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  • Title: Assessment of effectiveness of anakinra and canakinumab in patients with colchicine-resistant/unresponsive familial Mediterranean fever.
    Author: Şahin A, Derin ME, Albayrak F, Karakaş B, Karagöz Y.
    Journal: Adv Rheumatol; 2020 Jan 30; 60(1):12. PubMed ID: 32000860.
    Abstract:
    UNLABELLED: İNTRODUCTION: Familial Mediterranean fever (FMF) is a hereditary auto-inflammatory disease characterized by recurrent fever and serosal inflammation. Anti-interleukin-1 (Anti-IL-1) treatments are recommended in colchicine resistant and/or intolerant FMF patients. This study aims to evaluate the efficacy of anakinra and canakinumab in FMF patients that are resistant/intolareted to colchicine or complicated with amyloidosis. METHODS: Between January 2014 and March 2019, 65 patients following-up at Sivas Cumhuriyet University (Medical Faculty Rheumatology-Internal Medicine Department) who were diagnosed with FMF according to the criteria of Tel-Hashomer were included in the study. The laboratory values and clinical features of patients and disease activities were recorded at least every 3 months, and these data were analyzed. RESULTS: Forty-one (63.1%) patients used anakinra (100 mg/day) and 24 (36.9%) patients used canakinumab (150 mg/8 week). The median duration of anti-IL-1 agents use was 7 months (range, 3-30). Fifteen (23.1%) cases were complicated with amyloidosis. Seven (10.8%) patients had renal transplantation. Overall, the FMF 50 score response was 96.9%. In the group that had a glomerular filtration rate (GFR) ≥ 60 ml/min/m2, the median proteinuria decreased from 2390 mg/day (range, 1400-7200) to 890 mg/day (range, 120-2750) (p = 0.008). No serious infections were detected, except in one patient. CONCLUSIONS: Anti-IL-1 agents are effective and safe in the treatment of FMF patients. These agents are particularly effective at reducing proteinuria in patients with GFR ≥ 60 ml/min/m2, but less effective in cases with FMF associated with arthritis and sacroiliitis. Large and long follow-up studies are now needed to establish the long-term effects of these treatments.
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