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  • Title: [Anti-TNFalpha treatment in patients with rheumatoid arthritis and anti-Ro/SSA antibodies].
    Author: Cavazzana I, Franceschini F, Danieli E, Frassi M, Vianelli M, Gorla R, Airò P, Cattaneo R.
    Journal: Reumatismo; 2005 Dec; 57(4):267-72. PubMed ID: 16380754.
    Abstract:
    OBJECTIVE: To analyse clinical efficacy, onset of new autoantibodies or symptoms of autoimmune disease in patients affected by rheumatoid arthritis with anti-Ro/SSA treated with anti-TNFalpha agents. METHODS: Six anti-Ro/SSA positive subjects with RA were studied every six months until 24th month of treatment in order to detect ANA titer (IFI), anti-dsDNA (Farr), anti-cardiolipin and anti-beta2glycoprotein I (ELISA), anti-ENA (CIE). The titre of anti-Ro/SSA were analysed by ELISA. Four patients were diagnosed as overlap RA/SS. RESULTS: Six female patients (mean age 58 ys, SD 9.8 ys), with long-standing RA (mean 7 ys, range 5-22 ys) were treated with anti-TNFalpha agents for a mean of 31 months (SD: 20.4 m): 4 with Infliximab and 2 with Etanercept. All the patients showed a significant reduction of DAS until 24th month (p < 0.006) with stability of sicca symptoms. The titer of ANA and anti-Ro/SSA was stable, while 4 subjects developed anti-dsDNA at low titer within 6-12 months. One patient withdrawn the treatment, because of lupus-like features; another one, with HCV hepatitis, interrupted Etanercept because of elevation of liver enzymes. No anticardiolipin or antibeta2GPI antibodies were detected. One subject with RA-SS also presented a primary biliary cirrhosis: clinical and histological features of cholangitis remained stable during Etanercept treatment. CONCLUSIONS: Anti-TNFalpha treatment showed good efficacy and safety in anti-Ro/SSA positive patients with RA. Anti-ds-DNA antibodies at low titer appeared in most patients while the onset of lupus-like disease could be considered a rare event also in RA patients with a rich autoimmune repertoire.
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