Effectiveness and Safety of Golimumab for Patients ≥75 Years Old with Rheumatoid Arthritis

OBJECTIVE: Treatment of elderly patients with rheumatoid arthritis (RA) has been controversial because they often have serious comorbidities and cannot use methotrexate (MTX). In Japan, golimumab (GLM) 100 mg without MTX is approved. We investigated the effectiveness and safety of GLM in elderly patients with RA. METHODS: The GLM survival rate was evaluated using the Kaplan-Meier method. Disease activities, laboratory findings, and treatments were evaluated. PATIENTS: We enrolled 168 patients with RA in our hospital. Using age ≥75 years old to identify elderly patients, younger (n=111) and elderly (n=57) groups were established. Elderly patients were divided into 2 groups according to the MTX treatment status (with, n=27; without, n=25). RESULTS: The GLM survival rates were 80.8% and 82.3% in elderly and younger patients, respectively (p=0.762). At 52 weeks, the Disease Activity Score 28-erythrocyte sedimentation rate (DAS28-ESR) was improved in elderly patients (4.26 vs. 3.31, p＜0.001); the Health Assessment Questionnaire Disability Index (HAQ-DI) was unchanged (1.12 vs. 0.88, p=0.694). When elderly patients were compared according to the MTX treatment status, the DAS28-ESR had improved in both groups (with MTX: 3.82 vs. 2.68, p＜0.001; without MTX: 4.76 vs. 4.25, p=0.026); however, the HAQ-DI had not. The GLM survival rates at 52 weeks were 85% and 76% in patients with and without MTX, respectively. CONCLUSION: In elderly patients with RA, GLM was effective, regardless of MTX treatment status, but it did not affect the HAQ-DI. GLM survival rates were comparable between elderly and younger patients. GLM may be a suitable option for elderly patients with RA who cannot use MTX.