Immutep, Merck & Co. Enter Partnership

Immutep Limited has entered into a clinical trial collaboration and supply agreement with Merck & Co. to evaluate the combination of Immutep’s lead immunotherapy product candidate eftilagimod alpha ("efti" or "IMP321") with MSD's anti-PD-1 therapy KEYTRUDA® (pembrolizumab) in a new clinical trial that will evaluate the combination in several different solid tumors.

The planned Phase II clinical trial, referred to as TACTI-002 (Two ACTive Immunotherapies), will evaluate the safety and efficacy of this novel immunotherapy combination in patients with non-small cell lung cancer ("NSCLC"), head and neck cancer, or ovarian cancer. The TACTI-002 clinical trial will be a Phase II, Simon two-stage, non-comparative, open-label, single-arm, multicenter clinical study. Up to 120 patients across the three indications are planned to be treated in medical centers in Europe and the United States with the trial expected to commence in the second half of 2018.

"We are extremely pleased to be collaborating with MSD, one of the world’s leading immuno-oncology companies," said Marc Voigt, chief executive officer of Immutep. "This clinical trial will evaluate a novel combination of two complementary immuno-oncology treatments in three cancer indications simultaneously, which could lead to more rapid drug development subject to successful outcomes. The data generated thus far from our ongoing TACTI-mel clinical trial has supported our hypothesis that there is a compelling therapeutic synergy in administering efti in combination with another immuno-oncology treatment."

The trial combines two immuno-oncology treatments with complementary mechanisms of action, analogous to releasing the brakes and pushing the accelerator of the body’s immune system at two different positions in the cancer immunity cycle. Immutep’s efti is a first-in-class antigen presenting cell ("APC") activator which stimulates cancer-fighting T cells, while KEYTRUDA is an anti-PD-1 therapy that works by increasing the ability of the body’s immune system to help detect and fight tumor cells.

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