Ligand Pharmaceuticals has received $47 million as a result of signing an amendment relating to its OmniAb platform agreement with WuXi Biologics. This amendment provides WuXi Bio more efficiency in expanding its OmniAb antibody discovery services.

Under the previous license agreement, OmniAb antibodies discovered and sub-licensed by WuXi Bio generated potential pre-defined contract payments to Ligand and potential royalties on global product sales. Under the amended agreement, Ligand will continue to be eligible to earn royalties at the same rate and terms as the previous agreement and the pre-defined contract payments have been eliminated.

With this new business relationship, WuXi Bio believes it will be able to increase the number of OmniAb antibodies it discovers for its clients in China and around the world.

"This expanded agreement with WuXi Bio demonstrates the continued success of our OmniAb platform, and illustrates the focus and ongoing efforts by OmniAb partners to advance their OmniAb pipelines. There are now eight OmniAb-derived antibodies at clinical-stage, and a number of other programs are advancing as well," said John Higgins, chief executive officer of Ligand. "This transaction also underscores the significant value a key partner sees in the OmniAb platform, and we are pleased to offer WuXi Bio this added flexibility as they discover antibodies with our platform."