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Brain blood flow study aims to uncover clues about aging

NCT ID NCT06629077

First seen Nov 01, 2025 · Last updated Jun 23, 2026 · Updated 41 times

Summary

This study looks at how brain blood flow changes when healthy adults aged 55-69 breathe differently or shift posture, using MRI scans. Participants will also receive a single dose of prazosin or a placebo to see how it affects blood flow. The goal is to better understand the brain's response to reduced blood flow, which could inform future research on age-related conditions.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of Wisconsin

    RECRUITING

    Madison, Wisconsin, 53705, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Prazosin

What this could lead to

If successful, this could help scientists understand how brain blood flow changes with age and posture, potentially guiding future treatments for conditions like dizziness or fainting.

What could go wrong

This is a small, early-phase study with only 36 participants, so results may not apply to everyone. Prazosin can cause dizziness or low blood pressure.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.