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Liver's Fat-Burning secrets revealed in sleeve gastrectomy study

NCT ID NCT03997422

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how the liver burns fat and makes sugar in people with NASH (a serious liver disease linked to obesity) who are planning to have weight-loss surgery. Researchers will use special scans to measure liver function before and after surgery in 30 adults. The goal is to understand why bariatric surgery improves NASH, which may lead to better treatments in the future.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

30 people

The number who actually took part.

Started

Jul 2019

Expected to finish

May 2030

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 to 67 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18 to 67 years at eligible visit * Diagnosed with NASH with a total NAS ≥ 3 including a ballooning score of at least 1, or non-NASH/NAFLD with a total NAS ≤3, or Diagnosed with T2DM or prediabetes, HbA1c\< 8% , or CAP score greater than or equal to 248 on Fibroscan * Body Mass Index (BMI) 30.0-55.0 kg/m2 at eligibility visit * Willingness to accept surgical intervention after an individual seminar session * All patients must have insurance with no exclusion for obesity related treatments or management of obesity surgery complications. This applies to all patients enrolled in the study * Expect to live or work within approximately three-hour traveling time from the study clinic for the duration of the one-year trial * Willingness to comply with the follow-up protocol and successful completion of the run-in * Written informed consent * Suitable for liver biopsy using the percutaneous approach * Vulnerable populations will not be targeted for inclusion, but those noted in section 9.1 may be allowed to participate provided they met all of the inclusion and none of the exclusion criteria. Exclusion Criteria: * Cardiovascular event (myocardial infarction, acute coronary syndrome, coronary artery angioplasty or bypass, stroke) in the past six months. * Current evidence of congestive heart failure, angina pectoris, or symptomatic peripheral vascular disease. * Cardiac stress test indicating that surgery or IMM would not be safe. * Pulmonary embolus or thrombophlebitis in the past six months * Cancer of any kind (except basal cell skin cancer or cancer in situ) unless documented to be disease-free for five years. * Significant anemia (hemoglobin 1.0 g/dL or more below normal range) or history of coagulopathy. * Serum creatinine \>1.5 mg/dL. * Serum total bilirubin greater than the upper limit of normal in the absence of Gilbert's syndrome, or alkaline phosphatase or ALT or AST greater than 2.5 the upper limit of normal. Elevated INR. * Alcohol intake more than one drink or \>20 grams per day * History of stomach surgery, bile duct surgery, pancreatic surgery, splenectomy, or colon resection. * Gastric or duodenal ulcer in the past six months. * History of intra-abdominal sepsis (except for uncomplicated appendicitis or diverticulitis more than six months prior to enrollment). * Previous organ transplantation. * Self-reported HIV-positive status, active tuberculosis, active malaria, chronic hepatitis B or C, or cirrhosis * Currently pregnant or nursing, or planning to become pregnant in the next two years. * History of alcohol, drug, or opioid dependency (excluding nicotine) in the past five years. * Active psychosocial or psychiatric problem that is likely to interfere with adherence to the protocol. * Depression A CESD score more than 17 and a psychologist determination that the patient is not a good fit for surgery. * Presence of any chronic or debilitating disease that would make adherence to the protocol difficult. * 12-lead EKG indicating that surgery would not be safe. * Serum c-peptide \<1.0 ng/ml post prandial. * Exclusions may also be made at the discretion of the attending physician or the eligibility committee. * Contraindication to MRI scanning. MRI contraindications are assessed by MR technologists on the day of scanning using a standard safety screening form. * History of endoscopy demonstrating esophagitis or Barretts changes in the esophagus. Any history of dysphagia. * Treatment with drugs associated with nonalcoholic fatty liver disease (amiodarone, methotrexate, oral glucocorticoids at doses greater than 5 mg/day, tamoxifen, estrogens at doses greater than those used for hormone replacement or contraception, anabolic steroids, valproic acid) for more than 4 weeks within the last 2 months prior to the initial screening. * Treatment with pioglitazone or high-dose vitamin E (\>400 IU/day) within the last 2 months prior to the initial screening.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • University of Minnesota

    Minneapolis, Minnesota, 55455, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.