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28.03.2020 | Observational Research | Ausgabe 8/2020

Rheumatology International 8/2020

Association between statin use and incidence of relapse in anti-neutrophil cytoplasmic antibody-associated vasculitis: a single-center retrospective cohort study

Zeitschrift:
Rheumatology International > Ausgabe 8/2020
Autoren:
Makoto Yamaguchi, Takayuki Katsuno, Shiho Iwagaitsu, Hironobu Nobata, Hiroshi Kinashi, Shogo Banno, Yasuhiko Ito
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Abstract

Several studies have shown the efficacy of statins for some autoimmune disorders caused by anti-inflammatory and immunomodulatory reactions. However, little information is available about the impact of statins on relapse in antineutrophil cytoplasmic antibody-associated vasculitis (AAV). We performed the first investigation examining whether statin use has an effect on suppressing the first relapse of AAV in Japanese patients with AAV. This single-center retrospective cohort study included 98 consecutive patients with newly diagnosed AAV from Aichi Medical University Hospital, Japan between March 2009 and December 2017. Time to first relapse from the first remission was compared between 36 patients in the statin group and 62 patients in the non-statin group using multivariate Cox proportional hazard models, which were adjusted for clinically relevant factors. During the follow-up period (median, 24 months; interquartile range, 9–50 months), 35 (97.2%) patients in the statin group achieved remission, whereas 56 (90.3%) patients achieved remission in the non-statin group (P = 0.201). After achieving the first remission, 9 (25.7%) patients in the statin group and 29 (51.8%) patients in the non-statin group had at least one relapse. Multivariate Cox proportional hazard models revealed that statin use was significantly associated with a lower incidence of relapse compared with non-statin use (multivariate-adjusted hazard ratio = 0.41, 95% confidence interval: 0.18–0.92; P = 0.031). Patients with statin use were associated with a lower incidence of relapse in AAV. Our results should be assessed in well-designed randomized controlled trials.

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