Small numbers, big impact: the unique challenges of studying rare cancers 07 Mar 2020 New results from an ICR-led clinical trial are set to change the outlook for patients with a rare form of kidney cancer. Sarah Wells takes a look at some of the main challenges in studying rare cancers, and how the ICR’s researchers are going about making discoveries to improve the outlook for the one in five cancer patients with a rare cancer. Find out more Show/Hide