Could a Viagra-Like drug slow Alzheimer's? new trial aims to find out
NCT ID NCT07172815
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tests whether tadalafil, a drug typically used for erectile dysfunction, is safe and can help people with early Alzheimer's or mild cognitive impairment. Over one year, 244 participants will take either tadalafil or a placebo. Researchers will check for side effects and measure changes in memory and thinking skills.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- tadalafil (a drug used for erectile dysfunction, repurposed here)
- What this could lead to
- If it works, this could point toward a new way to slow memory loss in early Alzheimer's by improving blood flow in the brain.
- What could go wrong
- This is a mid-stage trial with only 244 people, so results may not apply to everyone. Tadalafil can cause side effects like headache or low blood pressure, and it's not yet proven to help Alzheimer's.
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.
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