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Published on: May 10, 2022
Cost burden of hepatitis C virus treatment in commercially insured patients
Christine Y Lu1, Dennis Ross-Degnan, Fang Zhang
1Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, 401 Park Dr, Ste 401 East, Boston, MA 02215.
Insights
New direct-acting antivirals (DAAs) for hepatitis C virus (HCV) significantly increased treatment rates and health plan costs. Patient out-of-pocket spending remained low, but no immediate financial benefits to health plans were observed.
Area of Science:
- Hepatology
- Pharmacoeconomics
- Public Health
Background:
- Direct-acting antivirals (DAAs) revolutionized hepatitis C virus (HCV) treatment starting in late 2013.
- These highly effective therapies present significant financial challenges for patients and healthcare systems.
- Understanding medication use and associated costs in insured populations is crucial.
Purpose of the Study:
- To analyze the utilization and economic impact of new DAAs for HCV in a commercially insured cohort.
- To identify factors associated with the uptake of these novel HCV treatments.
Main Methods:
- A retrospective cohort study design was employed.
- Claims data from 3091 individuals diagnosed with HCV between 2012 and 2015 were analyzed.
- Key outcomes included HCV medication use, inflation-adjusted spending (health plan and out-of-pocket), and predictors of DAA receipt.
Main Results:
- HCV medication treatment increased from 9% to 32% between 2012 and 2015, with 589 individuals receiving new DAAs.
- Average annual health plan spending per HCV-diagnosed member surged by 475% ($2,869 to $16,504), while patient out-of-pocket costs rose by 131% ($41 to $94).
- Older age (50-64 and ≥65 years) and liver cirrhosis were associated with receiving DAAs, whereas alcohol abuse diagnosis was negatively associated.
Conclusions:
- The introduction of DAAs dramatically increased HCV treatment rates within two years.
- While patient out-of-pocket expenses were minimized, the health plan absorbed nearly all medication costs.
- No short-term financial advantages for health plans were evident from HCV cures during the study period.
Objectives:
New direct-acting antivirals (DAAs), introduced in late 2013, are effective for treating chronic hepatitis C virus (HCV) infection but may pose substantial financial burden on patients and health insurers. We examined HCV medication use and costs in a commercially insured population.
Study Design:
Retrospective cohort study.
Methods:
We used claims data for 3091 individuals with HCV infection (2012-2015). Outcomes included HCV medication use, inflation-adjusted out-of-pocket (OOP) and health plan spending, and predictors of receiving new DAAs.
Results:
Cumulatively, 9% of members with a diagnosis of HCV were treated with HCV medications in 2012 and this increased to 32% in 2015. Of 3091, 589 received new DAAs and 80% (n = 465) completed a 12-week treatment regimen. After new DAAs became available, average annual health plan spending on HCV medications increased from $2869 to $16,504 per HCV-diagnosed member (relative change, 475%; 95% CI, 352%-598%), and OOP spending increased from $41 to $94 (relative change, 131%; 95% CI, 15%-247%). Age (being aged 50-64 years [adjusted odds ratio (aOR), 2.13; 95% CI, 1.29-3.53] and being ≥65 years [aOR, 2.01; 95% CI, 1.14-3.55] compared with being <30 years) and having liver cirrhosis (aOR, 3.34; 95% CI, 2.64-4.21) were positively associated with receiving new DAAs, and a diagnosis of alcohol abuse (aOR, 0.70; 95% CI, 0.53-0.92) was negatively associated with receiving new DAAs.
Conclusions:
The proportion of a commercially insured population with HCV infection who were treated with HCV medications doubled within 2 years following availability of new DAAs. Member OOP spending was kept low while the health plan bore 99% of the cost of HCV medications. During our 2-year follow-up, we did not observe financial benefits to the health plan of the cure of HCV infection by new DAAs.
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