- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04882488
Correlation of FFR and iFR With Cardiac PET Perfusion in Patients With Severe Aortic Valve Stenosis (TAVI PET)
January 9, 2024 updated by: Heart and Diabetes Center North-Rhine Westfalia
Correlation of FFR and iFR With Cardiac PET Perfusion (at Rest and Under Adenosine) in the Evaluation of Intermediate Coronary Stenoses in Patients With Severe Aortic Valve Stenosis
Aortic valve stenosis (AS) affects 2-7% of persons > 65 years, symptoms include: angina and dyspnea, dizziness and syncope.
Coincidence of coronary artery disease (CAD), also presenting with angina and dyspnea, in patients with AS between 40 - 65% .
Angina in AS caused by significant reduction of coronary flow reserve (CFR).
CFR is the ratio of maximal flow increase in the coronary vessel bed during maximal hyperaemia (medically or exercise induced).
FFR (fractional flow reserve) use in patients with AS potentially invalid due to dysfunctional CFR leading to potential undertreatment of CAD in these patients.CFR disturbance in AS mainly due to myocardial overload causing concentric hypertrophy, increased oxygen consumption and neurohormonal activation leading to increased vascular resistance.
Current studies are investigating the validity of FFR and iFR in AS patients.
Recent data demonstrate very good correlation between FFR and iFR derived values to PET myocardial perfusion imaging values in patients with no evidence of AS.
Our study aims to investigate the diagnostic performance of FFR and iFR in intermediate-grade coronary stenosis in patients with severe aortic valve disease and correlate FFR- and iFR derived values with those extracted from PET-perfusion Imaging.
Study Overview
Status
Recruiting
Conditions
Study Type
Observational
Enrollment (Estimated)
20
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Tanja Rudolph, MD
- Phone Number: +495731971258
- Email: trudolph@hdz-nrw.de
Study Contact Backup
- Name: Astrid Kleemeyer
- Phone Number: +49495731971258
- Email: akleemeyer@hdz-nrw.de
Study Locations
-
-
NRW
-
Bad Oeynhausen, NRW, Germany, 32545
- Recruiting
- Herz- und Diabeteszentrum, NRW
-
Contact:
- Tanja K Rudolph, MD
- Phone Number: 00495731971258
- Email: trudolph@hdz-nrw.de
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
65 years and older (Older Adult)
Accepts Healthy Volunteers
No
Sampling Method
Non-Probability Sample
Study Population
Patients with severe aortic Stenosis eligible for transcatheter aortic Valve Implantation (TAVI) with concurring coronary artery disease.
Description
Inclusion Criteria:
- patients with severe aortic Stenosis eligible for transcatheter aortic stenosis
- left ventricular ejection fraction > 55%
- no intolerance of Adenosin
- no history of bradycardia, atrioventricular Blockade
- intermediate coronary Stenosis with FFR> 0.8
- Age >65
Exclusion Criteria:
- intolerance of Adenosin
- left ventricular ejection fraction < 55%
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Correlation of PET-CT Prior to TAVI and 3 months after TAVI procedure
Time Frame: 3 months
|
Evaluation of FFR-negative intermediary coronary stenoses in Patients with severe Aortic Stenosis Prior and 3 months following TAVI
|
3 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical Evaluation Prior to and following TAVI
Time Frame: 3 months
|
Angina prevalence in patients with intermediate coronary Stenosis Prior to and 3 months following TAVI
|
3 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Tanja Rudolph, MD, Consultant physician
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
June 1, 2021
Primary Completion (Estimated)
December 31, 2023
Study Completion (Estimated)
June 30, 2024
Study Registration Dates
First Submitted
May 6, 2021
First Submitted That Met QC Criteria
May 11, 2021
First Posted (Actual)
May 12, 2021
Study Record Updates
Last Update Posted (Actual)
January 10, 2024
Last Update Submitted That Met QC Criteria
January 9, 2024
Last Verified
September 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Heart Diseases
- Cardiovascular Diseases
- Vascular Diseases
- Arteriosclerosis
- Arterial Occlusive Diseases
- Pathological Conditions, Anatomical
- Aortic Valve Disease
- Heart Valve Diseases
- Ventricular Outflow Obstruction
- Coronary Artery Disease
- Myocardial Ischemia
- Coronary Disease
- Aortic Valve Stenosis
- Constriction, Pathologic
Other Study ID Numbers
- HDZ-KA_020_TR
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Coronary Artery Disease
-
Elixir Medical CorporationIstituto Clinico HumanitasActive, not recruitingCoronary Artery Disease | Chronic Total Occlusion of Coronary Artery | Multi Vessel Coronary Artery Disease | Bifurcation of Coronary Artery | Long Lesions Coronary Artery DiseaseItaly
-
Fundación EPICActive, not recruitingCoronary Artery Disease | Left Main Coronary Artery Disease | Left Main Coronary Artery Stenosis | Restenosis, CoronarySpain
-
Peking Union Medical College HospitalNot yet recruitingCoronary Artery Disease | Inflammation | Coronary Artery Disease Progression | Coronary Artery Stenosis | Coronary Artery Restenosis | Inflammatory Disease | Inflammation VascularChina
-
Peking Union Medical College HospitalRecruitingCoronary Artery Disease | Inflammation | Coronary Artery Disease Progression | Coronary Artery Stenosis | Coronary Artery Restenosis | Inflammatory Disease | Inflammation VascularChina
-
IGLESIAS Juan FernandoUniversity of BernNot yet recruiting
-
National Institutes of Health Clinical Center (CC)National Heart, Lung, and Blood Institute (NHLBI)CompletedCoronary Arteriosclerosis | Coronary Artery Disease (CAD) | Obstructive Coronary Artery DiseaseUnited States
-
Barts & The London NHS TrustImperial College London; Brunel UniversityNot yet recruitingCORONARY ARTERY DISEASE
-
Abbott Medical DevicesCompletedCoronary Artery Disease | Coronary Disease | Coronary Occlusion | Chronic Total Occlusion of Coronary Artery | Coronary Restenosis | Coronary Artery Stenosis | Coronary Artery RestenosisBelgium
-
Fundación EPICRecruitingCoronary Artery Disease | Coronary Disease | Coronary Occlusion | Left Main Coronary Artery Disease | Coronary Artery StenosisSpain
-
China National Center for Cardiovascular DiseasesRecruitingLeft Main Coronary Artery DiseaseChina