Evaluation of the 177mLu-concentration in in-house produced 177Lu-radiopharmaceuticals and commercially available Lutathera®

Bibliographic Details
Title: Evaluation of the 177mLu-concentration in in-house produced 177Lu-radiopharmaceuticals and commercially available Lutathera®
Authors: Matthias Balzer, Fleur Spiecker, Stephanie Bluemel, Holger Amthauer, Winfried Brenner, Sarah Spreckelmeyer
Source: EJNMMI Radiopharmacy and Chemistry, Vol 8, Iss 1, Pp 1-8 (2023)
Publisher Information: SpringerOpen, 2023.
Publication Year: 2023
Collection: LCC:Medical physics. Medical radiology. Nuclear medicine
LCC:Therapeutics. Pharmacology
Subject Terms: Lutetium-177 m, Radionuclidic impurities, Metastable, Long-lived, Radiopharmaceutical quality control, Waste management, Medical physics. Medical radiology. Nuclear medicine, R895-920, Therapeutics. Pharmacology, RM1-950
More Details: Abstract Background 177Lu-radiopharmaceuticals can contain the metastable impurity [177mLu]lutetium with a physical half-life of 160.4 days, in varying concentrations depending on the route of production of the radionuclidic precursor [177Lu]lutetium. Due to the long half-life of [177mLu]lutetium, difficulties with waste disposal or sterility testing could arise. Here, we analyzed several 177Lu-samples of different origins and suppliers regarding their 177mLu-concentration. Results All samples tested showed a 177mLu-concentration in the range that was stated on the certificate of analysis from the supplier which is in accordance with the European Pharmacopoeia. Conclusions Although all 177mLu-concentrations were in accordance with the European Pharmacopoeia, we need to take into account the respective national legislation regarding radioactivity release limits. With regard to the German legislation, several probes for sterility testing in external laboratories could not be released for transport due to the concentration of [177mLu]lutetium. Moreover, waste water tanks should specifically be monitored for 177mLu-concentration, when e.g. Lutathera® is administered in the clinic.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2365-421X
Relation: https://doaj.org/toc/2365-421X
DOI: 10.1186/s41181-023-00222-2
Access URL: https://doaj.org/article/a0e4d808f216416f8c873bad43081709
Accession Number: edsdoj.0e4d808f216416f8c873bad43081709
Database: Directory of Open Access Journals
More Details
ISSN:2365421X
DOI:10.1186/s41181-023-00222-2
Published in:EJNMMI Radiopharmacy and Chemistry
Language:English