title: The antibody response to hepatitis B virus vaccination is negatively influenced by the hepatitis C virus viral load in patients with chronic hepatitis C: a case-control study.
abstract: The purpose of this work was to evaluate in a case-control study the immunogenicity of a recombinant hepatitis B virus (HBV) vaccine in patients with chronic hepatitis C. Seventy-seven patients with histologically proven chronic hepatitis C without cirrhosis were included in a prospective trial and matched for sex and age to 231 healthy adult subjects. Recombinant HBV vaccine was administered at a dose of 20 microg at months 0, 1 and 2. The definition of 'responder to vaccination' was anti-HBs titre > 10 mIU/ml after the three injections. Forty-nine (63.6%) chronic hepatitis C patients were responders to vaccination, compared with 217 (93.9%) controls (P < 0.0001). After the three injections, anti-HBs titres were 156 +/- 260 and 615 +/- 435 mIU/ml (P < 0.0001), respectively. Chronic hepatitis C patients who were non-responders to vaccination had significantly higher viral load than responders to vaccination. Moreover, a negative correlation was observed between viral load and anti-HBs concentration (r = -0.36, P = 0.003). No significant side effects were observed. There was no effect of vaccination on alanine aminotransferase (ALT) levels and hepatitis C virus (HCV) viral load during or after vaccination. In multivariate analysis, the main predictive factors of response to HBV vaccine were absence of anti-HCV antibodies (OR = 7.65, P < 0.0001), weight < 75 kg (OR = 1.99, P < 0.035), and age < 50 years (OR = 1.58, P < 0.082). Our results suggest that viral load seems to negatively influence the response to HBV vaccine.
authors: Department of Hepatogastroenterology, Grenoble, France.
authors: Vincent
authors: V
authors: Leroy
authors: Marc
authors: M
authors: Bourliere
authors: Magali
authors: M
authors: Durand
authors: Armand
authors: A
authors: Abergel
authors: Albert
authors: A
authors: Tran
authors: Maryline
authors: M
authors: Baud
authors: Danielle
authors: D
authors: Botta-Fridlund
authors: André
authors: A
authors: Gerolami
authors: Denis
authors: D
authors: Ouzan
authors: Philippe
authors: P
authors: Halfon
authors: Jean-Pierre
authors: JP
authors: Zarski
mesh_terms: D000328:Adult; D000410:Alanine Transaminase / Q000097:blood; D000917:Antibody Formation; D001706:Biopsy; D016022:Case-Control Studies; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005500:Follow-Up Studies; D016174:Hepacivirus / Q000302:isolation & purification*; D006509:Hepatitis B / Q000517:prevention & control*; D006510:Hepatitis B Antibodies / Q000276:immunology*; D017325:Hepatitis B Vaccines; D019698:Hepatitis C, Chronic / Q000276:immunology* / Q000821:virology; D006801:Humans; D008099:Liver / Q000473:pathology; D008297:Male; D011446:Prospective Studies; D014611:Vaccination; D014614:Vaccines, Synthetic; D019562:Viral Load
chemical_list: C075654:Engerix-B; D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D014614:Vaccines, Synthetic; D000410:Alanine Transaminase