CARDiac Toxicity Following ImmunOtherapy Treatment for Melanoma

People who develop a type of skin cancer known as 'melanoma' are often treated with immunotherapy. The type of immunotherapy used for patients with melanoma is known as Immune Checkpoint Inhibitors (ICI). While ICI is very successful, it can lead to negative side effects that are known as 'immune related adverse events' (irAEs). These irAEs can affect any part of the body and can range in severity from mild symptoms to death. There has been a lot of research on irAEs that occur during ICI, but less is known about how irAEs can affect people in the long-term. Although irAEs are common from ICI, acute irAEs affecting the heart (cardiac irAEs) are uncommon. However, as they relate to the heart, they are often serious and have a higher rate of death compared to other types of irAEs. Little is known regarding the long-term effects of ICI on the heart. However, there is some evidence to suggest that ICI may also cause long-term cardiac irAEs such as accelerating a build-up of fatty materials in the arteries known as 'atherosclerosis' and inflammation of plaque in the heart. This can lead to an increased risk of heart attack. Although there are guidelines for patients on ICI treatment to receive investigations to look for irAEs, including cardiac irAEs, there are no guidelines for monitoring long-term survivors. The aim of the CARD-IO study is to establish if it is possible to investigate in long-term follow-up cardiac side-effects in patients who received ICI for melanoma. The data for this study would be used to support a larger study in the same patient population. Potentially, this could lead to a change in guidelines and long-term follow-up care for melanoma patients who have received ICI.