Organizing Committee

Fenna Sillé

Fenna Sillé, PhD, is an Assistant Professor at JHU and Deputy Director of the Johns Hopkins Center for Alternatives to Animal Testing. There she leads the exposome program and studies how environmental exposures change the immune system.


Thomas Hartung

Thomas Hartung, MD, PhD, steers the revolution in toxicology to move away from 50+ year-old animal tests to organoid cultures and the use of artificial intelligence.


Gary Miller

Gary Miller is a leader in the field of exposomics, which studies the comprehensive and cumulative effects of physical, chemical, biological, and psychosocial mediators that impact biological systems.


Nicole Kleinstreuer

Nicole Kleinstreuer, Ph.D., began her role as Director of the NTP Interagency Center for the Evaluation of Alternative Toxicological Methods (NICEATM) in 2020.


Danilo Tagle

Dan Tagle is the director of NCATS’ Office of Special Initiatives. He also recently served as the Center’s acting deputy director, as well as the acting director of NCATS’ Office of Grants Management and Scientific Review, now the Division of Extramural Activities.


David Balshaw

David Balshaw is the Director of the Division of Extramural Research and Training. He joined NIH as a Program Officer at the National Heart, Lung, and Blood Institute in 2001 and moved to NIEHS in 2003.