Cited by 636Radiopharmaceutical Chemistry and ApplicationsProstate Cancer Diagnosis and TreatmentProstate Cancer Treatment and Research

PSMA-Targeted Radionuclide Therapy of Metastatic Castration-Resistant Prostate Cancer with 177Lu-Labeled PSMA-617

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Kratochwil, Clemens, Giesel, Frederik L., Stefanova, Melsa, Benešová, Martina, Bronzel, Marcus, Afshar-Oromieh, Ali, Mier, Walter, Eder, Matthias +2 more·2016·Journal of Nuclear Medicine

Abstract

UNLABELLED: Prostate-specific membrane antigen (PSMA) is an excellent target for radionuclide therapy of metastasized castration-resistant prostate cancer (mCRPC). Besides high affinity and long tumor retention, the DOTA-conjugated ligand PSMA-617 has low kidney uptake, making it an excellent choice for therapeutic application. We retrospectively report our experience with (177)Lu-PSMA-617-targeted radionuclide therapy in a case series of mCRPC patients resistant to other treatments. METHODS: Patients with PSMA-positive tumor phenotypes were selected by molecular imaging. Thirty patients received 1-3 cycles of (177)Lu-PSMA-617. During therapy, pharmacokinetics and radiation dosimetry were evaluated. Blood cell count was checked every 2 wk after the first and every 4 wk after succeeding cycles. Prostate-specific antigen (PSA) was determined every 4 wk. Radiologic restaging was performed after 3 cycles. RESULTS: Twenty-one of 30 patients had a PSA response; in 13 of 30 the PSA decreased more than 50%. After 3 cycles, 8 of 11 patients achieved a sustained PSA response (>50%) for over 24 wk, which also correlated with radiologic response (decreased lesion number and size). Normally, acute hematotoxicity was mild. Diffuse bone marrow involvement was a risk factor for higher grade myelosuppression but could be identified by PSMA imaging in advance. Xerostomia, nausea, and fatigue occurred sporadically (<10%). Clearance of non-tumor-bound tracer was predominantly renal and widely completed by 48 h. Safety dosimetry revealed kidney doses of approximately 0.75 Gy/GBq, red marrow doses of 0.03 Gy/GBq, and salivary gland doses of 1.4 Gy/GBq, irrespective of tumor burden and consistent on subsequent cycles. Mean tumor-absorbed dose ranged from 6 to 22 Gy/GBq during cycle 1. CONCLUSION: (177)Lu-PSMA-617 is a promising new option for therapy of mCRPC and deserves more attention in larger prospective trials.

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  1. Bostwick DG, Pacelli A, Blute M, Roche P, Murphy GP. Prostate specific mem- brane antigen expression in prostatic intraepithelial neoplasia and adenocarci- noma: a study of 184 cases. Cancer. 1998;82:2256-2261.

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Authors
Kratochwil, C., Giesel, F. L., Stefanova, M., Benešová, M., Bronzel, M., Afshar-Oromieh, A., Mier, W., Eder, M., Kopka, K., & Haberkorn, U.
Affiliations
  • University Hospital Heidelberg (DE)
  • German Cancer Research Center (DE)
  • ABX-CRO Advanced Pharmaceutical Services (Germany) (DE)
Venue
Journal of Nuclear Medicine
Published
2016-03-16
Volume
57
Issue
8
Pages
1170-1176
ISSN
  • 0161-5505 (ISSN-L)
  • 2159-662X
OpenAlex
W2304896218
Cited by
636
References
32
Citations by year
2026: 45 · 2025: 58 · 2024: 60 · 2023: 51 · 2022: 58 · 2021: 93 · 2020: 56 · 2019: 61 · 2018: 58 · 2017: 57 · 2016: 39
FWCI
62.17
Type
journal article
Language
en
Open access
Locations
  • Journal of Nuclear Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiopharmaceutical Chemistry and Applications
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
Keywords
castration-resistant prostate cancer, metastatic prostate cancer, PSMA-617, lutetium-177, PSMA radioligand therapy, prostate-specific membrane antigen, radiation dosimetry, hematologic toxicity, bone marrow involvement, xerostomia, PSA response, radiological response
MeSH terms
Aged, Aged, 80 and over, Antigens, Surface, Dipeptides, Heterocyclic Compounds, 1-Ring, Humans, Lymphatic Metastasis, Male, Middle Aged, Biomarkers, Tumor, Treatment Outcome, Prostate-Specific Antigen, Radiopharmaceuticals, Glutamate Carboxypeptidase II, Prostatic Neoplasms, Castration-Resistant

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