Radioligand therapy

About this approach

Radioligand therapy combines a radioactive component with a targeting molecule that binds to a feature of cancer cells. It delivers radiation through the bloodstream rather than from an external beam. An established example is PSMA-directed lutetium treatment for selected advanced prostate cancers. A matching scan and clinical assessment help determine eligibility. This is a treatment family, not one interchangeable medicine. PRRT is a related receptor-targeted approach for neuroendocrine tumors and has its own guide and eligibility requirements.

Where it fits: Targeted systemic radiation with product-specific approved uses

Where this treatment is used

The evidence for radioligand treatment is specific to the molecule, radioactive component, cancer and treatment setting. For prostate cancer, lutetium Lu 177 vipivotide tetraxetan targets PSMA-positive disease. FDA expanded its indication in March 2025 to include certain patients with metastatic castration-resistant prostate cancer previously treated with an androgen-receptor pathway inhibitor who are appropriate to delay taxane chemotherapy. A positive scan alone does not settle eligibility; previous treatment, symptoms, organ function and available alternatives also matter. A specialist consultation should identify the exact medicine, anticipated benefit and monitoring plan, and explain how response affects the next stage of treatment.

Procedure and practical considerations

Risks vary by product and can include fatigue, nausea, dry mouth, reduced blood counts and kidney injury. Radiation can affect normal tissues even when the medicine has a molecular target. Pregnancy exposure and fertility require specific advice, and temporary precautions may be needed around other people and bodily fluids. Longer-term marrow effects and cumulative radiation exposure should be discussed when comparing treatment sequences.

Clinics reporting this approach

These clinic profiles mention this approach in their published materials. Open a profile to compare locations, services, practical details, and ways to get started.