Effect of vitamin D on gestational diabetes.

Comparison of vitamin D supplements effect on gestational diabetes in pregnant women with and without vitamin D deficiency.

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT2015022714275N2

Enrollment

180

Registered

2015-04-04

Start date

2014-04-21

Completion date

Unknown

Last updated

2018-02-22

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

Conditions

Condition 1: Gestational Diabetes. Condition 2: Vitamin D deficiency. Diabetes mellitus in pregnancy, unspecified Vitamin D deficiency, unspecified

Interventions

Intervention 1: All patients in first intervention group receive one pearl vitamin D 50000IU every other week (totally 6) and one tablet multiprenatal daily from getational age 14-16 weeks. If one dos

Prevention

All patients in first intervention group receive one pearl vitamin D 50000IU every other week (totally 6) and one tablet multiprenatal daily from getational age 14-16 weeks. If one dose forgot it must

All patients in second intervention group receive one tablet multiprenatal daily from 14-16 weeks of gestational age. If one dose forgot it must be eaten and if two dose forgot subject will exclude fr

All patients in control group receive one tablet multiprenatal daily from 14-16 weeks of gestational age. If one dose forgot it must be eaten and if two dose forgot subject will exclude from study.

Eligibility

Sex/Gender

Female

Age

16 Years to 35 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: Age less than 35 years, single pregnancy; gestational age 8-12 weeks based on last menstrual period or ultrasound; body mass index less than 30 at the first prenatal follow up; fasting blood sugar less than 92 milligram per deciliter. Exclusion criteria: Metabolic disorders; Parathyroid disorders; untreated thyroid disorders; other endocrine disorders; hepatic and renal impairment; polyhydramnios; history of macrosomia, stillbirths and malformation; smoking; glucosuria; a history of gestational diabetes.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Blood sugar level. Timepoint: Gestational age 24 to 28 weeks. Method of measurement: Fasting blood sugar level and oral glucose tolerance test.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Nahid Rahbar

Semnan University of Medical Sciences

rahbar.nahid@gmail.com+98 23 3346 0077

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026