Cardiff Oncology, Inc. is a clinical-stage biotechnology company. It is leveraging PLK1 inhibition, a well-validated oncology drug target, to develop novel therapies across a range of cancers with the unmet medical need. It is focused on clinical programs in indications, such as RAS-mutated metastatic colorectal cancer (mCRC), and in investigator-initiated trials in metastatic pancreatic ductal adenocarcinoma (mPDAC), small cell lung cancer (SCLC), and triple negative breast cancer (TNBC). Its lead drug candidate, Onvansertib, is an oral, small molecule drug candidate that is highly specific for PLK1 inhibition with a 24-hour half-life. It has five ongoing and planned clinical trials of onvansertib: one trial (CRDF-004) in first-line treatment in patients with RAS-mutated mCRC, one trial (CRDF-001) in second-line treatment in patients with mPDAC, and three investigator-initiated trials in first line mPDAC, relapsed SCLC and unresectable locally advanced or metastatic TNBC.