On Sept. 14, 2026, Telix today announces that the U.S. Food and Drug Administration (FDA) has approved its New Drug Application (NDA) for Pixclara® (floretyrosine F 18 or ¹⁸F-FET), an amino acid positron emission tomography (PET) drug for imaging gliomas (brain cancer).

Pixclara is a radioactive diagnostic drug indicated for use with positron emission tomography (PET) to differentiate recurrent or progressive glioma from treatment-related change, in conjunction with other diagnostic evaluations, in adults and pediatric patients 1 month of age and older.

PET imaging with floretyrosine F 18 (FET-PET) is recommended in international clinical practice guidelines for the imaging of gliomas, including NCCN Guidelines®, but until now there has not been an FDA-approved product available in the U.S.

Gliomas are the most common form of central nervous system (CNS) cancer, accounting for approximately 30% of all brain and CNS tumors and 80% of all malignant brain tumors. In the U.S., approximately 24,000 new glioma cases are diagnosed each year[3], representing a significant unmet addressable need.

Pixclara® is an intravenous positron emission tomography (PET) imaging drug for the differentiation of recurrent or progressive glioma from treatment-related change, in conjunction with other diagnostic evaluations, in adults and pediatric patients 1 month of age and older. It comprises a small molecule targeting compound labeled with a diagnostic radioisotope, fluorine-18. After administration into the bloodstream, Pixclara targets membrane transport proteins known as L-type amino acid transporters 1 and 2 (LAT1 and LAT2). Once bound, energy emissions from the radioisotope can be detected by a PET scanner. Pixclara (TLX101-Px) is also the subject of a Phase 3 registrational study for potential indication expansion for the diagnosis of brain metastases