NCT03037593

Brief Summary

Demonstrate dose-dependent relationship between vitamin D supplementation and rates of gestational diabetes.

Trial Health

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Jun 2017

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 27, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 31, 2017

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2017

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2020

Completed
Last Updated

November 1, 2019

Status Verified

October 1, 2019

Enrollment Period

3 years

First QC Date

January 27, 2017

Last Update Submit

October 30, 2019

Conditions

Keywords

PregnancyGestational Diabetes

Outcome Measures

Primary Outcomes (1)

  • incidence of gestational diabetes

    effect of increased vitamin D supplementation (4000 IU vitamin D3 +prenatal vitamin) on the incidence of gestational diabetes compared to a standard prenatal vitamin among pregnant women at high risk for gestational diabetes.

    Baseline to Delivery of child

Secondary Outcomes (5)

  • Prescription for insulin or oral hypoglycemic agents

    Baseline to Delivery of child

  • Mode of delivery

    Delivery of child

  • Birth weight

    Delivery of Child

  • Apgar score

    Birth of child to 5 minutes

  • Shoulder Dystocia

    Birth of child

Study Arms (2)

Intervention

EXPERIMENTAL

4000 IU vitamin D3 +prenatal vitamin

Drug: 4000 IU vitamin D3

Control

NO INTERVENTION

standard prenatal vitamin

Interventions

vitamin D supplementation (4000 IU vitamin D3 +prenatal vitamin

Also known as: cholecalciferol
Intervention

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women who are currently pregnant and receiving prenatal care at the Women's Health Specialists Clinic (University of Minnesota Physicians) from either MD/DO or CNM providers
  • Subject established prenatal care no later than the completed 12th week of gestation (12 6/7 weeks)
  • Subject possesses as least one of the following characteristics:
  • BMI greater than or equal to 30 kg/m2
  • History of gestational diabetes in a prior pregnancy
  • History of infant with birth weight of 4500g or greater
  • Subject is capable of giving informed consent

You may not qualify if:

  • Age less than 18 years
  • Multiple gestation pregnancies (twins, triplets or greater multiples)
  • Vitamin D deficiency (defined as less than 20 ng/mL)
  • Preexisting diabetes mellitus defined as either:
  • pre-existing diagnosis prior to current pregnancy
  • failure of three-hour glucose tolerance test in first trimester of pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Minnesota Medical Center

Minneapolis, Minnesota, 55455, United States

Location

MeSH Terms

Conditions

Diabetes, Gestational

Interventions

Cholecalciferol

Condition Hierarchy (Ancestors)

Pregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

Study Officials

  • Samantha Hoffman, MD

    University of Minnesota

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: This will be a randomized single-center study with a target study group of 300 women. Women will be followed from enrollment through the remainder of their pregnancy
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 27, 2017

First Posted

January 31, 2017

Study Start

June 1, 2017

Primary Completion

June 1, 2020

Study Completion

June 1, 2020

Last Updated

November 1, 2019

Record last verified: 2019-10

Locations