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Published on: February 14, 2021
Chronic baroreflex activation: a potential therapeutic approach to heart failure with preserved ejection fraction
Dimitrios Georgakopoulos1, William C Little, William T Abraham
1CVRx Inc., 9201 West Broadway Avenue, Minneapolis, MN 55445, USA. dgeorgakopoulos@cvrx.com
Insights
Baroreflex activation therapy (BAT) shows promise for treating heart failure with preserved ejection fraction (HFpEF). The HOPE4HF trial will assess its safety and effectiveness in patients with this condition.
Area of Science:
- Cardiology
- Medical Devices
- Clinical Trials
Background:
- Heart failure with preserved ejection fraction (HFpEF) is a major public health concern with poor patient outcomes and high healthcare costs.
- Currently, no therapies have demonstrated efficacy in randomized clinical trials for HFpEF.
- Hypertension is a primary comorbidity in HFpEF patients.
Purpose of the Study:
- To review evidence supporting Baroreflex activation therapy (BAT) as a potential treatment for HFpEF.
- To introduce the HOPE4HF trial (NCT00957073), a randomized outcomes trial evaluating BAT in HFpEF.
Main Methods:
- Baroreflex activation therapy (BAT) involves stimulating carotid sinuses with an implanted device (Rheos).
- The HOPE4HF trial is a randomized outcomes study.
- The trial will evaluate the clinical safety and efficacy of BAT in the HFpEF population.
Main Results:
- Evidence suggests potential benefits of BAT for HFpEF, including regression of left ventricular hypertrophy.
- BAT may normalize sympathovagal balance and inhibit the renin-angiotensin-aldosterone system.
- Potential benefits also include arterio- and venodilation and renal function preservation.
Conclusions:
- Baroreflex activation therapy (BAT) presents a promising therapeutic strategy for heart failure with preserved ejection fraction (HFpEF).
- The HOPE4HF trial is crucial for determining the clinical safety and efficacy of BAT in this patient population.
Abstract:
Heart failure with preserved ejection fraction (HFpEF) is a substantial public health issue, equal in magnitude to heart failure with reduced ejection fraction. Clinical outcomes of HFpEF patients are generally poor, related annual accrual of health care expenses amount to billions of dollars, and no therapy has been shown to be effective in randomized clinical trials. Baroreflex activation therapy (BAT) produced by stimulating the carotid sinuses using an implanted device (Rheos) is being studied for the treatment of hypertension, the primary comorbidity of HFpEF. Other potential benefits include regression of left ventricular hypertrophy, normalization of the sympathovagal balance, inhibition of the renin-angiotensin-aldosterone system, arterio- and venodilation, and preservation of renal function. This paper reviews the evidence suggesting that BAT may be a promising therapy for HFpEF and introduces the HOPE4HF trial (ClinicalTrials.gov Identifier: NCT00957073), a randomized outcomes trial designed to evaluate the clinical safety and efficacy of BAT in the HFpEF population.
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