Ataxia telangiectasia and Rad3-related protein serine/threonine kinase (ATR) is a mediator of the cellular replication stress response that, upon activation, initiates a cascade of coordinated reactions that ultimately enables DNA repair. This biological function makes ATR an attractive therapeutic target in cancers with elevated replication stress or DNA-repair deficiency. This Review discusses the currently available results from clinical trials testing ATR inhibitors as well as challenges and solutions in the development of this therapeutic class.
- Natalie Y. L. Ngoi
- Patrick G. Pilié
- Timothy A. Yap