Issues with the European Pharmacopoeia Quality Control Method for 99mTc-Labelled Macroaggregated Albumin

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

46 Downloads (Pure)

Abstract

Technetium-99m macroaggregated albumin ([99mTc]Tc-MAA) is an injectable radiopharmaceutical used in nuclear medicine for lung perfusion scintigraphy. After changing to a new batch of macroaggregated albumin (MAA), we saw unwanted uptake in the liver and spleen. The batch was therefore tested by both the supplier and us and we found it to comply with the requirements of the European Pharmacopoeia (Ph. Eur.). However, a simple comparison between the problematic batch and a batch supplied by another manufacturer showed that there was a significant difference. The quality testing showed a higher number of small particles in the problem encumbered MAA batch with unwanted in vivo uptake. In this article we present a simple method of testing for particle size of [99mTc]Tc-MAA, which gives a good indication of how the radioactive drug performs in vivo. We argue that the quality control method described in the Ph. Eur. should be changed. The changes will improve concordance between the laboratory analyzes and what is seen in vivo in human lung perfusion scintigraphy. Furthermore, we hope that the MAA suppliers without delay will replace their release procedure to be in accordance with the method described in this article.

OriginalsprogEngelsk
Artikelnummer3997
TidsskriftMolecules
Vol/bind27
Udgave nummer13
ISSN1420-3049
DOI
StatusUdgivet - jul. 2022

Fingeraftryk

Dyk ned i forskningsemnerne om 'Issues with the European Pharmacopoeia Quality Control Method for 99mTc-Labelled Macroaggregated Albumin'. Sammen danner de et unikt fingeraftryk.

Citationsformater