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Modelling impact of changes in testing and treatment for HCV in Australia. David Wilson and James Jansson. Hepatitis C infection, 2001 – 2010, by year and age group. Newly acquired hepatitis C, 2001 – 2010, by year and age group. Hepatitis C treatment. Before 2004
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Modelling impact of changes in testing and treatment for HCV in Australia David Wilson and James Jansson
Newly acquired hepatitis C, 2001 – 2010, by year and age group
Hepatitis C treatment • Before 2004 • Standard interferon and ribavirin • Since 2004 • Pegylatedinterferon (PEG-IFN) and ribavirincombination • 24 or 48 weeks of weekly injections & daily oral doses • Cure rate of • 40-50% for genotype 1 (55% in Australia) • 70-80% for non-1 genotypes • Near future (PBS listed from late 2012/early 2013; increases in numbers on therapy from 2015) • IFN removed; first DAA agents (telaprevir, bocperevir) • SVR for genotype 1: 75% in 2013/2014 • SVR of 85% for all genotypes from 2015
Hepatitis C cases treated • Before 2004 • 1,500-2,000 • Since 2004 • ~3,500 and steady • Future • Current treatment scenario: 3,500 treated per year • Increase scenario 1: increase to 7,000 from 2015 onwards • Increase scenario 2: increase to 10,500 from 2016 onwards • Increase scenario 3: increase to 14,000 from 2017 onwards
MODEL ASSUMPTIONS • Model fitted to available epidemiological and behavioural data • Matched HCV diagnoses • Matched HCV prevalence among male/female IDUs • Non-IDU / former-IDU • 70% of cases diagnosed • Disease progression rates based on literature • Past trajectories consistentwith projections from Working Group
Health economics • Using treatment cure rates for current treatments • New treatments will be even more cost-effective Cost-effective