Filip Janku, MD, PhD, University of Texas MD Anderson Cancer Center, Houston, TX, discusses the activity, safety and circulating tumor DNA (ctDNA) dynamics of paradox breaker BRAF inhibitor PLX8394 in patients with advanced cancer. Dynamic changes in plasma ctDNA using droplet digital PCR (ddPCR) and targeted next-generation sequencing (NGS) were compared to treatment outcomes and were predictive of clinical responses in patients. This interview was recorded via an online conference call with The Video Journal of Oncology (VJOncology).