Ammonia N-13 Myocardial Blood Flow Absolute Quantification by PET in Patients With Known or Suspected CAD (Ammonia MAP)

  • days left to enroll
  • participants needed
  • sponsor
    Ionetix Corporation
Updated on 27 May 2022
ct scan
perfusion imaging
positron emission tomography
radioactive drug
myocardial perfusion imaging


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.


This is a prospective, multicenter database that will be populated by sites utilizing N-13 Ammonia and sponsored by Ionetix. Each site with access to N-13 produced under an investigational new drug (IND) application will be eligible to participate. Once the site is activated, the site will enroll patients into the database that are scheduled for clinically indicated PET-MPI with N-13 (as determined by their treating physicians). PET-MPI perfusion, MBF, percent ischemia, pharmacologic stress agent, and gated left ventricular ejection fraction/function values will be collected when available, in an anonymous fashion and uploaded into the database. All patient health identifiers (PHI) will be removed prior to upload. No procedures additional to those clinically indicated will be performed for the purposes of this study.

Condition Myocardial Ischemia, Coronary Disease, Coronary Artery Disease, Heart Diseases, Cardiovascular Diseases, Arteriosclerosis, Arterial Occlusive Diseases, Vascular Diseases
Treatment Myocardial Perfusion Imaging Study, AMMONIA N-13 37.5 mCi in 1 mL INTRAVENOUS INJECTION [Ammonia N 13]
Clinical Study IdentifierNCT04343209
SponsorIonetix Corporation
Last Modified on27 May 2022


Yes No Not Sure

Inclusion Criteria

Adults ≥18 able to give informed consent
Clinical indication for PET-MPI as determined by the subject's treating

Exclusion Criteria

Any clinical contraindication for pharmacologic stress testing per ASNC/SNMMI/ACC
myocardial perfusion imaging guidelines when stress perfusion imaging is required
Inability or unwilling to give informed consent
Pregnant subjects
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer  to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact


Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note