Could a vitamin d pill help stroke survivors think clearly again?
NCT ID NCT07767214
First seen Aug 17, 2026 · Last updated Aug 17, 2026
Summary
This trial tests whether high-dose vitamin D supplements can improve cognitive function in people who have had a stroke and developed thinking or memory problems. Participants will receive either vitamin D or a placebo for six months, and researchers will measure changes in cognitive tests and immune markers in the blood. The goal is to see if vitamin D can reduce inflammation and support brain recovery after a stroke.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Vitamin D2 (ergocalciferol) supplements
- What this could lead to
- If effective, vitamin D could become a simple, safe add-on therapy to help stroke survivors regain cognitive function.
- What could go wrong
- This is an early-stage trial, and results may not show a clear benefit. High-dose vitamin D can have side effects, and the immune effects are not yet proven.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Suzhou Hospital Affiliated to Anhui Medical University
Suzhou, Anhui, 234000, China
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