An Hepatitis B Vaccine Model for HIV Vaccine Trials in Drug Users

Summary

The goal of the proposed study is to use the HBV vaccine as a model for a future HIV vaccine trial, examining the efficacy of community-based outreach intervention as well as an accelerated vaccine schedule as a method for increasing acceptance/adherence with HBV vaccination protocols among not-in-treatment drug users. This study will also examine the effect of HBV vaccination coupled with community-based outreach intervention on reducing the incidence of HIV, HBV and HCV infections and the frequency of needle use and sexual risk behaviors related to these viral transmissions. A secondary purpose will be to assess the antibody response after HBV vaccination as a measurement of immunological response in drug users.

Timeline

Start

2004-01

Primary completion

2007-06

Completion

2009-12

Publications

• Results Hwang LY, Grimes CZ, Tran TQ, Clark A, Xia R, Lai D, Troisi C, Williams M. Accelerated hepatitis B vaccination schedule among drug users: a randomized controlled trial. J Infect Dis. 2010 Nov 15;202(10):1500-9. doi: 10.1086/656776. Epub 2010 Oct 11.
• Results Tran TQ, Grimes CZ, Lai D, Troisi CL, Hwang LY. Effect of age and frequency of injections on immune response to hepatitis B vaccination in drug users. Vaccine. 2012 Jan 5;30(2):342-9. doi: 10.1016/j.vaccine.2011.10.084. Epub 2011 Nov 8.
• Results Shah DP, Grimes CZ, Brown E, Hwang LY. Demographics, socio-behavioral factors, and drug use patterns: what matters in spontaneous HCV clearance? J Med Virol. 2012 Feb;84(2):235-41. doi: 10.1002/jmv.22271.
• Results Grimes CZ, Hwang LY, Wei P, Shah DP, Volcik KA, Brown EL. Differentially regulated gene expression associated with hepatitis C virus clearance. J Gen Virol. 2013 Mar;94(Pt 3):534-542. doi: 10.1099/vir.0.047738-0. Epub 2012 Nov 14.
• Results Kamath GR, Shah DP, Hwang LY. Immune response to hepatitis B vaccination in drug using populations: a systematic review and meta-regression analysis. Vaccine. 2014 Apr 25;32(20):2265-74. doi: 10.1016/j.vaccine.2014.02.072. Epub 2014 Mar 12.
• Results Lu-Yu. Hwang*, Carolyn. Grimes "Human Immunodeficiency Virus, hepatitis B and C Virus infections among injecting and non-injecting drug users from inner city neighborhoods " Insight and Control of Infectious Disease in Global Scenario, Priti Kumar Roy (Ed), ISBN 978-953-51-0319-6, 2012, p45-60 InTech, Available from http://www.intechopen.com/articles/show/title/immunodeficiency-virus-hepatitis-b-and-hepatitis-c-virus-infections-among-injecting-and-non-injectin

Drugs

Indications