Condition

Hypovitaminosis D clinical trials and research

• 5Clinical trials
• 3Countries

Newest Hypovitaminosis D clinical trials

All recruiting trials (5)

• Vitamin D3 and K2 for healthcare personnel

  This study tests whether daily vitamin D3 and/or K2 supplements or a placebo change blood vitamin levels and the gut microbiome in military healthcare personnel with low vitamin D.

  Recruiting Madigan Army Medical Center · Tacoma, Washington · NCT07199829

• Bone health, vitamin D, weight, and fractures in children

  See if blood markers (alkaline phosphatase, calcium, PTH, vitamin D), body weight, and calcium intake are linked to fractures in children aged 3–15 after low-energy trauma.

  Recruiting at 2 sites Paracelsus Medical University · Brixen, Bolzano and 1 other locations · NCT07143552

• Vitamin D3 effects on brain waves in men with epilepsy and low vitamin D

  This will test whether taking high‑dose vitamin D3 weekly for 8 weeks changes brain wave patterns in men (age 20–40) who have epilepsy and low vitamin D levels.

  Recruiting Bangladesh Medical University · Dhaka, Shahbag, Dhaka · NCT07096414

• San Raffaele registry of adults receiving vitamin D treatment

  This project will see how vitamin D supplements are used and affect adults with low vitamin D who attend the San Raffaele outpatient clinic.

  Recruiting IRCCS San Raffaele · Milan · NCT06481111

• Improving Vitamin D Levels with Different Treatments

  This study is testing which of two types of Vitamin D supplements works best for people with low Vitamin D levels to help improve their health.

  Recruiting Azienda Ospedaliero-Universitaria Consorziale Policlinico di Bari · Bari · NCT06138249

Related topics

Quick answers

How many Hypovitaminosis D clinical trials are recruiting right now?

5, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 3 countries. The most sites are in Italy (3 trials), Bangladesh (1 trial), United States (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.

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