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We read with interest the findings of the paper by Neovius et al1 recently published on Annals of the Rheumatic Diseases who retrospectively studied the drug survival on tumour necrosis factor (TNF)-α blockers in patients with rheumatoid arthritis (RA) in real-life settings. The primary endpoint of their analysis was to assess the drug discontinuation rates in RA patients starting a first ever TNF-α inhibitor and to compare between-group survival rates for the historical anti-TNF-α drugs, namely adalimumab, etanercept and infliximab, during 5 years of follow-up. Additionally, they also evaluated the discontinuation rates of each anti-TNF-α drug across calendar period. They selected patients starting the treatment since 2003, …
Contributors FI, GF, EG and GL gave a personal and active contribution to elaborate this comment. All the authors read and approved the final manuscript before submission.
Competing interests None.
Patient consent Obtained.
Ethics approval Ethical Committee of Bari, Italy.
Provenance and peer review Not commissioned; internally peer reviewed.
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