One of the world's biggest cancer conferences is happening right now. Here are 5 breakthroughs they're talking about: 1. The world's leading cause of cancer death (lung cancer) now has a therapy that cut the risk of death by 58%, moving median survival from 12.7 to 21.1 months (small cell lung cancer). 2. A new personalized therapy for Melanoma can train the immune system in cancer patients and alongside a common cancer med, it cut the risk of recurrence or death by 42%. 3. A therapy has been FDA approved to allow certain people with a subset of rectal cancers to skip chemo, radiation, and surgery. Around half of patients so far were cancer free over a year later. Colorectal cancer is the deadliest cancer in Americans under 50. 4. Chinese researchers presented data on a new therapy for breast cancer where it more than doubled the time before the cancer began to worsen. 5. Another huge therapy saw median survival increase by almost 50% in a specific mutated type of lung cancer, while also lowering decreasing severe side effects. (NSCLC type) See sources below.