“This orphan drug designation reinforces the potential of KT-253 to advance the treatment of AML by targeting MDM2, a protein that has been challenging to effectively drug with conventional medicines,” said Nello Mainolfi, Founder, President and CEO, Kymera Therapeutics. “We have a significant opportunity to deliver an important new medicine that acts on this common cancer mechanism, and we look forward to rapidly advancing KT-253 in AML and exploring its potential in other hematological and solid tumors.”