Condition
Gestational Diabetes Mellitus (GDM) clinical trials and research
As of November 12, 2026, Find a Trial lists 28 Gestational Diabetes Mellitus (GDM) clinical trials that are recruiting, at sites in 15 countries (most in United States (7), Austria (3), Denmark (2)). By phase: Phase 1 (1), Phase 4 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 28Clinical trials
- 15Countries
Newest Gestational Diabetes Mellitus (GDM) clinical trials
All recruiting trials (28)
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Metformin vs glyburide for blood sugar in gestational diabetes
This study tests whether metformin or glyburide better controls blood sugar in pregnant women with gestational diabetes who need oral medication.
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Quality of life and psychological factors in women with gestational diabetes
This study tests how gestational diabetes affects quality of life and stress or anxiety in pregnant women treated at a hospital in Ludhiana.
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Myo-Inositol for Glycemic Control in Gestational Diabetes
This study tests whether taking myo-inositol with folic acid can improve blood sugar control and reduce inflammation in pregnant people with gestational diabetes.
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Daily kefir during mid-pregnancy to see if it helps prevent gestational diabetes
Pregnant people will drink kefir daily from mid-pregnancy to see if it improves blood sugar and insulin, reduces gestational diabetes risk, and positively affects gut bacteria.
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Protective effect of lactation on gestational diabetes in a future pregnancy
This observational study tests whether lactation around the time of a first pregnancy is linked to a lower risk of gestational diabetes in a subsequent pregnancy for women who conceive while lactating.
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Natural cervical ripening to delay pharmacological induction of labor
This pilot study tests whether nipple stimulation and membrane sweeping can help some pregnant people go into labor on their own without needing drugs.
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Maternal insulin and fat metabolism in pregnancies at risk for preeclampsia and gestational diabetes
This project will try to see if insulin resistance and how the body burns fats early in pregnancy predict later preeclampsia or gestational diabetes in people at higher risk.
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Leg vs Arm Ergometer Exercise for Gestational Diabetes
This study tests whether leg-ergometer exercise helps control blood sugar and reduce stress more than arm-ergometer exercise in pregnant people with gestational diabetes.
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Using routine blood and urine sugar tests to predict gestational diabetes after bariatric surgery
This project will test whether routine fasting and post-meal blood glucose, HbA1c, and urine glucose can help find gestational diabetes in pregnant women who previously had bariatric surgery.
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Postpartum blood sugar screening after gestational diabetes
This study will test whether WhatsApp reminders help women who had gestational diabetes attend a 75g OGTT at 6–12 weeks postpartum and whether the 1-hour glucose measure detects more cases of dysglycemia than the 2-hour measure.
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How the placenta affects maternal and fetal health
This project will test whether tiny particles released by the placenta differ in pregnancies with pre-eclampsia, gestational diabetes, or fetal growth restriction compared with healthy pregnancies and non-pregnant women.
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Gestational diabetes and health outcomes for mothers and babies
This project will follow pregnant women with gestational diabetes to see how the condition affects mothers and their babies during pregnancy, delivery, and early postpartum.
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Pilot testing daily fermented poi to improve the maternal microbiome and lower gestational diabetes risk
This pilot will test whether eating one pound of fermented poi daily for four weeks can change the maternal microbiome and lower gestational diabetes risk for pregnant people in mid-pregnancy.
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Parental metabolism's imprint on the fetal epigenome in gestational diabetes
We will see if parents' metabolism during pregnancy is linked to epigenetic changes in the fetus in pregnancies with and without gestational diabetes.
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MyGlucoCare: A Smartphone App to Help Women with Gestational Diabetes
This pilot test checks if the MyGlucoCare app is usable and helps women with gestational diabetes manage their blood sugar and well-being.
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Insulin resistance and continuous glucose patterns in gestational diabetes
This project will use 14 days of continuous glucose monitoring to see if glucose swings in pregnant women with gestational diabetes relate to fetal growth and short-term maternal and newborn outcomes.
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Pregnancy and postpartum breastfeeding support for people with gestational diabetes
This project will try a co-designed breastfeeding support program for pregnant and postpartum people with gestational diabetes to help lower their future risk of type 2 diabetes.
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Long-term follow-up of endocrine and metabolic changes after gestational diabetes
This project will follow women who had gestational diabetes and their children to see if pregnancy and early-life measurements predict later chronic diseases.
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Home visiting support with medically tailored meals to prevent diabetes after gestational diabetes
This project will test whether adding medically tailored meals to enhanced lifestyle support delivered through home visiting helps pregnant or recently pregnant adults with recent gestational diabetes avoid diabetes or prediabetes in the year after birth.
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Using probiotics to prevent gestational diabetes in pregnant women
This study is testing if taking probiotics can help prevent gestational diabetes in pregnant women who are at high risk.
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How gestational diabetes affects brain blood flow after pregnancy
This study will test whether a past diagnosis of gestational diabetes changes brain blood flow and blood-vessel function in women within five years after giving birth.
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Food order and after-meal blood sugar in gestational diabetes
This tests whether eating protein and fat before carbohydrates lowers after-meal blood sugar in pregnant women with gestational diabetes.
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Muscle loss in pregnant women with gestational diabetes.
This project will test whether pregnant women with gestational diabetes show signs of muscle loss (sarcopenia) and whether those muscle measures relate to pregnancy outcomes and thinking skills.
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Impact of fiber on medication needs in gestational diabetes
This study is testing if taking fiber supplements can help women with gestational diabetes need less medication during their pregnancy.
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Continuous glucose monitoring to diagnose gestational diabetes
A continuous glucose monitor will be tried to see if it can diagnose gestational diabetes in pregnant people between 24 and 32 weeks who receive prenatal care at Mount Sinai.
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Study on how birth practices affect breastfeeding
This study looks at how different birth methods and conditions affect how long new moms can exclusively breastfeed their babies in the first three months after birth.
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Investigating the effects of breast milk from mothers with metabolic diseases on infant health after dietary changes
This study is testing how changes in the diet of mothers with gestational diabetes or obesity affect the breast milk they produce and whether that impacts their infants' health, particularly regarding infections and development.
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Comparing induction of labor versus expectant management for gestational diabetes
This study is testing if inducing labor at 38 weeks for people with gestational diabetes can lower the chances of serious complications for their babies compared to waiting for labor to start on its own.
Related topics
Quick answers
How many Gestational Diabetes Mellitus (GDM) clinical trials are recruiting right now?
28, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 15 countries. The most sites are in United States (7 trials), Austria (3 trials), Denmark (2 trials), United Kingdom (2 trials), Canada (2 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1: 1, Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.