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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06047561
Other study ID # AC22131
Secondary ID RG/F/22/110093
Status Recruiting
Phase
First received
Last updated
Start date May 22, 2023
Est. completion date May 22, 2028

Study information

Verified date September 2023
Source University of Edinburgh
Contact Neil Craig
Phone 07383558066
Email neil.craig@ed.ac.uk
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The goal of this observational study is to understand the processes of what causes and accelerates the disease progress in aortic stenosis and following aortic valve replacement. Participants will undergo transthoracic echocardiography every 6 months, with annual visits for state-of-the-art scanning techniques including positron-emission tomography combined with computed tomography or magnetic resonance imaging with radiotracers designed to look at disease processes including fibrosis, calcification, inflammation and thrombosis activity.


Description:

This will be an observational cohort study using existing and prospectively recruited cohorts for both cross-sectional and longitudinal comparison across the spectrum of aortic stenosis severity. For existing cohorts of patients who have previously undergone research assessments, we will invite them for repeated assessments. Participants will be reviewed every 6 months in the Clinical Research Facility (CRF) over a 4-year period. They will undergo clinical assessment, blood sampling, transthoracic echocardiography and advanced imaging annually including CT angiography, magnetic resonance and positron emission tomography (PET).


Recruitment information / eligibility

Status Recruiting
Enrollment 300
Est. completion date May 22, 2028
Est. primary completion date May 22, 2028
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 50 Years and older
Eligibility Inclusion Criteria: - Male or female aged >50 years - Provision of informed consent prior to any study specific procedures - Patients with bioprosthetic aortic valve replacements, including both surgically and transcatheter implanted valves - Patients with severe aortic stenosis (peak velocity >4.0 m/s; previously recruited patients) - Patients with moderate aortic stenosis (peak velocity 3.0-4.0 m/s; new prospectively recruited patients) - Patients with mild aortic stenosis (peak velocity 2.5-2.9 m/s; new prospectively recruited patients) - Patients with aortic sclerosis (tri-leaflet thickened aortic valve with no obstruction of ventricular outflow) - Age and sex-matched healthy volunteers Exclusion Criteria: - Inability or unwilling to give informed consent. - Those with an allergy to iodinated contrast - Patients with impaired renal function (eGFR of <30 mL/min/1.73m2) - Women who are pregnant or breastfeeding. - Patients with known Rheumatic Heart Disease - Patients with known Ochronosis - Patients with known Familial Homozygous Hypercholesterolaemia

Study Design


Intervention

Radiation:
PET-CT
PET combined with CT or MRI

Locations

Country Name City State
United Kingdom University of Edinburgh Edinburgh

Sponsors (1)

Lead Sponsor Collaborator
University of Edinburgh

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Haemodynamic aortic valve disease progression. Rate of change of maximal aortic valve jet velocity (AV Vmax) 4 years
Secondary Inflammatory, thrombotic, fibrotic and calcific aortic valve disease progression. Rate of change of tissue-to-background ratio (TBRmax) of FDG, GP1, FAPI and NaF PET. 4 years
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