内容摘要：How that part of the deal could change remains uncertain, with the agreement between both governments yet to be implemented.

How that part of the deal could change remains uncertain, with the agreement between both governments yet to be implemented.

Three years on and her campaign has led to a UK-wide ban now coming into force.Laura realised her message had struck a chord when a TikTok video she created was viewed 10.5 million times.

It led to a prominent newspaper campaign and then calls from government officials requesting meetings with ministers.She told BBC Scotland News: "If you look up disposable vapes, (mine) is the first (tweet) that comes up."Within five weeks it had made the headlines and of course everyone was showing where these vapes were."

The year after Laura first raised the issue, the Scottish government commissioned an urgent report into the impact of single use vapes on the environment and on young people.It revealed that 2.7 million vapes had been littered on Scotland's streets in a single year - about 10%t of the total consumed.

The report also found that 22% of all under-18s - about 78,000 people - were using vapes.

But it was the environmental impact which concerned Laura the most.Ms Buchan is among thousands in the UK and millions worldwide who could benefit from the drug.

"I think I'm really lucky because I've got the most supportive husband, children and their partners and extended family and wonderful friends."What this drug can do for me is allow me to see my son's wedding next year and to look into the future."

Despite its approval for use globally by the US Food and Drug Administration (FDA) in 2023, capivasertib only became available to patients via the NHS in England and Wales this year.Dr Simon Waters, consultant medical oncologist at Velindre Cancer Centre, said it was a "great opportunity now we've got to this point".