Glucose Homeostasis, Metabolomics and Pregnancy Outcomes After Bariatric Surgery

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexFemale
Age18-45
SponsorUniversitaire Ziekenhuizen KU Leuven

About this trial

The aim of the GLORIA study is to determine whether an altered glucose metabolism (with more hypoglycaemia and glycaemic variability) and altered metabolomics during pregnancy after bariatric surgery contribute to the increased risk for adverse pregnancy outcomes such as small-for-gestational age infants. In addition, the investigators also aim to evaluate whether continuous glucose monitoring (CGM) can be used to diagnose gestational diabetes (GDM).

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age 18-45 years and with a singleton pregnancy with ultrasound-confirmed gestational age up to 11 weeks and 6 days

for the group with bariatric surgery: history of gastric bypass (RYBG) or sleeve gastrectomy (SG)

Participants need to speak and understand Flemish, French or English and have e-mail access.

Disqualifiers

multiple pregnancy

pregnancy ≥12 weeks

other types of bariatric surgery than RYBG or SG

known pregestational diabetes

Trial population

95 pregnant women with a history of bariatric surgery (RYBG or SG) and 95 age-and BMO matched pregnant women without history of bariatric surgery

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • CGM

    Diagnostic test

    blinded CGM used at 4 different time points in pregnancy

Treatment groups

190 Participants
are divided into 2 treatment groups
Group A: pregnant group with bariatric surgery1 intervention
Group B: matched pregnant group without history of bariatric surgery1 intervention

Trial outcomes

Primary outcomes

1

mean glycaemia

mean glycaemia measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy
2

Standard deviation of glycaemia

SD measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy

Secondary outcomes

1

time <54mg/dl

time \<54mg/dl measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy
2

glycaemic variability measured by coefficient of variation (CV)

CV measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy
3

glycaemic variability measured by mean amplitude of glucose excursions (MAGE)

MAGE measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy
4

time <70mg/dl

time \<70mg/dl measured by CGM

Time frame
between 6-12 weeks of pregnancy, 18-22 weeks of pregnancy, 24-28 weeks of pregnancy and 30-34 weeks of pregnancy

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Universitaire Ziekenhuizen KU Leuven

Lead sponsor

University Hospital, Antwerp

Collaborator

University Hospital, Ghent

Collaborator

Ziekenhuis Netwerk Antwerpen (ZNA)

Collaborator

Onze Lieve Vrouw Hospital

Collaborator

Imelda Hospital, Bonheiden

Collaborator

AZ Sint-Lucas Brugge

Collaborator

General Hospital Groeninge

Collaborator