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Biochemical failure-free survival of F-rhPSMA-7 and F-flotufolastat PET-guided salvage radiotherapy for patients with recurrent prostate cancer.
Sci Rep
January 2025
Department of Nuclear Medicine, TUM University Hospital rechts der Isar, TUM School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany.
Prostate-specific membrane antigen (PSMA)-targeted positron emission tomography (PET) has improved localization of prostate cancer (PC) lesions in biochemical recurrence (BCR) for salvage radiotherapy (SRT). We conducted a retrospective review of patients undergoing F-rhPSMA-7 or F-flotufolastat (F-rhPSMA-7.3)-PET-guided SRT compared with conventional-SRT (C-SRT) without PET.
View Article and Find Full Text PDFPSMA-Targeted Intracellular Self-Assembled Probe for Enhanced PET Imaging.
Bioconjug Chem
January 2025
School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
Positron-emission tomography (PET) offers high sensitivity for cancer diagnosis. However, small-molecule-based probes often exhibit insufficient accumulation in tumor sites, while nanoparticle-based agents typically have limited delivery efficiency. To address this challenge, this study proposes a novel PET imaging probe, Ga-CBT-PSMA, designed for prostate cancer.
View Article and Find Full Text PDFImprovement of End-of-Synthesis Radiochemical Purity of Lu-DOTA-PSMA-Ligands with Alternative Synthesis Approaches: Conversion Upswing and Side-Products Minimization.
Pharmaceutics
November 2024
State Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, Zhivopisnaya Str., Bld. 46, 123098 Moscow, Russia.
Background: Radiochemical purity is a key criterion for the quality of radiopharmaceuticals used in clinical practice. The joint improvement of analytical methods capable of identifying related radiochemical impurities and determining the actual radiochemical purity, as well as the improvement of synthesis methods to minimize the formation of possible radiochemical impurities, is integral to the implementation of high-tech nuclear medicine procedures. PSMA-targeted radionuclide therapy with lutetium-177 has emerged as an effective treatment option for prostate cancer, and [Lu]Lu-PSMA-617 and [Lu]Lu-PSMA have achieved global recognition as viable radiopharmaceuticals.
View Article and Find Full Text PDFFuture Prospect of Low-Molecular-Weight Prostate-Specific Membrane Antigen Radioisotopes Labeled as Theranostic Agents for Metastatic Castration-Resistant Prostate Cancer.
Molecules
December 2024
Department of Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia.
Prostate cancer ranks as the fourth most common cancer among men, with approximately 1.47 million new cases reported annually. The emergence of prostate-specific membrane antigen (PSMA) as a critical biomarker has revolutionized the diagnosis and treatment of prostate cancer.
View Article and Find Full Text PDFJHU-2545 preferentially shields salivary glands and kidneys during PSMA-targeted imaging.
Eur J Nucl Med Mol Imaging
January 2025
Johns Hopkins Drug Discovery, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA.
Purpose: Prostate-specific membrane antigen (PSMA) radioligand therapy is a promising treatment for metastatic castration-resistant prostate cancer (mCRPC). Several beta or alpha particle-emitting radionuclide-conjugated small molecules have shown efficacy in late-stage mCRPC and one, [[177Lu]Lu]Lu-PSMA-617, is FDA approved. In addition to tumor upregulation, PSMA is also expressed in kidneys and salivary glands where specific uptake can cause dose-limiting xerostomia and potential for nephrotoxicity.
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