Andrew Krouse was working at the University of Virginia when he learned about a revolutionary technology his neighbor, a professor of medicine, was developing that could be the key to cancer treatment. Not long after, Krouse joined the team and is now president and chief executive of Tau Therapeutics, a life-sciences company based in Charlottesville that is developing a nontoxic pill it believes can stop cancer and block the side effects of chemotherapy and radiation.  “Our clinical priority for the technology we licensed from U-Va. is a program we call Interlaced Therapy. It promis...