Lipid-modifying therapy and attainment of cholesterol goals in Europe: the Return on Expenditure Achieved for Lipid Therapy (REALITY) study

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Abstract
Background: Few studies have been conducted in actual clinical practice settings to evaluate the ways in which dyslipidemia is managed using lipid-modifying therapies. Objective: To determine lipid-modifying therapy practices and their effects on low-density lipoprotein cholesterol (LDL‐C) and/or total cholesterol (TC) goal attainment in Europeans based on prevailing guidelines at the time of therapy in each country. Methods: Retrospective cohort analysis involving 58 223 patients initiated on lipid-modifying therapies in 10 European countries, with a median patient follow-up on lipid-modifying therapy of 15.3 months. Data on prescriptions of lipid-modifying therapies, laboratory data including LDL‐C and TC, achievement of cholesterol goals for LDL‐C and/or TC, and hospitalizations were obtained from healthcare administrative databases and/or patient chart reviews. Results: Across Europe, statin monotherapy was the initial lipid-modifying treatment in 51 786 (89.3%) of 58 009 patients with available data. In addition, 38 853 (89.5%) of 43 410 patients with available follow-up statin potency data were initiated on statin regimens of medium or lower equipotency. Low-equipotency regimens include atorvastatin 5 mg, simvastatin 10 mg, and pravastatin 20 mg, whereas medium-equipotency regimens include atorvastatin 10 mg, simvastatin 20 mg, and pravastatin 40 mg. Regimens were adjusted to higher equipotency via either up-titration or switches to combination regimens in 16.2% of patients. On average, 40.5% of patients across Europe who were not initially at guideline recommended cholesterol goals (either LDL‐C or TC) and had follow-up data attained recommended cholesterol levels, including < 30% of patients in Spain, Italy, or Hungary. In many countries, the likelihood of goal attainment was inversely associated with baseline cardiovascular risk and/or LDL‐C levels. Conclusions: Lipid management strategies in Europe during the study period were dominated by statin monotherapy. Even after prolonged follow-up on lipid-modifying therapy, approximately 60% of Europeans studied did not achieve guideline recommended cholesterol goals. Future emphasis must be placed on subsequent lipid panel monitoring, as well as the use of more efficacious, well-tolerated lipid-modifying therapies such as dual cholesterol inhibitors to enable more European patients to attain their recommended cholesterol goals.

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