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Bone loss after Weight-Loss surgery: could a simple pill help?

NCT ID NCT04922333

Disease control Sponsor: Wake Forest University Health Sciences 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a monthly pill called risedronate can reduce bone and muscle loss after sleeve gastrectomy, a common weight-loss surgery. About 200 adults who have had the surgery will take either risedronate or a placebo for 6 months and be followed for a year. The goal is to see if this FDA-approved osteoporosis drug can protect bone health in this specific situation.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 200 people

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

Started

Mar 2023

Expected to finish

Apr 2028

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

30 years and older

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: * Subjects who have had sleeve gastrectomy * Willing to provide informed consent * Agree to all study procedures and assessments. Exclusion Criteria: * Weight greater than 450 lbs * Regular use of growth hormones, oral steroids, or prescription osteoporosis medications; * Known allergies to bisphosphonates * Unstable gastric reflux requiring two or more additional doses per month of anti-reflux medication. * Current participation in other research study * Unable to provide own transportation to study visits * Unable to position on scanner independently.

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Conditions

The condition(s) this trial relates to.

Bone Diseases, Metabolic osteoporosis

As listed by the trial registrant

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

Bone loss

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

  • Wake Forest School of Medicine

    RECRUITING

    Winston-Salem, North Carolina, 27157, United States

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