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Ultra-low-dose quadruple combination blood pressure-lowering therapy in patients with hypertension: The QUARTET randomized controlled trial protocol.

Abstract：

:High blood pressure is the leading cause of preventable morbidity and mortality globally. Many patients remain on single-drug treatment with poor control, although guidelines recognize that most require combination therapy for blood pressure control. Our hypothesis is that a single-pill combination of 4 blood pressure-lowering agents each at a quarter dose may provide a simple, safe, and effective blood pressure-lowering solution which may also improve long-term adherence. The Quadruple UltrA-low-dose tReaTment for hypErTension (QUARTET) double-blind, active-controlled, randomized clinical trial will examine whether ultra-low-dose quadruple combination therapy is more effective than guideline-recommended standard care in lowering blood pressure. QUARTET will enroll 650 participants with high blood pressure either on no treatment or on monotherapy. Participants will be randomized 1:1 and allocated to intervention therapy of a single pill (quadpill) containing irbesartan 37.5 mg, amlodipine 1.25 mg, indapamide 0.625 mg, and bisoprolol 2.5 mg or to control therapy of a single identical-appearing pill containing irbesartan 150 mg. In both arms, step-up therapy of open-label amlodipine 5 mg will be provided if blood pressure is >140/90 at 6 weeks. The primary outcome is the difference between groups in the change from baseline in mean unattended automated office systolic blood pressure at 12-week follow-up. The primary outcome and some secondary outcomes will be assessed at 12 weeks; there is an optional 12-month extension phase to assess longer-term efficacy and tolerability. Our secondary aims are to assess if this approach is safe, has fewer adverse effects, and has better tolerability compared to standard care control. QUARTET will therefore provide evidence for the effectiveness and safety of a new paradigm in the management of high blood pressure.

journal_name

Am Heart J

journal_title

American heart journal

authors

Chow CK,Atkins ER,Billot L,Chalmers J,Hillis GS,Hay P,Neal B,Nelson M,Patel A,Reid CM,Schlaich M,Usherwood T,Webster R,Rodgers A

doi

10.1016/j.ahj.2020.09.017

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

56-67

eissn

0002-8703

issn

1097-6744

pii

S0002-8703(20)30273-8

journal_volume

231

pub_type

杂志文章,多中心研究,随机对照试验

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Ultra-low-dose quadruple combination blood pressure-lowering therapy in patients with hypertension: The QUARTET randomized controlled trial protocol.