Immutep has a pipeline of four LAG-3 related product candidates: eftilagimod alpha (IMP321) for cancer chemo-immunotherapy and immunotherapy-immunotherapy combinations, two partnered products IMP731 (GSK) and IMP701 (Novartis), as well as IMP761 for autoimmune diseases.
Immutep has three promising candidates in clinical trials and one preclinical asset, all based on Lymphocyte activation gene-3, LAG-3 (one partnered with GSK and a second partnered with Novartis). Lead in-house LAG-3 product, eftilagimod alpha (efti), is being developed in metastatic breast cancer combined with chemo (211 of 226 patients recruited in randomised Phase IIb as of April 2019, topline PFS data expected Q419/Q120) and in melanoma in combination with Keytruda (61% exploratory response rate from start of Keytruda monotherapy screening in three dose-finding cohorts, 3/6 (50%) responders in an additional cohort). Novartis and GSK are progressing clinical trials of partnered LAG-3 programmes: GSK has announced ulcerative colitis as lead indication; Novartis has five ongoing Phase I/II studies with LAG525. Immutep is collaborating with Merck & Co (MSD) in a study of efti plus Keytruda in lung and head and neck cancers (first data H219). A trial of efti plus Bavencio in collaboration with Merck KGaA/Pfizer will commence Q219.
Immunotherapies are among the most promising class of products for cancer and autoimmune diseases. The LAG-3 products are potentially first-in-class, each with distinct mechanisms and applications.