Peptide Arcana
Lutetium-177 PSMA: Homes in on PSMA, a protein on prostate cancer cells, and irradiates them with lutetium-177, whose rays travel only about 2 mm.

Lutetium-177 PSMA

Listed as Lutetium Lu-177 vipivotide tetraxetan

FDA approvedSexual and reproductive

How it works

Homes in on PSMA, a protein on prostate cancer cells, and irradiates them with lutetium-177, whose rays travel only about 2 mm.

What it's made of

It is not a peptide: it is a small molecule that mimics two amino acids (glutamate and lysine joined by urea) and sticks to PSMA, plus a linker and a chemical cage holding radioactive lutetium-177.

What it's for

Prescribed for
Metastatic prostate cancer with PSMA (confirmed with a PET scan): resistant to hormone therapy or, together with it, still sensitive.
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Educational satire, not medical advice.