Blood Glucose in Pregnant Non-diabetic Women During Treatment With Betamethasone for Fetal Lung Maturation

NCT ID: NCT06794307

Last Updated: 2025-01-27

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

RECRUITING

Total Enrollment

25 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-11-20

Study Completion Date

2026-01-31

Brief Summary

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In case of threatening preterm birth, it is standard to recommend treatment with betamethasone to accelerate fetal lung maturation. In pregnant women with diabetes, treatment with betamethasone can lead to significant hyperglycemia, which may cause hypoglycemia in the neonate. Changes in blood glucose in non-diabetic women are less investigated. In this study we aim to examine changes in maternal blood glucose levels in non-diabetic women, during treatment with betamethasone, by continuous glucose monitoring.

Hypotheses:

Administration of betamethasone induce significant hyperglycemia in non-diabetic pregnant women during treatment.

Detailed Description

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Antenatal corticosteroid administration is an important treatment to reduce the incidence of neonatal respiratory distress syndrome, and improve neonatal outcomes of babies born premature.

Administration of betamethasone however also affects the maternal glucose homeostasis, and it is well-known that in pregnant women with diabetes, the administration of glucocorticoids can lead to significant maternal hyperglycemia, and hypoglycemia in the neonate, unless the insulin dosage is adjusted accordingly. Administration of betamethasone also affects the glucose homeostasis in pregnant non-diabetic women. However, only few studies have investigated the changes in the blood glucose levels in non-diabetic pregnant women, and a more accurate depiction of the glycemic response to betamethasone can be obtained by continuous glucose monitoring.

Recruitment of participants will occur upon their arrival with symptoms of threatened preterm birth, when it is decided to start treatment with betamethasone for fetal lung maturation.

To measure blood glucose levels in the pregnant women, a continuous glucose monitor (CGM) will be used.

Further, blood samples will be collected on days 1-6 after inclusion, for measurement of: Insulin, blood glucose, 3-hydroxybutyrat, HgbA1c, CRP and leucocytes.

Urine dipstick test for ketones and glucose will be performed twice daily. After delivery, a blood sample will be extracted from the umbilical cord for measurement of Ph, base-excess, glucose, insulin c-peptide and inflammatory markers.

Information on hypoglycemia and/or the need for early feeding of the infant after birth will be recorded.

Perspectives:

The results of this study will help us understand how the administration of betamethasone affects maternal blood glucose levels. If it is found, that administration of betamethasone causes significant hyperglycemia in the pregnant women, it may be important to measure and treat hyperglycemia during betamethasone treatment, to ensure the effect of betamethasone and prevent neonatal complications due to hypoglycemia.

Conditions

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Preterm Birth Hyperglycemia Neonatal Hypoglycemia Threatened Preterm Labor

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Pregnant in gestational week 24+0 - 34+0 admitted with symptoms of threatened preterm birth:

* Premature contractions and shortening of the cervix, or
* Preterm premature rupture of membranes.
* Treatment with betamethasone for fetal lung maturation is planned, or started (maximum 4 hours before inclusion)
* Age over 18 years
* Read and understand Danish

Exclusion Criteria

* Multiple pregnancy
* Diabetes
* Pre-existing maternal use of medications that affect glucose metabolism
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Aarhus

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Aarhus University Hospital

Aarhus, Central Region Denmark, Denmark

Site Status RECRUITING

Countries

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Denmark

Central Contacts

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Victoria Bøttker

Role: CONTACT

+45 21253835

Puk Sandager, MD, PhD

Role: CONTACT

Facility Contacts

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Puk Sandager, MD, Phd

Role: primary

0045 + 24216026

Per Glud Ovesen, MD, DMSci, Professor

Role: backup

0045 +´61669728 /78453315

Other Identifiers

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2024_VB_CGM

Identifier Type: -

Identifier Source: org_study_id

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