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Leave a gift in your will to change children’s lives forever
Funding vital research
We’re on a mission to save and change children’s lives through medical research, developing treatments, vaccinations and cures.
Fighting rare disease
30% of children with a rare disease will lose their lives before their fifth birthday. With your help we can develop treatments and cures to tackle rare diseases that devastate children’s lives. Help fund vital research.
Premature birth and pregnancy complications
Some women experience complications during pregnancy which can involve the mother’s health, the baby’s health or both.
Childhood cancers
In the UK almost 4,000 children and young people under 25 are diagnosed with cancer every year. We are funding research to try and improve the chances and treatment for children with brain tumours and cancer.
Successes
With the help of all our supporters we have played a significant role in many medical breakthroughs for 70 years, starting with the development of the first UK polio vaccines.
RIDE Series
Join the RIDE Series and challenge yourself with routes to suit all abilities.
Enjoy full support, great aid stations, and raise vital funds for sick babies and children. Early bird entry is now open - save on registration by securing your spot today!
Cycling Events
With cycling challenges both in the UK and abroad, there's definitely a challenge waiting for you. From beginners to the very experienced and with routes ranging 20 miles to hundreds of miles, come and join us in the fight for little lives.
Race the Sun
2027 series now LIVE!! Our triathlon-style Race the Sun series pits teams against each other in a race against the setting sun, competing to bike, hike and paddle around some of the UK's most beautiful locations.
Running
Whether you’re looking for your first challenge or you’re a seasoned runner we’ve got an event for you. We have places in the world’s greatest and best-known events and races.
Hattie’s story
Coarctation of the Aorta
Latest news
Leading children's authors and illustrators unite for exclusive auction
Hope in Every Line auction launches on 12 October in support of Action Medical Research – and Tom Fletcher, Julia Donaldson, Rob Biddulph, Michael Morpurgo and Nick Butterworth are among the contributors.
Latest Blog
New research funded so far in 2026
We’ve funded 12 new medical research projects so far in 2026, investing more than £2 million to help babies and children affected by a range of conditions.
Latest Video
Latest Videos
Watch the latest and other videos from Action