Objective: To study treatment persistence and mortality using a single-pill, fixed-dose combination tablet compared with a two-pill combination for hypertension.
Research Design And Methods: We analyzed Australian Pharmaceutical Benefit Scheme records 2011-2014 in a 10% random sample of concessional patients prescribed concomitant amlodipine and perindopril - either as a single-pill, fixed-dose combination tablet (n = 9340) or as two-pill combination therapy (n = 3093). Main outcome measures were: (a) proportions failing to continue amlodipine + perindopril over time, (b) proportions failing to continue any subsequent calcium channel and angiotensin inhibition therapy over time and (c) proportions dying.
Results: After 12 months, 34% of single-pill and 57% of two-pill users discontinued amlodipine + perindopril, median persistence time 42 months versus 7 months; 28% and 47% respectively discontinued any calcium channel-angiotensin inhibition therapy. After 48 months, 8% of single-pill and 18% of two-pill users had died. In a multivariate model adjusted for age, gender, duration and intensity of prior hypertension therapy, initial dose of amlodipine and perindopril, diabetes, hyperlipidemia, and complexity of care, the hazard ratio for risk of discontinuation over 42 months in the two-pill versus single-pill amlodipine + perindopril group was 1.94 (95% CI 1.83-2.06). The hazard ratio for discontinuation in two-pill versus single-pill users of any calcium channel-angiotensin inhibition therapy was 1.86 (1.74-1.99). The adjusted hazard ratio for risk of death over 48 months was 1.83 (1.55-2.16), but the mortality outcome may be an overestimate due to residual confounding.
Conclusions: Use of a single-pill, fixed-dose combination in hypertension is associated with superior persistence and reduced mortality compared with use of two pills, suggesting a higher priority for the use of fixed-dose combinations.
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http://dx.doi.org/10.1080/03007995.2017.1367275 | DOI Listing |
Drugs Aging
November 2024
The Pain Clinic, Mount Alvernia Hospital, Singapore, Singapore.
Pain is common in older adults and managing pain in this population can be challenging owing to altered pharmacokinetics, multimorbidity, polypharmacy, cognitive impairment, and physical frailty. A fixed-dose combination (FDC) analgesic contains two or more pharmaceutical ingredients in a single pill and may offer more benefits when compared with loose-dose formulations. The benefits include reduced pill burden and better adherence, a broader analgesic spectrum well-suited to multimechanistic pain conditions and more predictable pharmacokinetic and pharmacodynamic properties.
View Article and Find Full Text PDFLancet
October 2024
Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.
Background: Single-pill combinations (SPCs) of three low-dose antihypertensive drugs can improve hypertension control but are not widely available. A key issue for any combination product is the contribution of each component to efficacy and tolerability. This trial compared a new triple SPC called GMRx2, containing telmisartan, amlodipine, and indapamide, with dual combinations of components for efficacy and safety.
View Article and Find Full Text PDFEClinicalMedicine
September 2024
Division of Global Health Protection, Global Health Center, Centers for Disease Control and Prevention, 1600 Clifton RD NE MS H21-7, Atlanta, GA, 30329, USA.
Background: International hypertension treatment guidelines recommend initiating pharmacological treatment with combination therapy and using fixed dose single pill combinations (SPCs) to improve adherence. However, few countries have adopted combination therapy as a form of first-line treatment and SPC uptake in low- and middle-income countries is low due in part to cost and availability. Evidence on costs and cost-effectiveness is needed as health authorities consider incorporating new recommendations into national clinical practice guidelines.
View Article and Find Full Text PDFIntroduction: A polypill-based implementation strategy has been proposed to increase rates of guideline-directed medical therapy (GDMT) in patients with heart failure with reduced ejection fraction. This has the potential to improve mortality and morbidity in India and undertreated populations globally.
Methods: We conducted a convergent parallel mixed methods study integrating quantitative data from stakeholder surveys using modified implementation science outcome measures and qualitative data from key informant in-depth interviews.
J Am Coll Cardiol
December 2024
Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA.
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