Graphite Bio specializes in gene editing to develop novel therapeutics for a range of genetic diseases using the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology. It operates UltraHDR, the company’s proprietary gene editing platform that focuses on homology directed repair (HDR)—a naturally occurring nucleic acid repair system. It identifies the mutated genes in the DNA and replaces it with edited hematopoietic stem cells (HSCs) that are in a specialized laboratory and returned to the body (ex vivo). Graphite was able to achieve up to 70% efficiency in HDR with its platform, which has reportedly been difficult in the past.
Graphite has six programs in its pipeline including its lead candidate GPH-101 for sickle cell disease in its Phase I clinical trials stage, a gene-replacement therapy GPH-201 for X-linked severe combined immunodeficiency (X-SCID) syndrome and targeted gene insertion therapy GPH-301 for Gaucher disease type 1 in the investigational new drug (IND) stage as well as three candidates in the discovery stage.
Key customers and partnerships
The company works together with the University of California, San Francisco and the University of California, Los Angeles as part of an academic collaboration to jointly research GPH-201.
Funding and financials
Graphite Bio went public on the Nasdaq Global Market in June 2021, raising gross proceeds of USD 238 million. The net proceeds were earmarked for the advancement of Beam’s clinical development pipeline toward the IND-enabling stage and potential clinical trials. The company did not report any revenue in 2021.
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