Meredith A. McKean, MD, MPH, Sarah Cannon Research Institute, Nashville, TN, discusses the efficacy, safety and pharmacokinetic and pharmacodynamic data from a Phase I dose-escalation study of a novel therapeytic peptide, ST101, targeting the oncogenic transcription factor C/EBPβ, in patients with advanced and metastatic solid tumors. ST101 has been demonstrated to induce selective cancer cell cytotoxicity across a variety of tumor types, including but not limited to breast cancer, melanoma, prostate cancer, GBM, lung cancer, and acute myeloid leukemia. This interview took place at the European Society for Medical Oncology (ESMO) 2021 congress.