Assessment of Dose Effectiveness of Vitamin D Supplementation During Pregnancy- a Dose Comparison Trial

Summary

The study is randomized blinded trial of Vitamin D supplementation to pregnant women; the study participants will receive Vitamin D in supplement form. Pregnant women will be individually randomized to three groups receiving a dose of 400, 2000 and 4000 IU/ day till the time of delivery.A blood sample will also be collected from the participant at the time of recruitment /before the starting of the supplementation for the assessment of Calcium, Phosphorus, Alkaline Phosphatase and Vitamin D levels. The second blood sample for vitamin D level to assess vitamin D status will be done after completion of the supplementation phase at the time of delivery (till 48 hours of delivery). The samples will be sent to Aga Khan University laboratory

Timeline

Start

2013-06

Primary completion

2015-07

Completion

2016-01

Publications

• Results Farrant HJ, Krishnaveni GV, Hill JC, Boucher BJ, Fisher DJ, Noonan K, Osmond C, Veena SR, Fall CH. Vitamin D insufficiency is common in Indian mothers but is not associated with gestational diabetes or variation in newborn size. Eur J Clin Nutr. 2009 May;63(5):646-52. doi: 10.1038/ejcn.2008.14. Epub 2008 Feb 20.
• Results Bodnar LM, Catov JM, Roberts JM, Simhan HN. Prepregnancy obesity predicts poor vitamin D status in mothers and their neonates. J Nutr. 2007 Nov;137(11):2437-42. doi: 10.1093/jn/137.11.2437.
• Results Javaid MK, Crozier SR, Harvey NC, Gale CR, Dennison EM, Boucher BJ, Arden NK, Godfrey KM, Cooper C; Princess Anne Hospital Study Group. Maternal vitamin D status during pregnancy and childhood bone mass at age 9 years: a longitudinal study. Lancet. 2006 Jan 7;367(9504):36-43. doi: 10.1016/S0140-6736(06)67922-1.
• Results Gale CR, Robinson SM, Harvey NC, Javaid MK, Jiang B, Martyn CN, Godfrey KM, Cooper C; Princess Anne Hospital Study Group. Maternal vitamin D status during pregnancy and child outcomes. Eur J Clin Nutr. 2008 Jan;62(1):68-77. doi: 10.1038/sj.ejcn.1602680. Epub 2007 Feb 21.
• Palacios C, Kostiuk LL, Cuthbert A, Weeks J. Vitamin D supplementation for women during pregnancy. Cochrane Database Syst Rev. 2024 Jul 30;7(7):CD008873. doi: 10.1002/14651858.CD008873.pub5.
• Nausheen S, Habib A, Bhura M, Rizvi A, Shaheen F, Begum K, Iqbal J, Ariff S, Shaikh L, Raza SS, Soofi SB. Impact evaluation of the efficacy of different doses of vitamin D supplementation during pregnancy on pregnancy and birth outcomes: a randomised, controlled, dose comparison trial in Pakistan. BMJ Nutr Prev Health. 2021 Sep 27;4(2):425-434. doi: 10.1136/bmjnph-2021-000304. eCollection 2021.

Drugs

Indications