Immutep Announces European Patent Grant for LAG525 Antibody


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SYDNEY, Australia, Nov. 14, 2019 (GLOBE NEWSWIRE) -- Immutep Limited ((ASX: IMM, NASDAQ:IMMP) ("Immutep" or "the Company") is pleased to announce the grant of patent no. 3116909 entitled "Antibody molecules to LAG-3 and uses thereof" by the European Patent Office.

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The claims of the patent are directed to LAG525, and to the use of LAG525 in the treatment of cancer and infectious disease. LAG525 is a humanised form of Immutep's IMP701 antibody that was originally developed by Immutep S.A. (now Immutep S.A.S.), a wholly owned subsidiary of the Company. The patent is co-owned by Novartis AG and Immutep S.A.S. and will expire on 13 March 2035. 

About IMP701 and LAG525
IMP701 is a therapeutic antibody originally developed by Immutep S.A. 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 prevent 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 and don't address the Treg pathway.

Rights to the development and commercialisation of IMP701 were licensed to CoStim Pharmaceuticals in 2012, which was subsequently acquired by Novartis in 2014.

LAG525, a humanised form of IMP701 is currently being evaluated in five Phase I and/or Phase II clinical trials, in combination with Novartis' PD-1 inhibitor spartalizumab for the treatment of various cancers. Novartis has full responsibility for the continued development of the antibody program and Immutep is eligible to receive development-based milestone payments and royalties on sales following commercialisation of the antibody.

Further information on the clinical studies may be obtained at:


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https://clinicaltrials.gov/ct2/show/NCT03365791
https://clinicaltrials.gov/ct2/show/NCT03499899
https://clinicaltrials.gov/ct2/show/NCT02460224
https://clinicaltrials.gov/ct2/show/NCT03742349
https://clinicaltrials.gov/ct2/show/NCT03484923

About Immutep

Immutep is listed on the Australian Securities Exchange (IMM), and on the NASDAQ (IMMP) in the United States.

Further information can be found on the Company's website www.immutep.com or by contacting:

Australian Investors/Media:
Matthew Gregorowski, Citadel-MAGNUS
+61 2 8234 0105; mgregorowski@citadelmagnus.com

U.S. Media:
Garth Russell, LifeSci Advisors
+1 (646) 876-3613; garth@lifesciadvisors.com


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New research shows the biggest crypto buyers are back. And this time? They could hold for the possibility that Bitcoin will surpass $100,000 in 2024. You don’t want to miss the next massive crypto bull run like we saw in 2020 and 2021. To know exactly what’s going on and what to buy… Get Access To Benzinga’s Best Crypto Research and Investments For Only $1.


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