Immutep Announces Successful Meeting With FDA On Phase III Design In Non-Small Cell Lung Cancer; TACTI-004 Registrational Trial Will Enrol ~750 Patients Regardless Of PD-L1 Expression In Order To Address The Entire 1l NSCLC Market Eligible For Anti-PD-1 Therapy

• Final discussion with the FDA, successfully concluding the regulatory preparations for the TACTI-004 Phase III trial design to evaluate efti in combination with KEYTRUDA (pembrolizumab), MSD's anti-PD-1 therapy, and standard chemotherapy in first-line non-small cell lung cancer
• TACTI-004 registrational trial will enrol ~750 patients regardless of PD-L1 expression in order to address the entire 1L NSCLC market eligible for anti-PD-1 therapy

SYDNEY, AUSTRALIA, July 22, 2024 (GLOBE NEWSWIRE) -- Immutep Limited ((ASX: IMM, NASDAQ:IMMP) ("Immutep" or "the Company"), a clinical-stage biotechnology company developing novel LAG-3 immunotherapies for cancer and autoimmune disease, today announces that positive feedback has been received from the US Food and Drug Administration ("FDA") regarding the planned TACTI-004 Phase III trial of eftilagimod alfa ("efti") in combination with KEYTRUDA (pembrolizumab), MSD's anti-PD-1 therapy, and histology-based platinum doublet chemotherapy for the treatment of first-line metastatic non-small cell lung cancer (1L NSCLC), regardless of PD-L1 expression.

The FDA feedback from this Type C meeting, along with feedback previously received from the Paul-Ehrlich-Institut ("PEI") and the Spanish Agency for Medicines and Health Products ("AEMPS"), concludes the preparatory regulatory interactions for the design of this registrational trial. This marks a significant step forward to develop an effective treatment for non-squamous and squamous 1L NSCLC patients who have high, low, or no PD-L1 expression and are eligible for anti-PD-1 therapy.

The TACTI-004 Phase III trial, which will enrol ~750 patients, is based on the positive efficacy and safety data in 1L NSCLC generated from the TACTI-002 Phase II and INSIGHT-003 trials.