Alex's son Jack was diagnosed with Duchenne muscular dystrophy in 2011. The rare, degenerative muscle-wasting disease mainly affects boys, and leaves them needing a wheelchair by their teens. Few survive beyond their 20s.
In 2012, Alex and husband Andy, a former rugby league player, set up Joining Jack to raise money for research into the disease. They raised more than £2 million for clinical trials.
As well as fundraising and increasing awareness, Alex has become a powerful voice in the Duchenne community, campaigning for earlier access to medicines, and investment in a promising gene therapy programme which could help all boys with Duchenne.
In 2016, Joining Jack teamed up with The Duchenne Children's Trust to form Duchenne UK, a national charity devoted to finding a cure for the disease.
Duchenne UK has now directly funded three clinical trials and seven new DMD HUB sites, funding 16 clinical trial staff, which has allowed 194 more boys since 2015 to take part in clinical trials and has committed £10 million on direct research grants.
In a letter to Alex, Prime Minister Theresa May said: "You should be incredibly proud of your response to Jack’s diagnosis. Each day, your work is helping researchers to move one step closer to finding a cure to this debilitating illness.”