Clinical Trials Network

The SNMMI Clinical Trials Network provides tools and resources to promote faster, more cost-effective drug development and increase the availability and performance of molecular imaging radiopharmaceuticals for use in the clinic. Increased standardization in trials leads to better data that then results in expanded utilization of radiopharmaceuticals.

The Clinical Trials Network (CTN) was formed in 2008 by SNMMI to help facilitate the effective use of molecular imaging radiopharmaceuticals in clinical trials. Benefits to the drug development industry include access to a database of qualified imaging sites and radiopharmaceutical manufacturers, a robust scanner validation program, access to standardized imaging protocols and clinical research education and training for site personnel. Our Mission is to facilitate the effective use of MI in clinical trials through standardization, coordination, and education for drug development and regulatory approval. A successful scanner validation will ensure that your study patients as well as your clinical patients are being scanned on a quantitatively and quantitatively accurate PET/CT. Click here for more information about our scanner validation program. We also maintain a comprehensive database that stores and manages information on imaging sites, production sites and those sites that have both imaging and production capabilities. To date, we have over 500 sites registered in the CTN database. To access or add your site to the CTN database, click here. 

DaRT Map

DaRT Color code


Live_meeting_iconMeetings and webinars provide the ideal venue to promote and support standardization in imaging, especially when part of a research trial. The Clinical Trials Network sponsors two major sessions per year during the SNMMI Mid-Winter and Annual Meetings. The CTN Education Committee and other consultants plan the programs keeping in mind the audience and the ever-evolving landscape of nuclear medicine, molecular imaging, and targeted radionuclide therapy. Clinical research basics remain fairly constant but are often not part of the education and training that many molecular imaging personnel receive. To that end, the CTN has developed an outstanding curriculum covering a wide-range of research topics.


CTN 2019 Webinar Series


The CTN serves a unique and critical function in SNMMI. By working closely with sponsors, associations and agencies, CTN members help to advance key initiatives for standardization in PET/CT clinical imaging. The purpose of the internship program is to identify and train future leaders of SNMMI in the structure, governance and operations of the organization; to prepare individuals for progressive levels of responsibility; and to ensure effective leadership that advances the mission and goals of the organization.

Interns serve a two-year term that begins and ends at the SNMMI Annual Meetings. A mentor is appointed by the CTN Leadership for the intern, to work with the intern and supervise special projects and activities. During the two years, the intern is expected to attend the CTN Leadership and Committee meetings at the SNMMI Mid-Winter and Annual Meetings, and participate in conference calls. 

If you are interested is applying for the CTN intern position, please email us at    


 Past Interns  

Colin Raymond Young, LCDR, MC, USN (2017-2019)

Lieutenant Commander, Colin Young, LCDR, MC, USN went to the United States Naval Academy in Annapolis, MD where he earned a Bachelor of Science in Systems Engineering.  He completed military SCUBA training in Panama City, FL and nuclear propulsion training in Charleston, SC and Ballston Spa, NY and went to submarine school in Groton, CT before arriving at the USS Oklahoma City (SSN723) stationed in Norfolk, VA in February 2002.  While onboard Oklahoma City, he held the positions of electrical assistant, intelligence officer, and assistant weapons officer and made two deployments, one through the Mediterranean to the Persian Gulf, and the other under the polar ice cap to the Western Pacific and back through the Panama Canal.  He started medical school at the Uniformed Services University of the Health Sciences, graduating in 2010.  After completing Internal Medicine intern year at Walter Reed in 2011, he was a Navy Undersea Medical Officer getting to care for submariners and divers and conducted research at Naval Submarine Medical Research Laboratory in Groton, CT.  He returned to Walter Reed for Radiology residency training in 2014 and anticipate graduating in 2018, at which point he will start a Nuclear Medicine/Radiology fellowship at Yale New Haven Medical Center. 

Courtney LawhnHeath, MD (2017-2019)

Dr. Courtney Lawhn Heath, MD, graduated from the University of Chicago Pritzker School of Medicine and is pursuing a combined diagnostic radiology residency and nuclear medicine fellowship at the University of California San Francisco. Dr. Lawhn Heath’s professional interests include cross-specialty collaboration, radiology education, hybrid imaging techniques, investigational radiotracers such as 68Ga-PSMA, and bringing new PET tracers and radiopharmaceuticals into the oncology clinic. Prior to pursuing medical training, she was a professional harpist who performed with organizations including the Chicago Symphony Orchestra.



Robert Flavell, MD, PhD (2015-2017)

Dr. Robert Flavell, MD, PhD is the CTN intern for 2015 - 2017. He completed his residency in radiology at the University of California, San Francisco where he is currently a fellow in nuclear medicine. Dr. Flavell’s research interests include radiochemistry, PET radiopharmaceutical development, and hyperpolarized 13C MRI. He plans to spend his time with the CTN assisting the Gallium Users Group in creating a clinical trial protocol and accompanying documents for the development of 68Ga-PSMA, among other projects. We welcome Dr. Flavell to the CTN!