New Immune-Guiding drug takes on stubborn arthritis
NCT ID NCT06946199
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial is testing a new drug called cizutamig in 28 people with severe rheumatoid arthritis that hasn't responded to other treatments. The drug works by directing the immune system to attack certain cells involved in the disease. The main goal is to check safety, but researchers will also look for signs that the drug might help control arthritis.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- cizutamig (a drug that directs immune cells to attack certain cells involved in rheumatoid arthritis)
- What this could lead to
- If it works, this could point toward a new treatment option for people with hard-to-treat rheumatoid arthritis.
- What could go wrong
- This is a very early, small Phase 1 trial focused on safety, not proof of effectiveness. The drug may cause side effects or fail to improve arthritis symptoms.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 28 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2025
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. 18 to 75 years old at the time of signing the informed consent form 2. Diagnosis of adult-onset RA as defined by the 2010 ACR/EULAR classification criteria 3. Moderately to severely active RA. 4. Positive test results for RF and/or ACPA at Screening. Inadequate treatment response defined as either lack of clinical benefit or intolerability to treatment with tsDMARD and/or bDMARD Exclusion Criteria: 1. Inadequate clinical laboratory parameters at Screening 2. Patients with active infection 3. Receipt of live vaccine within 4 weeks prior to Screening 4. Presence of any concomitant autoimmune disease 5. History of progressive multifocal leukoencephalopathy 6. History of primary immunodeficiency or a hereditary deficiency of the complement system 7. Central nervous system disease 8. Presence of 1 or more significant concurrent medical conditions per investigator judgment 9. Have a diagnosis or history of malignant disease within 5 years 10. Serious mental illness, alcohol or drug abuse, dementia, or any other condition that would impair the patient's ability to receive the planned treatment or to understand informed consent at the study site as determined by local practice
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Wuhan Union Hospital
RECRUITINGWuhan, Hubei, 430000, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Smartphone app aims to catch rheumatoid arthritis before it takes hold
- A patient questionnaire may rival lab tests for spotting rheumatoid arthritis flares
- Could fewer pills mean same relief for rheumatoid arthritis?
- Can a single cell therapy calm multiple autoimmune diseases?
- Heart risk in rheumatoid arthritis: could a blood vessel drug help?
- Can talk therapy plus exercise beat arthritis fatigue?