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Vitamin D DeficiencyNCT03463642

The Efficacy of Different Vitamin D Supplementation Delivery Methods

A study testing vitamin D3, Pill and orange syrup in people with Vitamin D Deficiency, run by University of Wolverhampton at 1 site in United Kingdom.

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

To test the efficacy of different vitamin D delivery methods on serum 25(OH)D. Participants randomly assigned to one of seven groups - three placebo groups and 4 active supplement groups receiving 100,000IU vitamin D3 Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Vitamin D Deficiency
What is being tested?
vitamin D3, Pill and orange syrup
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
62 participants
Where
1 siteUnited Kingdom
Study dates
2 Feb 2017to 4 Apr 2017
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 to 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • healthy, female

Who cannot join

  • any participant that was taking vitamin supplementation, had a skin condition that would prevent them from applying oil to their skin or were taking, or had been taking in the past 6-months, oestrogen based contraception

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • University of Wolverhampton

    Walsall, West Midlands, WS1 3BD

Other trials in United Kingdom

About this study

Official title: The Efficacy of Different Vitamin D Supplementation Delivery Methods on Serum 25(OH)D in Humans a Randomised Double-blind Placebo Trial

To test the efficacy of different vitamin D delivery methods on serum 25(OH)D. Participants randomly assigned to one of seven groups - three placebo groups and 4 active supplement groups receiving 100,000IU vitamin D3

Read the detailed description

Various delivery methods of vitamin D supplementation are available to consumers but there have been no studies providing evidence of whether one delivery method is superior to others. The researchers wanted to compare the delivery of 100,000IU vitamin D3 by three methods on serum 25(OH)D levels. Two methods of oral supplementation (pill [prolonged release] and liquid [immediate release]), and delivery through the skin (with and without a penetrator enhancer. Placebo groups were pill, oral liquid and skin applied oil

Being tested
vitamin D3, Pill, orange syrup, mineral oil, Penetrator
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 D3Dietary supplement

    100,000IU

  • PillDietary supplement

    Dicalcium phosphate, microcrystalline cellulose, silicium dioxide, magnesium stearate

  • orange syrupDietary supplement

    100 drops orange syrup

  • mineral oilOther

    Paraffinum Liquidum,Isopropyl Palmitate,Parfum

  • PenetratorDietary supplement

    Tangerine essential oil (10ml)

Study groups in NCT03463642
Study groupRoleWhat they receive
Vitamin D3 pillExperimental100 pills = 100,000IU + Dicalcium phosphate, microcrystalline cellulose, silicium dioxide, magnesium stearate
Receives: Dietary Supplement: vitamin D3; Dietary Supplement: Pill
Pill placeboPlacebo comparator100 pills = Dicalcium phosphate, microcrystalline cellulose, silicium dioxide, magnesium stearate
Receives: Dietary Supplement: Pill
Vitamin D3 oral liquidExperimental100 drops = 100,000IU in orange syrup
Receives: Dietary Supplement: vitamin D3; Dietary Supplement: orange syrup
Oral liquid placeboPlacebo comparator100 drops orange syrup
Receives: Dietary Supplement: orange syrup
Skin oil + Vitamin D3 + penetratorExperimental100,000IU + mineral oil+ Tangerine essential oil (10ml)
Receives: Dietary Supplement: vitamin D3; Other: mineral oil; Dietary Supplement: Penetrator
Skin oil + Vitamin D3Experimental100,000IU + mineral oil
Receives: Dietary Supplement: vitamin D3; Other: mineral oil
Skin oil placeboPlacebo comparatorSkin application: 100ml of mineral oil coloured with food colourant to match active oil sample
Receives: Other: mineral oil

What is being measured

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

  1. serum 25(OH)D

    Changes in serum 25(OH)D levels

    Measured: 4 weeks

Timeline

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

  1. First posted13 Mar 2018
  2. Study start2 Feb 2017
  3. Primary completion4 Apr 2017
  4. Study completion4 Apr 2017

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03463642
Sponsor's protocol ID
UoW116976
Status last verified
Mar 2018
First submitted
6 Mar 2018
Last updated
14 Mar 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ross AC, Manson JE, Abrams SA, Aloia JF, Brannon PM, Clinton SK, Durazo-Arvizu RA, Gallagher JC, Gallo RL, Jones G, Kovacs CS, Mayne ST, Rosen CJ, Shapses SA. The 2011 report on dietary reference intakes for calcium and vitamin D from the Institute of Medicine: what clinicians need to know. J Clin Endocrinol Metab. 2011 Jan;96(1):53-8. doi: 10.1210/jc.2010-2704. Epub 2010 Nov 29.

    PubMed 21118827
  • Stoll D, Dudler J, Lamy O, Hans D, Krieg MA, Aubry-Rozier B. Can one or two high doses of oral vitamin D3 correct insufficiency in a non-supplemented rheumatologic population? Osteoporos Int. 2013 Feb;24(2):495-500. doi: 10.1007/s00198-012-1962-5. Epub 2012 Mar 17.

    PubMed 22426953
  • Leventis P, Kiely PD. The tolerability and biochemical effects of high-dose bolus vitamin D2 and D3 supplementation in patients with vitamin D insufficiency. Scand J Rheumatol. 2009 Mar-Apr;38(2):149-53. doi: 10.1080/03009740802419081.

    PubMed 18991184
  • Wyon MA, Wolman R, Martin C, Galloway S. The efficacy of different vitamin D supplementation delivery methods on serum 25(OH)D: A randomised double-blind placebo trial. Clin Nutr. 2021 Feb;40(2):388-393. doi: 10.1016/j.clnu.2020.05.040. Epub 2020 Jun 6.

    PubMed 32703720

Questions about this trial

What is this clinical trial studying?

A study testing vitamin D3, Pill and orange syrup in people with Vitamin D Deficiency, run by University of Wolverhampton at 1 site in United Kingdom.

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 1 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 14 Mar 2018. 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 Kingdom. 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?

serum 25(OH)D (time frame: 4 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 NCT03463642, which also lists 4 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 14 Mar 2018; AzTrials last refreshed its copy on 6 Nov 2026.

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