FibroGen founder Thomas Neff dies suddenly as drug he championed racks up milestones

Thomas Neff founded FibroGen in 1993 and has led the company for decades. Now, the company is searching for its next leader with his unexpected death over the weekend. Neff's passing comes as FibroGen nears key filings for anemia launch roxadustat, and on the heels of a recent nod in China.