Department of Health Sciences, College of Health and Rehabilitation Sciences: Sargent College, Boston University, Boston, MA; Department of Epidemiology, School of Public Health, Boston University, Boston, MA; VA HIV/Hepatitis Quality Enhancement Research Initiative, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA.
BACKGROUND AND AIM:
The Veterans Health Administration (VHA) is the largest single provider of care for hepatitis C virus (HCV) infection in the US. We analyzed the cost-effectiveness of treatment with the HCV protease inhibitors boceprevir and telaprevir in a defined managed care population of 102,851 patients with untreated chronic genotype 1 infection.
We used a decision-analytic Markov model to examine 4 strategies: standard dual-therapy with pegylated interferon-alfa and ribavirin (PR), the combination of boceprevir and PR triple therapy, the combination of telaprevir and PR, or no antiviral treatment; sensitivity analysis was performed. Sources of data included published rates of disease progression, the census bureau, and VHA pharmacy and hospitalization cost databases.
The estimated costs for treating each patient were $8000 for PR, $31,300 for boceprevier and PR, and $41,700 for telaprevir and PR. Assuming VHA treatment rates of 22% and optimal rates of sustained viral response, PR, boceprevir and PR, and telaprevir and PR would reduce relative liver-related deaths by 5.2%, 10.9%, and 11.5%, respectively. Increasing treatment rates to 50% would reduce liver-related deaths by 12%, 24.7%, and 26.1%, respectively. The incremental cost-effectiveness ratios were $29,184/quality of adjusted-life years (QALY) for boceprevir and PR and $44,247/QALY for telaprevir and PR vs only PR. With the current 22% treatment rate, total system-wide costs to adopt boceprevir and PR or telaprevir and PR would range from $708 million to $943 million.
Despite substantial upfront costs of treating HCV-infected patients in the VHA with PR, or telaprevir and PR, each regimen improves quality of life and extends life expectancy, by reducing liver-related morbidity and mortality, and should be cost effective. Further efforts to expand access to direct-acting antiviral therapy are warranted.