Clinical trial No longer in our active list Phase 2 Interventional Ages 18 to 75

Evaluating a new CAR-T therapy for myositis

Official title: A Phase 2, Randomized, Open-label, Controlled Study to Evaluate the Efficacy and Safety of Rapcabtagene Autoleucel Versus Comparator in Participants With Severe Refractory Idiopathic Inflammatory Myopathies (IIM)

Run by Novartis · NCT06665256 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing a new CAR-T therapy to see if it can help people with severe myositis who haven't responded to other treatments.

More Idiopathic Inflammatory Myopathies trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment123 (estimated)
SponsorNovartis
Industry-sponsored
Drugs / interventionsCAR-T
Locations55 sites (Birmingham, Alabama and 54 other locations)
Trial IDNCT06665256 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 65 with a diagnosis of severe myositis who have not adequately responded to previous treatments.

Probably not a fit

Patients with other inflammatory myopathies or those with severe muscle damage or inadequate organ function may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 2 clinical trial aims to assess the efficacy and safety of rapcabtagene autoleucel, a chimeric antigen receptor T cell therapy, in patients with severe refractory idiopathic inflammatory myopathies (IIM). The study includes a lead-in cohort receiving the therapy and a randomized cohort comparing it to an active control. Participants will be monitored for two years, followed by a long-term follow-up period lasting up to 15 years. The trial is designed to provide insights into the potential benefits of CAR-T therapy for this challenging condition.

Why it matters

Potential benefit: If successful, this therapy could offer a new treatment option for patients with severe myositis who have not responded to existing therapies.

How similar studies have gone: While CAR-T therapies have shown promise in other conditions, this specific application in myositis is relatively novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

1. Men and women, aged ≥ 18 and ≤75 years, with a diagnosis of probable or definite myositis according to American College of Rheumatology/European League Against Rheumatism 2017 (ACR/EULAR 2017) criteria
2. Participants who had inadequate response to prior therapy
3. Diagnosed with active disease
4. Participant must meet criteria for severe myositis

Key Exclusion Criteria:

1. Any condition during Screening that could prevent a complete washout of medications or could otherwise make the participant ineligible for anti-CD19 CAR-T therapy and further participation in the study
2. BMI at Screening of ≤17 or ≥40 kg/m2
3. Severe muscle damage at Screening
4. Inadequate organ function
5. Hypersensitivity and/or contraindications to any product (including its ingredients) to be given to the participant as per the study protocol
6. Other inflammatory and non-inflammatory myopathies
7. Any medical conditions that are not related to IIM that would jeopardize the ability of the participant to tolerate CD19 CAR-T cell therapy

Other protocol-defined inclusion/exclusion criteria may apply.

Where it's running

  • University Of Alabama
    Birmingham, Alabama, United States
    Recruiting
  • FL Medical Clinic Orlando Health
    Zephyrhills, Florida, United States
    Recruiting
  • Northwestern University
    Chicago, Illinois, United States
    Recruiting
  • Northwestern University
    Chicago, Illinois, United States
    Recruiting
  • University Of Iowa
    Iowa City, Iowa, United States
    Recruiting
  • LDS Hospital
    Salt Lake City, Utah, United States
    Recruiting
Show 44 more locations
  • Novartis Investigative Site
    Brest, France
    Recruiting
  • Novartis Investigative Site
    Lyon, France
    Recruiting
  • Novartis Investigative Site
    Paris, France
    Recruiting
  • Novartis Investigative Site
    Rennes, France
    Recruiting
  • Novartis Investigative Site
    Cologne, North Rhine-Westphalia, Germany
    Recruiting
  • Novartis Investigative Site
    Leipzig, Saxony, Germany
    Recruiting
  • Novartis Investigative Site
    Jena, Thuringia, Germany
    Recruiting
  • Novartis Investigative Site
    Aachen, Germany
    Recruiting
  • Novartis Investigative Site
    Hamburg, Germany
    Recruiting
  • Novartis Investigative Site
    Mainz, Germany
    Recruiting
  • Novartis Investigative Site
    Nuremberg, Germany
    Recruiting
  • Novartis Investigative Site
    Ulm, Germany
    Recruiting
  • Novartis Investigative Site
    Haifa, Israel
    Recruiting
  • Novartis Investigative Site
    Ramat Gan, Israel
    Recruiting
  • Novartis Investigative Site
    Tel Aviv, Israel
    Recruiting
  • Novartis Investigative Site
    Brescia, Bs, Italy
    Recruiting
  • Novartis Investigative Site
    Monza, Mb, Italy
    Recruiting
  • Novartis Investigative Site
    Milan, Mi, Italy
    Recruiting
  • Novartis Investigative Site
    Sapporo, Hokkaido, Japan
    Recruiting
  • Novartis Investigative Site
    Kanazawa, Ishikawa-ken, Japan
    Recruiting
  • Novartis Investigative Site
    Yokohama, Kanagawa-ku, Japan
    Recruiting
  • Novartis Investigative Site
    Sendai, Miyagi, Japan
    Recruiting
  • Novartis Investigative Site
    Suita, Osaka, Japan
    Recruiting
  • Novartis Investigative Site
    Izumo, Shimane, Japan
    Recruiting
  • Novartis Investigative Site
    Bunkyo-ku, Tokyo, Japan
    Recruiting
  • Novartis Investigative Site
    Bunkyo-ku, Tokyo, Japan
    Recruiting
  • Novartis Investigative Site
    Shinjuku-ku, Tokyo, Japan
    Recruiting
  • Novartis Investigative Site
    Fukuoka, Japan
    Recruiting
  • Novartis Investigative Site
    Kyoto, Japan
    Recruiting
  • Novartis Investigative Site
    Amsterdam, North Holland, Netherlands
    Recruiting
  • Novartis Investigative Site
    Riyadh, Saudi Arabia
    Recruiting
  • Novartis Investigative Site
    Singapore, Singapore
    Recruiting
  • Novartis Investigative Site
    Singapore, Singapore
    Recruiting
  • Novartis Investigative Site
    Singapore, Singapore
    Recruiting
  • Novartis Investigative Site
    Santiago Compostela, A Coruna, Spain
    Recruiting
  • Novartis Investigative Site
    Santander, Cantabria, Spain
    Recruiting
  • Novartis Investigative Site
    Pamplona, Navarre, Spain
    Recruiting
  • Novartis Investigative Site
    Barcelona, Spain
    Recruiting
  • Novartis Investigative Site
    Córdoba, Spain
    Recruiting
  • Novartis Investigative Site
    Madrid, Spain
    Recruiting
  • Novartis Investigative Site
    Málaga, Spain
    Recruiting
  • Novartis Investigative Site
    Salamanca, Spain
    Recruiting
  • Novartis Investigative Site
    Geneva, Switzerland
    Recruiting
  • Novartis Investigative Site
    Kaohsiung City, Taiwan
    Recruiting

+5 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.