A single dose of an experimental drug dramatically reduced levels of a deadly form of cholesterol, often thought to be untreatable, for up to one year. Lipoprotein(a) is a type of cholesterol that lurks in the body, undetected by routine tests and undeterred by existing drugs, diet or exercise. The findings, cardiologists say, are a critical step toward treating the millions of Americans genetically predisposed to abnormally high levels of lipoprotein(a), or Lp(a). More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news X: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.