NCT07321873 · Janssen Research & Development, LLC
A Study to Evaluate the Efficacy and Safety of JNJ-88545223 for the Treatment of Participants With Active Psoriatic Arthritis
(VELOTA)
What this study is about
The purpose of this study is to evaluate how well the study drug JNJ-88545223 works compared with a placebo (an inactive substance) in adults with active psoriatic arthritis (PsA). The study aims to see whether treatment with JNJ-88545223 can help reduce the signs and symptoms of PsA and improve joint and skin health.
View original scientific description
The purpose of this study is to evaluate how well the study drug JNJ-88545223 works compared with a placebo (an inactive substance) in adults with active psoriatic arthritis (PsA). The study aims to see whether treatment with JNJ-88545223 can help reduce the signs and symptoms of PsA and improve joint and skin health.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Have a diagnosis of psoriatic arthritis (PsA) for at least 3 months before the first administration of study intervention and meet classification criteria for Psoriatic Arthritis (CASPAR) at screening
- Have active PsA as defined by: (a) At least 3 swollen joints and at least 3 tender joints at screening and at baseline (Week 0/Day 1) based on the 66/68 joint assessment; AND (b) C-reactive protein (CRP) greater than or equal to (\>=) 0.1 milligrams per deciliter (mg/dL) at screening from the central laboratory
- Have \>= 1 of the following PsA subsets: distal interphalangeal joint involvement, polyarticular arthritis with absence of rheumatoid nodules, asymmetric peripheral arthritis, or spondylitis with peripheral arthritis
- Have active plaque psoriasis with at least one psoriatic plaque of \>= 2 centimeter (cm) diameter or nail changes consistent with psoriasis
- A female participant of childbearing potential must have a negative highly sensitive serum pregnancy test (Beta-hCG) at screening and a negative urine pregnancy test at Week 0 prior to administration of study intervention
Exclusion criteria
- Has a nonplaque form of psoriasis (for example, erythrodermic, guttate, or pustular)
- Has a history or current signs or symptoms of severe, progressive, or uncontrolled renal, hepatic, cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, hematologic, rheumatologic (except PsA), psychiatric, genitourinary, or metabolic disturbances
- Has suspected or known allergies, hypersensitivity, or intolerance to JNJ-88545223 or excipients used in the investigational medicinal product (IMP), including placebo (JNJ-88545223 investigator's brochure); or has a history of severe allergic reaction, angioedema, or anaphylaxis to drugs or food
- Has fibromyalgia or osteoarthritis symptoms that, in the opinion of the investigator, would have potential to interfere with efficacy assessments
- Currently has a malignancy or has a history of malignancy within 5 years prior to screening
Where
- Searcy, Arkansas
- Huntington Beach, California
- San Diego, California
- Cutler Bay, Florida
- Palmetto Bay, Florida
- Plantation, Florida
- Tampa, Florida
- Winter Park, Florida
- Marietta, Georgia
- Willowbrook, Illinois
- Evansville, Indiana
- Albuquerque, New Mexico
And 4 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 6, 2026 · Source of record for eligibility and locations