18-F Sodium Fluoride (18F-NaF) PET for the Assessment of Bioprosthetic Aortic Valve Durability and Outcomes
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|ClinicalTrials.gov Identifier: NCT03095313|
Recruitment Status : Recruiting
First Posted : March 29, 2017
Last Update Posted : July 26, 2018
This is a pilot study in which we will aim to demonstrate successful execution of the imaging protocol and to make observations regarding the calcification activity as measured by 18F-NaF PET/CT and any correlation to 1) valve age and valve type, and 2) subsequent degeneration of aortic valve bioprostheses based upon clinical, echocardiographic and CT parameters.
Additionally, the data will serve as preliminary data to plan a larger study to investigate study objectives.
|Condition or disease||Intervention/treatment||Phase|
|Aortic Stenosis||Other: 18F-NaF||Phase 2|
This five-year pilot study will aim to demonstrate successful execution of the imaging protocol and to make observations regarding the calcification activity as measured by 18F-NaF PET/CT and any correlation to 1) valve age and valve type, and 2) subsequent degeneration of aortic valve bioprostheses based upon clinical, echocardiographic and CT parameters. Techniques that can identify specific increases in calcification activity are therefore likely to provide important insights into predicting the longevity of TAVR valves and guidance towards subsequent interventions.
Twenty patients whom have undergone either TAVR or surgical bioprosthetic aortic valve replacement will be invited to participate in an 18F-NaF PET scan (baseline) and CT scan imaging (baseline and Year 2). Baseline, Year 1 and 2 will also include clinical assessment, labs and echocardiograms. Telephone contact at Years 3, 4, and 5 will provide follow up for major cardiovascular adverse events.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||20 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Primary Purpose:||Device Feasibility|
|Official Title:||18-F Sodium Fluoride (18F-NaF) Positron Emission Tomography (PET) for the Assessment of Bioprosthetic Aortic Valve Durability and Outcomes|
|Actual Study Start Date :||May 23, 2017|
|Estimated Primary Completion Date :||December 30, 2018|
|Estimated Study Completion Date :||December 31, 2023|
Experimental: 18F-NaF PET and CT scanning
18F-NaF PET-CT scan (at Baseline visit only) Contrast-enhanced CT Scan (at Baseline and Year 2 only) with possible beta-blocker and nitroglycerin, if medically safe.
At baseline a target dose of 125 MBq 18F-NaF will be administered intravenously to all subjects who will then undergo dual cardiac and respiratory-gated PET-CT imaging of the heart and aortic valve. 125ml of iodine-based contrast agent (iohexol [Omnipaque™]) will be given for the CT. Nitroglycerin will be given to increase the size of the coronary arteries and a possible dose of metoprolol may be given to control target heart rate.
Repeat contrast-enhanced CT of the heart and aortic valve will be conducted at Year 2 to investigate to investigate whether 18F-NaF activity predicts progression of calcification in prosthetic valves.
- Presence of calcification activity within the replacement valve by 18F-NaF PET-CT [ Time Frame: Baseline ]Presence of calcification activity will be determined by presence of uptake of the radiotracer, 18F-NaF, on 18F-NaF PET-CT images.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03095313
|Contact: Daniel S. Berman, MD||310 firstname.lastname@example.org|
|Contact: Rhona Littman||310 email@example.com|
|United States, California|
|Cedars-Sinai Medical Center||Recruiting|
|Los Angeles, California, United States, 90048|
|Contact: Daniel S Berman, MD 310-423-4223 firstname.lastname@example.org|
|Principal Investigator: Daniel S Berman, MD|
|Principal Investigator:||Daniel S. Berman, MD||Cedars-Sinai Medical Center|