title: Intentional conversion from tacrolimus to cyclosporine for HCV-positive patients on preemptive interferon therapy after living donor liver transplantation.
abstract: BACKGROUND
  Recently we reported that signal transmission of interferon is more suppressed by tacrolimus (Tac) than cycrosporine (CyA). Therefore, although CyA might be beneficial immunosuppressive drug after liver transplantation (LT) on interferon therapy against hepatitis C virus, it is hesitated because of the risk for provocation of rejection. Herein initial outcome of our strategy, i.e. intentional conversion from Tac to CyA during preemptive interferon therapy after living donor LT (LDLT) was reported.
  
  
  METHODS
  Of 62 patients who had undergone LDLT in Nagasaki University Hospital between 1997 and November 2006, 16 patients showed indications for hepatitis C-related liver cirrhosis. The median follow-up period was 15 months. Tac was used for all patients as induction therapy combined with steroids tapering.
  
  
  RESULTS
  In 11 out of 16 cases (68.8%), preemptive Pegylated (Peg)-IFN-alpha 2b+Ribavirin therapy was initiated. When Peg-IFN-alpha 2b+Ribavirin therapy was commenced, Tac-to- CyA conversion was done. The median period of conversion from Tac to CyA was 1.5 month after LDLT. After the conversion, ACR occurred in one case. Out of 11 patients, 3 patients (21.4%) showed early viral response (VR) at 3 months, 2 showed end-treatment response at 48 weeks (14.3%) and 3 showed sustained VR (21.4%).
  
  
  CONCLUSIONS
  Intentional conversion from Tac to CyA can be safely performed without increasing the risk of ACR.
authors.affiliation: Departments of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan. sueguchi@nagasaki-u.ac.jp
authors.forename: Susumu
authors.initials: S
authors.lastname: Eguchi
authors.forename: Mitsuhisa
authors.initials: M
authors.lastname: Takatsuki
authors.forename: Akihiko
authors.initials: A
authors.lastname: Soyama
authors.forename: Masaaki
authors.initials: M
authors.lastname: Hidaka
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Tokai
authors.forename: Koji
authors.initials: K
authors.lastname: Hamasaki
authors.forename: Kensuke
authors.initials: K
authors.lastname: Miyazaki
authors.forename: Yoshitsugu
authors.initials: Y
authors.lastname: Tajima
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Ichikawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Kanematsu
mesh_terms: D000998:Antiviral Agents / Q000008:administration & dosage*; D015331:Cohort Studies; D016572:Cyclosporine / Q000008:administration & dosage*; D005260:Female; D006526:Hepatitis C / Q000628:therapy*; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage*; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000008:administration & dosage*; D016031:Liver Transplantation; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D011092:Polyethylene Glycols / Q000008:administration & dosage*; D011994:Recombinant Proteins; D012189:Retrospective Studies; D012254:Ribavirin / Q000008:administration & dosage; D016559:Tacrolimus / Q000008:administration & dosage*
chemical_list: D000998:Antiviral Agents; D007166:Immunosuppressive Agents; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D011994:Recombinant Proteins; D011092:Polyethylene Glycols; D012254:Ribavirin; D016572:Cyclosporine; C100416:peginterferon alfa-2a; D016559:Tacrolimus