Swedish Orphan Biovitrum AB(Sobi) has been pretty quiet on the business development front since an $8.1bn buyout by a private equity syndicate fell through at the end of last year but the company has now splashed out $55m upfront to get the rights in Europe and most international markets to ADC Therapeutics SA’s lymphoma treatment Zynlonta.
Zynlonta (loncastuximab tesirine) is an antibody-drug conjugate targeting CD19, a protein expressed on the surface of B-cells. In April last year, it received US Food and Drug Administration granted accelerated...