{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,1]],"date-time":"2026-03-01T06:51:43Z","timestamp":1772347903053,"version":"3.50.1"},"reference-count":13,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2023,5,20]],"date-time":"2023-05-20T00:00:00Z","timestamp":1684540800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,12,29]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n               <jats:p>Rheumatoid vasculitis (RV) is a severe extra-articular systemic manifestation of rheumatoid arthritis (RA). Its prevalence has been decreasing for decades because of improved early diagnosis of RA and advances in RA treatment, but it remains a life-threatening disease. The standard treatment for RV has been a glucocorticoid and disease-modifying antirheumatic drugs. Biological agents, including antitumour necrosis factor inhibitors, are also recommended for refractory cases. However, there are no reports of Janus kinase (JAK) inhibitor use in RV. We experienced a case of an 85-year-old woman with a 57-year history of RA who had been treated with tocilizumab for 9\u2009years after receiving three different biological agents over 2\u2009years. Her RA seemed to be in remission in her joints, and her serum C-reactive protein had decreased to 0.0\u2009mg\/dL, but she developed multiple cutaneous leg ulcers associated with RV. Because of her advanced age, we changed her RA treatment from tocilizumab to the JAK inhibitor peficitinib in monotherapy, after which the ulcers improved within 6\u2009months. This is the first report to indicate that peficitinib is a potential treatment option for RV that can be used in monotherapy without glucocorticoids or other immunosuppressants.<\/jats:p>","DOI":"10.1093\/mrcr\/rxad025","type":"journal-article","created":{"date-parts":[[2023,5,21]],"date-time":"2023-05-21T00:57:15Z","timestamp":1684630635000},"page":"5-10","source":"Crossref","is-referenced-by-count":6,"title":["Successful peficitinib monotherapy for the new-onset skin manifestations of rheumatoid vasculitis after long-term treatment with tocilizumab for rheumatoid arthritis"],"prefix":"10.1093","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1494-3291","authenticated-orcid":false,"given":"Yuki","family":"Oba","sequence":"first","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoki","family":"Sawa","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daisuke","family":"Ikuma","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroki","family":"Mizuno","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Noriko","family":"Inoue","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akinari","family":"Sekine","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eiko","family":"Hasegawa","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masayuki","family":"Yamanouchi","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatsuya","family":"Suwabe","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuko","family":"Yamaguchi","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Toranomon Hospital , Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yutaka","family":"Takasawa","sequence":"additional","affiliation":[{"name":"Department of Pathology, Toranomon Hospital , Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshifumi","family":"Ubara","sequence":"additional","affiliation":[{"name":"Nephrology Center and Department of Rheumatology, Toranomon Hospital Kajigaya , Kawasaki, Kanagawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2023,5,20]]},"reference":[{"key":"2023122911392952800_R1","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1136\/ard.55.3.190","article-title":"Factors associated with the development of vasculitis in rheumatoid arthritis: results 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