Telix Pharmaceuticals Limited (ASX: TLX, Telix, the Company) today announces that the first patient has been dosed in the Company's Phase III ProstACT GLOBAL study of its investigational prostate-specific membrane antigen (PSMA) targeting radio-antibody drug conjugate (rADC) therapy, TLX591 (177Lu-rosopatamab tetraxetan). TLX591 is a rADC composed of a high-specificity PSMA-targeting antibody, chelator linker, and cytotoxic lutetium (177Lu) payload. The PSMA-targeted monoclonal antibody (mAb) ap