Eligibility Module
The Eligibility Module contains detailed information about who can participate in the clinical trial. This includes eligibility criteria, age restrictions, gender requirements, healthy volunteer status, and study population descriptions, helping researchers understand who is eligible to participate in the study.
Eligibility Module path is as follows:
Study -> Protocol Section -> Eligibility Module
Eligibility Module
Ignite Creation Date:
2025-12-25 @ 1:40 AM
Ignite Modification Date:
2025-12-25 @ 1:40 AM
NCT ID:
NCT04207294
Eligibility Criteria:
Inclusion Criteria:
* · Free-living, apparently healthy Caucasian adults
* Aged 18-65 years at Recruitment
* Body Mass Index (BMI) ≥18.5 and \<25kg/m2
* If consuming vitamin D supplements, willing to discontinue 4 weeks prior and for duration of study
* Non-smokers
Exclusion Criteria:
* · Non-Caucasian adults
* Adults \<18 or \>65 years at recruitment
* Taking vitamin D supplement and not willing to discontinue vitamin D supplementation for 4 weeks prior to and for duration of study
* Current smokers
* Pregnant/lactating females
* Use of tanning facilities or winter vacation planned during the intervention period to a location expected to increase cutaneous synthesis
* Severe medical illness
* Medications which interfere with vitamin D metabolism e.g. steroid medications (e.g. prednisone), weight loss drug orlistat (e.g. Xenical and Alli), cholesterol-lowering drug cholestyramine (e.g. Questran, LoCholest and Prevalite), seizure drugs Phenobarbital and Dilantin, anti-tuberculosis, statins or thiazide diuretics
* Intestinal malabsorption syndrome
* Excessive alcohol use (\>14 units/ week)
Healthy Volunteers:
True
Sex:
ALL
Minimum Age:
18 Years
Maximum Age:
65 Years
Study:
NCT04207294
Study Brief:
Protocol Section:
NCT04207294