... years.ResultsContinuation rates of infliximab therapy Of the initial 511 patients enrolled in the study, 507 effectivelystarted infliximab therapy. All patients had long-standing, active, refractory RA, ... primarily maintained toevaluate effectiveness and safety issues [27,28]. Evaluation of the efficacy of long-term therapy shows that, after 4 years of infliximab therapy, the majority of patients ... 4-year study period, 61.6% of patients enrolled in the study werestill receiving infliximab therapy. Over the same time period,13.6% of patients discontinued infliximab therapy due to lackof...