A Study of Endoscopic Sleeve Gastroplasty for Obesity in Ulcerative Colitis

August 4, 2026 updated by: Amanda M. Johnson, Mayo Clinic

Endoscopic Sleeve Gastroplasty (ESG) as a Treatment Option for Obesity in Ulcerative Colitis (UC) Patients Undergoing Colectomy With Ileal Pouch Anal Anastomosis (IPAA)

The purpose of this research is to gather information on the safety and effectiveness of Endoscopic Sleeve Gastroplasty (ESG) for weight loss in a population of obese UC patients undergoing colectomy with eventual IPAA.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
2

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic Minnesota

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

22 years to 69 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • BMI 30-50 kg/m2 for at least 6 months prior to ESG
  • Diagnosis of UC with plans to undergo or who have already undergone colectomy as part of a plan to pursue eventual 3-stage ileal pouch anal anastomosis (IPAA)
  • Willing to adhere to the diet and behavior modifications required for ESG
  • Able to follow the visit schedule
  • Able to provide informed consent
  • If female, be either post-menopausal, surgically sterile, or agree to practice birth control during year of study and have negative serum Human Chorionic Gonadotropin (HCG) at screening/baseline

Exclusion Criteria:

  • Prior gastric or bariatric surgery or other alteration to upper gastrointestinal anatomy which would preclude safe or technical performance of ESG
  • Current or recent (last six months) gastric or duodenal ulceration
  • Esophageal or gastric varices
  • Significant motility disorder of the esophagus or stomach
  • Large hiatal hernia measuring >5 cm or ≤ 5 cm and associated with severe gastroesophageal reflux
  • Severe coagulopathy, hepatic insufficiency, or cirrhosis
  • Gastric mass
  • Presence of any other medical condition which precludes safe performance of elective endoscopy such as poor general health and/or history of severe hepatic, cardiac, or pulmonary disease
  • Serious or uncontrolled psychiatric illness which may compromise patient understanding of procedure or compliance with follow-up visits
  • Unwilling to participate in an established diet and behavior modification program, with routine follow-up
  • Ongoing corticosteroid use at a dose of >5 mg daily
  • Daily use of anti-inflammatory agents such as non-steroidal medications, or anticoagulants without medical supervision
  • Alcohol or drug addiction
  • Females who are pregnant, nursing, or planning pregnancy within the next year
  • Concomitant use of or unwillingness to avoid any use of weight loss medications, weight loss supplements, or weight loss herbal preparations
  • Has a condition or is in a situation which in the investigator's opinion may put the subject at significant risk or may interfere significantly with the subject's participation in the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Endoscopic Sleeve Gastroplasty (ESG)
Participants undergo Endoscopic Sleeve Gastroplasty (ESG). Following the 6-week transitional diet after undergoing the ESG procedure, participants will start the lifestyle intervention.
Device: Apollo Endoscopic Suture System
Endoscopic Sleeve Gastroplasty (ESG), and endoscopic minimally-invasive weight loss procedure, utilizing a suturing device to reduce the stomach volume by 70-80% through the creation of sleeve. This is accomplished by a series of endoscopically placed stitches through the stomach wall.
Behavioral: Lifestyle Intervention
Low-calorie healthy diet personalized by a dietician according to individual patients' needs and conducive to weight loss. Physical activity will be encourage and assessed.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percent Total Body Weight Loss
Time Frame: 6 months
Percent total body weight loss (%TBWL) calculated by the equation ((baseline screening weight in kilograms (kg) subtracted by follow-up weight in kg) divided by baseline screening weight in kg) times 100.
6 months
Number of Subjects With Serious Adverse Events
Time Frame: 24 months
Total number of subjects to report serious adverse event related to the ESG procedure
24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Early Peri-operative Complications
Time Frame: 1 year following procedure
Number of early (less than 30 days) peri-operative complications related to IPAA and ileostomy takedown clinical standard of care procedure
1 year following procedure
Number of Late Peri-operative Complications
Time Frame: 1 year following procedure
Number of late (greater than 30 days) peri-operative complications related to IPAA and ileostomy takedown clinical standard of care procedure
1 year following procedure
Change Gastrointestinal Symptom Rating Scale (GSRS)
Time Frame: Week 4, Week 12, Week 24, 12 months post-ileostomy takedown
ESG tolerance measured by GSRS which includes 15 items and utilizes a 7-point response scale to measure a participant's level of discomfort associated with a given GI symptom, ranging from "No discomfort at all" to "Very severe discomfort."
Week 4, Week 12, Week 24, 12 months post-ileostomy takedown
Modified Pouchitis Disease Activity Index (mPDAI)
Time Frame: 12 months post-ileostomy takedown
Assess overall pouch function one year following ileostomy takedown using the modified pouchitis disease activity index (mPDAI) score. The mPDAI quantitates clinical symptoms and endoscopic features (edema, granularity, friability, loss of vascular pattern, mucus exudate, and ulceration) on several separate 0-2 point scores, whereby a total score greater than or equal to 5 is indicative of pouchitis.
12 months post-ileostomy takedown
Durable Weight Loss
Time Frame: 12 months and 12 months post-ileostomy takedown
Number of subjects to achieve durable weight loss
12 months and 12 months post-ileostomy takedown

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Mayo Clinic

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Amanda M Johnson, MD, Mayo Clinic

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 20, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 13, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 13, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 22, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 6, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 4, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 22-007643

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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