Red light therapy: a new way to boost blood flow?

NCT ID NCT02370199

First seen Jun 27, 2026 ยท Last updated Jun 27, 2026

Summary

This study looks at whether shining red light on the leg can increase blood flow in healthy adults. Forty participants will receive red light and a contrast agent called Definity to measure blood flow with ultrasound. The goal is to learn more about how light affects circulation.

What this could mean

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

Active substance
670 nm red light and octafluoropropane (Definity) contrast agent
What this could lead to
If successful, this could help understand how red light affects blood flow, possibly leading to new therapies for circulation problems.
What could go wrong
This is a small, early-stage study in healthy people, so results may not apply to patients. The contrast agent carries rare risks like allergic reactions.

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Medical College of Wisconsin

    RECRUITING

    Milwaukee, Wisconsin, 53226, United States

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