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1500-Patient study reveals secrets of diabetes reversal after Weight-Loss surgery

NCT ID NCT07451938

Knowledge-focused Sponsor: China-Japan Friendship Hospital 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 1500 people with obesity (BMI 25 or higher) to find out what helps diabetes go away and other health issues improve after weight-loss surgery. Researchers collected health data before and after surgery, including weight, blood sugar, and quality of life. The goal was to learn which factors lead to the best outcomes, not to test a new treatment.

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

1,500 people

The number who actually took part.

Started

Jul 2017

Finished

Jul 2025

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

Obese patients treated with bariatric surgery or non-bariatric surgery(diet, exercise and weight loss drugs)

Ages

12 to 75 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: 1. Age range from 12 to 75 years, 2. BMI (Body Mass Index) ≥ 25.0 kg/m2, Exclusion Criteria: 1. Type 1 diabetes, 2. Severe liver or kidney disease (eGFR \< 30 ml/min), malignant tumors, endocrine disorders such as thyroid or Cushing's syndrome, acute coronary syndrome, uncontrolled heart failure, pregnancy or lactation, pancreatitis, 3. Contraindications to other surgeries or medications.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder type 2 diabetes mellitus

As listed by the trial registrant

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

Bariatric surgery Diabete type 2 Obesity

Contacts and locations

Locations

  • China-Japan Friendship Hospital

    Beijing, China

More trials for these conditions

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