New drug 608 aims to ease hidden arthritis pain
NCT ID NCT07349329
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a drug called 608 in 380 adults with non-radiographic axial spondyloarthritis, a form of arthritis that causes back pain and stiffness but doesn't show up on X-rays. Participants will receive either 608 or a placebo injection to see if the drug reduces pain and inflammation. The goal is to find a new treatment option for this condition.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 608 (a drug injection)
- What this could lead to
- If it works, this could offer a new treatment option for people with non-radiographic axial spondyloarthritis to control pain and inflammation.
- What could go wrong
- This is an early Phase 3 trial, so results are not yet known. The drug may not work better than placebo, and side effects are possible.
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 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 380 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Feb 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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 years and older
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Female and male patients at least 18 years of age at the time of screening. 2. Diagnosis of axial spondyloarthritis according to Ankylosing Spondylo Arthritis International Society (ASAS) axial spondyloarthritis criteria 3. Objective signs of inflammation (magnetic resonance imaging (MRI) or abnormal C-reactive protein) 4. Total back pain as measured by NRS ≥ 4 at baseline Exclusion Criteria: 1. Patients with other uncontrolled active inflammatory diseases. 2. Clinical laboratory tests and other tests that reveal abnormalities with clinical significance 3. Patients who have active Hepatitis B, Hepatitis C or HIV infections as determined by positive results at Screening. 4. History of cancer. 5. Known or suspected history of immunosuppression. 6. Known with allergic or intolerant to mometasone furoate spray or 608/placebo.
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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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Site 01
Beijing, 100730, China
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