Pharmaceutical Regulatory news was at the forefront of comment in the past week, notably Celgene getting a major setback on its multiple sclerosis drug candidate ozanimod with a refusal-to-file letter from the US Food and Drug Administration, as well as positive news for Sorrento Therapeutics’ with FDA approval for its non-opioid post-shingles pain drug ZTlido. AstraZeneca attracted interest with its spin out of certain inflammatory and autoimmune products into a new company – Viela Bio, as did Mylan, with the announcement of a deal with Revance Therapeutics to develop a Botox biosimilar. 4 March 2018