Completed

A Double-blind, Placebo-controlled Study Exploring the Safety, Tolerability and Efficacy of a 4 Week Course of INCB018424 in Subjects With Active Rheumatoid Arthritis

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What is being tested

INCB018424

+ Placebo

Drug
Who is being recruted

Arthritis+6

+ Arthritis, Rheumatoid

+ Autoimmune Diseases

From 18 to 70 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Placebo-ControlledPhase 2
Interventional
Study Start: October 2007
See protocol details

Summary

Principal SponsorIncyte Corporation
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: October 1, 2007

Actual date on which the first participant was enrolled.

The purpose of this study is to understand the safety and tolerability of INCB018424 in patients with rheumatoid arthritis

Official TitleA Double-blind, Placebo-controlled Study Exploring the Safety, Tolerability and Efficacy of a 4 Week Course of INCB018424 in Subjects With Active Rheumatoid Arthritis
NCT00550043
Principal SponsorIncyte Corporation
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

50 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 70 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

ArthritisArthritis, RheumatoidAutoimmune DiseasesConnective Tissue DiseasesImmune System DiseasesJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesSkin and Connective Tissue Diseases

Criteria

Inclusion Criteria: 1. Established diagnosis of rheumatoid arthritis 2. Patients receiving methotrexate must be treated with for at least 6 months and receiving a stable weekly dose between 10 and 25 mg for at least 8 consecutive weeks prior to study entry. Exclusion Criteria: 1. Patients who have taken the following drugs within the timeframe below: * Leflunomide, infliximab, etanercept, adalimumab, abatacept, or other biological therapies (except rituximab) - Within 12 weeks prior to the first dose of study medication; * Rituximab - Within 12 months prior to the first dose of study medication; * Disease-modifying anti-rheumatic drugs (DMARDs) or other anti-rheumatic therapies not specified above including but not limited to: gold, penicillamine, dapsone, azathioprine, 6-mercaptopurine, chlorambucil, cyclophosphamide, cyclosporin, mycophenolate mofetil - Within 12 weeks prior to the first dose of study medication; 2. Treatment with any investigational medication within 12 weeks prior to the first dose of study medication.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

5 intervention groups are designated in this study

20% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental
INCB018424 15 mg twice daily (BID) or matching placebo

Group II

Experimental
INCB018424 5 mg BID or matching placebo

Group III

Experimental
INCB018424 25 mg BID or matching placebo

Group IV

Experimental
INCB018424 50 mg once daily (QD) or matching placebo

Group 5

Placebo
Matching placebo, oral

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has no location dataSave this study to your profile to know when the location data is available.
CompletedNo study centers