Biotechnology Among last week’s notable news, Pfizer and Ionis pulled the plug on the development of their cholesterol candidate vupanorsen, with rights to the drug returned to Ionis. US biotech Biogen last week exercised its option to co-develop cancer candidate mosunetuzumab, paying Roche a one-time fee of $30 million to do so. Separately, Biogen also released financial results for 2021, along with business development plan as it tries to overcome the disappointment of its Alzheimer’s treatment Aduhelm. Also, cell therapy developer Orchard Therapeutics gained clearance in England and Wales for its gene therapy Libmeldy for a rare disease affecting babies, which at a list price of around $3.8 million is seen as the most expensive drug in the world, although this has been heavily discounted. 6 February 2022