Clinical trial No longer in our active list Observational Ages 18 to 45 Women only

Understanding diabetes treatment in pregnant women

Official title: Towards Precision Medicine for Diabetes in Pregnancy

Run by Zuyderland Medisch Centrum · NCT05932251 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing how well metformin works for pregnant women with gestational diabetes, especially looking at those who have insulin resistance compared to those with low insulin levels.

More Gestational Diabetes trials

Quick facts

Study typeObservational
Ages18 Years to 45 Years
SexWomen only
Enrollment103 (estimated)
SponsorZuyderland Medisch Centrum
Academic / other
Locations1 site (Heerlen)
Trial IDNCT05932251 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are pregnant women diagnosed with gestational diabetes mellitus who are being treated with metformin.

Probably not a fit

Patients with pre-existing diabetes or those on medications that affect study outcomes prior to their GDM diagnosis may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to evaluate the effectiveness of metformin in treating gestational diabetes mellitus (GDM) by comparing treatment outcomes between patients with different metabolic profiles. It focuses on women diagnosed with GDM, specifically those experiencing insulin resistance versus those with low insulin secretion. The study will track various parameters, including glucose levels, insulin sensitivity, and weight gain, to better tailor treatment approaches for pregnant women with GDM. A total of 103 participants will be monitored during late pregnancy to assess the need for additional insulin treatment.

Why it matters

Potential benefit: If successful, this study could lead to more personalized and effective treatment strategies for managing gestational diabetes, improving outcomes for both mothers and babies.

How similar studies have gone: While there have been studies on gestational diabetes treatment, this approach focusing on distinct metabolic phenotypes is relatively novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* having a confirmed single, viable pregnancy past 20 weeks gestation.
* assigned to pharmacological (ie metformin) treatment for GDM.

Exclusion Criteria:

* pre-existing diabetes, hypertension (SBP \>160 mmHg \& DBP \>110 mmHg)
* using medication related to study outcomes prior to GDM diagnosis (insulin, metformin, glyburide, systemic steroids, mood stabilizers, ADHD medication)
* smoking or using recreational drugs that may affect pregnancy outcomes

Where it's running

  • Zuyderland Medisch Centrum
    Heerlen, Netherlands
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.