Quantification of binding of IGF-1 to BI 836845, a candidate therapeutic antibody against IGF-1 and IGF-2, and effects of this antibody on IGF-1:IGFBP-3 complexes in vitro and in male C57BL/6 mice.


IGF-1 and IGF-2 are potent mitogens acting through the IGF-1 receptor (IGF-1R). The importance of the IGF system in neoplasia has been demonstrated in several models, and IGF-1 signaling has become a target for drug development. The drug candidate BI 836845 is a fully human IgG1 ligand-neutralizing antibody that cross-reacts with IGF-1 and IGF-2. It has… (More)
DOI: 10.1210/en.2013-1791


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