Use of [18F] Fluoroethyl-L-tyrosine PET/MRI for Identifying Small Functional Pituitary Adenomas (NCT07456878) | Clinical Trial Compass
RecruitingPhase 1
Use of [18F] Fluoroethyl-L-tyrosine PET/MRI for Identifying Small Functional Pituitary Adenomas
United States5 participantsStarted 2026-01-08
Plain-language summary
The purpose of this research is to evaluate the diagnostic role and clinical efficacy of investigational FET-PET/MRI in detecting MRI-occult primary or residual/recurrent functional pituitary adenomas (PAs) and its influence on clinical and surgical decisions.
Who can participate
Age range18 Years – 75 Years
SexALL
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Inclusion Criteria:
* Patients 18 to 75 years of age with biochemically proven CD, Acromegaly, or tumor hyperprolactinemia as per current Endocrinology guidelines.
* Clinical DCE-MRI protocol that is negative or equivocal for identifiable tumor.
* Patient willing to have surgery if lesion found, or already scheduled for surgery and lesion identification would be helpful.
* Able to provide informed consent and be capable of completing the imaging protocols.
* Female subjects of childbearing potential (women of childbearing potential \[WOCBP\]) must have a negative urine pregnancy test ≤48 hours prior to the 18F-FET injection.
Exclusion Criteria:
* Patients with contraindications to MRI or PET scans.
* Patients with known allergies to contrast agents or other imaging-related materials.
* Patients with severe medical conditions that preclude participation in the study (e.g. inability to lie supine for 30-60 minutes).
* Patients with successful MRI localization of the adenoma.