Exhibit 99.1
ASX/Media Release
Immutep Announces Successful Meeting with FDA on Phase III Design
in Non-Small Cell Lung Cancer
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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 |
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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 – 22 July 2024 – 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.
“We are pleased with the FDA’s feedback as this allows us to successfully conclude our regulatory preparation for the TACTI-004 registrational trial. This represents a key milestone in our late-stage development process for efti centred on potentially driving a new standard of care globally in the treatment of non-small cell lung cancer. We hope to achieve this through efti in combination with KEYTRUDA, which has led to strong efficacy data with a favourable safety profile in 1L NSCLC patients regardless of PD-L1 expression,” stated Christian Mueller, Immutep’s SVP, Regulatory and Strategy.
KEYTRUDA® is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA.
TACTI-004 (Two ACTive Immunotherapies-004) Registrational Phase III Trial
Design
TACTI-004 will be a 1:1 randomized, double-blind, multinational, controlled clinical trial to evaluate
Immutep’s efti in combination with KEYTRUDA and standard chemotherapy compared to the standard-of-care, KEYTRUDA in combination with chemotherapy and placebo in first-line metastatic non-small cell lung cancer (NSCLC), regardless of PD-L1 expression. In this pivotal PD-L1 all comer trial, the dual primary endpoints
will be progression-free and overall survival with a prespecified futility boundary and a pre-planned interim analysis. The trial will be conducted globally and enrol approximately 750 NSCLC patients
(including both squamous and non-squamous subtypes).