RCT Metformin for Reduction of Gestational Diabetes Mellitus Effects
NCT ID: NCT02980276
Last Updated: 2025-03-17
Study Results
Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.
View full resultsBasic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
PHASE3
535 participants
INTERVENTIONAL
2017-06-06
2023-04-13
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Preventing Recurrent Gestational Diabetes With Metformin
NCT02394158
MeDiGes Study: Metformine Use in Gestational Diabetes
NCT04222348
Metabolic Analysis for Treatment Choice in Gestational Diabetes Mellitus
NCT03029702
Medico-GDM Trial - Metformine to Prevent Gestational Diabetes Mellitus
NCT02275845
Effectiveness of Metformin Compared to Insulin in Pregnant Women With Mild Preexisting or Early Gestational Diabetes
NCT00835861
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Treatment
Participants randomised to the treatment arm will receive active metformin in addition to standard care. Metformin tablets will be titrated according to a dosing schedule to achieve the pre-specified glucose targets. Tablets will be in 500mg doses and will commence at 1 tablet per day (500mg) increasing to a maximum of 5 tablets per day (2500mg).
Metformin Hydrochloride
Women randomised to the metformin group will receive metformin 500mg once daily, with the dose titrated upwards every 2 days over 10 days increasing to a maximum of 2500mg Metformin daily (5 tablets) or maximum tolerated dose, in addition to usual care (exercise and MNT), and taken until delivery.
Control
Participants randomised to the placebo arm will receive placebo in addition to standard care. Placebo will be titrated according to the dosing schedule to achieve the pre-specified glucose targets. Placebo tablets will commence at 1 tablet per day and will be increased to a maximum of 5 tablets per day over 10 days as with the treatment group.
Placebo
Women randomised to the placebo group will receive 1 placebo tablet once daily, with the dose titrated upwards every 2 days over 10 days increasing to a maximum of five placebo tablets daily, in addition to usual care (exercise and MNT), and taken until delivery.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Metformin Hydrochloride
Women randomised to the metformin group will receive metformin 500mg once daily, with the dose titrated upwards every 2 days over 10 days increasing to a maximum of 2500mg Metformin daily (5 tablets) or maximum tolerated dose, in addition to usual care (exercise and MNT), and taken until delivery.
Placebo
Women randomised to the placebo group will receive 1 placebo tablet once daily, with the dose titrated upwards every 2 days over 10 days increasing to a maximum of five placebo tablets daily, in addition to usual care (exercise and MNT), and taken until delivery.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. Participants aged 18-50
3. Pregnancy gestation up to 28 weeks (+ 6 days) confirmed by positive pregnancy test
4. Singleton pregnancy as determined by scan
5. Positive diagnosis of Gestational Diabetes Mellitus on a Oral Glucose Tolerance Test (OGTT) according to the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) criteria if any one of the following are achieved: i) Fasting glucose \>/= 5.1mmol/l and \<7mmol/l, or ii) 1 hour post glucose load of \>/=10mmol/l, or iii) 2 hour post glucose load of \>/=8.5 mmol/l and \<11.1mmo/l
6. Resident in the locality and intending to deliver within the trial site
Exclusion Criteria
2. Participants with a fasting glucose \> 7mmol/l or a 2h value \> 11.1 mmol/l
3. Multiple pregnancies (twins, triplets etc.) as determined by scan
4. Known intolerance to metformin
5. Known contraindication to the use of metformin which include: i) renal insufficiency (defined as serum creatinine of greater than 130 µmol/L or creatinine clearance \<60 ml/min), ii) moderate to severe liver dysfunction (aspartate aminotransferase (AST) and alanine aminotransferase (ALT) greater than 3 times the upper limit of normal, iii) shock or sepsis, and iv) previous hypersensitivity to metformin
6. Major congenital malformations or an abnormally deemed unsuitable for metformin by the site PI or attending consultant
7. Known small for gestational age (Small for gestational age (SGA) refers to foetal growth less than the 10th percentile (RCOG, 2014), or if foetal growth is deemed unsatisfactory by the treating obstetrician)
8. Known gestational hypertension or pre-eclampsia or ruptured membranes
9. Participants who have a history of drug or alcohol use that, in the opinion of the investigator, would interfere with adherence to study requirements
10. Participants with significant gastrointestinal problems such as severe vomiting, Crohn's disease or colitis which will inadvertently affect absorption of the study drug
11. Participants with congestive heart failure or history of congestive heart failure
12. Participants with serious mental illness which would affect adherence to study medication or compliance with study protocol in the opinion of the investigator
13. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption
18 Years
50 Years
FEMALE
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Health Research Board, Ireland
OTHER
HRB Clinical Research Facility Galway
OTHER
University College Hospital Galway
OTHER
Portiuncula University Hospital
UNKNOWN
University Hospital of Limerick
OTHER
University Maternity Hospital Limerick
UNKNOWN
Clinical Research Support Unit, University of Limerick
UNKNOWN
National University of Ireland, Galway, Ireland
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Fidelma Dunne
Prof. Fidelma Dunne
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Prof. Fidelma Dunne
Role: PRINCIPAL_INVESTIGATOR
National University of Ireland, Galway, Ireland
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Portiuncula University Hospital
Ballinasloe, Galway, Ireland
University Hospital Galway
Galway, , Ireland
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Dunne F, Newman C, Alvarez-Iglesias A, O'Shea P, Devane D, Gillespie P, Egan A, O'Donnell M, Smyth A. Metformin and small for gestational age babies: findings of a randomised placebo-controlled clinical trial of metformin in gestational diabetes (EMERGE). Diabetologia. 2024 Dec;67(12):2660-2666. doi: 10.1007/s00125-024-06252-y. Epub 2024 Aug 31.
Dunne F, Newman C, Alvarez-Iglesias A, Ferguson J, Smyth A, Browne M, O'Shea P, Devane D, Gillespie P, Bogdanet D, Kgosidialwa O, Egan A, Finn Y, Gaffney G, Khattak A, O'Keeffe D, Liew A, O'Donnell M. Early Metformin in Gestational Diabetes: A Randomized Clinical Trial. JAMA. 2023 Oct 24;330(16):1547-1556. doi: 10.1001/jama.2023.19869.
Dunne F, Newman C, Devane D, Smyth A, Alvarez-Iglesias A, Gillespie P, Browne M, O'Donnell M. A randomised placebo-controlled trial of the effectiveness of early metformin in addition to usual care in the reduction of gestational diabetes mellitus effects (EMERGE): study protocol. Trials. 2022 Sep 21;23(1):795. doi: 10.1186/s13063-022-06694-y.
Provided Documents
Download supplemental materials such as informed consent forms, study protocols, or participant manuals.
Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
NUIG-2016-01
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.