Condition
Vitamin D 25-Hydroxylase Deficiency clinical trials and research
As of November 12, 2026, Find a Trial lists 2 Vitamin D 25-Hydroxylase Deficiency clinical trials that are recruiting, at sites in 2 countries (most in Pakistan (1), Poland (1)). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 2Clinical trials
- 2Countries
All recruiting trials (2)
-
Vitamin D, nutrition, and brain health in Pakistani schoolchildren
This study tests whether adding vitamin D, trout, milk, and eggs, plus dietary education, can improve vitamin D levels and neurocognitive outcomes in schoolchildren aged 6-12 in Pakistan.
-
High-Dose Vitamin D3 in Athletes
This study tests whether taking 4,000 IU of vitamin D3 daily for 4 or 8 weeks will change hormones, neuromuscular function, cognition, and body composition in athletes who may be vitamin D deficient.
Related topics
Quick answers
How many Vitamin D 25-Hydroxylase Deficiency clinical trials are recruiting right now?
2, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in Pakistan (1 trial), Poland (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.