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New study seeks easier diabetes test for pregnant women after weight-loss surgery

NCT ID NCT07517406

Knowledge-focused Sponsor: Burak Deniz Aydoğdu Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether routine blood sugar tests (like fasting glucose and HbA1c) can predict gestational diabetes in pregnant women who have had bariatric surgery and cannot tolerate the standard sugary drink test. Researchers will follow 84 women throughout pregnancy to see if these simpler markers can spot diabetes and related complications. The goal is to find a safer, more comfortable way to screen this growing group of 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 84 people

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

Started

Feb 2026

Expected to finish

Dec 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

The study population consists of pregnant women aged 18-50 years with a history of bariatric surgery prior to conception who were followed at the Department of Obstetrics and Gynecology of Prof. Dr. Cemil Taşcıoğlu City Hospital. Eligible participants have documented glycemic parameters during the first and/or second trimester (including fasting plasma glucose, HbA1c, urine glucose and/or oral glucose tolerance test results) and available third trimester and/or delivery records. Only singleton pregnancies with complete clinical data are included.

Ages

18 to 50 years

Sex

Female participants only

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 * Pregnant women aged 18-50 years * Singleton pregnancy * History of bariatric surgery prior to pregnancy * Followed at Prof. Dr. Cemil Taşcıoğlu City Hospital, Department of Obstetrics and Gynecology * Availability of glycemic parameters during early pregnancy (≤14 weeks) and/or between 24 and 28 weeks of gestation (fasting plasma glucose, HbA1c, urine glucose, and/or OGTT results if tolerated) * Availability of sonographic and clinical follow-up data between 28 weeks of gestation and delivery (up to 40 weeks) Exclusion Criteria * Age \<18 years or \>50 years * Multiple pregnancy * Presence of known chronic systemic disease (e.g., pregestational diabetes or endocrine disorders) * Incomplete or missing clinical data

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Conditions

The condition(s) this trial relates to.

gestational diabetes glucose intolerance pregnancy disorder

As listed by the trial registrant

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

Gestational diabetes mellitus (GDM) History of bariatric surgery Pregnancy complications

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

  • Prof. Dr. Cemil Taşcıoğlu City Hospital

    RECRUITING

    Istanbul, Şişli, 34384, Turkey (Türkiye)

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