Immutep Limited, a late-stage biotechnology company, engages in developing novel LAG-3 related immunotherapies for cancer and autoimmune diseases in Australia. Its lead product candidate is the eftilagimod alpha (efti or IMP321), a soluble LAG-3lg fusion based, which is in clinical development for the treatment of different types of cancers. The company's product pipeline also includes TACTI-004, which is in phase III clinical trial for the treatment of first line non-small cell lung cancer (1L NSCLC); TACTI-003, which is in phase IIb clinical trial to treat first line head and neck squamous cell carcinoma (HNSCC); TACTI-002, which in phase II trial for the treatment NSCLC and HNSCC; AIPAC-003, which is in phase II/III clinical trial to treat metatastic breast cancer; and EFTISARC-NEO, which is in phase II clinical trial for the treatment of soft tissue sarcoma. In addition, it develops INSIGHT-003, which is in phase I to treat 1L NSCLC and solid tumors; INSIGHT-005, which is in phase I to treat metastatic urothelial cancer; IMP761, which is in preclinical trial to treat autoimmune disease; and IMP731 and IMP701 which is in clinical development. Further, the company develops LAG525, which is in phase II clinical trial to treat solid tumors and blood cancer, triple negative breast cancer, and melanoma; and in phase I to treat triple negative breast cancer. Immutep has collaboration with Merck & Co., Inc., GlaxoSmithKline, EOC Pharma, Novartis, and Laboratory Corporation of America Holdings. The company was formerly known as Prima BioMed Ltd and changed its name to Immutep Limited in November 2017. The company was incorporated in 1987 and is based in Sydney, Australia.