
FDA reviews a proposed Keytruda biosimilar, Roche expands its obesity pipeline with an RNAi deal, and guselkumab shows promise for fistula remission in Crohn disease.
Combining high performance protein A capturing and a single polishing step on a salt-tolerant anion exchange resin, downstream costs were reduced by 45% in this Tosoh 2-step process for mAb purification.






