• Turk J Med Sci · Aug 2020

    Colchicine Intolerance in FMF Patients and Primary Obstacles for Optimal Dosing.

    • Hasan Satiş, Berkan Armağan, Erdal Bodakçi, Nuh Ataş, Alper Sari, Nazife Şule Yaşar Bilge, Dilek Yapar, Reyhan Bilici Salman, Gözde Kübra Yardimci, Hakan Babaoğlu, Levent Kiliç, Berna Göker, Şeminur Haznedaroğlu, Timuçin Kaşifoğlu, Umut Kalyoncu, and Abdurrahman Tufan.
    • Department of Internal Medicine, Faculty of Medicine, Gazi University, Ankara, Turkey
    • Turk J Med Sci. 2020 Aug 26; 50 (5): 1337-1343.

    Background/AimColchicine is the mainstay of treatment in FMF. However, in daily practice it is not easy to maintain effective colchicine doses in a substantial number of patients due to its side effects. In this study, we aimed to investigate prevalence and risk factors for colchicine side effects that limit optimal drug dosing and cause permanent discontinuation.Materials And MethodsAll patients were recruited from “FMF in Central Anatolia” (FiCA) cohort, 915 adults with a minimum follow- up time of 6 months during which they had obeyed all treatment instructions. Demographic and anthropometric data, FMF disease characteristics, disease severity, complications, and treatment features were recorded on a web-based registry. Prevalence of colchicine intolerance and characteristics of intolerant patients were analyzed.ResultsEffective colchicine doses cannot be maintained in 172 (18.7%) subjects. Main side effects that limit optimal dosing were as follows: diarrhea in 99 (10.8%), elevation in transaminases in 54 (5.9%), leukopenia in 10 (%1.1), renal impairment in 14 (1.3%), myopathy in five (0.5%), and allergic skin reaction in two. Colchicine had to be permanently ceased in 18 (2%) patients because of serious toxicity. Male sex and obesity were found to be associated with liver toxicity, and having a normal body weight was associated with diarrhea. Chronic inflammation and proteinuria were more common in colchicine-intolerant patients, and they had reported more frequent attacks compared to those tolerating optimal doses.ConclusionColchicine intolerance is an important problem in daily clinical practice, mainly due to diarrhea and liver toxicity. Suboptimal colchicine dosing is associated with complications.This work is licensed under a Creative Commons Attribution 4.0 International License.

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