| Literature DB >> 29391917 |
Richard P Baum1, Thomas Langbein1, Aviral Singh1, Mostafa Shahinfar1, Christiane Schuchardt1, Gerd Fabian Volk2, Harshad Kulkarni1.
Abstract
The dose-limiting salivary gland toxicity of 225Ac-labelled PSMA for treatment of metastatic, castration-resistant prostate cancer remains unresolved. Suppressing the metabolism of the gland by intraparenchymal injections of botulinum toxin appears to be a promising method to reduce off-target uptake. A 68Ga-PSMA PET/CT scan performed 45 days after injection of 80 units of botulinum toxin A into the right parotid gland in a 63-year-old patient showed a decrease in the SUVmean in the right parotid gland of up to 64% as compared with baseline. This approach could be a significant breakthrough for radioprotection of the salivary glands during PSMA radioligand therapy.Entities:
Keywords: Botulinum toxin; PSMA radioligands; Positron emission tomography; Prostate cancer; Salivary glands; Xerostomia
Year: 2018 PMID: 29391917 PMCID: PMC5777965 DOI: 10.1007/s13139-017-0508-3
Source DB: PubMed Journal: Nucl Med Mol Imaging ISSN: 1869-3474