Craig J. Thomas, Ph.D., is a senior scientist for the Precision Therapeutics and Translational Technologies (PT3) program in the Chemical Genomics Branch of NCATS’ Division of Preclinical Innovation. The PT3 program engages in a wide range of research activities using state-of-the-art methods from various areas to achieve specific goals. These areas include disease model development/characterization, high-throughput screening, medicinal chemistry/chemical biology and treatment development. The PT3 team performs research in three domains: (1) small molecule discovery, (2) drug repositioning and drug combination discovery, and (3) precision medicine.