Constellation Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, discovers and develops therapeutics to address serious unmet medical needs in patients with cancers associated with abnormal gene expression or drug resistance. Its lead product candidates include CPI-0610 that is in Phase II clinical trials for the treatment of patients with myelofibrosis in combination with ruxolitinib; and CPI-1205 that is in Phase Ib/II clinical trials for metastatic castration-resistant prostate cancer in combination with androgen receptor signaling inhibitors. The company is also developing CPI-0209 that is in Phase I dose escalation portion of a Phase I/II clinical trial to treat solid tumors. The company was formerly known as Epigenetix, Inc. and changed its name to Constellation Pharmaceuticals, Inc. in March 2008. Constellation Pharmaceuticals, Inc. was founded in 2008 and is based in Cambridge, Massachusetts.