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The Impact of Vitamin D Supplementation on Pregnant Women With the Risk of GDM

The Impact of Vitamin D Supplementation on Gestational Diabetes Mellitus Risk in Pakistani Females: A Randomized Controlled Trial.

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06139133
Enrollment
350
Registered
2023-11-18
Start date
2024-01-31
Completion date
2025-12-31
Last updated
2023-11-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gestational Diabetes Mellitus

Keywords

Gestational Diabetes Mellitus, Pregnancy, High risk women, Vitamin D supplementation

Brief summary

A clinical trial will be conducted in Chemical pathology department in collaboration with Gyne &Obs department of PRH, IIMC over a period of 02 years w.e.f. December 15, 2023. 350 pregnant women with 07-11 weeks of gestation and having a high risk for GDM with low Vitamin D3 levels and normal response to 75g OGTT will be randomly assigned to receive either vitamin D3 supplementation (2 00,000 IU/Week) for 04 -06 weeks or Placebo. These women will be checked for the diagnosis of GDM with 75 g OGTT at 24- 28 weeks of gestation. The outcome of the study will be the incidence of GDM based on the International Association of Diabetes and Pregnancy Study Groups Criteria.

Detailed description

Gestational diabetes mellitus is a common condition among pregnant women with metabolic implications for both the mother and offspring. Studies have suggested a potential role of vitamin D status in GDM risk, but evidence from randomized controlled trials is inadequate and inconclusive. A research has been planned to investigate the effect of vitamin D supplementation on GDM development among high risk pregnant women through a well-designed RCT Pregnant women at a risk to develop GDM with low vitamin D levels (\<30 ng/mL) at 07-11 weeks of gestation will be recruited and randomly assigned to receive either vitamin D3 supplementation (2 00,000 IU/Week) for 04 -06 weeks or placebo. Randomization will be achieved using a computer-generated random sequence or a randomization table. The allocation will be done in a 1:1 ratio, with equal numbers of participants assigned to the vitamin D and placebo groups. The primary outcome will be the incidence of GDM based on the International Association of Diabetes and Pregnancy Study Groups Criteria after 75 g OGTT. This study will contribute to the understanding of the relationship between vitamin D and GDM risk through a well-designed RCT with integrated approaches. The findings may inform clinical practice and public health recommendations for vitamin D supplementation during pregnancy.

Interventions

DRUGPlacebo supplementation

Placebo

DRUGVitamin D supplementation

Vitamin D3 supplementation (2 00,000 IU/Week)

Sponsors

IIMC, Riphah International University, Pakistan
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Intervention model description

RCT

Eligibility

Sex/Gender
FEMALE
Age
21 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Pregnant women with 07-11 weeks of gestation * 21 - 40 Years age range * Pregnant women with high risk for GDM * history of GDM in their previous pregnancy, * one or more first-degree relative diagnosed with diabetes mellitus, * overweight-BMI \>25 kg/m2 or obese-BMI \>30 kg/m2 at their first antenatal visit * with a history of polycystic ovarian syndrome. * Pregnant women with 07-11 weeks of gestation having normal response to 75g OGTT * Low levels of Vitamin D3 (\<30ng/ml)

Exclusion criteria

* Women already diagnosed with diabetes mellitus * Any other systemic disease. * High risk pregnant women diagnosed with diabetes on the basis of 75g OGTT * High risk pregnant women with normal vitamin D3 levels (\>30ng/ml).

Design outcomes

Primary

MeasureTime frameDescription
Gestational diabetes mellitus with 75g OGTT28 weeks75g-OGTT is an oral glucose tolerance test done by ingesting 75 g glucose dissolved in water in the morning at 7- 8 am. * Patient seated quietly & relaxed for 30 mins before taking the test * A zero-time (baseline) blood sample is drawn * The patient is then given a 75-g glucose solution to drink within 5 minutes * 2nd Sample - 1h after consumption of sugar to measure the blood glucose * 3rd Sample- 2h after consumption of sugar to measure blood glucose * Both blood samples should be kept in fluoride-containing collection tubes Interpretation of Test: GDM diagnosed if any one of the following is present after 75g OGTT: * FPG: \>92 mg/dl * 1-hour PG: \>180 mg/dl * 2-hour PG: \>153 mg/dl * THE WHO GUIDELINES (2018)

Countries

Pakistan

Contacts

Primary ContactMuhammad Nadim Akbar Khan, FCPS
nadeem.akbar@riphah.edu.pk+923005190704

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026