Immunogenicity of hepatitis B vaccine in oncology patients receiving chemotherapy

We evaluated the immunogenicity and safety of three 40 micrograms doses of hepatitis B vaccine in oncology patients receiving chemotherapy. Of 76 patients screened for entry into the study, 13 (17%) already had been exposed to hepatitis B and were ineligible; 26 chose to join the study. The cumulative life-table response rate during the 12-month observation period was 70.8%; adequate immune response was linked to survival, 73% in survivors completing the study and 9% in nonsurvivors. Adverse effects were minor. We conclude that hepatitis B vaccine is safe and usually effective in inducing immunity in oncology patients younger than 60 years of age who are receiving chemotherapy.