Arthritis Clinical Trials

This is a randomized (participants assigned to treatment by chance), double-blind (participants and study personnel will not know what treatment is being given), placebo-controlled (a placebo appears identical to a study drug, but contains no active ingredients), parallel-group (treatments will be given to groups of participants at the same time) study. Participants will be randomly assigned in a 3:1 ratio to receive either JNJ-38518168 for 52 weeks or receive matching placebo for 12 weeks, followed by JNJ-38518168 for 40 weeks. The total duration of participation will be approximately 60 weeks for all participants, including a screening visit and follow-up visits. Safety and tolerability of JNJ-38518168 will be evaluated by monitoring adverse events reported by participants throughout the study . In addition, results from clinical laboratory tests, electrocardiograms, vital signs measurements, and physical examinations performed during the study will be monitored.