Biomarkers for the Assessment of Congestion in Patients With Ambulatory and Hospitalised Heart Failure

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

140 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-06-30

Study Completion Date

2025-12-31

Brief Summary

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The goal of this study is to test the accuracy of new blood and urine tests in people with heart failure. The main question it aims to answer is:

\- Do new blood and urine tests correlate with fluid status? This will be determined by comparison to routine and gold-standard tests in a range of patients with heart failure.

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Detailed Description

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Heart failure (HF) is a common condition that is associated with recurrent and prolonged hospital admissions (hospitalisation). HF hospitalisation is associated with poor outcomes and therefore the identification of patients at risk of HF hospitalisation, and avoidance of these events, is of great importance.

HF hospitalisations are frequently preceded by a period of increasing congestion (pressure elevation within heart chambers and excess body fluid). The identification of congestion can be difficult. Current tests have limitations and signs of congestion such as lung crackles or leg swelling that can be recognised by health care professionals are often seen at a late stage before an intervention can be made to prevent hospitalisation. Reliably identifying congestion prior to the development of these signs would facilitate earlier intervention (treatment to de-congest) and may prevent hospitalisations. Patients who do require hospital admission are often discharged with residual congestion which is associated with readmission and increased risk of death. Tests that correlate closely with the degree of congestion and track with decongestion could guide therapy and help with decision-making about suitability for hospital discharge.

The investigators propose to recruit 140 patients. Patients will be identified during hospitalisation with HF or prior to implantation of a cardiac resynchronisation therapy (CRT) device. Each patient will have a history, physical examination, electrocardiogram (ECG), echocardiogram (cardiac ultrasound) and lung ultrasound performed. Some patients will have a procedure to record pressure measurements within the heart (right heart catheterisation) if clinically indicated as routine care. Blood and urine tests will also be taken.

The aim of this study is to evaluate the accuracy of novel blood and urine tests at measuring congestion compared with standard assessments. This may help in the discovery and development of new and improved tests for assessing congestion.

Conditions

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Heart Failure Congestion

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Cohort A

Patients with heart failure (HF) undergoing clinically indicated right heart catheterisation (RHC) +/- clinically- indicated repeat RHC in the Scottish Advanced Heart Failure Service (SNAHFS)

Urine and circulating blood biomarkers

Intervention Type DIAGNOSTIC_TEST

Urine and circulating blood biomarkers in all cohorts

Cohort B

Patients with HF undergoing RHC during implantation of a cardiac resynchronisation therapy (CRT) device.

Urine and circulating blood biomarkers

Intervention Type DIAGNOSTIC_TEST

Urine and circulating blood biomarkers in all cohorts

Cohort C

Patients hospitalised with HF receiving intravenous (IV) diuretic therapy.

Urine and circulating blood biomarkers

Intervention Type DIAGNOSTIC_TEST

Urine and circulating blood biomarkers in all cohorts

Interventions

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Urine and circulating blood biomarkers

Urine and circulating blood biomarkers in all cohorts

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Written informed consent.
* Male or female ≥18 years of age.
* Cohort A

* Meet European Society of Cardiology (ESC) criteria for diagnosis of HF1, including HF with reduced (HFrEF), mildly reduced (HFmrEF) and preserved ejection fractions (HFpEF).
* Hospitalised for the management of HF or outpatients.
* Undergoing clinically-indicated RHC or repeat clinically-indicated RHC.
* Cohort B

* Meet ESC criteria for diagnosis of HFrEF.
* Undergoing implantation of CRT device and a simultaneous clinically-indicated RHC.
* Cohort C

* Meet ESC criteria for diagnosis of HF, including HFrEF, HFmrEF, HFpEF.
* Requiring treatment with IV diuretics.

Exclusion Criteria

* Unwilling to consent.
* Unable to consent to inclusion in study due to cognitive impairment.
* Previously enrolled in the BIO-CONGEST study.
* Current participation in a blinded drug interventional trial (or treatment within four weeks).
* Pregnancy or breast-feeding (cohorts A + B where applicable).
* Currently uncontrolled cardiac arrhythmia.
* Severe aortic valvular disease.
* Increased body mass index where satisfactory echocardiographic images are not possible.
* Conditions that may confound congestion assessments in the opinion of the investigator, including: severe obstructive lung disease, severe fibrotic lung disease, severe liver disease, relevant active malignancy including lung cancer, pelvic cancer with caval compression, superior vena cava (SVC) obstruction syndrome, active viral or bacterial bronchopneumonia - chest x-ray (CXR) within four weeks showing consolidation, pulmonary contusion, pneumothorax, pneumonectomy, lobectomy, pulmonary embolism within the previous three months, indwelling intercostal chest drain, left ventricular assist device (LVAD), COVID-19 infection, type-1 acute myocardial infarction.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No