About this trial
The purpose of this clinical study is to evaluate the safety and early effectiveness of a catheter-based procedure that treats a nerve called the right greater splanchnic nerve. The study includes people who have heart failure with preserved ejection fraction (HFpEF). The goal is to learn whether this procedure, performed using the Satera Ablation System, may help improve symptoms and to better understand which patients may benefit most from this treatment in the future.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Symptoms of HF requiring current (intermittent or continuous) treatment with diuretics for >30 days, AND
NYHA class II with a history of >NYHA class II in the past year, NYHA class III, or ambulatory NYHA class IV symptoms (paroxysmal nocturnal dyspnea, orthopnea, dyspnea on mild or moderate exertion) at screening or signs of HF (any rales post cough, chest x-ray demonstrating pulmonary congestion), AND
Ongoing stable GDMT HF management (unless unable to tolerate GDMT) and management of potential comorbidities according to the 2022 ACCF/AHA Guideline for the Management of Heart Failure (Class 1 and 2a recommendations), with no significant changes [≥100% increase or ≥50% decrease] for a minimum of 1 month (30 days) prior to screening, that is expected to be maintained without change for at least 6 months. Participants cannot have started a glucagon-like peptide (GLP)-1 or gastric inhibitory peptide (GIP) agonist within the last 6 months or plan to start a GLP-1 or GIP agonist within the ensuing 6 months after enrollment.
LVEF ≥50% (site-determined by transthoracic echocardiography) within the past 6 months.
Disqualifiers
MI (type I) and/or percutaneous cardiac intervention within 3 months prior to screening; CABG in past 3 months prior to screening, or current indication for coronary revascularization.
Cardiac resynchronization therapy initiated within 3 months prior to screening.
ACC/AHA/ESC Stage D HF or non-ambulatory NYHA Class IV HF.
Inotropic infusion (continuous or intermittent) within 6 months prior to screening.
Trial design
Parallel
Treatments tested in this trial
Greater Splanchnic Nerve Ablation
DeviceThe greater splanchnic nerve (GSN) ablation procedure begins with a small needle puncture in the groin or neck to access a vein, using methods that are commonly used for heart procedures. Doctors then guide thin tubes and wires through the vein to reach a nerve called the right greater splanchnic nerve. X-ray imaging is used to help the doctor see where the catheter is and guide it to the correct location. Once the catheter is in the right place, the doctor uses the device to treat the nerve using controlled heat.
Sham Control
DeviceDuring the sham procedure, a small needle puncture will be made in the groin or neck to access a vein using standard medical techniques. A short tube will be placed into the vein, similar to what is done for many heart procedures. The Satera catheter and treatment devices will not be inserted, and the nerve will not be treated. The procedure will take about the same amount of time as the treatment procedure.
Treatment groups
Trial outcomes
Primary outcomes
Primary Safety Endpoint: Device or procedure related serious adverse events
Evaluation of device or procedure-related serious adverse events at 1-month follow-up based on Clinical Events Committee (CEC) assessment
Primary Efficacy Endpoint: KCCQ (6 months)
Assessment of change in Kansas City Cardiomyopathy Questionnaire (KCCQ) from baseline to 6-month follow up visit
Primary Efficacy Endpoint: 6MWT (6 months)
Assessment of change in Six Minute Walk Test (6MWT) from baseline to the 6-month follow up visit
Secondary outcomes
Pulmonary Capillary Wedge Pressure (PCWP)
Change in pulmonary capillary wedge pressure (PCWP) at resting, legs up, 20 Watts, and Peak Exercise Stage from Baseline to the 1-month follow up visit
Stress blood volume
Change in estimated stress blood volume at resting, legs up, 20Watts, and Peak Exercise Stage from Baseline to the 1-month follow up visit.
NT-proBNP
Change in NT-proBNP levels from Baseline through the 24-month visit
KCCQ (24-months)
Change in KCCQ scores from baseline through the 24-month visit
Other outcomes
Exploratory endpoint: Heart failure related medication changes (24-months)
Freedom from heart failure related medication changes through the 24-month visit
Exploratory Endpoint: Diuretic medication (24-months)
Change in diuretic dose through the 24-month visit
Exploratory Endpoint: Diastolic function (24-months)
Assessment of diastolic function by transthoracic echocardiography evaluated over time from baseline through 24-months
Exploratory Endpoint: C-reactive protein
Change in c-reactive protein levels from Baseline through 24-months
Sponsors and contacts
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Axon Therapies, Inc.
Lead sponsor
NAMSA
Collaborator
Cardiovascular Research Foundation, New York
Collaborator
Northwestern University
Collaborator