Cited by 27Medication Adherence and ComplianceBlood Pressure and Hypertension StudiesHeart Failure Treatment and Management

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Adherence and related cardiovascular outcomes to single pill vs. separate pill administration of antihypertensive triple-combination therapy

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Abstract

Objective: To compare adherence to antihypertensive treatment between patients prescribed a three-drug single-pill combination (SPC) of perindopril/amlodipine/indapamide (P/A/I) vs. the combination of an angiotensin-converting enzyme inhibitor (ACEI), a calcium-channel blocker (CCB), and a diuretic (D) as a two-drug SPC plus a third drug given separately. Methods: Using the healthcare utilization database of the Lombardy Region (Italy), the 28 210 patients, aged at least 40 years, who were prescribed P/A/I SPC during 2015–2018 were identified and the date of the first prescription was defined as the index date. For each patient prescribed the SPC, a comparator who started ACEI/CCB/D treatment as a two-pill combination was considered. Adherence to the triple combination was assessed over the year after the index date as the proportion of the follow-up days covered by prescription (PDC). Patients who had a PDC >75% were defined as highly adherent to drug therapy. Log-binomial regression models were fitted to estimate the risk ratio of treatment adherence in relation to the drug treatment strategy. Results: About 59 and 25% of SPC and two-pill combination users showed high adherence, respectively. Compared with patients under a three-drug two-pill combination, those who were treated with the three-drug SPC had a higher propensity to be highly adherent to the triple combination (2.38, 95% confidence interval: 2.32–2.44). This was the case regardless of the sex, age, comorbidities, and number of co-treatments. Conclusions: In a real-life setting, patients under three-drug SPC exhibited more frequently a high adherence to antihypertensive treatment than those prescribed a three-drug two-pill combination.

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Research works printed but not linked: 28

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Metadata

Authors
Rea, F., Morabito, G., Savaré, L., Pathak, A., Corrao, G., & Mancia, G.
Affiliations
  • University of Milano-Bicocca (IT)
  • Human Technopole (IT)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Rea, Federico
Venue
Journal of Hypertension
Published
2023-07-05
Volume
41
Issue
9
Pages
1466-1473
ISSN
  • 0263-6352 (ISSN-L)
  • 1473-5598
OpenAlex
W4383897312
Cited by
27
References
4
Citations by year
2026: 9 · 2025: 10 · 2024: 8
FWCI
8.38
Type
journal article
Language
en
Open access
Locations
  • Journal of Hypertension (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion)
Funders
  • Ministero della Salute (NET-2016-02363853)
  • Servier
Topics
  • Health Sciences › Medicine › Family Practice › Medication Adherence and Compliance
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Failure Treatment and Management
Keywords
medication adherence, single-pill combination, fixed-dose combination, ACE inhibitors, calcium channel blockers, thiazide-like diuretics, proportion of days covered, cardiovascular outcomes, antihypertensive therapy
MeSH terms
Adult, Angiotensin-Converting Enzyme Inhibitors, Antihypertensive Agents, Calcium Channel Blockers, Drug Combinations, Drug Therapy, Combination, Humans, Hypertension, Amlodipine, Medication Adherence

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