Experimental antibody aims to quiet spinal inflammation without X-Ray damage

NCT ID NCT05242588

First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This phase 2 trial tests an experimental drug called JS005 in Chinese adults with active non-radiographic axial spondyloarthritis, a form of inflammatory back pain that does not yet show damage on X-rays. Participants receive either a low, medium, or high dose of JS005 or a placebo as a series of injections over 16 weeks. The study measures how well the drug reduces symptoms and inflammation, and checks for side effects.

What this could mean

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

Active substance
an experimental anti-IL-17A monoclonal antibody called JS005
What this could lead to
If successful, JS005 could offer a new treatment option for people with non-radiographic axial spondyloarthritis, reducing pain and inflammation.
What could go wrong
This is an early phase 2 trial with only 23 participants, so results may not apply to everyone. The drug may not work better than placebo or could have side effects.

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.

Non-Radiographic Axial Spondyloarthritis spondyloarthropathy

As listed by the trial registrant

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

Contacts and locations

Locations

  • Anhui Provincial Hospital

    Hefei, Anhui, 230001, China

  • First Affiliated Hospital of Kunming Medical University

    Kunming, Yunnan, 250063, China

  • First Affiliated Hospital of Shanxi Medical University

    Taiyuan, Shanxi, 650032, China

  • Nanfang Hospital of Nanfang Medical University

    Guangzhou, Guangdong, 510515, China

  • North Sichuan Medical College Affiliated Hospital

    Nanchong, Sichuan, 637000, China

  • People's Hospital of Xinjiang Uygur Autonomous Region

    Ürümqi, Xinjiang, 8300001, China

  • Pking University Shenzhen Hospital

    Shenzhen, Guangdong, 518036, China

  • Qilu Hospital of Shandong University

    Jinan, Shandong, 030001, China

  • Shanghai Changzheng Hospital

    Shanghai, Shanghai Municipality, 200003, China

  • Shantou University Medical Collge No.1 Affiliated Hospital

    Shantou, Guangdong, 515041, China

  • Shengjing Hospital of China medical University

    Shenyang, Liaoning, 110004, China

  • Shenzhen People's Hospital

    Shenzhen, Guangdong, 518001, China

  • Sun Yat-sen Memorial Sun Yat-sen University

    Guangzhou, Guangdong, 510120, China

  • The Affilated Hospital of Inner Mongdlia Medical University

    Hohhot, Inner Mongolia, 100000, China

  • The First Affiliated Hospital of China Medical University

    Shenyang, Liaoning, 110001, China

  • The First Affiliated Hospital of Xiamen University

    Xiamen, Fujian, 410011, China

  • The First Affiliated Hospital of Zhengzhou University

    Zhengzhou, Henan, 361001, China

  • The First Hospital of Jilin University

    Changchun, Jilin, 130021, China

  • The Second Affiliated Hospital of Dalian Medical University

    Dalian, Liaoning, 116023, China

  • The Second Affiliated Hospital of Zhejiang University,School of Medicine

    Hangzhou, Zhejiang, 450052, China

  • The Second Xiangya Hospital of Central South University

    Changsha, Hunan, 410013, China

  • The Third Xiangya Hospital of Central South University

    Changsha, Hunan, 361001, China

  • Tianjin Medical University General Hospital

    Tianjin, Tianjin Municipality, 300041, China

  • Tongji Hospital,Tongji Medical College of HUST

    Wuhan, Hubei, 430030, China

  • West China Hospital, Sichuan University

    Chengdu, Sichuan, 600041, China

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