Ancient herbal sleep aids put to the test with modern brain monitoring

NCT ID NCT07735390

First seen Jul 30, 2026 · Last updated Aug 07, 2026 · Updated 2 times

Summary

This pilot trial compares two traditional Chinese herbal formulas — Chaihushugan Decoction and Wen Dan Tang — for treating chronic insomnia. Adults with chronic insomnia will take one of the two herbal granules three times daily for eight weeks. Unlike many herbal studies, this one uses objective sleep trackers like polysomnography alongside standard questionnaires to measure sleep quality. The goal is to see which formula may work better and to build scientific evidence for these ancient remedies.

What this could mean

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

Active substance
two traditional Chinese herbal formulas: Chaihushugan Decoction and Wen Dan Tang
What this could lead to
If one formula proves more effective, it could offer a clearer, evidence-based herbal option for managing chronic insomnia.
What could go wrong
This is a very small pilot trial with only 24 participants, so results may not apply broadly. Herbal formulas can also cause side effects or interact with other medications.

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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.

Contacts and locations

Locations

  • Tainan Hospital, Ministry of Health and Welfare

    RECRUITING

    Tainan, Taiwan

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