Methods, compounds, compositions and kits that relate to pretargeted delivery of diagnostic and therapeutic agents are disclosed. In particular, methods for radiometal labeling of biotin and for improved radiohalogenation of biotin, as well as related compounds, are described. Also, clearing agents,...http://www.google.com.au/patents/US6287536?utm_source=gb-gplus-sharePatent US6287536 - Two-step pretargeting methods using improved bidtin-active agent conjugates
