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Can biomarkers predict which elderly heart failure patients will return to hospital?
NCT ID NCT05992558
First seen Sep 21, 2026 · Last updated Sep 21, 2026
Summary
Researchers are building risk models to predict death or rehospitalization within a year for people aged 80 and older who have heart failure with preserved ejection fraction and were hospitalized for acute heart failure. The study collects clinical and biological data during hospitalization and at 30 and 90 days after discharge. The goal is to see if new biomarkers, added to routine measures, improve predictions for this vulnerable group.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could give doctors better tools to predict which very elderly heart failure patients face the highest risk of death or rehospitalization, helping guide care decisions.
- What could go wrong
- The study is observational and small, so the models may not work well in other patient groups. Prediction tools do not directly improve outcomes unless doctors act on them effectively.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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175 people
The number who actually took part.
- Started
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Mar 2023
- Finished
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Feb 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Very elderly patients (≥80 years old) with HFpEF consecutively admitted for acute HF at Hospital Universitario Ramón y Cajal and followed up at Unit of Heart Failure (UICA) of the Internal Medicine Dept.
- Ages
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80 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. age ≥80 years; 2. diagnosis of HFpEF, requiring the 4 following conditions: b1) typical symptoms and/or signs of HF; b2) left ventricular ejection fraction (LVEF) ≥50%; b3) elevated levels of natriuretic peptides (NTproBNP ≥300 pg/mL or BNP ≥100 pg/mL in sinus rhythm; NT-proBNP ≥900 pg/mL or BNP ≥300 pg/mL in atrial fibrillation); and b4) at least one additional criterion: b4.1) relevant structural heart disease (left ventricular hypertrophy and/or left atrial enlargement), or 4.2) diastolic dysfunction; 3. hospitalization with a primary diagnosis of acute HF; and 4. giving informed consent. Exclusion Criteria: 1. any clinical condition, such as HF secondary to congenital heart disease and severe valve disease, severe renal (requiring dialysis) and liver disease, active malignant diseases, autoimmune diseases, other diseases resulting in \<1-year life expectancy or any other condition that, according to investigators' criteria, could significantly interfere with the study objectives; 2. any clinical or social condition that prevents clinical follow-up.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Hospital Universitario Ramón y Cajal
Madrid, Madrid, 28034, Spain
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Other studies related to the condition(s) this trial covers.
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