MSD’s rare disease drug Welireg (belzutifan) had appeared to be on track for expedited market access in the UK, after it received the first ever “innovation passport” from the medicines agency, the MHRA, in 2021, followed by regulatory approval under the Project Orbis initiative a year later.
However, the company’s market access plans could be derailed after England’s health technology assessment (HTA) body NICE provisionally rejected the...








