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A Study of JNJ-67484703 in Participants With Active Rheumatoid Arthritis

A Multicenter, Double-blind, Placebo-controlled, Randomized, Multiple Dose Study to Assess the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of JNJ-67484703 in Participants With Active Rheumatoid Arthritis

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04985812
Enrollment
44
Registered
2021-08-02
Start date
2021-10-18
Completion date
2023-05-18
Last updated
2025-05-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rheumatoid Arthritis

Brief summary

The purpose of this study is to evaluate safety and tolerability of JNJ-67484703 administrations in participants with active rheumatoid arthritis (RA).

Detailed description

JNJ-67484703 is a humanized immunoglobulin G1 kappa (huIgG1κ) antibody that is being developed as a treatment for systemic autoimmune disorders. The primary hypothesis of this study is that treatment with JNJ-67484703 as compared to placebo will result in a similar tolerability and safety profile, as a measure of participants with abnormalities in vital signs, physical examinations, and laboratory safety tests. This study will be conducted in 3 phases: screening phase (up to 6 weeks), treatment phase (up to 10 weeks), and follow-up phase (up to 14 weeks). The duration of study participation will be approximately 30 weeks. Safety assessment like electrocardiogram (ECG), adverse events will be performed during the study. Efficacy assessment like joint assessments, pain assessments, RA joint pain severity assessment, patient's and physician's global assessment of disease activity, health assessment questionnaires, duration of morning stiffness, functional assessment of chronic illness therapy-fatigue will be performed during the study.

Interventions

DRUGJNJ-67484703

Participants will receive JNJ-67484703.

DRUGPlacebo

Participants will receive placebo to JNJ-67484703.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Demonstrated an inadequate response to, or loss of response or intolerance to: at least 1 conventional synthetic disease-modifying antirheumatic drug (csDMARD) and/or up to 2 biologic DMARD (bDMARD)/targeted synthetic DMARD (tsDMARD) * Have C-reactive protein (CRP) greater than or equal to (\>=) 0.3 milligrams per deciliter (mg/dL) at screening * Medically stable on the basis of physical examination, medical history, vital signs, and 12-lead electrocardiogram (ECG) performed at screening * Have a diagnosis of rheumatoid arthritis (RA) (American College of Rheumatology \[ACR\]/ European League Against Rheumatism \[EULAR\] criteria 2010) * Body weight within the range of 50.0 kilograms (kg) to 120.0 kg, inclusive, and have a body mass index (BMI) of 19.0 kilograms per meter square (kg/m\^2) to 32.0 kg/m\^2, inclusive * All women must have a negative highly sensitive serum (beta-human chorionic gonadotropin \[beta-hCG\]) at screening

Exclusion criteria

* Known allergies, hypersensitivity, or intolerance to any biologic medication or excipients of JNJ-67484703 * Has a diagnosed or reported history or current signs or symptoms indicating severe, progressive, or uncontrolled hepatic, renal, cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, hematologic, rheumatologic, psychiatric, or metabolic disturbances * Have other known inflammatory diseases that might confound the evaluations of benefit from JNJ-67484703 therapy * Have a history of any clinically significant adverse reaction to murine or chimeric proteins, including, but not limited to, allergic reactions * Have a history of or currently have felty's syndrome

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants with Treatment-emergent Adverse Events (TEAEs)Up to 24 weeksAn adverse event (AEs) is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. TEAEs are AEs with onset during the treatment phase or that are a consequence of a pre-existing condition that has worsened since baseline.
Percentage of Participants with Treatment-emergent Serious Adverse Events (SAEs)Up to 24 weeksA serious adverse event based on International Council for Harmonization (ICH) and European Union (EU) guidelines on pharmacovigilance for medicinal products for human use is any untoward medical occurrence that at any dose: a) results in death; b) is life-threatening (the participant was at risk of death at the time of the event. It does not refer to an event that hypothetically might have caused death if it were more severe.); c) requires inpatient hospitalization or prolongation of existing hospitalization; d) results in persistent or significant disability/incapacity; e) Is a congenital anomaly/birth defect; f) is a suspected transmission of any infectious agent via a medicinal product.
Percentage of Participants with TEAEs by System Organ Class (SOC) with a Frequency Threshold of 5 Percent (%) or MoreUp to 24 weeksPercentage of participants with TEAEs by SOC with a frequency threshold of 5% or more by study intervention will be reported. TEAEs are AEs with onset during the treatment phase or that are a consequence of a pre-existing condition that has worsened since baseline.
Percentage of Participants with Abnormalities in Vital SignsUp to 24 weeksPercentage of participants with abnormalities in vital signs (temperature \[oral or tympanic\], pulse/heart rate, respiratory rate and blood pressure \[systolic and diastolic\]) will be reported.
Percentage of Participants with Abnormalities in Physical ExaminationUp to 24 weeksPercentage of participants with abnormalities in physical examination will be reported.
Percentage of Participants with Abnormalities in Laboratory ParametersUp to 24 weeksPercentage of participants with abnormalities in laboratory parameters (hematology, serum chemistry, and urinalysis) will be reported.

Secondary

MeasureTime frameDescription
Change in Number of T-lymphocyte Populations in BloodUp to 24 weeksChange in number of T-lymphocytes in blood will be reported. T-lymphocyte populations in blood will be assessed by flow cytometry.
Percentage of Participants Achieving DAS28-CRP Low Disease Activity (<=3.2) at Week 12Week 12Percentage of participants achieving DAS28-CRP low disease activity (defined as DAS28-CRP less than or equal to \[\<=\] 3.2) at week 12 will be reported.
Change in Magnitude and Duration of Cell Surface Expression Level of ReceptorsUp to 24 weeksChange in magnitude and duration of cell surface expression level of receptors will be assessed by flow cytometry will be reported.
Serum Concentration of JNJ-67484703 Over TimeUp to 24 weeksSerum concentration of JNJ-67484703 over time will be reported using a validated, specific, and sensitive method.
Percentage of Participants with Antibodies to JNJ-67484703 in Participants Receiving Active Study InterventionUp to 24 weeksPercentage of participants with antibodies to JNJ-67484703 in participants receiving active study intervention will be reported.
Change from Baseline in Disease Activity Index Score 28 using C-reactive Protein (DAS28-CRP) at Week 12Baseline, Week 12DAS28-CRP is a derived score combining tender joints (28 joints), swollen joints (28 joints), CRP, and patient's global assessment of disease activity (GH). The set of 28 joint count is based on evaluation of the shoulder, elbow, wrist, metacarpophalangeal (MCP)1, MCP2, MCP3, MCP4, MCP5, proximal interphalangeal (PIP)1, PIP2, PIP3, PIP4, PIP5 joints of both the upper right extremity and the upper left extremity as well as the knee joints of lower right and lower left extremities. Scores below 3.2 indicate best disease control and scores above 5.1 indicate worse disease control.
Percentage of Participants Achieving American College of Rheumatology (ACR)20, ACR50, and ACR70 ResponseUp to 24 weeksACR responses are presented as numerical measurement of improvement in multiple disease assessment criteria. For example, ACR20 response is defined as percent improvement of 20 or higher from baseline in both swollen joint count (66 joints) and tender joint count (68 joints), combined with a percent improvement of 20 or higher from baseline in 3 of the following 5 assessments: patient's assessment of pain by visual analog scale (VAS), patient's global assessment of disease activity by VAS, physician's global assessment of disease activity by VAS, patient's assessment of physical function measured by health assessment questionnaire-disability index (HAQ-DI, a 20-question instrument assessing 8 functional areas), and CRP. ACR50 and ACR70 are similarly defined except percent improvement threshold from baseline is 50 and 70, respectively.
Percentage of Participants Achieving DAS28-CRP Remission (less than [<] 2.6) at Week 12Week 12Percentage of participants achieving DAS28-CRP remission \< 2.6 at Week 12 will be reported.

Countries

Georgia, Hungary, Moldova, Spain, Ukraine, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026