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New drug 608 aims to ease hidden arthritis pain

NCT ID NCT07349329

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 380 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Feb 2029

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

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.

Non-Radiographic Axial Spondyloarthritis spondyloarthropathy

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.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Site 01

    Beijing, 100730, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.