Clinical trials
Vitamin D clinical trials
Below are recruiting vitamin d clinical trials, each written for real people, not researchers. We’re tracking 125 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07465497Enrolling by invitation
Preventing Chemo Brain with Prebiotics and Synbiotics
This trial tests whether taking a special blend of prebiotics and synbiotics (friendly bacteria and food for them) can help prevent or reduce memory and thinking problems that sometimes happen during chemotherapy for breast cancer.
Zapopan, JaliscoAges 18 years+ - NCT05925309Recruiting
Oral antibiotics to prevent bile duct inflammation after Kasai surgery
This trial studies whether giving oral antibiotics before symptoms start can lower the chance of cholangitis (bile duct infection/inflammation) after Kasai portoenterostomy. It may help protect your child’s bile flow and reduce painful or serious infections after surgery.
Shanghai, Shanghai MunicipalityAges 2 weeks–3 months - NCT06508099RecruitingPhase 2
Vitamin A and D supplements after stem cell transplant
This trial tests whether taking vitamin A and D after a stem cell transplant can help improve recovery. It is for people with certain blood cancers who have a matched donor and are in remission or have low disease activity.
Saint PetersburgAges 18 years+ - NCT07256769Recruiting
Vitamin K, D-chiro inositol and α-lactalbumin for bone health
This trial tests a combination of vitamin K, D-chiro inositol, and α-lactalbumin to help maintain bone strength in women with breast cancer who are on hormone therapy and have low vitamin D. It aims to see if these supplements improve bone health while you take a standard bone medication (alendronate).
Latina, ItalyAges 35–70 - NCT06327581Recruiting
Microneedling with creams for patchy hair loss
This trial tests if microneedling with either lactic acid, vitamin D3, or a steroid cream helps regrow hair in people with patchy alopecia areata (small bald spots).
ZagazigAges 16 years+
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Common questions
- Are there clinical trials for vitamin d?
- Yes. Clin2 currently lists 125 recruiting vitamin d studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a vitamin d trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a vitamin d trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.