The DDR pathway plays a critical role in repairing DNA damage in healthy cells that would otherwise cause mutations or cell death. When this pathway is altered and becomes unable to repair this damage, mutated cells can grow out of control and become cancerous. They can also be more resistant to standard chemotherapies and radiation. Aprea Therapeutics is developing therapies to target mutations in genes in this pathway to treat certain cancers.  We spoke to Oren Gilad, president and CEO of Aprea Therapeutics about the DDR pathway, the use of so-called synthetic lethality to treat these cancers, and why Aprea’s approach may result in safer and more targeted therapies.