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KMID : 0388220110180030161
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Journal of the Korean Rheumatism Association
2011 Volume.18 No. 3 p.161 ~ p.167
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Treatment Persistence with TNF Blocker in Korean Rheumatoid Arthritis Patients
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Cho Soo-Kyung
Sung Yoon-Kyoung
Choi Chan-Bum
Uhm Wan-Sik
Kim Tae-Hwan
Jun Jae-Bum
Yoo Dae-Hyun
Bae Sang-Chul
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Abstract
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Objective : To estimate drug persistency and the safety of TNF blocker in Korean patients with rheumatoid arthritis.
Methods: Data were extracted from medical records of rheumatoid arthritis patients who had treated with TNF blocker or are currently using TNF blocker at Hanyang University Hospital for Rheumatic Diseases from December 2000 to November 2009 (REtrospective study for Safety and Efficacy of Anti-RA treatment with biologiCs, RESEARCh). Comprehensive chart reviews were undertaken on all patients and data on drug usages and response of TNF blocker was collected at initiation, 3 months and the time of data collection. Persistency with treatment was examined using life-table analysis and multivariate Cox proportional hazard models were developed to examine potential predictors of discontinuation of TNF blocker.
Result: A total of 268 patients were enrolled in this retrospective study. Among them 180 patients were included in the analysis of drug persistency. The 1-year and 5-year drug persistency of TNF blocker was 74% and 46%, respectively. Concomitant use of methotrexate (hazard ratio 0.46, 95% CI 0.27-0.80) was associated with higher persistence. Comparing to etanercept, adalimumab is an independent risk factor for discontinuation (hazard ratio 2.63, 95% CI 1.43-4.84).
Conclusion:Five-year drug persistency of TNF blocker was 46% and concomitant use of methotrexate is associated with higher persistence.
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KEYWORD
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Rheumatoid arthritis, TNF-blocker, Drug persistency
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