title: Short-term course of chronic hepatitis B and C under treatment with etanercept associated with different disease modifying antirheumatic drugs without antiviral prophylaxis.
abstract: OBJECTIVE
  To evaluate the short-term course of chronic hepatitis B and C under treatment with etanercept (ETN) associated with different disease modifying antirheumatic drugs (DMARD).
  
  
  METHODS
  Patients with rheumatoid arthritis (RA) and ankylosing spondylitis (AS) receiving anti-tumor necrosis factor-a (TNF-a) were retrospectively reviewed for the presence of hepatitis B or C serology, liver function tests, liver biopsy findings, and the relevant outcomes in terms of viral load.
  
  
  RESULTS
  We identified 5 relevant cases receiving ETN, 3 RA patients with chronic hepatitis C, another RA patient with dual infection by B and C, and one AS patient with hepatitis B. Four patients met the American College of Rheumatology criteria for RA. The patient with AS fulfilled the modified New York diagnostic criteria for AS. In Case 1, ETN was started after having discontinued a-interferon and ribavirin due to viral clearance of hepatitis C. These patients had not received prophylactic antiviral therapy while being treated with ETN. Viral replication increased in 2 patients to an insignificant level, remained negative in 2, and decreased in the remaining one. No significant rise in patients' liver transaminases could be determined during followup.
  
  
  CONCLUSIONS
  We observed reactivation of hepatitis C virus infection in 2 of 4 patients while they were receiving ETN with DMARD without antiviral prophylaxis.
authors.affiliation: Division of Rheumatology, Department of Internal Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.
authors.forename: Döndü U
authors.initials: DU
authors.lastname: Cansu
authors.forename: Timuçin
authors.initials: T
authors.lastname: Kalifoglu
authors.forename: Cengiz
authors.initials: C
authors.lastname: Korkmaz
mesh_terms: D000328:Adult; D018501:Antirheumatic Agents / Q000627:therapeutic use; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000188:drug therapy*; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D000068800:Etanercept; D005260:Female; D016174:Hepacivirus / Q000187:drug effects*; D006515:Hepatitis B virus / Q000187:drug effects*; D019694:Hepatitis B, Chronic / Q000150:complications; D019698:Hepatitis C, Chronic / Q000150:complications; D006801:Humans; D007074:Immunoglobulin G / Q000008:administration & dosage*; D008875:Middle Aged; D018124:Receptors, Tumor Necrosis Factor / Q000008:administration & dosage*; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000188:drug therapy; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors*; D019562:Viral Load; D017735:Virus Latency / Q000187:drug effects
chemical_list: D018501:Antirheumatic Agents; D007074:Immunoglobulin G; D018124:Receptors, Tumor Necrosis Factor; D014409:Tumor Necrosis Factor-alpha; D000068800:Etanercept