ORIGINAL PAPER
Efficacy of the first and subsequent courses of anti-TNF therapy in patients with ankylosing
spondylitis – results from the Czech National Register ATTRA
Online publication date: 2012-09-07
Reumatologia 2012;50(4):294-306
KEYWORDS
ABSTRACT
Background: Efficacy of switching of anti-tumour necrosis factor (anti-TNF) in ankylosing spondylitis (AS) in real clinical practice is not fully known.
Objective: The aim of the study was to compare efficacy of the first and the second course of anti-TNF in patients with AS using data from ATTRA.
Material and methods: Patients fulfilled criteria of CRS for indication of anti-TNF. Outcomes used: BASDAI, C-reactive protein (CRP) (mg/l), enthesitis index and survival on drug during 1 year.
Results: In total 1175 patients were included, of whom 1012 had received the first course of anti-TNF only (“non-switchers”), and 163 the second anti-TNF course (“switchers”). Survival during 1–4 years in “non-switchers” was 91%, 86%, 81% and 78% and in switchers 81%, 69%, 60%, 48%. Decrease of CRP was greater in the non-switcher group than in the switcher group in all measured intervals. However, there was not a different proportion of patients who reached BASDAI < 4 in both groups.
Conclusions: This study shows that the second anti-TNF therapy in AS is only a little bit less effective than the 1st anti-TNF and that switching of therapy is reasonable. 80% and 70% of the patients remain on the second anti-TNF after 1 and 2 years, approximately half of the patients reach major clinical response and the same proportion of patients reach low activity corresponding to a partial remission.
Objective: The aim of the study was to compare efficacy of the first and the second course of anti-TNF in patients with AS using data from ATTRA.
Material and methods: Patients fulfilled criteria of CRS for indication of anti-TNF. Outcomes used: BASDAI, C-reactive protein (CRP) (mg/l), enthesitis index and survival on drug during 1 year.
Results: In total 1175 patients were included, of whom 1012 had received the first course of anti-TNF only (“non-switchers”), and 163 the second anti-TNF course (“switchers”). Survival during 1–4 years in “non-switchers” was 91%, 86%, 81% and 78% and in switchers 81%, 69%, 60%, 48%. Decrease of CRP was greater in the non-switcher group than in the switcher group in all measured intervals. However, there was not a different proportion of patients who reached BASDAI < 4 in both groups.
Conclusions: This study shows that the second anti-TNF therapy in AS is only a little bit less effective than the 1st anti-TNF and that switching of therapy is reasonable. 80% and 70% of the patients remain on the second anti-TNF after 1 and 2 years, approximately half of the patients reach major clinical response and the same proportion of patients reach low activity corresponding to a partial remission.
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Copyright: © Narodowy Instytut Geriatrii, Reumatologii i Rehabilitacji w Warszawie. This is an Open Access journal, all articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (https://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
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