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Synthesis, stabilization and formulation of [177Lu]Lu-AMBA, a systemic radio therapeutic agent for Gastrin Releasing Peptide receptor positive tumors
被引:39
|作者:
Chen, Jianqing
[1
]
Linder, Karen E.
[1
]
Cagnolini, Aldo
[1
]
Metcalfe, Edmund
[1
]
Raju, Natarajan
[1
]
Tweedle, Michael F.
[1
]
Swenson, Rolf E.
[1
]
机构:
[1] Bracco Res USA Inc, Princeton, NJ 08540 USA
关键词:
Lu-177-AMBA;
bombesin;
gastrin releasing peptide;
targeted radiotherapy;
radiolysis protection;
D O I:
10.1016/j.apradiso.2007.11.007
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A robust formulation was developed for [Lu-177]Lu-AMBA (Lu-177-DO3A-CH2CO-G-[4-aminobenzoyl]-QWAVGHLM-NH2), 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. (c) 2007 Elsevier Ltd. All rights reserved.
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页码:497 / 505
页数:9
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