New hope for rare liver disease: experimental drug CS0159 enters Mid-Stage trial

NCT ID NCT05896137

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

Summary

This Phase 2 trial tests an experimental drug called CS0159 in 50 people with primary sclerosing cholangitis (PSC), a rare liver disease. The study has a 12-week placebo-controlled phase followed by a 40-week open-label period to check safety and how well the drug works. Researchers will measure side effects and changes in liver enzyme levels.

What this could mean

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

Active substance

CS0159 (oral drug)

What this could lead to

If successful, this could point toward a new treatment to control primary sclerosing cholangitis and reduce liver damage.

What could go wrong

This is an early Phase 2 trial with only 50 participants, so results may not apply broadly. The drug may not improve outcomes or could cause side effects.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Cholangitis, Sclerosing primary sclerosing cholangitis

As listed by the trial registrant

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

Contacts and locations

Locations

  • Beijing Friendship Hospital, Captail Medcial University

    Beijing, Beijing Municipality, 100050, China

  • Beijing YouAn Hostital, Captial Medical University

    Beijing, Beijing Municipality, 100069, China

  • Peking Union Medical College Hospital

    Beijing, Beijing Municipality, 100730, China

  • Qilu Hospital of Shandong University

    Jinan, Shandong, China

  • Renji Hospital, Shanghai Jiao Tong University School of Medicine

    Shanghai, Shanghai Municipality, 200120, China

  • Shaoyifu Hospital of Zhejiang University Medical

    Hangzhou, Zhejiang, 310000, China

  • The First Affiliated Hospital of USTC Anhui Provincial Hospital

    Hefei, Anhui, China

  • The First Affiliated Hospital,Zhejiang University School of Medicine

    Hangzhou, Zhejiang, China

  • The First Bethune Hospital of Jilin University

    Changchun, Jilin, China

  • The Seconed Xiangya Hospital of Central South University

    Changsha, Hunan, 410011, China

  • Wuhan Union Hospital of China

    Wuhan, Hubei, 430022, China