Carlos H. Barrios

Carlos H. Barrios, MD is Director of the Oncology Research Center at Hospital São Lucas and Professor of Medicine at PUCRS (Pontifical Catholic University of Rio Grande do Sul) in Porto Alegre, Brazil. He is Latin America's most prominent breast cancer clinical trialist and a globally respected leader in translating breast oncology advances to low- and middle-income country (LMIC) settings. Dr. Barrios has participated as a principal investigator or co-investigator in more than 150 international clinical trials across all breast cancer subtypes, including the MONARCH series evaluating abemaciclib, PALOMA-3 evaluating palbociclib, MONALEESA evaluating ribociclib, and multiple ADC and immunotherapy trials in TNBC. He has been a particularly vocal advocate for ensuring that LMIC populations are represented in pivotal registration trials, characterizing how socioeconomic, genetic, and healthcare system factors affect breast cancer presentation, treatment adherence, and outcomes in Brazilian and broader Latin American patients. Dr. Barrios co-leads the Latin American Cooperative Oncology Group (LACOG) and is a founding member of the Global Breast Cancer Initiative. He serves on the ESMO Faculty and has been a member of ASCO Cancer in the Global Community committees. He has authored or co-authored more than 350 peer-reviewed publications and has received multiple international recognitions for his contributions to global cancer research equity.