Founded in 1907, the American Association for Cancer Research (AACR) is the world’s first and largest professional organization dedicated to advancing cancer research and its mission to prevent and cure cancer. AACR membership includes more than 61,000 laboratory, translational, and clinical researchers; population scientists; other health care professionals; and patient advocates residing in 145 countries and territories around the world. The AACR marshals the full spectrum of expertise of the cancer community to accelerate progress in the prevention, diagnosis, and treatment of cancer by convening more than 20 conferences and educational workshops each year, the largest of which is the AACR Annual Meeting.
The AACR publishes 10 prestigious, peer-reviewed scientific journals. Other AACR publications include Cancer Today, a magazine for cancer patients and caregivers; the annual AACR Cancer Progress Report; AACR Cancer Disparities Progress Report; AACR Annual Impact Report; Leading Discoveries, the AACR’s awareness and donor magazine; and the blog, Cancer Research Catalyst. In addition, the AACR funds meritorious research directly as well as in cooperation with numerous cancer organizations. As the Scientific Partner of Stand Up To Cancer, the AACR provides expert peer review, grants administration, and scientific oversight of team science and individual investigator grants in cancer research that have the potential for near-term patient benefit. The AACR actively communicates with legislators and other policymakers about the value of cancer research and related biomedical science in saving lives from cancer. For more information about the AACR, visit AACR.org.
AACR Officers
PRESIDENT
Lillian L. Siu, MD, FAACR (2025-2026)
Director, Phase I Clinical Trials Program, Codirector, Robert and Maggie Bras and Family Drug Development Program, Clinical Lead, Tumor Immunotherapy Program, BMO Chair, Precision Cancer Genomics, Princess Margaret Cancer Centre, Professor of Medicine, University of Toronto, Toronto, Ontario
PRESIDENT-ELECT
Keith T. Flaherty, MD, FAACR (2025-2026)
Director of Clinical Cancer Research, Richard Saltonstall Endowed Chair in Oncology, Mass General Cancer Center, Professor of Medicine, Harvard Medical School, Boston, Massachusetts, Associate Member, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
IMMEDIATE PAST PRESIDENT
Patricia M. LoRusso, DO, PhD (hc), FAACR (2025-2026)
Professor of Medicine, Chief of the Early Phase Clinical Trials Program, Yale University, Associate Center Director of Experimental Therapeutics, Yale Cancer Center, New Haven, Connecticut
TREASURER
Michael A. Caligiuri, MD, FAACR (2025-2028)
Professor, Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Beckman Research Institute, Duarte, California
CHIEF EXECUTIVE OFFICER
Margaret Foti, PhD, MD (hc)
American Association for Cancer Research, Philadelphia, Pennsylvania