The needed daily dose of colchicine in patients with Familial Mediterranean Fever may be higher in women: a study on behalf of the JIR cohort.

Author: Di Cola et al.

Ref : Di Cola et al, Arthritis Res Ther. 2025 Mar 19;27(1):59.

Link to article: https://pubmed.ncbi.nlm.nih.gov/40108720/

Summary

To date, no data exist on the relationship between daily colchicine dosage and body weight in patients with Familial Mediterranean Fever (FMF). This question is frequently raised by patients or their parents during consultations. The objective of our study was to describe the daily colchicine dosage in a cohort of patients with FMF.

We conducted a retrospective analysis from 2016 to 2023 on adult FMF patients who were prospectively followed at the French National Reference Center for Auto-inflammatory Diseases at Tenon Hospital.

Among the 272 patients studied, 149 were women (57.8%), with a mean age of 43 years. The average weight was 67.8 kg, and the mean BMI was 24.2 kg/m². Colchicine was taken by 96% of the patients. A subgroup of 30 patients was receiving 2.5 mg/day of colchicine: the majority were women (n=23; 76.7%; p=0.018), with a significantly lower average weight (p=0.019); in fact, 26 out of 30 (87%) weighed less than 50 kg. Female sex was associated with a higher daily dose of colchicine (p=0.0208), whereas no significant correlation was found with weight (p=0.4073).

No signs of toxicity were observed in patients receiving 2.5 mg/day of colchicine, including those weighing under 50 kg, the majority of whom were women.

One hypothesis is that this increased need for colchicine in some women may be related to hormonal factors, with a possible hyperactivation of pyrin.

This is the first study to examine the relationship between weight and colchicine dosage in adults with FMF, highlighting a potential link with female sex.

This work provides reassurance to patients receiving 2.5 mg/day of colchicine: there is no toxicity at this dose in the absence of renal impairment.

La dose quotidienne nécessaire de colchicine chez les patients atteints de Fièvre Méditerr.

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Liver disease complicating Familial Mediterranean Fever: a study on 66 patients out of 533 adult from the JIR cohort

First author: M. DELPLANQUE et al,

Journal: Liver International

Link to the article: https://doi.org/10.1111/liv.16232

Abstract:

Background: Familial Mediterranean fever (FMF) is the most common monogenic autoinflammatory disease, associated with MEFV mutations. FMF patients can experience liver involvement, potentially leading to cirrhosis.

Objectives: This study aimed to evaluate liver involvement in FMF patients at a French tertiary center for adult FMF.

Methods: We conducted an observational study with FMF patients displaying 2 pathogenic MEFV mutations at the Adult National Reference Centre for Autoinflammatory Diseases and Inflammatory Amyloidosis (CEREMAIA) in Paris and included in the JIR cohort. MEFV heterozygous patients and those with other liver disease causes were excluded.

Results: Among 533 FMF patients 12.4% had chronic liver abnormalities, with 30% who developed cirrhosis 54 years [36-57] in median after disease onset. Forty-seven percent were colchicine resistant, and 41% received interleukin-1 inhibitors. Cirrhotic patients experienced delayed hepatopathy diagnosis, prolonged FMF diagnosis delay, and late-onset treatment initiation compared to those with only liver function test abnormalities. Colchicine resistance and interleukin-1 inhibitor use were more common in cirrhotic patients. Body mass index and AA amyloidosis rates did not differ significantly between groups. Twenty-one patients undergone liver biopsies including 14 cirrhotic patients revealing steatohepatitis in 12 cases and probable steatohepatitis in 4. Other lesions, like iron overload and sinusoidal dilatation, were sporadically observed.

Conclusion: FMF patients are at risk of chronic liver disease. Regular liver function monitoring is crucial, particularly in case of persistent inflammation, due to the risk of progression to cirrhosis and its associated morbidity and mortality.

Lay Summary

More than, 10% of FMF patients develop chronic liver abnomalities over time and 4% cirrhosis. High-risk includes those with 2 MEFV mutations and colchicine resistance and chronic liver disease often begins after age 55 in FMF patients. In FMF patient with impaired liver function optimizing treatment targeting chronic inflammation is a key point in their care.

Liver biopsy of FMF patient

a. Liver biopsy with cirrhosis (sirius red staining)

b. Same liver biopsy with steatohepatitis associating steatosis, hepatocellular ballooning and inflammation (H&E staining)

Biopsie du foie d'un patient atteint de FMF

Complications of cirrhosis in FMF patients

(A) Esophageal varices visualized by upper gastrointestinal endoscopy

(B) Hepatomegaly and ascite of a cirrhotic FMF patient detected in an abdominal CT scan

(C) Hepatomegaly and ascite of a cirrhotic FMF patient detected in an abdominal CT scan

Complications de la cirrhose chez les patients atteints de FMF

Table 1. Demographic and clinical characteristics of the enrolled cohort.

Data are presented as median [Q1-Q3]. N= number of patients

††CRP C protein reactive, BMI Body Mass Index, FMF Familial Mediterranean fever, W women, M men

Table 4. Complication and Child Pugh Score of FMF patients with cirrhosis (n=20)

Transjugular intrahepatic portosystemic shunts (TIPS)

(% among cirrhotic patients)

Liver Disease Complicating Familial Mediterranean Fever.

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Iron Deficiency in Familial Mediterranean Fever: A Studyon 211 Adult Patients From the JIR Cohort

First author: Ilenia Di Cola et al

Review: American Journal of Hematology

Link to article: https://doi.org/10.1002/ajh.27549

Familial Mediterranean Fever (FMF) is the most common monogenic autoinflammatory disease worldwide, associated with mutations in the MEFV gene. Patients experience recurrent and self-limited episodes of fever, abdominal pain, and chest pain. There is no specific association between anemia and FMF, except that patients with chronic inflammation may have inflammatory microcytic anemia.

However, chronic anemia can lead to fatigue, and fatigue is known to be a trigger for FMF. Therefore, patients with fatigue due to anemia may experience more frequent flare-ups of the disease and a reduced quality of life. Iron deficiency can cause fatigue even in the absence of anemia. Fatigue is also commonly reported in FMF. Therefore, it may be beneficial to check for iron deficiency without anemia as one of the causes of fatigue in FMF, especially since fatigue can be considered a trigger for their flare-ups.

Our study explores the prevalence of iron deficiency in 211 adult patients with Familial Mediterranean Fever (FMF). The main goal was to determine the association between iron deficiency (defined by ferritin < 27 ng/mL) and various clinical, biological, and therapeutic parameters.

In total, 31.8% of FMF patients had ferritin < 27 ng/mL, mostly young women. Iron deficiency, even without anemia, potentially contributes to fatigue, a frequent trigger of inflammatory flare-ups. Possible causes include excessive menstrual losses not compensated by a diet rich in iron, low consumption of animal proteins, or digestive bleeding exacerbated by the use of NSAIDs.

Patients with low ferritin had lower hemoglobin (Hb) levels and BMI, and required higher doses of colchicine (2 mg/day on average). The impact of colchicine on intestinal iron absorption remains to be studied.

This work highlights the importance of monitoring ferritin levels in Familial Mediterranean Fever (FMF) due to the simplicity and global accessibility of this test, including in emerging countries. In the case of significant iron deficiency, supplementation is recommended to alleviate symptoms such as fatigue and anemia, which can trigger FMF flare-ups and maintain a vicious cycle of fatigue in patients.

Iron deficiency in FMF.pdf

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