Histogen Inc., a clinical-stage therapeutics company, focuses on developing clinical and preclinical small molecule pan-caspase and caspase selective inhibitors that protect the body's natural process to restore immune function. The company's product candidates include emricasan for the treatment of acute bacterial skin and skin structure infections, as well as other infectious diseases. Its preclinical product candidates include CTS-2090 and CTS-2096, which are selective small molecule inhibitors of caspase-1 designed for the treatment of various inflammatory diseases. Histogen Inc. was founded in 2007 and is based in San Diego, California. On April 18, 2024, Histogen Inc. filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of California.