Zoran Antonijevic is a Senior Director at Cytel Consulting with responsibility for strategic advice at trial, program, or portfolio level. His research areas include: adaptive design, pharmaceutical portfolio optimization, and decision-making within clinical drug development process. Zoran has 20 years of experience in drug development. His prior experience includes positions at Harvard School of Public Health, GlaxoSmithKline, and Quintiles Innovation where his primary responsibility was to develop designs and approaches that maximize probability of success for programs and/or maximize product's value. He also has extensive experience with performing due-diligence, and as a member of product portfolio executive teams. Externally, Zoran is the chair of DIA Adaptive Design Scientific Working Group.