New pill shows promise for rare joint tumor in Late-Stage trial

NCT ID NCT05804045

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 3 trial tests whether the drug Pimicotinib (ABSK021) can shrink tumors and improve symptoms in people with tenosynovial giant cell tumor (TGCT), a rare, non-cancerous growth in joints that cannot be surgically removed. About 94 adults will receive either the drug or a placebo for 24 weeks, followed by open-label treatment. The main goal is to see how many patients respond with tumor shrinkage.

What this could mean

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

Active substance

Pimicotinib (ABSK021)

What this could lead to

If it works, this could offer a new treatment option for people with TGCT that cannot be removed by surgery, potentially shrinking tumors and easing symptoms.

What could go wrong

This is a relatively small Phase 3 trial, and the drug may not prove more effective than placebo. Side effects are possible, and long-term benefits are not yet known.

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.

Giant Cell Tumor of Tendon Sheath tenosynovial giant cell tumor tenosynovial giant cell tumor, diffuse type

As listed by the trial registrant

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

Contacts and locations

Locations

  • Beijing Jishuitan Hospital

    Beijing, China

  • Duke University Medical Center

    Durham, California, 27710, United States

  • Fondazione IRCCS Istituto Nazionale dei Tumori

    Milan, Italy

  • Fred Hutchinson Cancer Center

    Seattle, Washington, 98109, United States

  • Fundacion Jimenez Diaz

    Madrid, 28040, Spain

  • Guangdong Provincial People's Hospital

    Guangzhou, Guangdong, China

  • Henan Cancer Hospital

    Zhengzhou, Henan, China

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

  • Hospital Universitari Vall d'Hebron

    Barcelona, Spain

  • Hunan Provincial People's Hospital

    Changsha, Hunan, China

  • IRCCS Istituto Ortopedico Rizzoli

    Bologna, Italy

  • Leiden University Medical Center

    Leiden, 2333, Netherlands

  • Liaoning Cancer Hospital&Institute

    Shenyang, Liaoning, China

  • Maria Sklodowska-Curie National Research Institute of Oncology

    Warsaw, Poland

  • McGill University Health Center

    Montreal, Canada

  • Nanjing Drum Tower hospital

    Nanjing, Jiangsu, China

  • Ospedale di Prato

    Prato, Italy

  • Peking University People's Hospital

    Beijing, Beijing Municipality, China

  • Precision NextGen Oncology

    Beverly Hills, California, 90212, United States

  • Princess Margaret Cancer Center

    Toronto, Canada

  • Roswell Park Comprehensive Cancer Center

    Buffalo, New York, 14263, United States

  • Shanghai General Hospital

    Shanghai, Shanghai Municipality, China

  • The Affiliated Hospital of Guizhou Medical University

    Guiyang, Guizhou, China

  • The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture

    Enshi, Hubei, China

  • The Cleveland Clinic Foundation

    Cleveland, Ohio, 44195, United States

  • The First Affiliated Hospital of Bengbu Medical College

    Bengbu, Anhui, China

  • The First Affiliated Hospital of Fujian Medical University

    Fuzhou, Fujian, China

  • The First Affiliated Hospital of Jinan University

    Guangzhou, Guangdong, China

  • The First Affiliated Hospital of Xinjiang Medical University

    Ürümqi, Xinjiang, China

  • The First Affiliated Hospital, Sun Yat-sen University

    Guangzhou, Guangdong, China

  • The Ohio State University

    Columbus, Ohio, 43210, United States

  • The Second Affiliated Hospital Zhejiang University School of Medicine

    Hangzhou, Zhejiang, China

  • The Second Hospital of Shanxi Medical University

    Taiyuan, Shanxi, China

  • The Second Xiangya Hospital of Central South University

    Changsha, Hunan, China

  • The University of Texas M.D. Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology

    Wuhan, Hubei, China

  • Weifang People's Hospital

    Weifang, Shandong, China

  • West China Hospital Sichuan University

    Chengdu, Wuhan, China

  • Xi'an Honghui Hospital

    Xi’an, Shanxi, China

  • Zhejiang Cancer Hospital

    Hangzhou, Zhejiang, China