Maintenance of efficacy and safety with subcutaneous golimumab in rheumatoid arthritis patients with low disease activity who previously received TNF inhibitors

Abstract

The study was conducted to evaluate continued maintenance of the efficacy and safety of therapy by switching to subcutaneous golimumab (GLM-SC) in rheumatoid arthritis patients with low disease activity or remission who previously received a tumor necrosis factor (TNF) inhibitor. Thirty patients who had been treated with etanercept or infliximab were switched to GLM-SC in maintaining disease activity at a low level. The patients were divided into two groups through discussion with each patient, considering general condition and convenience: the low disease activity (LDA) group and the LDAq8w group, which included patients with low disease activity or remission who switched to 50mg GLM therapy at 4- and 8-week intervals, respectively. The effects of the TNF inhibitors to GLM-SC switch were evaluated at 12, 24, and 52weeks after switching. The mean DAS28-ESR and DAS-CRP values in the LDA groups (16 patients) and LDAq8w groups (14 patients) were maintained from baseline throughout the 52-week treatment period. DAS28-ESR remission (93.8 and 92.3%) rates were also maintained through week 52 from the baseline remission rate (75.0 and 78.6%) in the LDA and LDAq8w groups, respectively. Thus, both GLM-SC treatment regimens were effective in maintaining the clinical response achieved with LDA secondary to TNF inhibitors. No serious adverse events occurred, and the continuation rate at 52weeks was 100% in both groups. Therapeutic efficacy is adequately maintained in most patients switching from TNF inhibitor to GLM-SC (50mg/4-8weeks). Patients receiving TNF inhibitor can seamlessly switch to GLM-SC without serious safety concerns.