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Low Utilization of Direct-Acting Antiviral Agents in a Large National Cohort of HIV and HCV Coinfected Medicare Patients in the United States: Implications for HCV Elimination

Hepatitis C virus (HCV) infection is common in people living with HIV/AIDS (PLWHA). The advent of direct-acting antiviral agents (DAAs) has made HCV elimination a realistic goal. We conducted a retrospective cohort study using the US Medicare Fee-For-Service claims data and outpatient prescription drug data to assess the HCV DAA initiation and completion among newly diagnosed HIV–HCV-coinfected Medicare patients enrolled in 2014-2016. DAA initiation was defined as filling at least 1 prescription of DAAs during 2014-2016. DAA completion was defined as taking an 8-week or longer DAA treatment course for patients without cirrhosis and a 12-week or longer treatment duration for those with cirrhosis. Among 12 152 HIV–HCV-coinfected Medicare patients, 20.9% received the DAA treatment in 2014-2016. The average time from HCV diagnosis to DAA initiation was 277 days. The overall DAA completion rate was 92% among 2537 patients who used DAAs. Interventions are needed to improve DAA uptake in PLWHA.