New drug shows promise for rare Muscle-Weakening disease

NCT ID NCT04302103

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

Summary

This study tested an experimental drug called RC18 in 29 adults with systemic myasthenia gravis, a condition that causes muscle weakness. The goal was to see if RC18 is safe and can help control symptoms. Participants received the drug while continuing their usual treatments, and researchers measured changes in muscle strength over 24 weeks.

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Conditions

The condition(s) this trial relates to.

myasthenia gravis

As listed by the trial registrant

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

Contacts and locations

Locations

  • Affiliated Hospital of North Sichuan Medical College

    Nanchong, Sichuan, China

  • Affiliated Hospital of Zunyi Medical University

    Zunyi, Guizhou, China

  • Beijing Anzhen Hospital, Capital Medical University

    Beijing, China

  • Beijing Hospital

    Beijing, China

  • Beijing Tiantan Hospital, Capital Medical University

    Beijing, China

  • Beijing Tongren Hospital, Capital Medical University

    Beijing, China

  • First Hospital of Shanxi Medical University

    Taiyuan, Shanxi, China

  • Huashan Hospital, Fudan University

    Shanghai, China

  • Jiangxi Provincial People's Hospital

    Nanchang, Jiangxi, China

  • Nanyang First People's Hospital

    Nanyang, Henan, China

  • The First Affiliated Hospital of Bengbu Medical University

    Bengbu, Anhui, China

  • The First Affiliated Hospital of Chongqing Medical University

    Chongqing, China

  • The First Affiliated Hospital of Jinzhou Medical University

    Jinzhou, Liaoning, China

  • The First Affiliated Hospital of USTC;Anhui Provincial Hospital

    Hefei, Anhui, China

  • The First Affiliated Hospital of Wenzhou Medical University

    Wenzhou, Zhejiang, China

  • The First Hospital of Jilin University

    Changchun, Jilin, China

  • The Second Affiliated Hospital of Air Force Medical University

    Xi'an, Shaanxi, China

  • The Second Affiliated Hospital of Dalian Medical University

    Dalian, Liaoning, China

  • The Second Hospital & Clinical medical school ; Lanzhou University

    Lanzhou, China

  • The Third Affiliated Hospital, Sun Yat-sen University

    Guangzhou, China

  • West China Hospital, Sichuan University

    Xi'an, Shaanxi, China

  • West China School of Medicine;West China Hospital of Sichuan University

    Chengdu, Sichuan, China

  • Xiangya Hospital of Central South University

    Changsha, Hunan, China

  • Zhejiang Provincial People's Hospital

    Hangzhou, Zhejiang, China