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

NCT ID: NCT04947670

Last Updated: 2025-12-02

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: NA
• Total Enrollment: 4 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-06-13
• Study Completion Date: 2024-09-06

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.

Conditions

Chronic Heart Failure; Cardio-Renal Syndrome

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

Treatment Group

Renal denervation and maintenance of heart failure medications

Group Type: EXPERIMENTAL

Renal arteriography followed by renal denervation

Intervention Type: PROCEDURE

Renal arteriography followed by renal denervation

Control Group

Sham intervention, maintenance of heart failure medications with option for cross-over renal denervation treatment after 12 months

Group Type: SHAM_COMPARATOR

Sham Renal arteriography

Intervention Type: PROCEDURE

Renal arteriography only

Interventions

Renal arteriography followed by renal denervation

Renal arteriography followed by renal denervation

Intervention Type: PROCEDURE

Sham Renal arteriography

Renal arteriography only

Intervention Type: PROCEDURE

Eligibility Criteria

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

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

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Interdisciplinary Center Clinical Trials (IZKS), University Medical Center Mainz

UNKNOWN

Sponsor Role: collaborator

Universität des Saarlandes

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Felix Mahfoud, MD

Role: PRINCIPAL_INVESTIGATOR

Saarland University Medical Center

Locations

Saarland University Medical Center, Department for Internal Medicine III

Homburg/Saar, Saarland, Germany

Countries

Germany

Other Identifiers

RE-ADAPT-HF (2021)

Identifier Type: -

Identifier Source: org_study_id