Fibroblast Activation Protein–Targeted Radiopharmaceutical Therapy Using 177Lu-, 90Y-, and 225Ac-Labeled 3BP-3940: First Experience in 21 Different Advanced …
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RP Baum, T Zhao, V Jakobsson…
Journal of Nuclear …, 2026
jnm.snmjournals.org
Fibroblast activation protein (FAP) is an attractive target for molecular precision imaging and therapy, given its specific tumor expression across various cancer types. We report first-in-human results using a FAP-targeted cyclic peptide, 3BP-3940, labeled with 177Lu, 90Y, and 225Ac for FAP-targeted radiopharmaceutical therapy (FRT) in patients with end-stage cancer. Methods: Eighty-eight patients with 21 distinct advanced metastatic solid tumor types received 227 cycles of 177Lu-, 90Y-, 225Ac-labeled 3BP-3940, either alone or as tandem …

