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Vitamin D DeficiencyNCT01778114

Availability of Vitamin D in Orange Juice

A study testing Vitamin D2 in orange juice, Vitamin D3 in orange juice and Vitamin D2 in people with Vitamin D Deficiency, run by Boston 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 study was to determine whether vitamin D2 and vitamin D3 in orange juice are effective at raising vitamin D levels in the blood and if vitamin D2 and vitamin D3 in orange juice raised blood levels of 25(OH)D as well as vitamin D3 and vitamin D2 supplements. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Vitamin D Deficiency
What is being tested?
Vitamin D2 in orange juice, Vitamin D3 in orange juice and Vitamin D2
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
86 participants
Where
1 siteUnited States
Study dates
Dec 2006to Jun 2007
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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male and female adults of all races ages 18 years and older

Who cannot join

  • Pregnant and lactating women
  • History of chronic severe liver (as defined by liver function test greater than 2 times upper limit of normal)or kidney disease as defined by a serum creatinine >2.5.
  • History of taking a daily supplement that contains 400 or more IU vitamin D2 or vitamin D3 within the past month or taking a pharmacologic amount of vitamin D2 or one of the active vitamin D analogs including Zemplar (Paricalcitol), Dovonex (calcipotriol), Hectorol (vitamin D pro hormone)
  • Subjects who are taking orally Dilantin or glucocorticoids.
  • Exposure to a tanning bed or tanning on a beach for more than eight hours within the past month.
  • Subjects who drink more than 2 glasses (16 oz) cups of milk a day.
Show all 12Show fewer
  • Known history of elevated calcium. (> 10.5 mg% (mg/dl))
  • History of intestinal malabsorption (i.e. Cystic Fibrosis, Fat malabsorption Syndrome, Crohn's Disease)
  • Allergies to orange juice
  • Any medical conditions in which it is not advisable to receive one 8 oz. glass of orange juice per day.
  • Currently taking, or having taken less than one month prior to start of study, a prescription vitamin D
  • Unwilling to consent to this trial

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boston University Medical Center

    Boston, Massachusetts, 02118

Other trials in United States

About this study

Official title: Bioavailability of Vitamin D2 and Vitamin D3 in Supplements Compared to Vitamin D3 and Vitamin D2 in Fortified Orange Juice

The purpose of this study was to determine whether vitamin D2 and vitamin D3 in orange juice are effective at raising vitamin D levels in the blood and if vitamin D2 and vitamin D3 in orange juice raised blood levels of 25(OH)D as well as vitamin D3 and vitamin D2 supplements.

Read the detailed description

This study should provide valuable information about the bioavailability of both vitamin D2 and vitamin D3 formulated in orange juice compared to vitamin D2 and vitamin D3 formulated in a pill and taken with water. It is anticipated based on our previous observation that the vitamin D2 and vitamin D3 in orange juice will be at least 50% more effective in raising the blood levels of 25(OH)D than when taken in pill form.

This study will evaluate the bioavailability and metabolism of vitamin D2 and vitamin D3 in combination in tablet form. The results should provide important information as to whether a physiologic dose of vitamin D2 has a negative effect on circulating levels of 25-hydroxyvitamin D2 [25(OH)D2 ] and on 25-hydroxyvitamin D3 [25(OH)D3]. Results from this study have important implications for expanding the adequate intake (AI) recommendations for vitamin D2 and vitamin D3 for adults.

Being tested
Vitamin D2 in orange juice, Vitamin D3 in orange juice, Vitamin D2, Vitamin D3, Placebo
Keywords
Vitamin D2, Vitamin D3, Vitamin D, Orange Juice
Medical subject headings
Vitamin D Deficiency

What participants receive

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

  • Vitamin D2 in orange juiceDietary supplement

    1000 IU dose

  • Vitamin D3 in orange juiceDietary supplement

    1000 IU

  • Vitamin D2Dietary supplement

    capsule, 1000 IU

  • Vitamin D3Dietary supplement

    capsule, 1000 IU

  • PlaceboOther

    Placebo

Study groups in NCT01778114
Study groupRoleWhat they receive
Placebo + orange juice without vitamin DPlacebo comparatorPlacebo + orange juice without vitamin D
Receives: Other: Placebo
Placebo + 1000 IU vitamin D3 in OJExperimentalVitamin D3 in orange juice
Receives: Dietary Supplement: Vitamin D3 in orange juice
Placebo + 1000 IU vitamin D2 in OJExperimentalVitamin D2 in orange juice
Receives: Dietary Supplement: Vitamin D2 in orange juice
1000 IU vitamin D3 + placebo OJActive comparator1000 IU vitamin D3 + placebo OJ
Receives: Dietary Supplement: Vitamin D3
1000 IU vitamin D2 + placebo OJActive comparator1000 IU vitamin D2 + placebo OJ
Receives: Dietary Supplement: Vitamin D2

What is being measured

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

  1. Measurement of 25(OH)D levels after ingestion of 1,000 IU of vitamin D2 or vitamin D3 in a capsule

    Measured: 11 weeks

Secondary outcomes (1)
  1. Measurement 25(OH)D levels after taking vitamin D2 or vitamin D3 in orange juice

    Measured: 11 weeks

Timeline

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

  1. First posted29 Jan 2013 (estimated)
  2. Study startDec 2006
  3. Primary completionJun 2007
  4. Study completionJun 2007

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
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01778114
Sponsor's protocol ID
H-26117
Status last verified
Mar 2017
First submitted
23 Jan 2013
Last updated
29 Mar 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Holick MF. High prevalence of vitamin D inadequacy and implications for health. Mayo Clin Proc. 2006 Mar;81(3):353-73. doi: 10.4065/81.3.353.

    PubMed 16529140
  • Holick MF; New Collective Author. Sunlight "D"ilemma: risk of skin cancer or bone disease and muscle weakness. Lancet. 2001 Jan 6;357(9249):4-6. doi: 10.1016/S0140-6736(00)03560-1. No abstract available.

    PubMed 11197362
  • Institute of Medicine (US) Standing Committee on the Scientific Evaluation of Dietary Reference Intakes. Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. Washington (DC): National Academies Press (US); 1997. Available from http://www.ncbi.nlm.nih.gov/books/NBK109825/

    PubMed 23115811
  • Webb AR, Kline L, Holick MF. Influence of season and latitude on the cutaneous synthesis of vitamin D3: exposure to winter sunlight in Boston and Edmonton will not promote vitamin D3 synthesis in human skin. J Clin Endocrinol Metab. 1988 Aug;67(2):373-8. doi: 10.1210/jcem-67-2-373.

    PubMed 2839537
  • Malabanan A, Veronikis IE, Holick MF. Redefining vitamin D insufficiency. Lancet. 1998 Mar 14;351(9105):805-6. doi: 10.1016/s0140-6736(05)78933-9. No abstract available.

    PubMed 9519960
  • Tangpricha V, Koutkia P, Rieke SM, Chen TC, Perez AA, Holick MF. Fortification of orange juice with vitamin D: a novel approach for enhancing vitamin D nutritional health. Am J Clin Nutr. 2003 Jun;77(6):1478-83. doi: 10.1093/ajcn/77.6.1478.

    PubMed 12791627
  • Holick MF, Siris ES, Binkley N, Beard MK, Khan A, Katzer JT, Petruschke RA, Chen E, de Papp AE. Prevalence of Vitamin D inadequacy among postmenopausal North American women receiving osteoporosis therapy. J Clin Endocrinol Metab. 2005 Jun;90(6):3215-24. doi: 10.1210/jc.2004-2364. Epub 2005 Mar 29.

    PubMed 15797954
  • Heaney RP, Davies KM, Chen TC, Holick MF, Barger-Lux MJ. Human serum 25-hydroxycholecalciferol response to extended oral dosing with cholecalciferol. Am J Clin Nutr. 2003 Jan;77(1):204-10. doi: 10.1093/ajcn/77.1.204.

    PubMed 12499343
  • Armas LA, Hollis BW, Heaney RP. Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. doi: 10.1210/jc.2004-0360.

    PubMed 15531486
  • Trang HM, Cole DE, Rubin LA, Pierratos A, Siu S, Vieth R. Evidence that vitamin D3 increases serum 25-hydroxyvitamin D more efficiently than does vitamin D2. Am J Clin Nutr. 1998 Oct;68(4):854-8. doi: 10.1093/ajcn/68.4.854.

    PubMed 9771862
  • Biancuzzo RM, Young A, Bibuld D, Cai MH, Winter MR, Klein EK, Ameri A, Reitz R, Salameh W, Chen TC, Holick MF. Fortification of orange juice with vitamin D(2) or vitamin D(3) is as effective as an oral supplement in maintaining vitamin D status in adults. Am J Clin Nutr. 2010 Jun;91(6):1621-6. doi: 10.3945/ajcn.2009.27972. Epub 2010 Apr 28.

    PubMed 20427729

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin D2 in orange juice, Vitamin D3 in orange juice and Vitamin D2 in people with Vitamin D Deficiency, run by Boston 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 1 inclusion and 12 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 29 Mar 2017. 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. Some participants in this study may receive a placebo. 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?

Measurement of 25(OH)D levels after ingestion of 1,000 IU of vitamin D2 or vitamin D3 in a capsule (time frame: 11 weeks). 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 NCT01778114, which also lists 11 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 29 Mar 2017.

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