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Economic Evaluation of the Hepatitis C Virus Elimination Program in the Country of Georgia, 2015 to 2017.

BACKGROUND AND AIMS
In 2015, the country of Georgia launched an elimination program aiming to reduce prevalence of Hepatitis C virus (HCV) infection by 90% from 5.4% prevalence (~150,000 people). During the first 2.5 years of the program, 770,832 people were screened, 48,575 were diagnosed with active HCV infection, and 41,483 patients were treated with direct-acting antiviral (DAA) based regimens, with >95% cure rate.


METHODS
We modelled the incremental cost-effectiveness ratio (ICER) of HCV screening, diagnosis, and treatment between April 2015 and November 2017 compared to no treatment, in terms of cost per quality-adjusted life year (QALY) gained in 2017 US dollars, with 3% discount rate over 25 years. We compared the ICER to willingness-to-pay (WTP) thresholds of US$4357 (GDP) and US$871 (opportunity-cost) per QALY gained.


RESULTS
The average cost of screening, HCV viremia testing, and treatment per patient treated was $386 to the provider, $225 to the patient, and $1042 for generic DAAs. At 3% discounting, 0.57 QALYs were gained per patient treated. The ICER from the perspective of the provider including generic DAAs was $2,285 per QALY gained, which is cost-effective at the $4357 WTP threshold, while if patient costs are included it's just above the threshold at $4,398/QALY. All other scenarios examined in sensitivity analyses remain cost-effective except for assuming a shorter time horizon to end of 2025, or including list price DAA cost. Reducing or excluding DAA costs reduced the ICER below the opportunity-cost WTP threshold.


CONCLUSIONS
The Georgian HCV elimination program provides valuable evidence that national programs for scaling up HCV screening and treatment for achieving HCV elimination can be cost-effective.