CClinicalTrials.gg
CompletedNCT00994357Updated May 9, 2012

The Effect of Real-time Continuous Glucose Monitoring on Severe Complications to Pregnancy in Women With Diabetes

An interventional study of Real-time CGM and Standard care in Diabetes and Pregnancy, sponsored by University of Copenhagen. Completed. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-05-09.

Sponsored by University of Copenhagen · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
154
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of the study is to investigate the effects of Real-time Continuous Glucose Monitoring on severe complications to pregnancy in women with diabetes.

Read the detailed description

Pregnancy outcome in women with type 1 or type 2 diabetes is still significantly poorer than in the background population. The prevalence of large fat babies (LGA) is 50% in both types of diabetes, and perinatal death and preterm delivery is 4-7 times higher than in non-diabetic women. These complications are all closely related to non-optimal glycemic control in pregnancy, and improved metabolic control is crucial in our strive for improved pregnancy outcome in these patients.

In 2007, a new generation of "real-time" Continuous Glucose Monitoring (CGM) became available in Denmark. These sensors estimate tissue glucose values automatically and frequently with immediate display of the glucose level. In addition it is possible to set alarms for high and low glucose levels, and the patient can react immediately with changes in diet or insulin dose.

In this trial, 154 patients were randomized to either continuous glucose monitoring at five times in pregnancy in addition to standard care ot to unchanged standard care. The main aim is to evaluate if the use of CGM in pregnancy can reduce the prevalence of LGA from 50 to 30%, but other outcome measurements such as preterm delivery, neonatal disease, hypoglycemia, low grade inflammation and vascular dysfunction, quality of life and self- care are also recorded.

02

Conditions studied

  • Diabetes
  • Pregnancy

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Keywords

  • Real-time Continuous Glucose Monitoring
  • Macrosomia
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 154 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

University of Copenhagen is the lead sponsor of 450 studies on the registry; 61 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Pregestational diabetes, type 1 or type 2
  • Single intrauterine pregnancy
  • At least 18 years old
  • Informed consent

Exclusion criteria

Exclusion Criteria:

  • Past gestational week 14 at inclusion
  • Mental disorders
  • Language barriere
  • Gemelli
  • Diabetic nephropathy
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
154 participants (actual)

Study arms

  • Experimental
    Real-time Continuous Glucose Monitoring

    Real-time Continuous Glucose Monitoring at five times for up to 6 days during pregnancy, and during delivery, in addition to standard monitoring and treatment.

    Device: Real-time CGM

  • Active comparator
    Control group

    Standard monitoring and treatment of diabetic patients during pregnancy.

    Other: Standard care

Interventions

  • DeviceReal-time CGM

    See previous description.

  • OtherStandard care

    See text.

06

What researchers measure

Primary outcomes

  1. Prevalence of LGA in children of diabetic women.

    Time frame: Obtained shortly after birth

Secondary outcomes

  1. Metabolic control in terms of HbA1c, blood sugar measurements and the occurence of severe hypoglycemia in pregnant diabetic patients.

    Time frame: During pregnancy

  2. Quality of life, locus of control and anxiety and depression scores in pregnant diabetic patients.

    Time frame: During pregnancy

  3. Neonatal disease such as neonatal hypoglycemia, respiratory distress and the occurrence of malformations in children of diabetic mothers.

    Time frame: Shortly after birth

  4. The occurrence of low grade inflammation and endothelial dysfunction in pregnant women with diabetes.

    Time frame: During pregnancy

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Cordua S, Secher AL, Ringholm L, Damm P, Mathiesen ER. Real-time continuous glucose monitoring during labour and delivery in women with Type 1 diabetes - observations from a randomized controlled trial. Diabet Med. 2013 Nov;30(11):1374-81. doi: 10.1111/dme.12246. Epub 2013 Jul 26. PubMed 23758126 ↗
  • Secher AL, Ringholm L, Andersen HU, Damm P, Mathiesen ER. The effect of real-time continuous glucose monitoring in pregnant women with diabetes: a randomized controlled trial. Diabetes Care. 2013 Jul;36(7):1877-83. doi: 10.2337/dc12-2360. Epub 2013 Jan 24. PubMed 23349548 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 9, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00994357
Lead sponsor
University of Copenhagen
Responsible party
Anna Lilja Secher (MD, University of Copenhagen) — Principal investigator
First posted
Oct 14, 2009
Start date
Feb 2009
Primary completion
Oct 2011
Completion
May 2012
Last update
May 9, 2012

Study contacts

Elisabeth R Mathiesen, M.D.
study chair · Center for Pregnant Women with Diabetes, Copenhagen University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2012. You cannot join it, but the record below documents what was studied.

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