Pluvicto (lutetium Lu 177 vipivotide tetraxetan, also known as ¹⁷⁷Lu-PSMA-617) is an FDA-approved targeted radioligand therapy. It combines two parts:
- A targeting molecule — a small ligand that binds to prostate-specific membrane antigen (PSMA), a protein present on the surface of most prostate cancer cells.
- A radioactive payload — lutetium-177, a beta-emitter that delivers therapeutic radiation over a very short distance (about 2 mm).
When Pluvicto is infused, the ligand seeks out PSMA-expressing prostate cancer cells anywhere in the body, attaches to them, and releases its radiation directly inside or right next to the tumor — sparing most normal tissue.
FDA-Approved Indication
Pluvicto is approved for adult men with PSMA-positive metastatic castration-resistant prostate cancer (mCRPC) who have already been treated with both an androgen receptor pathway inhibitor (e.g., abiraterone or enzalutamide) and taxane-based chemotherapy (such as docetaxel).