Glen de Vries in his new book "The Patient Equation" says that despite the digital revolution in the way we can capture and analyze data, not much has changed for decades in the how clinical trials are conducted. We spoke to de Vries, co-founder and co-CEO of the clinical trials data platform Medidata, about how clinical trials need to evolve, how technology can be used to improve patient access, and how it can capture new types of data to better answer questions about the safety and efficacy of therapies.