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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
The investigators hypothesize that Pakistani mothers as darkly pigmented, will require substantially higher oral supplementation with vitamin D to replenish the micronutrient stores and aid to resolve associated maternal and neonatal morbidity due to Vitamin D deficiency. The investigators expect that if vitamin D is supplemented to pregnant women, their newborn infants would inevitably replenish the micronutrient stores and aid to resolve the maternal and neonatal morbidity due to Vitamin D deficiency.This is hospital based double blinded trial, study participants divided into three groups which will receive Vitamin D supplementation in 400, 2000 and 4000 International Units. The group which will receive 400 IUs will be treated as control group.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention Group | Active Comparator | Arm 1 is receiving vitamin D supplementation in 2000 IU/day , |
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| Arm 2 intervention group | Active Comparator | Arm 2 is receiving vitamin D supplementation in 4000/IU per day |
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| Arm 3 control group | Active Comparator | Arm 3 is receiving vitamin D supplementation in 400 IU/day |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Vitamin D supplement | Drug | comparison of different dosages of vitamin D |
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| Measure | Description | Time Frame |
|---|---|---|
| pregnancy out come | Hypovitaminosis, Pre eclampsia, Preterm labour, preterm birth, low birth weight, Still birth rates. | At delivery of neonate |
| Measure | Description | Time Frame |
|---|---|---|
| Prevalence of vitamin D deficiency in pregnant women | Maternal vitamin D deficiency in the target group. | at recruitment into study (first trimester) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Sidrah Nausheen, FCPS | Aga Khan University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Aga Khan University | Karachi | Sindh | 75300 | Pakistan |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 18285809 | Result | 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. | |
| 17951482 | Result |
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| Vitamin D supplement | Drug | comparison of different dosages of vitamin D Supplement |
|
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| 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. |
| 16399151 | Result | 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. |
| 17311057 | Result | 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. |
| 39077939 | Derived | 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. |
| 35028513 | Derived | 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. |