177Lu-PSMA-617 (Pluvicto)
Overview
177Lu-PSMA-617 is a radioligand therapeutic consisting of a small peptide-based ligand targeting prostate-specific membrane antigen (PSMA) conjugated to the beta-emitting radioisotope lutetium-177. The peptide component binds selectively to PSMA, a transmembrane protein highly expressed on prostate cancer cells, enabling targeted delivery of cytotoxic radiation to tumor sites while sparing normal tissues.
Mechanism of Action
It is indicated for treatment of metastatic castration-resistant prostate cancer in patients previously treated with androgen receptor pathway inhibition and taxane-based chemotherapy. The targeting moiety is derived from a urea-based peptidomimetic scaffold optimized for PSMA affinity.
Research Summary & Key Findings
177Lu-PSMA-617 received FDA approval in March 2022 based on the VISION trial (NEJM 2021), a randomized phase 3 study demonstrating significant improvements in overall survival (median 15.3 vs 11.3 months) and radiographic progression-free survival compared to standard of care alone. The trial enrolled 831 patients with PSMA-positive metastatic castration-resistant prostate cancer. Treatment-related adverse events included myelosuppression and dry mouth, with the majority of events being grade 1 or 2.
Clinical Status
177Lu-PSMA-617 (Pluvicto) has received FDA approval and is available for clinical use under appropriate medical supervision. Consult a qualified healthcare provider for prescribing information.
Administration Routes
References
Primary literature
- PubMed — "177Lu-PSMA-617"
Peer-reviewed literature indexed by the National Library of Medicine.
- ClinicalTrials.gov — "177Lu-PSMA-617"
Registered interventional and observational studies, including status and phase.
- PubChem — "177Lu-PSMA-617"
Chemical structure, molecular properties, and bioactivity data.
Study-level citations for this compound are being verified against the primary sources before publication. The database queries above return the current indexed literature in the meantime.
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