A stage-two trial found it significantly reduced the risk of cancer coming back in melanoma patients and now a final trial has been launched. There were 224,000 skin cancers in England in 2019 and over 1.4 million between 2013 and 2019, making it the most common cancer diagnosed in the country. In 2021, there were 15,861 new cases of malignant melonoma in England, across all ages.