PureTech Orphan Status for Pancreatic Cancer Drug
FDA has granted PureTech Health an orphan drug designation for LYT-200 and its use in treating pancreatic cancer. The IgG4 monoclonal antibody is designed to target an immunosuppressive protein, galectin-9, for the potential treatment of solid tumors, including pancreatic ductal adenocarcinoma, colorectal cancer and cholangiocarcinoma, according to the company. LYT-200 is currently being evaluated in the first stage of an adaptive Phase 1/2 trial, with topline results expected in the first half of next year.
The company says the designation was based on preclinical data “demonstrating high expression of galectin-9 across breast cancer, pancreatic and cholangiocarcinoma samples and found that the highest levels of galectin-9 correlated with shorter time to disease relapse and poor survival. These data suggest that galectin-9 could be significant both as a therapeutic target for a range of cancers and as a cancer biomarker.” Preclinical and patient-derived organoid tumor models also showed the potential efficacy of LYT-200 and the importance of galectin-9 as a target, it adds.