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Vitamin D DeficiencyNCT01537809

Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors [The Daily D Health Study]

A study testing Vitamin D3 in people with Vitamin D Deficiency, run by Tufts University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this research is to determine what supplemental doses of vitamin D may be necessary to raise serum levels to optimal levels and how vitamin D supplementation and changes in vitamin D status impact cardiovascular risk factors in schoolchildren. Read more about this study

Who is it for?
Ages 9 to 14 yearsHealthy volunteers can take part
Conditions the study is for
Vitamin D Deficiency
What is being tested?
Vitamin D3
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
691 participants
Where
1 siteUnited States
Study dates
Jun 2011to Dec 2013
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 9 to 14 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Subjects in 4th-8th grade
  • Subjects must attend school where study is being conducted
  • Subject and parent/guardian must give assent/consent to participate in study Related Requirements
  • Subjects must complete all study visits (baseline, 3,6 and 12 months)
  • Subjects must agree to be blinded

Who cannot join

  • Subjects taking glucocorticoids
  • Subjects not in 4th-8th grade
  • Clinical diagnosis of Cystic Fibrosis
  • Clinical diagnosis of Kidney disease
  • Subjects currently taking a vitamin D supplement of >1000 IU/day
  • Subjects diagnosed with Irritable Bowel Syndrome (IBS)
Show all 9Show fewer
  • Clinical diagnosis of AIDS
  • Clinical diagnosis of Sarcoidosis
  • Clinical diagnosis of Epilepsy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Tufts University

    Boston, Massachusetts, 02111

Other trials in United States

About this study

Official title: The Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors in Schoolchildren

The purpose of this research is to determine what supplemental doses of vitamin D may be necessary to raise serum levels to optimal levels and how vitamin D supplementation and changes in vitamin D status impact cardiovascular risk factors in schoolchildren.

Read the detailed description

Research suggests that vitamin D, known mainly for its role in bone health, may have other roles in the body and that vitamin D deficiency may contribute to certain chronic diseases, such as cardiovascular disease. Recently, vitamin D has received growing attention due to the increased awareness of possible deficiencies among certain populations at risk of vitamin D deficiency. Most circulating 25-hydroxyvitamin D comes from exposure to UVB rays in natural sunlight. In 2010, the Institute of Medicine issued new recommendations that daily vitamin D intakes should be increased to 600 IU/day for children ages 1-18. However, even with these recommendations in place, roughly 20% of all children are below the recommended 20 ng/mL. Moreover, more than two-thirds of all children have levels below 30 ng/mL, including 80% of Hispanic children and 92% of non-Hispanic black children. Therefore, it is imperative to gain an understanding of: 1) what supplemental doses may be necessary for schoolchildren who are already at a disadvantage in achieving optimal levels of 25(OH)D due to factors such as living at a northern latitude, having high obesity rates, and where a large proportion of the population are Latino or African American; and 2) whether serum concentrations of 25(OH)D over 30 ng/mL in children prevent health risks.

Being tested
Vitamin D3
Keywords
Vitamin D, Vitamin D Deficiency, Avitaminosis, Deficiency Diseases, Blood lipids
Medical subject headings
Vitamin D Deficiency, Avitaminosis, Deficiency Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vitamin D3Dietary supplement

    Subjects are told to take vitamin D daily for 6 months.

  • Vitamin D3Dietary supplement

    Subjects are asked to take vitamin D orally, daily for six months.

Study groups in NCT01537809
Study groupRoleWhat they receive
D3 600 IU/ dailyActive comparatorSubjects randomized to 600 IU/day of vitamin D3 taken orally for six months.
Receives: Dietary Supplement: Vitamin D3
D3 1000 IU/ dailyActive comparatorSubjects randomized to 1000 IU/day of vitamin D3 taken orally for six months.
Receives: Dietary Supplement: Vitamin D3
D3: 2000 IU/dailyActive comparatorSubjects randomized to 2000 IU/day of vitamin D3 taken orally for six months.
Receives: Dietary Supplement: Vitamin D3

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in vitamin D levels over six month period

    Subjects will be randomized to receive one of three doses of vitamin D3. Baseline serum 25(OH)D levels will be compared to serum 25(OH)D at 3 and 6 months.

    Safety Issue?: (FDAAA) No

    Measured: Six months

Secondary outcomes (1)
  1. measure serum glucose and blood lipids (total cholesterol, HDL, LDL and triglycerides) in connection with changes in vitamin D status

    Baseline cardiometabolic risk factors will be compared at 3, 6 and 12 months

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2012 (estimated)
  2. Study startJun 2011
  3. Primary completionDec 2013
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
691 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01537809
Sponsor's protocol ID
1103016
Other IDs
3R01HL106160
Status last verified
Dec 2013
First submitted
17 Feb 2012
Last updated
13 Dec 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Sacheck J, Goodman E, Chui K, Chomitz V, Must A, Economos C. Vitamin D deficiency, adiposity, and cardiometabolic risk in urban schoolchildren. J Pediatr. 2011 Dec;159(6):945-50. doi: 10.1016/j.jpeds.2011.06.001. Epub 2011 Jul 23.

    PubMed 21784451
  • Sacheck JM, Huang Q, Van Rompay MI, Chomitz VR, Economos CD, Eliasziw M, Gordon CM, Goodman E. Vitamin D supplementation and cardiometabolic risk factors among diverse schoolchildren: a randomized clinical trial. Am J Clin Nutr. 2022 Jan 11;115(1):73-82. doi: 10.1093/ajcn/nqab319.

    PubMed 34550329
  • Blakeley CE, Van Rompay MI, Schultz NS, Sacheck JM. Relationship between muscle strength and dyslipidemia, serum 25(OH)D, and weight status among diverse schoolchildren: a cross-sectional analysis. BMC Pediatr. 2018 Feb 2;18(1):23. doi: 10.1186/s12887-018-0998-x.

    PubMed 29394922
  • Sacheck JM, Van Rompay MI, Chomitz VR, Economos CD, Eliasziw M, Goodman E, Gordon CM, Holick MF. Impact of Three Doses of Vitamin D3 on Serum 25(OH)D Deficiency and Insufficiency in At-Risk Schoolchildren. J Clin Endocrinol Metab. 2017 Dec 1;102(12):4496-4505. doi: 10.1210/jc.2017-01179.

    PubMed 29029097
  • Sawicki CM, Van Rompay MI, Au LE, Gordon CM, Sacheck JM. Sun-Exposed Skin Color Is Associated with Changes in Serum 25-Hydroxyvitamin D in Racially/Ethnically Diverse Children. J Nutr. 2016 Apr;146(4):751-7. doi: 10.3945/jn.115.222505. Epub 2016 Mar 2.

    PubMed 26936138
  • Van Rompay MI, McKeown NM, Goodman E, Eliasziw M, Chomitz VR, Gordon CM, Economos CD, Sacheck JM. Sugar-Sweetened Beverage Intake Is Positively Associated with Baseline Triglyceride Concentrations, and Changes in Intake Are Inversely Associated with Changes in HDL Cholesterol over 12 Months in a Multi-Ethnic Sample of Children. J Nutr. 2015 Oct;145(10):2389-95. doi: 10.3945/jn.115.212662. Epub 2015 Sep 2.

    PubMed 26338888

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin D3 in people with Vitamin D Deficiency, run by Tufts University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Dec 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in vitamin D levels over six month period (time frame: Six months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01537809, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Dec 2013.

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