Could breathing hydrogen protect the aging brain?

NCT ID NCT07757542

First seen Aug 11, 2026 · Last updated Aug 12, 2026 · Updated 1 time

Summary

This study tests whether inhaling a low concentration of hydrogen gas each day is safe and might help people with mild cognitive impairment. Participants, aged 50 to 80, will breathe in 4% hydrogen for one hour daily over 12 weeks, followed by 12 weeks without it. Researchers will monitor for side effects and use memory and naming tests to see if cognitive function changes. The goal is to gather initial safety data and see if this approach warrants larger studies.

What this could mean

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

Active substance
Molecular hydrogen gas administered by inhalation
What this could lead to
If safe and effective, daily hydrogen inhalation could offer a simple, non-drug way to help preserve memory and thinking in people with mild cognitive impairment.
What could go wrong
This is a small pilot study, not designed to prove effectiveness. It focuses on safety and feasibility, and results may not generalize. The therapy's benefits are uncertain.

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Conditions

The condition(s) this trial relates to.

Cognitive Dysfunction Respiratory Aspiration

As listed by the trial registrant

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

Contacts and locations

Locations

  • Cerebrovaskularni poradna s.r.o.

    RECRUITING

    Ostrava, Moravian-Silesian Region, 70200, Czechia

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