HARMONY Trial : To Evaluate a Therapeutic and Monitoring Device(NOVAtria System) for Heart Failure Management
The Study of a tHerApeutic and monitoRing Device iMplanted at the Atrial Septum prOvides Heart Failure maNagement in sYmptomatic Patients (HARMONY Trial)
1 other identifier
interventional
330
1 country
15
Brief Summary
The objective of the HARMONY trial is to evaluate the safety and efficacy of implantable left atrial pressure sensor and interatrial shunt system for the treatment of chronic heart failure with reduced left ventricular ejection fraction (HFrEF, EF ≤ 40%) and New York Heart Association(NYHA) functional Class II or Class III who at baseline are treated with guideline-directed drug and device therapies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable heart-failure
Started Mar 2026
15 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 29, 2026
CompletedFirst Posted
Study publicly available on registry
February 11, 2026
CompletedStudy Start
First participant enrolled
March 16, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2028
May 8, 2026
April 1, 2026
2.2 years
January 29, 2026
May 7, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Primary Safety endpoint
Safety-Percentage of Treatment patients experiencing major device-related adverse events.Percentage of Treatment group patients experiencing any device-related Major Adverse Cardiovascular or Neurological Events (MACNE) during the first 30-days after randomization, compared to a pre-specified Performance Goal
30-days after randomization
Composite Primary Effective endpoint
Effectiveness-Hierarchical composite of death, heart transplant or left ventricular assist device (LVAD) implantation, HF hospitalizations, worsening HF events treated as an outpatient, and change in 6WMT
Follow-up duration at endpoint analysis ranges from a minimum of 12 to a maximum of 24 months
Study Arms (3)
Treatment
EXPERIMENTALTreatment arm patients will undergo a right heart catheterization and invasive echocardiography to determine study eligibility and TEE guided trans-septal puncture and NOVAtria® system procedure
Control
OTHERControl arm patients will undergo a diagnostic right heart catheterization and invasive echocardiography to determine study eligibility, but will not have transseptal catheterization or device implantation
Roll in
EXPERIMENTALRoll in arm patients will undergo a diagnostic right heart catheterization and invasive echocardiography to determine study eligibility followed by transseptal catheterization and NOVAtria® system procedure
Interventions
The NOVAtria System, therapeutic and monitoring device will be implanted at interatrial septum with minimally invasive cardiac catheterization procedure
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years old
- Clinically diagnosed with chronic heart failure
- Receiving guideline directed medical and device therapy (GDMT) for heart failure
- Left ventricular ejection fraction (LVEF) ≤ 40% assessed by echocardiography
- New York Heart Association (NYHA) functional class II or III, with NYHA II criteria met simultaneously; for NYHA III, at least one of the following must be satisfied:
- At least one hospitalization for heart failure within the past 12 months;
- Elevated BNP or NT-proBNP within 3 months prior to enrollment (under normal sinus rhythm, NT-proBNP \> 900 pg/mL; under atrial fibrillation, NT-proBNP \> 1500 pg/mL; under normal sinus rhythm, BNP \> 300 pg/mL; under atrial fibrillation, BNP \> 500 pg/mL; BNP not applicable if the patient is using ARNI);
- Able to perform 6-minute walk test (6MWT), with a distance between 100 meters and 450 meters
You may not qualify if:
- Currently in an acute decompensation of chronic heart failure (hospitalization within 2 weeks prior to enrollment), refractory end-stage heart failure, or on the waiting list for heart transplantation (including LVAD indication);
- BMI \> 40 kg/m² or \< 18.5 kg/m²;
- Systolic blood pressure \<90 or ≥160 mmHg
- Moderate or severe aortic or mitral stenosis, or planned during the trial intervention for severe regurgitation of the aortic, mitral, tricuspid, or pulmonary valves;
- Coronary artery disease requiring revascularization;
- Hypertrophic cardiomyopathy, active myocarditis, cardiac tamponade or large pericardial effusion, congenital heart disease, or other causes of heart failure
- History of stroke, transient ischemic attack (TIA), deep vein thrombosis (DVT), or pulmonary emboli within the past 3 months
- Severe chronic lung disease requiring oxygen therapy or long-term corticosteroids;
- Surgery involving atrial septal puncture within 3 months before enrollment (e.g., mitral repair, atrial fibrillation ablation, LAA closure);
- Significant RV dysfunction - TAPSE \<12mm or RVFAC ≤25%
- eGFR \<25 ml/min/1.73 m\^2
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (15)
Fuzhou University Affiliated Provincial Hospital
Fuzhou, Fujian, China
The First Hospital of Lanzhou University
Lanzhou, Gansu, China
Guangdong Provincial People's Hospital
Guangzhou, Guangdong, China
Guizhou Provincial People's Hospital
Guiyang, Guizhou, China
Fuwai Central China Cardiovascular Hospital
Zhengzhou, Henan, China
The Second Xiangya Hospital of Central South University
Changsha, Hunan, China
Xiangya Hospital of Central South University
Changsha, Hunan, China
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China
Shanghai Chest Hospital
Shanghai, Shanghai Municipality, China
Xijing Hospital
Xi’an, Shanxi, China
West China Hospital
Chengdu, Sichuan, China
The Second Affiliated Hospital Zhejiang University School of Medcine
Hangzhou, Zhejiang, China
The First Affiliated Hospital of Ningbo University
Ningbo, Zhejiang, China
The First AFfiliated Hospital of MWU
Wenzhou, Zhejiang, China
Sichuan Provincial People's Hospital
Chengdu, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 29, 2026
First Posted
February 11, 2026
Study Start
March 16, 2026
Primary Completion (Estimated)
June 1, 2028
Study Completion (Estimated)
June 1, 2028
Last Updated
May 8, 2026
Record last verified: 2026-04