An updated version of the Assisted Dying Bill is today being debated by MPs.

The debate of The Terminally Ill Adults (End of Life) Bill sponsored by Labour MP Kim Leadbeater is the first since changes were made to its impact assessment following publication on 2 May.

MPs voted in favour of the legislation in November 2024 by 330 votes to 275 in but it has continued to divide opinion.

Over 3,400 doctors and nurses wrote to the PM calling for the legislation to be scrapped ahead of the November vote.

The Bill is unlikely to be given final approval before 13 June.

Following international analysis of assisted dying legislation, Nuffield Trust senior fellow, Sarah Reed, said: ‘There are big unanswered questions that will need addressing if assisted dying is to become legal, including on funding, staffing and access. The diverse experiences of other countries offer critical learning. It can be tempting to pick out individual international examples on assisted dying to highlight a particular concern or benefit, but drawing evidence from a broad range of health systems is important.

‘The differences between countries where assisted dying is legal are not just procedural – each approach affects how individuals access and experience services, what roles and responsibilities professionals hold, and how they affect the system at large. If the Bill progresses in England and Wales, these choices need to be carefully thought through.'