Immutep Granted Japanese Patent for Eftilagimod Alpha, a Soluble Lag-3 Protein, in Combination with a PD-1 Pathway Inhibitor

Rhea-AI Summary

Immutep Limited (ASX: IMM; NASDAQ: IMMP) has announced the granting of a new patent by the Japanese Patent Office, enhancing its intellectual property portfolio for eftilagimod alpha (efti), a LAG-3 fusion protein. This patent protects therapeutic combinations of efti with anti-PD-(L)1 antibodies, alongside specific claims for various approved combinations. Following similar patents granted globally, this strengthens Immutep's position in the biotech sector. The patent will expire on January 8, 2036.

CEO Marc Voigt emphasized the significance of this development in conjunction with promising data from recent clinical trials.

Positive

• New patent granted for efti in Japan, broadening IP protection.
• Strengthens global patent estate, enhancing strategic options for Immutep.
• Positive data reported from TACTI-002 trial in three cancer indications.

Negative

• None.

SYDNEY, AUSTRALIA, Aug. 30, 2022 (GLOBE NEWSWIRE) -- Immutep Limited (ASX: IMM; NASDAQ: IMMP) ("Immutep” or “the Company”), a biotechnology company developing novel LAG-3 related immunotherapy treatments for cancer and autoimmune disease, is pleased to announce the grant of a new patent (number 7116547) entitled “Combined Preparations for the Treatment of Cancer or Infection” by the Japanese Patent Office.

This new Japanese patent follows the grant of the corresponding Australian, European, United States and Chinese patents announced in 2018 through 2022.

The claims of the new patent protect Immutep’s intellectual property relating to combined therapeutic preparations comprising (a) its lead active immunotherapy candidate eftilagimod alpha (“efti” or “IMP321”), which is a LAG-3 fusion protein (LAG-3Ig), and (b) an anti-PD-(L)1 antibody. The claims are also directed to related methods of use in the treatment of cancer and infection.

In addition to broader style claims, the granted claims include narrower claims drawn to specific combinations of efti with various approved PD-(L)1 antibodies.

In all, the claims provide comprehensive coverage of both combination products and combination therapies comprising efti and an anti-PD-(L)1 antibody.

The patent expiry date is 8 January 2036.

Immutep CEO, Marc Voigt, noted: “We are pleased to see continued progress in building our global patent estate around efti. This is especially meaningful when coupled with the very promising data we have reported from TACTI-002 in three cancer indications, along with the initiation of TACTI-003 in the past 12 months. This Japanese patent, along with the equivalent patents granted in other key global markets, underpin the investments we have made to develop this unique candidate and give Immutep important strategic options.”

About Immutep
Immutep is a globally active biotechnology company that is a leader in the development of LAG-3 related immunotherapeutic products for the treatment of cancer and autoimmune disease. Immutep is dedicated to leveraging its technology and expertise to bring innovative treatment options to market for patients and to maximise value to shareholders.

Immutep’s current lead product candidate is eftilagimod alpha (efti or IMP321), a soluble LAG-3 fusion protein (LAG-3Ig), which is a first-in-class antigen presenting cell (APC) activator being explored in cancer. Immutep is also developing an agonist of LAG-3 (IMP761) for autoimmune disease.

Additional LAG-3 products, including antibodies for immune response modulation, are being developed by Immutep’s large pharmaceutical partners.

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:
Catherine Strong, Citadel-MAGNUS
+61 (0)406 759 268; cstrong@citadelmagnus.com

U.S. Media:
Tim McCarthy, LifeSci Advisors
+1 (212) 915.2564; tim@lifesciadvisors.com

FAQ

What is the significance of the new patent granted to Immutep (IMMP) in Japan?

The new patent grants Immutep protection for its lead candidate efti in combination with anti-PD-(L)1 antibodies, enhancing its intellectual property and market positioning.

When does the new patent for Immutep's cancer treatment expire?

The patent expires on January 8, 2036.

What is the lead product candidate of Immutep (IMMP)?

Immutep's lead product candidate is eftilagimod alpha (efti), a LAG-3 fusion protein used in cancer treatments.

What clinical trial results support Immutep’s (IMMP) new patent announcement?

The announcement is supported by promising data from the TACTI-002 clinical trial in three cancer indications.

How does the new patent impact Immutep's market strategy?

The new patent strengthens Immutep’s global patent estate and provides strategic options for future collaborations and product development.