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临床试验/NCT02608164
NCT02608164已完成不适用

A Comparison of Capsules and Oral Spray Solution as Methods of Delivering Vitamin D3 and Raising Status: a Randomised Crossover Study

University of Ulster2 个研究点 分布在 1 个国家目标入组 22 人开始时间: 2015年8月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
22
试验地点
2
主要终点
Total 25-hydroxyvitamin D concentration

研究概览

简要总结

The aim of the study is to compare the effectiveness of a vitamin D3 oral spray solution with capsules at raising vitamin D status over winter.

This randomised crossover trial will aim to recruit a total of 22 healthy participants for a total of two 4-week interventions separated by a 10-week washout.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Crossover
主要目的
Basic Science
盲法
None

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Apparently healthy
  • Over the age of 18

排除标准

  • Those that intend to consume a supplement containing vitamin D at any point during the study
  • Those under the age of
  • Individuals that are on prescribed medication that is known to affect vitamin D metabolism
  • Those following a vegan diet
  • Sun-bed users
  • Participants that are planning a sun holiday during the study

结局指标

主要结局

Total 25-hydroxyvitamin D concentration

时间窗: At baseline and weeks 4, 14 and 18

Total 25-hydroxyvitamin D concentration will be determined using liquid chromatography-tandem mass spectrometry in collected serum samples

次要结局

  • Biomarkers of vitamin D metabolism(At baseline and weeks 4, 14 and 18)
  • Dietary vitamin D intake(At week 18 only)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Dr Pamela Magee

Dr Pamela Magee

University of Ulster

研究点 (2)

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