Title

Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
High Prevalence of Rickets and Subclinical Maternal and Childhood Vitamin D Deficiency in the Middle East: a Randomized Controlled Trial of Prenatal Vitamin D Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Intervention/Treatment

    vitamin d3 multivitamins ...
  • Study Participants

    192
The purpose of this research study is to compare the effects of higher dose vitamin D with commonly recommended dose in pregnant women to see which is better in achieving and/or maintaining sufficient vitamin D blood levels during pregnancy and in newborn infants as well as improving growth in the infant.
Three dosages of Vitamin D will be administered; 400IU, 2000IU and 4000IU per day to pregnant women starting at less than 16 week gestation continued until delivery. The dose will be provided using a randomized control method. Serum levels of 25 hydroxy D will be measured in mothers at 12, 16, 28 and delivery. Cord blood 25 hydroxy D and the infants' birthweight, length and head circumference will be measured at birth.
Study Started
Jan 31
2008
Primary Completion
Jun 30
2011
Study Completion
Apr 30
2012
Results Posted
Jun 07
2013
Estimate
Last Update
Oct 19
2021

Drug Prenatal Vitamin

Once daily, prenatal vitamin containing 400IU of Vitamin D, until delivery

Drug Cholecalciferol (Vitamin D3)

Once daily, 1600IU dose of Vitamin D from 12 weeks gestation to delivery

Drug Cholecalciferol (Vitamin D3)

Once daily, 3600IU dose of Vitamin D, from 12 weeks until delivery

Prenatal Vitamin D3 Placebo Comparator

Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3)along with a placebo tablet containing 0IU of Vitamin D

2 Experimental

Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3)along with a tablet containing 1600IU of Cholecalciferol (Vitamin D3)

3 Experimental

Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3) along with a tablet containing 3600IU of Cholecalciferol (Vitamin D3).

Criteria

Inclusion Criteria:

Women who are within the ages of 18-45 years
In good general health
12 weeks pregnant (based on last menstrual period)

Exclusion Criteria:

Mothers with preexisting type I or type II diabetes
Mothers with preexisting hypertension
Mothers with preexisting parathyroid disease or uncontrolled thyroid disease
Mothers with multiple fetuses (e.g., twins, triplets, etc.)

Summary

400 IU

2000 IU

4000 IU

All Events

Event Type Organ System Event Term

Maternal Serum and Neonatal Serum 25-hydroxyvitamin D Measurement

Maternal serum 25-hydroxyvitamin D measurement at 12, 16, 28 weeks during pregnancy and at delivery and cord blood or neonatal serum 25-hydroxyvitamin D measurement

400 IU

Maternal at 12 Weeks

21.5
nmol/L (Mean)
Standard Error: 1.6

Maternal at 16 Weeks

40.7
nmol/L (Mean)
Standard Error: 2.1

Maternal at 28 Weeks

53.9
nmol/L (Mean)
Standard Error: 3.2

Maternal at Delivery

48.2
nmol/L (Mean)
Standard Error: 3.1

Neonatal at Birth

36.9
nmol/L (Mean)
Standard Error: 2.8

2000 IU

Maternal at 12 Weeks

20.5
nmol/L (Mean)
Standard Error: 1.5

Maternal at 16 Weeks

53.7
nmol/L (Mean)
Standard Error: 2.3

Maternal at 28 Weeks

82.3
nmol/L (Mean)
Standard Error: 4.4

Maternal at Delivery

64.9
nmol/L (Mean)
Standard Error: 4.0

Neonatal at Birth

48.3
nmol/L (Mean)
Standard Error: 3.5

4000 IU

Maternal at 12 Weeks

19.6
nmol/L (Mean)
Standard Error: 1.0

Maternal at 16 Weeks

60.7
nmol/L (Mean)
Standard Error: 3.3

Maternal at 28 Weeks

88.2
nmol/L (Mean)
Standard Error: 4.2

Maternal at Delivery

89.8
nmol/L (Mean)
Standard Error: 4.6

Neonatal at Birth

66.1
nmol/L (Mean)
Standard Error: 3.2

Growth of the Newborn Infant as Measured by Crown-heel Length and Head Circumference at Birth

Growth of the newborn infant as measured by crown-heel length in centimeters and head circumference in centimeters at birth

400 IU

Head Circumference

34.1
cm (Mean)
Standard Deviation: 1.4

Heel Crown Length

51.9
cm (Mean)
Standard Deviation: 2.2

2000 IU

Head Circumference

34.5
cm (Mean)
Standard Deviation: 2.0

Heel Crown Length

51.6
cm (Mean)
Standard Deviation: 2.8

4000 IU

Head Circumference

33.9
cm (Mean)
Standard Deviation: 2.2

Heel Crown Length

50.9
cm (Mean)
Standard Deviation: 3.7

Birthweight of Newborn Infant

Growth of the Newborn Infant as Measured by Birthweight in grams.

400 IU

3100.0
Grams (Mean)
Standard Deviation: 374

2000 IU

3191.0
Grams (Mean)
Standard Deviation: 492

4000 IU

3103.0
Grams (Mean)
Standard Deviation: 639

Total

192
Participants

Age, Continuous

26.9
years (Mean)
Standard Deviation: 5.3

Maternal serum 25 hydroxy Vitamin D (25(OH)D)

20.7
nmol/L (Mean)
Standard Deviation: 11.6

Age, Categorical

Region of Enrollment

Sex: Female, Male

Overall Study

400 IU

2000 IU

4000 IU