title: Tocilizumab improves systemic rheumatoid vasculitis with necrotizing crescentic glomerulonephritis.
abstract: We report a Japanese woman with systemic rheumatoid vasculitis (SRV) complicated by necrotizing crescentic glomerulonephritis (NCGN). Rheumatoid arthritis first occurred at the age of 19 years, followed by interstitial pneumonia, hepatitis, rheumatoid nodules, mononeuritis multiplex, and hypocomplementemia in chronological order. At the age of 51 years, rapidly progressive renal failure occurred with nephrotic proteinuria, and NCGN with subepithelial deposits was revealed by renal biopsy. Severe destructive changes of multiple joints and scleritis were detected, but anti-neutrophil cytoplasmic antibody was negative on enzyme-linked immunosorbent assays and indirect immunofluorescence. SRV was diagnosed due to involvement of multiple extra-articular organs. An anti-interleukin (IL)-6 receptor antibody (tocilizumab) was started at dosage of 280 mg (8 mg/kg) monthly. After 18 months, her serum creatinine decreased from 1.7 to 1.3 mg/dL, and urinary protein excretion declined from 5.2 to 1.2 g daily. Tocilizumab may be a therapeutic option for SRV associated with NCGN.
authors.affiliation: Nephrology Center, Toranomon Hospital Kajigaya , 1-3-1 Kajigaya, Takatsu, 213-8587, Kawasaki, Kanagawa , Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Iijima
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Suwabe
authors.forename: Keiichi
authors.initials: K
authors.lastname: Sumida
authors.forename: Noriko
authors.initials: N
authors.lastname: Hayami
authors.forename: Rikako
authors.initials: R
authors.lastname: Hiramatsu
authors.forename: Eiko
authors.initials: E
authors.lastname: Hasegawa
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yamanouchi
authors.forename: Junichi
authors.initials: J
authors.lastname: Hoshino
authors.forename: Naoki
authors.initials: N
authors.lastname: Sawa
authors.forename: Kenmei
authors.initials: K
authors.lastname: Takaichi
authors.forename: Kenichi
authors.initials: K
authors.lastname: Oohashi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Fujii
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Ubara
mesh_terms: D061067:Antibodies, Monoclonal, Humanized / Q000627:therapeutic use*; D018501:Antirheumatic Agents / Q000627:therapeutic use*; D005260:Female; D005921:Glomerulonephritis / Q000150:complications / Q000188:drug therapy* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D056653:Rheumatoid Vasculitis / Q000188:drug therapy* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D061067:Antibodies, Monoclonal, Humanized; D018501:Antirheumatic Agents; C502936:tocilizumab
keywords: Humanized anti-interleukin-6 receptor antibody; Necrotizing crescentic glomerulonephritis; Systemic rheumatoid vasculitis; Tocilizumab