Author(s): Chen J, Linder KE, Cagnolini A, Metcalfe E, Raju N,
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Abstract A robust formulation was developed for [(177)Lu]Lu-AMBA ((177)Lu-DO3A-CH(2)CO-G-[4-aminobenzoyl]-QWAVGHLM-NH(2)), a Bombesin-like agonist with high affinity for Gastrin Releasing Peptide (GRP) receptors. During optimization of labeling, the effect of several radiostabilizers was evaluated; a combination of selenomethionine and ascorbic acid showed superiority over other tested radiostabilizers. The resulting two-vial formulation maintains a radiochemical purity (RCP) of >90\% for at least 2 days at room temperature. The method of stabilization should be useful for other methionine-containing peptide radiopharmaceuticals in diagnostic and therapeutic applications.
This article was published in Appl Radiat Isot
and referenced in Advanced Techniques in Biology & Medicine