April 7, 2021
Immutep Limited, a biotechnology company developing novel immunotherapy treatments for cancer, infectious disease, and autoimmune disease, is pleased to announce the grant of patent number EP3317301 entitled “Combination therapies comprising antibody molecules to LAG-3” by the European Patent Office.
The claims of EP3317301 are directed to embodiments of LAG525, a humanized form of Immutep’s IMP701 antibody which is out-licensed to Novartis AG. In particular, the claims of the patent are directed to compositions comprising LAG525 and spartalizumab, an anti-PD-1 antibody molecule, and related methods of use of the combination in the treatment of cancer.
The patent is co-owned by Novartis AG and Immutep S.A.S. and will expire on 28 July 2036.
About IMP701 and LAG525
IMP701 is a therapeutic antibody originally developed by Immutep S.A. (now Immutep S.A.S.) to target LAG-3. This antagonist antibody plays a role in controlling the signalling pathways in both effector T cells and regulatory T cells (Treg). The antibody works to both activate effector T cells (by blocking inhibitory signals that would otherwise switch them off) and at the same time inhibit Treg function that normally prevents T cells from responding to antigen stimulation. The antibody, therefore, removes two brakes that prevent the immune system from responding to and killing cancer cells. In contrast, some other checkpoint antibodies in development target only the effector T cell pathway.
Rights to the development and commercialization of IMP701 are exclusively licensed to Novartis.
LAG525, a humanized form of IMP701 is being evaluated by Novartis in several Phase I and/or Phase II clinical trials in combination with Novartis’ PD-1 inhibitor spartalizumab for the treatment of certain cancer(s). Novartis has full responsibility for the continued development of the LAG-3 antibody program and Immutep is eligible to receive development-based milestone payments and sales-based royalties.
Further information on the clinical studies may be obtained at: