NCT00868738

Brief Summary

The goal of our research is to provide data to enhance the development of nutritional guidelines, especially as related to mineral nutrition, in children. Using human experimentation, we are studying methods of delivering the key minerals of calcium, zinc and iron in the diet so as to optimize health outcomes. We will conduct a controlled trial of vitamin D supplementation to assess the effects of vitamin D status on calcium absorption in small children. We will evaluate the effects of differing intakes of zinc on zinc and copper absorption. These studies will utilize stable isotope techniques so as to provide accurate, practically applicable information which may be obtained from the study populations in a safe manner. These data will have global application and provide a strong basis for evidence-based nutritional recommendations to be developed. Objective #1: To evaluate the effects of supplemental vitamin D in enhancing calcium absorption in healthy children 4 to 8 yrs of age. Objective #2: Assess the absorption of magnesium and zinc in healthy children 4 to 8 yrs of age.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2009

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

March 1, 2009

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

March 24, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 25, 2009

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2011

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2011

Completed
Last Updated

November 2, 2011

Status Verified

November 1, 2011

Enrollment Period

2.4 years

First QC Date

March 24, 2009

Last Update Submit

November 1, 2011

Conditions

Keywords

CalciumVitamin DMagnesiumZinc

Outcome Measures

Primary Outcomes (1)

  • To evaluate the effects of supplemental vitamin D in enhancing calcium absorption in healthy children 4 to 8 yrs of age.

    End of the study

Secondary Outcomes (1)

  • Assess the absorption of magnesium and zinc in healthy children 4 to 8 yrs of age.

    End of the study

Study Arms (2)

Vitamin D

ACTIVE COMPARATOR

Subjects will be provided supplemental vitamin D3 (1000 IU), given once daily as a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.

Dietary Supplement: Vitamin D

Placebo

PLACEBO COMPARATOR

Subjects will be provided a placebo, given once daily as a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.

Dietary Supplement: Vitamin D

Interventions

Vitamin DDIETARY_SUPPLEMENT

Subjects will be provided supplemental vitamin D3 (1000 IU) or placebo, given once daily (based on the stratification noted above). Vitamin D/placebo will be provided using a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.

PlaceboVitamin D

Eligibility Criteria

Age4 Years - 8 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Delivery at \> or = 35.0 weeks gestation with birth weight \> or = 2.5 kg
  • BMI: 10th - 90th percentile for age and gender
  • Ages 4.0 to 8.9 years
  • Ethnic distribution of greater Houston area
  • Usual calcium intake 600-1200 mg/d based on two 24-hour dietary recalls by phone
  • Any regularly taken (daily) vitamins and minerals must be stopped at least 1 month before starting the study

You may not qualify if:

  • History of any chronic illness.
  • Regularly taken (daily) medications (except seasonal allergies).
  • Avoidance of dairy products or meat in the diet.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Baylor College of Medicine / Texas Children's Hospital

Houston, Texas, 77030, United States

Location

Related Publications (36)

  • Abrams SA, Griffin IJ, Hawthorne KM, Liang L, Gunn SK, Darlington G, Ellis KJ. A combination of prebiotic short- and long-chain inulin-type fructans enhances calcium absorption and bone mineralization in young adolescents. Am J Clin Nutr. 2005 Aug;82(2):471-6. doi: 10.1093/ajcn.82.2.471.

    PMID: 16087995BACKGROUND
  • Abrams SA, Hawthorne KM, Aliu O, Hicks PD, Chen Z, Griffin IJ. An inulin-type fructan enhances calcium absorption primarily via an effect on colonic absorption in humans. J Nutr. 2007 Oct;137(10):2208-12. doi: 10.1093/jn/137.10.2208.

    PMID: 17884999BACKGROUND
  • Ames SK, Gorham BM, Abrams SA. Effects of high compared with low calcium intake on calcium absorption and incorporation of iron by red blood cells in small children. Am J Clin Nutr. 1999 Jul;70(1):44-8. doi: 10.1093/ajcn/70.1.44.

    PMID: 10393137BACKGROUND
  • Beard JL, Dawson H, Pinero DJ. Iron metabolism: a comprehensive review. Nutr Rev. 1996 Oct;54(10):295-317. doi: 10.1111/j.1753-4887.1996.tb03794.x.

    PMID: 9063021BACKGROUND
  • Bischoff-Ferrari HA, Dietrich T, Orav EJ, Dawson-Hughes B. Positive association between 25-hydroxy vitamin D levels and bone mineral density: a population-based study of younger and older adults. Am J Med. 2004 May 1;116(9):634-9. doi: 10.1016/j.amjmed.2003.12.029. No abstract available.

    PMID: 15093761BACKGROUND
  • Bray MS, Shaw CA, Moore MW, Garcia RA, Zanquetta MM, Durgan DJ, Jeong WJ, Tsai JY, Bugger H, Zhang D, Rohrwasser A, Rennison JH, Dyck JR, Litwin SE, Hardin PE, Chow CW, Chandler MP, Abel ED, Young ME. Disruption of the circadian clock within the cardiomyocyte influences myocardial contractile function, metabolism, and gene expression. Am J Physiol Heart Circ Physiol. 2008 Feb;294(2):H1036-47. doi: 10.1152/ajpheart.01291.2007. Epub 2007 Dec 21.

    PMID: 18156197BACKGROUND
  • Davidsson L, Ziegler EE, Kastenmayer P, Hurrell RF. Erythrocyte incorporation of iron by infants: iron bioavailability from a low-iron infant formula and an evaluation of the usefulness of correcting erythrocyte incorporation values, using a reference dose or plasma ferritin concentrations. Br J Nutr. 2000 Dec;84(6):847-53.

    PMID: 11177201BACKGROUND
  • Donovan A, Andrews NC. The molecular regulation of iron metabolism. Hematol J. 2004;5(5):373-80. doi: 10.1038/sj.thj.6200540.

    PMID: 15448662BACKGROUND
  • Eisenstein RS. Iron regulatory proteins and the molecular control of mammalian iron metabolism. Annu Rev Nutr. 2000;20:627-62. doi: 10.1146/annurev.nutr.20.1.627.

    PMID: 10940348BACKGROUND
  • Fleet JC, Eksir F, Hance KW, Wood RJ. Vitamin D-inducible calcium transport and gene expression in three Caco-2 cell lines. Am J Physiol Gastrointest Liver Physiol. 2002 Sep;283(3):G618-25. doi: 10.1152/ajpgi.00269.2001.

    PMID: 12181175BACKGROUND
  • Fleet JC, Wood RJ. Specific 1,25(OH)2D3-mediated regulation of transcellular calcium transport in Caco-2 cells. Am J Physiol. 1999 Apr;276(4):G958-64. doi: 10.1152/ajpgi.1999.276.4.G958.

    PMID: 10198340BACKGROUND
  • Friend DR. Drug delivery to the small intestine. Curr Gastroenterol Rep. 2004 Oct;6(5):371-6. doi: 10.1007/s11894-004-0052-z.

    PMID: 15341712BACKGROUND
  • Garcia-Casal MN, Leets I, Layrisse M. Beta-carotene and inhibitors of iron absorption modify iron uptake by Caco-2 cells. J Nutr. 2000 Jan;130(1):5-9. doi: 10.1093/jn/130.1.5.

    PMID: 10613757BACKGROUND
  • Gordon CM, DePeter KC, Feldman HA, Grace E, Emans SJ. Prevalence of vitamin D deficiency among healthy adolescents. Arch Pediatr Adolesc Med. 2004 Jun;158(6):531-7. doi: 10.1001/archpedi.158.6.531.

    PMID: 15184215BACKGROUND
  • Griffin IJ, Davila PM, Abrams SA. Non-digestible oligosaccharides and calcium absorption in girls with adequate calcium intakes. Br J Nutr. 2002 May;87 Suppl 2:S187-91. doi: 10.1079/BJNBJN/2002536.

    PMID: 12088517BACKGROUND
  • Griffin IJ, Lynch MF, Hawthorne KM, Chen Z, Hamzo M, Abrams SA. Magnesium retention in 12 to 48 month-old children. J Am Coll Nutr. 2008 Apr;27(2):349-55. doi: 10.1080/07315724.2008.10719711.

    PMID: 18689570BACKGROUND
  • Griffin IJ, Lynch MF, Hawthorne KM, Chen Z, Hamzo MG, Abrams SA. Zinc homeostasis in 1-4 year olds consuming diets typical of US children. Br J Nutr. 2007 Aug;98(2):358-63. doi: 10.1017/S0007114507708796. Epub 2007 Apr 26.

    PMID: 17459190BACKGROUND
  • Gunshin H, Allerson CR, Polycarpou-Schwarz M, Rofts A, Rogers JT, Kishi F, Hentze MW, Rouault TA, Andrews NC, Hediger MA. Iron-dependent regulation of the divalent metal ion transporter. FEBS Lett. 2001 Dec 7;509(2):309-16. doi: 10.1016/s0014-5793(01)03189-1.

    PMID: 11741608BACKGROUND
  • Hallberg L, Rossander L, Skanberg AB. Phytates and the inhibitory effect of bran on iron absorption in man. Am J Clin Nutr. 1987 May;45(5):988-96. doi: 10.1093/ajcn/45.5.988.

    PMID: 3034044BACKGROUND
  • Heaney RP, Dowell MS, Hale CA, Bendich A. Calcium absorption varies within the reference range for serum 25-hydroxyvitamin D. J Am Coll Nutr. 2003 Apr;22(2):142-6. doi: 10.1080/07315724.2003.10719287.

    PMID: 12672710BACKGROUND
  • Holick MF. Sunlight and vitamin D for bone health and prevention of autoimmune diseases, cancers, and cardiovascular disease. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1678S-88S. doi: 10.1093/ajcn/80.6.1678S.

    PMID: 15585788BACKGROUND
  • Johnston CC Jr, Miller JZ, Slemenda CW, Reister TK, Hui S, Christian JC, Peacock M. Calcium supplementation and increases in bone mineral density in children. N Engl J Med. 1992 Jul 9;327(2):82-7. doi: 10.1056/NEJM199207093270204.

    PMID: 1603140BACKGROUND
  • Lynch MF, Griffin IJ, Hawthorne KM, Chen Z, Hamzo M, Abrams SA. Calcium balance in 1-4-y-old children. Am J Clin Nutr. 2007 Mar;85(3):750-4. doi: 10.1093/ajcn/85.3.750.

    PMID: 17344496BACKGROUND
  • Lynch SR. Iron overload: prevalence and impact on health. Nutr Rev. 1995 Sep;53(9):255-60. doi: 10.1111/j.1753-4887.1995.tb05482.x.

    PMID: 8577408BACKGROUND
  • McKie AT, Barrow D, Latunde-Dada GO, Rolfs A, Sager G, Mudaly E, Mudaly M, Richardson C, Barlow D, Bomford A, Peters TJ, Raja KB, Shirali S, Hediger MA, Farzaneh F, Simpson RJ. An iron-regulated ferric reductase associated with the absorption of dietary iron. Science. 2001 Mar 2;291(5509):1755-9. doi: 10.1126/science.1057206. Epub 2001 Feb 1.

    PMID: 11230685BACKGROUND
  • Monsen ER. Iron nutrition and absorption: dietary factors which impact iron bioavailability. J Am Diet Assoc. 1988 Jul;88(7):786-90.

    PMID: 3290310BACKGROUND
  • Northstone K, Emmett P. Multivariate analysis of diet in children at four and seven years of age and associations with socio-demographic characteristics. Eur J Clin Nutr. 2005 Jun;59(6):751-60. doi: 10.1038/sj.ejcn.1602136.

    PMID: 15841093BACKGROUND
  • Rajakumar K, Fernstrom JD, Holick MF, Janosky JE, Greenspan SL. Vitamin D status and response to Vitamin D(3) in obese vs. non-obese African American children. Obesity (Silver Spring). 2008 Jan;16(1):90-5. doi: 10.1038/oby.2007.23.

    PMID: 18223618BACKGROUND
  • Thane CW, Bates CJ, Prentice A. Risk factors for low iron intake and poor iron status in a national sample of British young people aged 4-18 years. Public Health Nutr. 2003 Aug;6(5):485-96. doi: 10.1079/PHN2002455.

    PMID: 12943565BACKGROUND
  • Vieth R, Bischoff-Ferrari H, Boucher BJ, Dawson-Hughes B, Garland CF, Heaney RP, Holick MF, Hollis BW, Lamberg-Allardt C, McGrath JJ, Norman AW, Scragg R, Whiting SJ, Willett WC, Zittermann A. The urgent need to recommend an intake of vitamin D that is effective. Am J Clin Nutr. 2007 Mar;85(3):649-50. doi: 10.1093/ajcn/85.3.649. No abstract available.

    PMID: 17344484BACKGROUND
  • Walczyk T, Davidsson L, Rossander-Hulthen L, Hallberg L, Hurrell RF. No enhancing effect of vitamin A on iron absorption in humans. Am J Clin Nutr. 2003 Jan;77(1):144-9. doi: 10.1093/ajcn/77.1.144.

    PMID: 12499334BACKGROUND
  • Wessling-Resnick M. Iron transport. Annu Rev Nutr. 2000;20:129-51. doi: 10.1146/annurev.nutr.20.1.129.

    PMID: 10940329BACKGROUND
  • Zoller H, Theurl I, Koch R, Kaser A, Weiss G. Mechanisms of iron mediated regulation of the duodenal iron transporters divalent metal transporter 1 and ferroportin 1. Blood Cells Mol Dis. 2002 Nov-Dec;29(3):488-97. doi: 10.1006/bcmd.2002.0587.

    PMID: 12547239BACKGROUND
  • Huey SL, Acharya N, Silver A, Sheni R, Yu EA, Pena-Rosas JP, Mehta S. Effects of oral vitamin D supplementation on linear growth and other health outcomes among children under five years of age. Cochrane Database Syst Rev. 2020 Dec 8;12(12):CD012875. doi: 10.1002/14651858.CD012875.pub2.

  • Cummings SR, Eastell R. A History of Pivotal Advances in Clinical Research into Bone and Mineral Diseases. J Bone Miner Res. 2018 Jan;33(1):5-12. doi: 10.1002/jbmr.3353. Epub 2018 Jan 12. No abstract available.

  • Abrams SA, Hawthorne KM, Chen Z. Supplementation with 1000 IU vitamin D/d leads to parathyroid hormone suppression, but not increased fractional calcium absorption, in 4-8-y-old children: a double-blind randomized controlled trial. Am J Clin Nutr. 2013 Jan;97(1):217-23. doi: 10.3945/ajcn.112.046102. Epub 2012 Nov 14.

MeSH Terms

Interventions

Vitamin D

Intervention Hierarchy (Ancestors)

SecosteroidsSteroidsFused-Ring CompoundsPolycyclic Compounds

Study Officials

  • Steve Abrams, MD

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 24, 2009

First Posted

March 25, 2009

Study Start

March 1, 2009

Primary Completion

August 1, 2011

Study Completion

October 1, 2011

Last Updated

November 2, 2011

Record last verified: 2011-11

Locations