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Taking people in United StatesPhase 4

GDM: Insulin with or Without Metformin?

Key facts

Who runs it
University of Virginia
Where
Charlottesville, United StatesSee the site
Trial code
Status
Recruiting
Phase
Phase 4
People taking part
130 people, planned
Started
12 Dec 2024
Expected to end
1 May 2027
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Metformin + Insulin
  • Insulin
Record updated
17 January 2025

Who can take part

Age
18 years to 50 years
Sex
Women only
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 7 criteriaShow less

Who can take part

  • Provision of signed and dated informed consent form
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Pregnant female meeting diagnosis for gestational diabetes requiring medical treatment
  • Ability to take oral medication and be willing to adhere to the metformin regimen
  • Willing to take insulin if needed
  • Willing to take blood sugars 4 times per day; -

Who cannot take part

  • 1) Metformin allergy or known intolerance, known hypersensitivity to insulin 2) Severe hepatic dysfunction 3) Chronic kidney disease 4) Pregnancy with major fetal anomalies 5) Non-viable pregnancy

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 50 years old?

Where in United States

  • University of VirginiaCharlottesville, United StatesContact: Amanda UrbanTaking people

About the trial

What the trial wants to find out

This will be a randomized trial of patients with gestational diabetes who start hypoglycemic therapy with metformin but eventually require insulin. It will examine whether continuing metformin when adding insulin versus discontinuing metformin when insulin is added is beneficial. The investigators hypothesize that continuing metformin will reduce the needed insulin dosage and improve maternal and neonatal outcomes in these patients.

The 2 groups in the trial

  • Metformin + InsulinExisting treatment, for comparison

    Pregnant women with gestational diabetes who have uncontrolled blood sugar on metformin alone will be started on insulin and will stay on metformin.

  • InsulinExisting treatment, for comparison

    Pregnant women with gestational diabetes who have uncontrolled blood sugar on metformin along will be started on insulin and metformin will be discontinued.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Gestational Diabetes Treatment: Should We Continue Metformin When Starting Insulin? a Randomized Control Trial
Fit questions
Built from NCT06781775, who can take part
Record updated
17 January 2025