New sleep aid aims to outperform standard insomnia treatment

NCT ID NCT06975514

Completed Symptom relief Sponsor: Shanghai Haiyan Pharmaceutical Technology Co., Ltd. Source: ClinicalTrials.gov ↗

First seen Jun 29, 2026 · Last updated Jun 30, 2026 · Updated 1 time

Summary

This clinical trial tests whether a new drug called YZJ-1139 can help people with insomnia sleep better than the commonly used medication zolpidem. Adults aged 18 to 64 with insomnia disorder take either YZJ-1139 or zolpidem daily for 28 days. Researchers measure sleep quality using both overnight sleep lab tests and daily sleep diaries to see which drug works better and is safer.

What this could mean

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

Active substance: YZJ-1139
What this could lead to: If successful, YZJ-1139 could offer a new treatment option for people with insomnia, potentially improving sleep quality with fewer side effects than current medications.
What could go wrong: This is a Phase 3 trial, but results may not show a significant advantage over zolpidem. Side effects and individual responses vary, and long-term safety is not yet fully known.

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Conditions

The condition(s) this trial relates to.

insomnia

As listed by the trial registrant

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

INSOMNIA DISORDER

Contacts and locations

Locations

ChengDu Second People's Hospital

Chengdu, China
ChongQing Traditional Chinese Medicine Hospital

Chongqing, China
Deyang People's Hospital

Deyang, China
Peking University People's Hospital

Beijing, China
ShengJing Hospital Of China Medical University

Shenyang, China
SuZhou GuangJi Hospital

Suzhou, China
The First Affiliated Hospital of Jinan University (Guangzhou Overseas Chinese Hospital)

Guangzhou, China
The First Affiliated Hospital of Ningbo University

Ningbo, China
The First Affiliated Hospital of Shandong First Medical University (Qianfoshan Hospital)

Jinan, China
The Second Affiliated Hospital Of NanChang University

Nanchang, China
The Second Affiliated Hospital of Soochow University

Suzhou, China
The Second Affiliated Hospital of Zhengzhou University

Zhengzhou, China
The Third Hospital of Hebei Medical University

Shijiazhuang, China
Tianjin Anding Hospital

Tianjin, China
Wuhan No.1 Hospital

Wuhan, China
Yan'an University Xianyang Hospital

Yan’an, China

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