A Prospective, Multicenter, Randomized, Blinded, Sham-controlled, Feasibility Study of Renal Denervation in Patients With Chronic Heart Failure

Not Applicable

Recruiting

• Conditions: Chronic Heart Failure; Cardio-Renal Syndrome
• Interventions: Procedure: Renal arteriography followed by renal denervation; Procedure: Sham Renal arteriography

• Registration Number: NCT04947670
• Lead Sponsor: Universität des Saarlandes

Brief Summary

The renin-angiotensin-aldosterone axis has been found to be a key system involved in heart failure disease progression and it may be inhibited by renal sympathetic denervation. Therefore, a clear need exists for further strategies to beneficially manipulate the sympathetic activation that is characteristic of the heart failure disease process.

The combined experience in the pilot studies and the EU randomized, controlled study indicates that the Paradise Catheter System can safely denervate renal sympathetic nerves of the kidney without significant periprocedural complications.

Preliminary results of a pilot study of catheter-based renal denervation in a small number of CHF patients did not show evidence of safety issues but suggest improvements in CHF symptoms. This trial will explore the safety and feasibility of renal denervation in a significantly higher number of patients with chronic heart failure. Both inter-individual and intra-individual controls will be used in order to obtain sufficient data and to in order to enable both treatment and control group to receive renal denervation.

Additionally, this feasibility trial to describe the safety and feasibility of renal denervation in patients with elevated sympathetic activity as in patients with chronic heart failure, will further the understanding of the role of renal nerves in the control of chronic heart failure and the pathogenesis of both ventricular remodeling and cardio-renal syndrome.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-06-24
• Study First Submitted QC: 2021-06-30
• Study First Posted: 2021-07-01
• Study Start: 2022-06-13
• Status Verified: 2022-11
• Last Update Submitted: 2022-11-03
• Last Update Posted: 2022-11-04
• Primary Completion: 2025-05-01
• Study Completion: 2026-05-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 144

Inclusion Criteria

• Patient with CHF diagnosed for at least 3 months prior to consent
• 6-min walk distance ≤350 m
• NYHA Class II-III symptoms of CHF
• Systolic left ventricular dysfunction as assessed by echocardiogram with left ventricular ejection fraction <45%
• eGFR calculated (CKD-EPI) >30 ml/min/1.73 m2
• NT-pro-BNP >450 pg/ml, >900 pg/ml for patients with atrial fibrillation
• Optimal medical drug therapy according to current guidelines for CHF management. This medication may include loop diuretics, ACEi/ARBs, ARNI, SGLT-2 inhibitors, aldosterone antagonists, and beta-blockers, unless intolerance to any of the above is documented. Treatment for HF must be stable (including drug and dose) for 4 weeks prior to randomization, except diuretics (2 weeks stable)
• Appropriate use of medical devices such as an implantable cardioverter defibrillator (ICD) or a cardiac resynchronization therapy (CRT) consistent with prevailing local or international guidelines, and if a device is required, it must have been implanted for at least 3 months prior to consent for CRT and 1 month prior to consent for ICD
• Age ≥18 years and ≤80 years

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Exclusion Criteria

• Renal arterial anatomy that is ineligible for treatment
• Myocardial infarction, unstable angina pectoris, or a cerebrovascular accident within 12 weeks prior to consent
• Office systolic BP at screening <90 mmHg
• Clinically significant cardiac structural valvular disease, unless corrected by a properly functional prosthetic valve
• Hypertrophic obstructive cardiomyopathy
• Major surgery in the previous 12 weeks prior to consent
• Hospitalization for decompensated CHF in the <30 days prior to consent
• Parenteral therapy for the treatment of CHF
• Respiratory support (excluding sleep apnea therapy)
• Left ventricular assist or planned heart transplantation
• Patient is pregnant, nursing, or planning to be pregnant
• Ineligibility to consent
• Primary pulmonary hypertension (systolic PAP >70 mmHg)
• BMI ≥40 kg/m²
• Any condition that would contraindicate the assessment of 6-min walk distance.
• Patient has type I diabetes mellitus

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Treatment Group	Renal arteriography followed by renal denervation	Renal denervation and maintenance of heart failure medications
Control Group	Sham Renal arteriography	Sham intervention, maintenance of heart failure medications with option for cross-over renal denervation treatment after 12 months

Primary Outcome Measures

Name	Time	Method
6 Minute Walk Test	6 months	Change in 6-min walk distance

Secondary Outcome Measures

Name	Time	Method
KCCQ	6 months	Change in Overall Summary Score measured by Kansas City Cardiomyopathy Questionnaire (KCCQ)
EQ-5D	6 months	Change in Chronic Heart Failure Questionnaire Self-Administered Standardized format (CHQ-SAS) dyspnea score
NT-proBNP	6 months	Change in plasma NT-proBNP values
eGFR	6 months	chronic eGFR slope defined as eCRF

Trial Locations

Locations (1)

Saarland University Medical Center, Department for Internal Medicine III; 🇩🇪 Homburg/Saar, Saarland, Germany