Boundless Bio is a clinical-stage precision oncology company specializing in the development of novel therapeutics for patients with oncogene-amplified cancers. Oncogene amplification is a genetic alteration that occurs when a gene is duplicated, resulting in an increased expression of the gene. This can lead to uncontrolled cell growth and cancer. Furthermore, the targets are discovered using Boundless Bio’s proprietary Spyglass research platform that has specific vulnerabilities of extrachromosomal DNA (ecDNA)-driven cancers. The company was the first to develop ecDNA-directed therapies for patients with oncogene-amplified cancer.
As of June 2024, the company had three drug candidates in its pipeline. BBI-355, the lead product of the company, is a clinical-stage ecDNA-directed therapy being evaluated in patients with oncogene-amplified cancers. It works by blocking CHK1, a protein essential for DNA damage response and repair, disrupting the DNA repair process in cancer cells. Furthermore, the company was also developing an ecDNA DIAGNOSTIC clinical trial assay, ECHO, in collaboration with SOPHiA GENETICS (since September 2021).
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