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Second chance at weight loss: small study tracks outcomes after repeat bariatric surgery

NCT ID NCT07345429

Knowledge-focused Sponsor: Medipol University Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 14 adults who had a second weight-loss surgery (conversion bariatric surgery) because they didn't lose enough weight or regained weight after their first surgery. Researchers will measure changes in weight, body fat, muscle, and blood tests over one year. The goal is to learn how to better support patients after this type of repeat surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
conversion bariatric surgery (a second weight-loss surgery procedure)
What this could lead to
If successful, this could provide doctors with better guidelines for follow-up care and nutrition after conversion bariatric surgery.
What could go wrong
This is a very small study (14 people) with no comparison group, so results may not apply to everyone. It only observes outcomes, so it cannot prove the surgery works better than other options.

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.

Participants

About 14 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2024

Expected to finish

Feb 2026

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.

Who is studied

Adult patients aged 18-65 years who had previously undergone bariatric surgery and subsequently received conversion bariatric surgery due to suboptimal clinical response, defined as suboptimal weight loss or recurrent weight gain. Participants are followed in routine clinical practice and evaluated preoperatively and at postoperative 1 year for anthropometric, biochemical, nutritional, and physical activity outcomes.

Ages

18 to 65 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: * Adults aged 18-45 years * Previously underwent bariatric surgery * Subsequently underwent conversion bariatric surgery due to suboptimal clinical response Suboptimal clinical response defined as either: * Suboptimal Clinical Response (SCR): maximum total weight loss (TWL%) of \<20% within 18 months after metabolic and bariatric surgery * Recurrent Weight Gain (RWG): regaining \>30% of initial postoperative weight loss after achieving initial weight reduction Exclusion Criteria: * Pregnancy or lactation * Presence of acute illness or infection * Comorbid conditions that could limit treatment efficacy or compromise safety * Participation in professional athletic activity

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

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

Bariatric surgery Obesity & overweight Revisional bariatric surgery

Contacts and locations

Locations

  • Mudanya Univesity

    Osmangazi, Bursa, 16160, Turkey (Türkiye)

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