Coronary Artery Disease Clinical Trial
Official title:
Ammonia N-13 Myocardial Blood Flow Absolute Quantification by Positron Emission Tomography in Patients With Known or Suspected Coronary Artery Disease (Ammonia MAP)
NCT number | NCT04343209 |
Other study ID # | Pro00042364 |
Secondary ID | |
Status | Recruiting |
Phase | |
First received | |
Last updated | |
Start date | September 14, 2020 |
Est. completion date | August 2024 |
This study is being conducted to provide access to and collect test data for an established nuclear medicine diagnostic imaging test called Positron Emission Tomography (PET), using a specific radioactive drug called Ammonia N-13 (Ammonia), referred to simply as an Ammonia PET scan, which is used to visualize the blood flow through the blood vessels and into the heart muscle in order to identify areas of restricted blood flow within the heart. The scanner used in this study may be a stand-alone PET scanner or a PET/CT scanner, which combines the PET scanner and a Computed Tomography (CT) scanner into a single device. Unless otherwise stated in this consent form, the term PET will be used to refer to both stand-alone PET and PET/CT scanners. While physicians have used the Ammonia PET test for many years to visualize (image) the blood flow into the heart muscle (perfusion), it is now possible to also measure the flow of blood into the heart muscle. Research studies have demonstrated clinical value in reviewing the measured blood flow values in addition to reviewing the perfusion images of blood flow into the heart muscle. Therefore, this study will establish a database of a large number of Ammonia PET measured blood flow values to serve as a future reference.
Status | Recruiting |
Enrollment | 2500 |
Est. completion date | August 2024 |
Est. primary completion date | August 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: Adults =18 able to give informed consent. Clinical indication for PET-MPI as determined by the subject's treating physician Exclusion Criteria: Any clinical contraindication for pharmacologic stress testing per ASNC/SNMMI/ACC myocardial perfusion imaging guidelines when stress perfusion imaging is required clinically. Inability or unwilling to give informed consent Pregnant subjects |
Country | Name | City | State |
---|---|---|---|
United States | Molecular Imaging Technologies | El Paso | Texas |
United States | Adler Institute for Advanced Imaging | Jenkintown | Pennsylvania |
United States | Doral Imaging Institute, LLC dba CIRA | Miami | Florida |
United States | Doral Imaging Institute, LLC DBA CIRA Miami Beach | Miami Beach | Florida |
United States | UPMC | Pittsburgh | Pennsylvania |
Lead Sponsor | Collaborator |
---|---|
Ionetix Corporation |
United States,
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Bergmann SR, Herrero P, Markham J, Weinheimer CJ, Walsh MN. Noninvasive quantitation of myocardial blood flow in human subjects with oxygen-15-labeled water and positron emission tomography. J Am Coll Cardiol. 1989 Sep;14(3):639-52. doi: 10.1016/0735-1097 — View Citation
Gewirtz H, Fischman AJ, Abraham S, Gilson M, Strauss HW, Alpert NM. Positron emission tomographic measurements of absolute regional myocardial blood flow permits identification of nonviable myocardium in patients with chronic myocardial infarction. J Am C — View Citation
Kern MJ, Bach RG, Mechem CJ, Caracciolo EA, Aguirre FV, Miller LW, Donohue TJ. Variations in normal coronary vasodilatory reserve stratified by artery, gender, heart transplantation and coronary artery disease. J Am Coll Cardiol. 1996 Nov 1;28(5):1154-60. — View Citation
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Renaud JM, Yip K, Guimond J, Trottier M, Pibarot P, Turcotte E, Maguire C, Lalonde L, Gulenchyn K, Farncombe T, Wisenberg G, Moody J, Lee B, Port SC, Turkington TG, Beanlands RS, deKemp RA. Characterization of 3-Dimensional PET Systems for Accurate Quanti — View Citation
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Ziadi MC, Dekemp RA, Williams KA, Guo A, Chow BJ, Renaud JM, Ruddy TD, Sarveswaran N, Tee RE, Beanlands RS. Impaired myocardial flow reserve on rubidium-82 positron emission tomography imaging predicts adverse outcomes in patients assessed for myocardial — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Establish the N-13 measured MBF (ml/g/min) value range | Non-invasive measurements of myocardial blood flow (MBF) in milliliter/minute/gram using PET/CT or PET scanner will be compared to invasive cardiac angiography values (current gold standard). MBF values are obtained using image-derived time activity curves from the left ventricular blood and myocardial tissue regions. These values represent radiotracer exchange between the blood and the tissue over time. The rate of radiotracer uptake into the myocardial tissue provides an estimate of MBF. Processing software will then use the time-activity curves to calculate MBF at rest and at stress. | an estimated average of 2 hours |
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