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Merck
  • Lamivudine or adefovir dipivoxil alone or combined with immunoglobulin for preventing hepatitis B recurrence after liver transplantation.

Lamivudine or adefovir dipivoxil alone or combined with immunoglobulin for preventing hepatitis B recurrence after liver transplantation.

The Cochrane database of systematic reviews (2010-07-09)
Lior H Katz, Ran Tur-Kaspa, Daniel G Guy, Mical Paul
ABSTRACT

Recurrence of hepatitis B virus (HBV) infection in the liver graft is a grave complication following liver transplantation for HBV cirrhosis. Hepatitis B immunoglobulin (HBIg) seems effective in increasing survival after liver transplantation. HBIg and anti-viral drugs are given alone or in combination for its prevention. To assess the benefits and harms of different regimens for preventing HBV reactivation following liver transplantation. We searched The Cochrane Hepato-Biliary Group Controlled Trials Register, The Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, and Science Citation Index Expanded until February 2010. We attempted to identify further trials by reviewing the reference lists and contacting the principal authors of identified trials. Randomised clinical trials addressing benefits and harms of lamivudine or adefovir dipivoxil alone or in combination with hepatitis B immunoglobulins (HBIg) for preventing recurrent HBV infection in patients who are liver transplanted due to HBV infection with or without hepatocellular carcinoma. Two authors independently assessed the trials for risk of bias and extracted data. We contacted study authors whenever information was lacking. We collected information on adverse events. The primary outcomes were all-cause mortality and reappearance of hepatitis B surface antigen in serum after liver transplantation. Relative risks were calculated from individual trials. Four trials, recruiting 136 participants, were included. Two trials compared lamivudine alone versus HBIg alone. Randomisation was performed one week after transplantation in one of the trials and after six months after transplantation in another; from transplantation until randomisation, HBIg alone was given to all patients in the two trials. A third trial compared combination treatment with lamivudine and HBIg versus lamivudine alone after one month of combination treatment, and a fourth trial compared the combination of lamivudine and HBIg versus a combination of lamivudine and adefovir dipivoxil after at least 12-month of lamivudine and HBIg combination treatment. Statistically significant differences were not detected in any of the comparisons and outcomes. All trials were open-labelled, and none of the trials were adequately powered to show a difference in HBV recurrence. No meta-analyses were performed since the identified trials assessed different comparisons. This review could not derive clear evidence from randomised clinical trials for the treatment of patients with chronic HBV following liver transplantation for preventing recurrence of HBV infection. Large randomised clinical trials comparing long-term combination treatment to each of the monotherapy alone, including the newer antiviral drugs, are needed.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Lamivudine, ≥98% (HPLC), powder
USP
Lamivudine, United States Pharmacopeia (USP) Reference Standard
Lamivudine, European Pharmacopoeia (EP) Reference Standard
Lamivudine for system suitability 1, European Pharmacopoeia (EP) Reference Standard
Supelco
Lamivudine, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Adefovir dipivoxil
Lamivudine for system suitability 2, European Pharmacopoeia (EP) Reference Standard