REAL-WORLD STATIN UTILIZATION AMONG PATIENTS AT HIGH RISK FOR CARDIOVASCULAR EVENTS- US ANALYSES

Author(s)

Lin I1, Sung JC2, Sanchez R3, Mallya UG2, Friedman M1, Panaccio M2, Koren A2, Neumann PJ4, Menzin J1
1Boston Health Economics, Inc., Waltham, MA, USA, 2Sanofi US, Inc., Bridgewater, NJ, USA, 3Regeneron Pharmaceuticals, Tarrytown, NY, USA, 4Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies,Tufts Medical Center, Boston, MA, USA

OBJECTIVES: Objective: Despite the efficacy and safety of statins, real-world data suggest they are suboptimally used among dyslipidemic patients. The current study sought to describe patterns of statin utilization among high cardiovascular (CV)-risk patients initiating statin therapy. METHODS: Methods: Adult patients (≥18 years) with continuous enrollment who were newly initiating statins were identified from the Truven MarketScan Research databases (01/2007-06/2013). Patients were selected for and stratified into 1 of 5 mutually exclusive, high CV-risk–based hierarchical categories: recent acute CV event ( hospitalization for acute coronary syndrome [ACS] or other CV event within 90 days of index), coronary heart disease (CHD), ischemic stroke, peripheral vascular disease/peripheral artery disease (PVD/PAD), and diabetes. Descriptive statistics and time-to-event analyses were used to measure proportion of days covered (PDC), time to discontinuation, and hospitalization rates. RESULTS: Results: Among 541,221 high CV-risk patients, 61% were in the diabetes cohort, followed by recent acute CV event (26%), PVD/PAD (5%), CHD (4%), and ischemic stroke (4%). High-intensity statins (atorvastatin 40/80 mg, rosuvastatin 20/40 mg, simvastatin 80 mg) were initiated in 15% of patients, with the percentages varying among subgroups (10% [diabetes] to 31% [ACS]). More than 20% of high-intensity statin initiators switched to a moderate- to low-intensity statin (range, 19% [PVD/PAD] to 28% [other CV event]). The PDC ranged from 56% (diabetes) to 66% (ACS). Median time to statin discontinuation among high CV-risk patients was approximately 15 months. Median time to discontinuation among patients receiving high-intensity versus moderate- to low-intensity statin was 21 months and 15 months, respectively. At 1 year, Kaplan-Meier estimates of cumulative event rates for CV-related hospitalizations were lowest in the diabetes cohort and highest for patients with recent ACS hospitalization (4% and 22%, respectively). CONCLUSIONS: Conclusion: Low PDC and discontinuation of statin therapy were observed among high CV-risk patients. Interventional opportunities to ensure better therapy management are warranted.

Conference/Value in Health Info

2015-05, ISPOR 2015, Philadelphia, PA, USA

Value in Health, Vol. 18, No. 3 (May 2015)

Code

PCV129

Topic

Health Service Delivery & Process of Care

Topic Subcategory

Treatment Patterns and Guidelines

Disease

Cardiovascular Disorders

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