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Marcela Vieira, MD

Medical Director, Gastroenterology

Marcela Vieira, MD, is the Medical Director of Gastroenterology at Bioclinica. In this role, Dr. Vieira is responsible for Gastroenterology Services where she leads the design and medical and scientific oversight of the imaging endpoints for clinical trials and provides training to staff involved in these studies. Her focus is on innovation and collaboration, bringing cutting edge technology to the care of patients with gastrointestinal disorders. 

Dr. Vieira is a physician-scientist and gastrointestinal endoscopist. She brings experience from early and late phase trials, having worked on Drug Safety and Clinical Development teams across various programs, including small molecules and biologics. She has also participated on the pre-clinical development of an oral polymer-based Duodenal Exclusion Therapy, inspired by the efficacy of gastric bypass surgery in improving metabolic abnormalities associated with Type 2 Diabetes. Her main interests lay in translating basic science discoveries into patient benefits across multiple therapeutic areas, including inflammatory diseases and immunology.

Prior to joining Bioclinica, she most recently worked in the pharmaceutical industry as a Clinical Research Physician at AstraZeneca and in academia as a Gastroenterology Researcher at Johns Hopkins University.

She has authored publications in high-impact journals such as GIE (Gastrointestinal Endoscopy Journal) and won the “Best Video Award” at Digestive Disease Week (DDW) 2016 sponsored by the American Society of Gastrointestinal Endoscopy.

Dr. Vieira earned her medical degree from Universidade José do Rosário Vellano (UNIFENAS) in Brazil and she is a board-certified gastrointestinal endoscopist by the Brazilian Society of Gastrointestinal Endoscopy (SOBED).