Boundless Bio

Boundless Bio is a clinical-stage biopharmaceutical company focused on developing innovative therapies for the treatment of aggressive cancers linked to extrachromosomal DNA (ecDNA). Founded in 2018 and based in La Jolla, California, the company aims to address the significant unmet medical needs of patients with oncogene amplified tumors, which affect over 14% of cancer patients. By targeting ecDNA, a key factor in oncogene amplification, Boundless Bio seeks to provide transformative treatments for previously difficult-to-treat cancers. One of its leading candidates, BBI-355, is an oral, selective inhibitor of checkpoint kinase 1 (CHK1), designed to manage the replication and transcription of ecDNA in cancer cells.