Ancient herb Gou-Teng put to the test against early memory decline

NCT ID NCT04532697

Completed Disease control Sponsor: Chinese University of Hong Kong Source: ClinicalTrials.gov ↗

First seen Jul 27, 2026 · Last updated Jul 28, 2026 · Updated 1 time

Summary

This pilot study tests whether the Chinese herb Uncaria rhynchophylla (Gou-Teng) can slow cognitive decline in people aged 65 and older with mild cognitive impairment. Participants take the herb or a placebo twice daily for 16 weeks, with follow-up for 8 more weeks. Researchers will measure changes in cognitive function and brain health using eye scans.

What this could mean

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

Active substance: a Chinese herbal medicine called Uncaria rhynchophylla (Gou-Teng)
What this could lead to: If effective, this herb could offer a complementary option to slow cognitive decline in older adults with mild cognitive impairment.
What could go wrong: This is a small pilot study, so results may not be conclusive. The herb's benefits and safety are not yet proven, and it may not work for everyone.

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.

Cognitive Dysfunction

As listed by the trial registrant

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

MILD COGNITIVE IMPAIRMENT WHITE MATTER HYPERINTENSITY

Contacts and locations

Locations

The Chinese University of Hong Kong

Hong Kong, Hong Kong

More trials for these conditions

Other studies related to the condition(s) this trial covers.