Immutep Ltd.’s lead candidate, eftilagimod (IMP-321, efti), a lymphocyte activation gene-3 (LAG-3) fusion protein and major histocompatibility complex class II agonist, delivered an overall survival benefit of 35.5 months in the TACTI-002 trial that combined efti with Merck & Co. Inc.’s Keytruda (pembrolizumab) as first-line treatment of non-small-cell lung cancer (NSCLC) at two years follow-up.