A Feasibility Study Looking at the Use of Glibenclamide and metfoRmin Versus stAndard Care in gEstational diabeteS

NCT ID: NCT02080377

Last Updated: 2016-12-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

23 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-07-31

Study Completion Date

2016-03-31

Brief Summary

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The aim of this open label feasibility study is to determine recruitment rates to a randomised trial of glibenclamide compared with insulin (both in addition to maximum tolerated metformin) for the treatment of Gestational Diabetes Mellitus (GDM). This feasibility trial will inform the design of a future substantive multicentre trial to test the hypothesis that combination therapy with glibenclamide and metformin could reduce the number of pregnant women with GDM who require insulin and would be superior to metformin and insulin in terms of acceptability and cost effectiveness.

Women with GDM who have "failed" monotherapy with metformin will be recruited and randomised to either receive glibenclamide (test arm) or standard care with insulin, both in addition to their maximum tolerated dose of metformin. Patients will be recruited from three of the antenatal clinics.

This is a feasibility study in preparation for a large multicentre randomised trial to test the hypothesis that the addition of glibenclamide to metformin (combination therapy) could reduce the number of pregnant women with gestational diabetes mellitus requiring insulin, without compromising glycaemic control or other clinical outcomes. The investigators hypothesise that combination therapy with metformin and glibenclamide is likely to be preferable to metformin and insulin in terms of acceptability and cost.

Detailed Description

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Conditions

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Pregnancy Gestational Diabetes

Keywords

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Pregnancy Gestational diabetes Glycaemic control Metformin

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Current Standard Care

Insulin + Metformin

Group Type ACTIVE_COMPARATOR

Insulin

Intervention Type DRUG

Treatment

Glibenclamide + Metformin

Group Type ACTIVE_COMPARATOR

Glibenclamide

Intervention Type DRUG

Interventions

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Glibenclamide

Intervention Type DRUG

Insulin

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Pregnant women diagnosed with gestational diabetes who fail to achieve "adequate glycaemic control" on maximum tolerated dose metformin
* Inadequate glycaemic control is defined according to the SIGN 116 guidelines.

Exclusion Criteria

* Pregnant women requiring insulin prior to 20 weeks gestation or after 36 weeks gestation.
* Pregnant women not taking at least 500mg metformin daily.
* Patients with suspected Type 1 diabetes mellitus presenting in pregnancy.
* Women with allergies to either glibenclamide or insulin or any of their excipients.
* Women with any contraindications to sulfonylurea therapy.
* Women unable to give informed consent.
Minimum Eligible Age

16 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Chief Scientist Office of the Scottish Government

OTHER_GOV

Sponsor Role collaborator

University of Edinburgh

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jane E Norman, MD

Role: PRINCIPAL_INVESTIGATOR

University of Edinburgh

Locations

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Queen Elizabeth Hospital

Glasgow, Glasgow, United Kingdom

Site Status

Princess Royal Infirmary

Glasgow, Lanarkshire, United Kingdom

Site Status

Simpson Centre for Reproductive Health, Royal Infirmary Hospital, Edinburgh

Edinburgh, Lothian, United Kingdom

Site Status

Western General Hospital

Edinburgh, Lothian, United Kingdom

Site Status

St Johns Hospital

Livingston, West Lothian, United Kingdom

Site Status

Countries

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United Kingdom

References

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Reynolds RM, Denison FC, Juszczak E, Bell JL, Penneycard J, Strachan MWJ, Lindsay RS, Alexander CI, Love CDB, Whyte S, Mackenzie F, Stenson B, Norman JE. Glibenclamide and metfoRmin versus stAndard care in gEstational diabeteS (GRACES): a feasibility open label randomised trial. BMC Pregnancy Childbirth. 2017 Sep 22;17(1):316. doi: 10.1186/s12884-017-1505-3.

Reference Type DERIVED
PMID: 28938877 (View on PubMed)

Other Identifiers

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2013-004706-25

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

GRACES

Identifier Type: -

Identifier Source: org_study_id