Sara García Velázquez, MD, is a cisgender queer Mexican mestiza woman (Purhépecha and Spanish) working on the ancestral and unceded homelands of the Ohlone people in the area historically known as xučyun (Huichin), colonially known as El Cerrito, California. She is a physician and clinical research professional with more than a decade of experience across sponsor-, academic-, and site-level operations, strengthening quality and safety systems across regulated research environments in the United States, Canada, Europe, and Mexico.

Before joining Changemark, Sara worked in sponsor and site-facing roles supporting late-phase clinical development programs, where she led safety oversight, medical monitoring, protocol development, and quality system implementation across interventional, long-term follow-up, and decentralized research studies.

Sara brings deep expertise in Good Clinical Practice (GCP), inspection readiness, and the design and improvement of quality processes across regulated research environments. Her work focuses on implementing practical, fit-for-purpose approaches that support accountability, regulatory compliance, and participant safety.

At Changemark, Dr. García Velázquez leads quality assurance initiatives that enhance organizational infrastructure and empower teams to deliver rigorous, high-integrity research. She approaches quality as a collaborative, systems-level discipline, integrating safety, operations, and equity-informed practices, including cultural safety, to support accountable, responsible, and effective work across diverse contexts.