Fixed‐dose vs free‐dose combinations for the management of hypertension—An analysis of 81 958 patients
2018
: Fixed-dose combinations (FDC) have been developed to reduce the pill burden for hypertensive patients. Data on fixed-dose or free-dose (freeDC) ramipril/amlodipine (R/A) or candesartan/amlodipine (C/A) combination treatment initiation were assessed. 71 463 patients were prescribed R/A and 10 495 C/A. For both R/A and C/A, FDC patients were younger (both P < .001) and less comorbid. Prior MI (OR: 0.61 and 0.60), prior stroke (OR: 0.68 and 0.70) and CHD (OR: 0.68 and 0.64) were negatively associated with FDC use, whereas hyperlipidemia was positively associated (OR: 1.26 and 1.19). Use of antihypertensive comedication (OR: 0.78; OR: 0.55) and treatment discontinuation within 12 months (HR: 0.65 and 0.82) were less likely in FDC patients, who also showed superior adherence (mean MPR; both P < .001). Cost of the combination was higher for FDCs (both P < .001). FDCs improve persistence and adherence, although they are more commonly prescribed in patients with less cardiovascular disease.
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