ablate and re-epithelialize the duodenal mucosal surface, thus allowing nutrients to be exposed to a newly regrown and potentially normalized local mucosa. This implies that the duodenal mucosa surface is abnormal in participants associated with metabolic disorders. The Revita DMR procedure is performed endoscopically with supporting fluoroscopy.
An endoscopic review with non active catheter introduction
This study also gives Tirzepatide. No intervention listed here names it: that was found by reading the record.
To demonstrate that Revita DMR is superior to sham in percent change in body weight from baseline to week 26
Percent change in total body weight from baseline to week 26, DMR vs sham
Time frame: 26 Weeks
To demonstrate that a majority of Revita DMR participants maintain clinically significant weight loss 52 weeks (1 year) after discontinuing tirzepatide therapy
Percentage of DMR participants who maintain at least 5% total body weight loss from pre-tirzepatide (week -21) to week 52
Time frame: 52 weeks
To demonstrate durability of DMR
Of patients who maintain at least 5% total body weight loss from baseline at week 26, percentage of patients who maintain at least 5% total body weight loss at week 52.
Time frame: 26 & 52 weeks
To demonstrate DMR in comparison to sham in change from baseline for total body weight change
Percent change in total body weight from baseline to week 52, DMR vs sham
Time frame: 52 Weeks
To demonstrate DMR in comparison to sham in change from baseline for fating C-peptide
Changes from baseline to week 26 and week 52 in fasting C-peptide (nmol/L) (for the entire population and for the subset population with pre-diabetes\* at baseline), DMR vs sham
Time frame: 26 & 52 Weeks
To demonstrate DMR in comparison to sham in change from baseline for metabolic health
Changes from baseline to week 26 and week 52 in fasting glucose (mg/dL), fasting insulin (pmol/L), and HbA1c (%) (for the entire population at week 52 only and for the subset population with pre-diabetes\* at baseline), DMR vs sham
Time frame: 26 & 52 Weeks
To evaluate dimensions of upper gastrointestinal distress throughout the study (tirzepatide open-label run in vs. after randomization)
Changes in Rhodes Index of Nausea and Vomiting score from pre-tirzepatide (week -21) to baseline (visit 7) compared to changes from DMR (visit 8) to week 26 and week 52
Time frame: 26 & 52 Weeks
Plan to share: No
No publications or documents are linked to this record.
Started Sep 2024 (actual). Primary completion is estimated for Feb 2027, 29 months after the start.
Of 163 industry-sponsored interventional studies with no phase under Obesity, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 27. This study's planned 29 months is above that.
Counting every sponsor, half of 3,843 studies reached it within 22 months; a quarter within 10 and three quarters within 42.
How these figures are worked out, and which studies are left out of them.
This study is active, not recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
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Fractyl Health Inc.