Dr. Pedro De Marchi is a Medical Oncologist at Oncoclinicas in Rio de Janeiro, RJ, Brazil. He is the National Head and Neck Leader at Oncoclinicas, Medical Coordinator of Instituto Oncoclinicas and Director Member of GBCP (Grupo Brasileiro de Câncer de Cabeça e Pescoço). Dr De Marchi's main research interest include clinical outcomes, predictive biomarker of response and toxicity, and public awareness of head and neck cancer. He is involved in various randomized trials as Princial Investigator and co-investigator.