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Muscle loss after Weight-Loss surgery: a closer look

NCT ID NCT07717333

Knowledge-focused Sponsor: Hatice Zehra FERHATLAR Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This study follows 80 adults before and after bariatric surgery to see how their muscle mass, strength, and physical function change over time. Researchers use ultrasound to measure thigh muscle thickness and simple tests like handgrip strength and walking speed. The goal is to better understand the risk of sarcopenia—age-related muscle loss—in people undergoing rapid weight loss from surgery.

What this could mean

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

What this could lead to
If successful, this study could help doctors identify patients at risk of muscle loss after bariatric surgery and guide better post-surgery care.
What could go wrong
This is an observational study, not a treatment trial, so it will not test any intervention. Results may not apply to all bariatric surgery patients.

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 80 people

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

Started

Apr 2026

Expected to finish

Jun 2027

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 scheduled to undergo bariatric surgery at the study center will be included in this prospective observational study. Participants will be evaluated before surgery and during postoperative follow-up visits to assess longitudinal changes in muscle thickness, muscle strength, and physical performance related to sarcopenia.

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 years and older * Patients scheduled to undergo bariatric surgery * Ability to participate in physical performance tests * Ability to provide written informed consent Exclusion Criteria: * Presence of neurological or musculoskeletal disorders affecting muscle strength or physical performance * Severe cardiopulmonary disease limiting physical activity * Active malignancy * Pregnancy * Inability to complete study assessments * Refusal to participate in the study

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Sarcopenia

As listed by the trial registrant

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

Bariatric surgery Obesity Sarcopenia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Kanuni Sultan Suleyman Education and Research Hospital

    RECRUITING

    Istanbul, KÜÇÜKÇEKMECE, 34307, Turkey (Türkiye)

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