Evidence mapPaperPMID 29973490Full record

ReviewInternational journal of molecular sciences2018

Metformin in Pregnancy: Mechanisms and Clinical Applications.

Steve Hyer, Jyoti Balani, Hassan Shehata

Registry-linked trialOpen access · goldFull text readReview
In one paragraph

Review in International journal of molecular sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05554679 (Maternal and Fetal Outcome With Metformin Therapy for Obese Pregnant Women a Randomized Control Trial.), which is not on this map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05554679 phase4terminatedstarted 2021, after this paper: background citation

Maternal and Fetal Outcome With Metformin Therapy for Obese Pregnant Women a Randomized Control Trial.

Ran2021Enrolled178Registered outcomes2Posted comparisons0ConditionsMetformin for Obese Pregnant WomenArmsMetformin
Open the trial in the graph
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Role of Metformin in Preeclampsia: A Systematic Review.Journal of obstetrics and gynaecology of India · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Steve HyerDepartment of Endocrinology, Epsom and St. Helier University Hospitals NHS Trust, Wrythe Lane, Carshalton SM5 1AA, Surrey, UK. steve.hyer@nhs.net.
Jyoti BalaniDepartment of Endocrinology, Epsom and St. Helier University Hospitals NHS Trust, Wrythe Lane, Carshalton SM5 1AA, Surrey, UK. jyoti.balani@nhs.net.
Hassan ShehataDepartment of Maternal Medicine, Epsom and St. Helier University Hospitals NHS Trust, Wrythe Lane, Carshalton SM5 1AA, Surrey, UK. hassan.shehata@nhs.net.
Epsom and St Helier University Hospitals NHS Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metformin use in pregnancy is increasing worldwide as randomised controlled trial (RCT) evidence is emerging demonstrating its safety and efficacy. The Metformin in Gestational Diabetes (MiG) RCT changed practice in many countries demonstrating that metformin had similar pregnancy outcomes to insulin therapy with less maternal weight gain and a high degree of patient acceptability. A multicentre RCT is currently assessing the addition of metformin to insulin in pregnant women with type 2 diabetes. RCT evidence is also available for the use of metformin in pregnancy for women with Polycystic Ovarian Syndrome and for nondiabetic women with obesity. No evidence of an increase in congenital malformations or miscarriages has been observed even when metformin is started before pregnancy and continued to term. Body composition and metabolic outcomes at two, seven, and nine years have now been reported for the offspring of mothers treated in the MiG study. In this review, we will briefly discuss the action of metformin and then consider the evidence from the key clinical trials.

Indexed as

AdultAnimalsChildDiabetes, GestationalDiabetes Mellitus, Type 2FemaleHumansInsulinMetforminMiceMulticenter Studies as TopicObesityPolycystic Ovary SyndromePregnancyRandomized Controlled Trials as TopicInsulinMetformingestational diabetesmetforminobesitypolycystic ovarian syndromepregnancytype 2 diabetes

Identifiers

PMID29973490
PMCPMC6073429
OpenAlexW2806638867

What Socratic holds

Textfull text, public
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.