Deciphera Pharmaceuticals shares more than doubled this week after the drugmaker said its treatment helped stomach cancer patients live longer without their disease worsening in a late-stage study. The treatment, ripretinib, was tested against placebo in 129 patients with advanced gastrointestinal stromal tumors (GIST), a rare cancer affecting the digestive tract, who had received at least 3 prior therapies. Ripretinib demonstrated a median progression-free survival rate of 6.3 months compared with a month in case of placebo, the company said, adding that the drug significantly reduced the risk of disease progression or death by 85%. Learn More