Background: ALRN-6924 is a cell-permeating, stabilized alpha-helical peptide that binds with
high affinity to endogenous p53 inhibitors MDM2 and MDMX. Treatment with ALRN-6924
increases intracellular p53 levels and initiates its transcriptional activity, leading
to cell cycle arrest. This effect is limited to cells with wild-type, functional p53;
therefore, for patients with tumors harboring mutated P53, pre-treatment with ALRN-6924
may selectively induce cell cycle arrest in normal cells allowing chemotherapy to
selectively target cancer cells which are actively cycling.
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