r. Metzger received his MD from Federal University of Minas Gerais in 2003 and completed training in Internal Medicine and Medical Oncology in 2008. Following his formal training, he spent three years at the Institute Jules Bordet in Brussels where he completed a research fellowship and initiated a career dedicated to understanding the biological features of the second most common histological subtype of breast cancer - invasive lobular carcinoma. Since joining the Breast Oncology Program at Dana-Farber Cancer Institute in 2012, he has established an active clinical practice and developed research efforts focused on identifying better treatment strategies for patients diagnosed with breast cancer. He is involved in designing and leading national and international clinical trials with a strong translational component. In addition to his physician and clinical investigator roles, Dr. Metzger holds an Executive Officer position at the Alliance for Clinical Trials in Oncology.