NCT06169540 · Massachusetts General Hospital
Salivary Extracellular Vesicle Associated lncRNAs in Heart Failure (SEAL-HF)
(SEAL-HF)
What this study is about
The purpose of this study is to determine the relationship between the levels of Ribonucleic acid (RNA) circulating molecules, including ones in extracellular vesicles from different organs in the blood and in the saliva of patients with Acute Decompensated Heart Failure (ADHF) and Chronic Heart Failure (CHF) to see if a new, non-invasive diagnostic test can be developed for heart failure exacerbation.
View original scientific description
The purpose of this study is to determine the relationship between the levels of Ribonucleic acid (RNA) circulating molecules, including ones in extracellular vesicles from different organs in the blood and in the saliva of patients with Acute Decompensated Heart Failure (ADHF) and Chronic Heart Failure (CHF) to see if a new, non-invasive diagnostic test can be developed for heart failure exacerbation.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- At least 18 years of age
- Stable disease defined as CHF of any type, New York Heart Association (NYHA) functional class II/III/IV, N-terminal pro-B-type natriuretic peptide (NT-proBNP) ≥600 pg/ml if Left Ventricular Ejection Fraction (LVEF) ≤30%; ≥1000 pg/mL if LVEF 31-35%; ≥2500 pg/mL if EF \>35% Inclusion Criteria ADHF:
- At least 18 years of age
- Clinical signs and/or symptoms (including exertional or rest dyspnea, orthopnea or Paroxysmal Nocturnal Dyspnea (PND)) and N-terminal pro-BNP level \> 1000 pg/mL or BNP \> 400 pg/ml, OR Clinical evidence of congestion: X-ray evidence of pulmonary edema or pleural effusions, elevated Jugular Venous Pulse (JVP), lower extremity edema, or rales on pulmonary examination, right heart catheterization evidence of elevated filling pressures (Right Atrium (RA) pressure \> 10 mmHg; Pulmonary Capillary Wedge Pressure (PCWP) \> 18 mmHg) and clinical response to Intravenous (IV) diuretic therapy (as judged by a physician) Inclusion Criteria control:
- At least 18 years of age
- Will/have undergone an EP procedure in the EP lab
Exclusion criteria
- Active pregnancy or lactation
- Cardiac amyloidosis
- Active malignancies
Where
- Boston, Massachusetts
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Nov 13, 2025 · Source of record for eligibility and locations