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Vitamin D DeficiencyEarly Phase 1NCT02091219

Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function

A Early Phase 1 study testing Vitamin D and 25(OH)D3 in people with Vitamin D Deficiency, run by University of California, Los Angeles at 2 sites 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 is to compare the effects of two different forms of vitamin D supplements (vitamin D3 and 25-hyrdroxyvitamin D3 [25(OH)D3]) on vitamin D levels in the blood, and on markers of skeletal and immune health. This study is designed as a pilot study. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Vitamin D Deficiency
What is being tested?
Vitamin D and 25(OH)D3
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
35 participants
Where
2 sitesUnited States
Study dates
Jun 2014to 7 Dec 2019
Phase
Early Phase 1
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age > 18
  • 25D < 20 mg/ml

Who cannot join

  • Age < 18
  • 25D > 20 ng/ml at time of screening
  • Clear signs of infection at time of screening (coughing, sneezing, wheezing, frequency, dysuria)
  • History of conditions that would influence intestinal absorption of vitamin D3 or 25OHD3 supplements
  • History of nephrolithiasis, primary hyperparathyroidism, or other metabolic bone disease
  • History of chronic kidney disease (defined as CrCl < 30 ml/min)
Show all 15Show fewer
  • History of rheumatologic or autoimmune conditions
  • History of sarcoidosis
  • History of active or latent tuberculosis
  • History of HIV
  • History of hyperthyroidism
  • History of chronic glucocorticoid use defined as the equivalent of 5 mg of prednisone per day for more than 2 months within the last 6 months
  • History of use of medications known to affect calcium/vitamin D metabolism, bone metabolism, and immune response
  • Hypercalcemia
  • Hypercalcinuria

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • UCLA Clinical and Translational Research Center (CTRC)

    Los Angeles, California, 90095

  • University of California, Los Angeles

    Los Angeles, California, 90095

Other trials in United States

About this study

Official title: The Effects of Vitamin D3 Versus 25OHD3 (HyD) on Serum Vitamin D Metabolites and Markers of Mineral Metabolism and Immune Function

The purpose of this study is to compare the effects of two different forms of vitamin D supplements (vitamin D3 and 25-hyrdroxyvitamin D3 [25(OH)D3]) on vitamin D levels in the blood, and on markers of skeletal and immune health. This study is designed as a pilot study. A multi-ethnic cohort of 48 patients will be included (12 Caucasian, 12 African American, 12 Hispanic/Latino, 12 Asian/Asian American). Potential study candidates will undergo a screening visit during which a medical history will be taken, a physical exam performed, a dietary questionnaire administered, and blood collected. The purpose of the screening visit is to identify vitamin D-deficient (25-hydroxyvitamin D <20 ng/ml) individuals who are candidates for vitamin D supplementation. Eligible patients will then be randomly assigned to receive either vitamin D3 (2400 IU/day) or 25(OH)D3 (20 mcg/day) for 16 weeks. After initiating supplementation, study patients will return for follow-up visits at weeks 4, 8, and 16. At each visit, blood will be collected to assess vitamin D levels in the blood, as well as markers of skeletal and immune function. Participation in this study will therefore involve a total of 5 visits (1 screening visit, 1 randomization visit during which participants will receive their study supplements, 3 follow-up visits). After all data is collected, changes in vitamin D levels in the blood following supplementation with either vitamin D3 versus 25(OH)D3 will be determined, and correlated to markers of calcium balance and immune function. Knowledge gained from this study may have a significant impact on how vitamin D status is defined, and how vitamin D repletion is administered.

Being tested
Vitamin D, 25(OH)D3
Keywords
Hypovitaminosis D, Free 25-hydroxyvitamin D, Total 25-hydroxyvitamin D
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 DDrug

    Also called Cholecalciferol

    2400 IU/day by mouth for 16 weeks

  • 25(OH)D3Drug

    Also called Calcifediol, HyD

    20 micrograms/day by mouth for 16 weeks

Study groups in NCT02091219
Study groupRoleWhat they receive
25(OH)D3Experimental20 micrograms/day by mouth for 16 weeks
Receives: Drug: 25(OH)D3
Vitamin D3Experimental2,400 IU/day by mouth for 16 weeks
Receives: Drug: Vitamin D

What is being measured

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

  1. Change in total serum 25D

    Measured: 16 weeks

Secondary outcomes (8)
  1. Change in serum free 25D

    Measured: 16 weeks

  2. Change in serum total 1,25D

    Measured: 16 weeks

  3. Change in total free 1,25D

    Measured: 16 weeks

  4. Change in serum calcium

    Measured: 16 weeks

  5. Change in urinary calcium

    Measured: 16 weeks

  6. Change in serum iPTH

    Measured: 16 weeks

  7. Change in serum bone turnover markers

    Measured: 16 weeks

  8. Change in markers of immune function

    Measured: 16 weeks

Timeline

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

  1. First posted19 Mar 2014 (estimated)
  2. Study startJun 2014
  3. Primary completionDec 2019
  4. Study completion7 Dec 2019

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
Early Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02091219
Sponsor's protocol ID
UL1TR000124-1954
Other IDs
1P50AR063020-01, UL1TR000124
Status last verified
Apr 2021
First submitted
12 Mar 2014
Last updated
28 Apr 2021
Results posted
No
Data monitoring committee
No

Publications

  • Shieh A, Lee SM, Lagishetty V, Gottleib C, Jacobs JP, Adams JS. Pilot Trial of Vitamin D3 and Calcifediol in Healthy Vitamin D Deficient Adults: Does It Change the Fecal Microbiome? J Clin Endocrinol Metab. 2021 Nov 19;106(12):3464-3476. doi: 10.1210/clinem/dgab573.

    PubMed 34343292
  • Shieh A, Ma C, Chun RF, Wittwer-Schegg J, Swinkels L, Huijs T, Wang J, Donangelo I, Hewison M, Adams JS. Associations Between Change in Total and Free 25-Hydroxyvitamin D With 24,25-Dihydroxyvitamin D and Parathyroid Hormone. J Clin Endocrinol Metab. 2018 Sep 1;103(9):3368-3375. doi: 10.1210/jc.2018-00515.

    PubMed 29931358

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Vitamin D and 25(OH)D3 in people with Vitamin D Deficiency, run by University of California, Los Angeles at 2 sites 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 2 inclusion and 15 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 28 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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 total serum 25D (time frame: 16 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 NCT02091219, which also lists 2 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 28 Apr 2021.

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