To Assess the Safety and Efficacy of the Atrial Shunt Implant System in the Treatment of Patients With Chronic Left Heart Failure

Not Applicable

Recruiting

• Conditions: Left Heart Failure
• Interventions: Device: Atrial shunt implant system

• Registration Number: NCT05486000
• Lead Sponsor: Morningside (Nantong) Medical Co.,Ltd

Brief Summary

This trial is a prospective, multicenter, single-group target-value clinical trial in which patients with chronic left heart failure are planned to be recruited.

Using the atrial shunt implantation system developed and produced by Morningside (Nantong) Medical Device Co., Ltd., the atrial septum is used to implant the instruments in the atrial septum.

to verify the safety and efficacy of the atrial shunt implant system for the treatment of patients with chronic left heart failure.

Detailed Description

This trial will be carried out in a number of clinical trial institutions in China, and a total of 120 subjects are planned to be included, and all subjects are in progress The single group was registered and surgically treated with an atrial shunt implant system and within 7 days of surgery or at the time of discharge, 30 days after surgery Clinical follow-up was carried out at 3 months after surgery, 6 months after surgery, and 12 months after surgery, followed by data collection, evaluation and statistics Analysis and 12 months of phased clinical summary submitted registration application, on this basis, complete 2 years, 3 years of long-term follow-up.

Study Timeline

• Status Verified: 2022-07
• Study First Submitted: 2022-07-26
• Study Start: 2022-08
• Study First Submitted QC: 2022-08-01
• Last Update Submitted: 2022-08-01
• Study First Posted: 2022-08-03
• Last Update Posted: 2022-08-03
• Primary Completion: 2026-10
• Study Completion: 2026-10

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 120

Inclusion Criteria

1. Age ≥ 18 years;
2. Consistently stable GDMT (Guidelines for Guiding Drugs) according to The Chinese Guidelines for the Diagnosis and Treatment of Heart Failure 2018 Treatment) heart failure for patients with chronic left heart failure who are still symptomatic for at least 1 month;
3. History of hospital admission to heart failure in the past 12 months, serum BNP or NT-proBNP liters" within 6 months High (BNP in sinus rhythm patients> 70 pg/ml, atrial fibrillation patients > 200 pg/ml, or sinus rhythm patients NT-proBNP"> 200 pg/ml, patients with atrial fibrillation >600 pg/ml);
4. Cardiac catheterization measures resting mean lung capillary wedge pressure PCWP or left atrial pressure LAP≥15 mmHg,And the difference between the RAP order of pulmonary capillary wedge pressure PCWP and right atrial pressure is ≥ 5 mmHg；
5. Cardiac Function Classification (NYHA) Grade II-IV;
6. The patient or his/her guardian can understand the purpose of the study, voluntarily participate and sign a written informed consent form, which is acceptable Patients followed up； -

Exclusion Criteria

1. Primary organic valvular disease and severe coronary artery disease requiring revascularization that are currently indicated for surgical intervention Changes, heart-related diseases indicated for pacemaker implantation treatment;
2. Pulmonary hypertension (pulmonary vascular resistance PVR>4WoodsUnits);
3. History of myocardial infarction or heart treatment surgery within three months;
4. Patients with infective endocarditis or ultrasound findings of thrombosis or vegetations in the heart;
5. Anatomical abnormalities that make surgery unfinished or anatomically unsuitable for surgery;
6. Life expectancy < 12 months;
7. History of stroke, transient cerebral ischemia, deep vein thrombosis or pulmonary embolism in the past 6 months;
8. Pregnant or lactating women, or persons with family planning in the next year;
9. Subjects whose judgement of poor compliance and who were unable to complete the study as required; -

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
treatment group	Atrial shunt implant system	This group contains patients with chronic left heart failure who are undergoing intervention in the atrial shunt implant system

Primary Outcome Measures

Name	Time	Method
The clinical treatment success rate was 12 months after operation	Twelve months after surgery	Death and heart failure-related rehospitalization were avoided 12 months after surgery

Secondary Outcome Measures

Name	Time	Method
Surgical success rate	Immediately after surgery	On the basis of the success of the instrument, ultrasound is seen in simple left-to-right shunting immediately after surgery
Instrument success rate	Intraoperative	The diverter was successfully implanted, the morphology was normal, and the conveyor system was successfully withdrawn
NT-proBNP or BNP variation	Preoperative screening ，Before discharge, 30 days after surgery, 3 months, 6 months, 1 year	Corresponding follow-up sites are obtained by laboratory blood tests
New York Cardiac Function Grading NYHA	Preoperative screening ，30 days, 3 months, 6 months, 1 year, 2 years, 3 years after surgery	New York Cardiac Function Grading NYHA is divided into four levels, which are determined according to the clinical presentation of the patient, and the higher the level, the more severe the symptoms of heart failure
Incidence of device-related serious adverse events	30 days after surgery	Serious adverse events related to the instrument that occur after the implantation of the instrument, such as the shedding of the instrument, embolism, causing damage to the mitral or tricuspid valve, causing severe arrhythmias, infectious endocarditis, any need to re-operate the instrument to remove the instrument, etc
6 minutes walking distance change	Preoperative screening ，30 days, 3 months, 6 months, 1 year after surgery 30 days, 3 months, 6 months, 1 year, 2 years, 3 years after surgery	The participants were assessed at the appropriate follow-up site
Probability of postoperative echocardiographic changes	During surgery, before discharge, 30 days after surgery, 3 months, 6 months, 1 year	Obtained through instrumentation inspection
Kansas City Cardiomyopathy Quality of Life Scale KCCQ Changes	Preoperative screening ，30 days, 3 months, 6 months, 1 year after surgery	Kansas City Cardiomyopathy Quality of Life Scale KCCQ Changes consisted of a total of 23 items with a score between 0-100, with higher scores indicating less adverse effects of heart failure on a patient's quality of life
Serious adverse events and incidence of adverse events	Intraoperative complications, 30 days before discharge, 3 months, 6 months, 1 year, 2 years, 3 years	Events that occur during clinical trials that result in death or serious deterioration of health status, as well as the probability of adverse medical events that occur after a subject is treated with a trial product

Trial Locations

Locations (1)

Atrial shunt implant system; 🇨🇳 Nantong, Jiangsu, China