A game-changing tool for diagnosing cancer is a step closer, after a trial reached its goal of 140,000 volunteers in record time. It's a simple blood test that can detect more than 50 types of cancer, which could ensure early treatment for thousands of patients, often the key to beating the disease. • Subscribe to ITV News on YouTube: http://bit.ly/2lOHmNj • Get breaking news and more stories at http://www.itv.com/news Follow ITV News on Facebook: / itvnews Follow ITV News on Twitter: / itvnews Follow ITV News on Instagram: / itvnews