Immutep Limited recently announced a new collaboration and supply agreement with Merck KGaA, Darmstadt, Germany, for a Phase 1/2a clinical trial in patients with solid tumors, called INSIGHT-005. The trial will evaluate the feasibility, safety, and efficacy of Immutep's lead product candidate, eftilagimod alpha (efti or IMP321), when given in combination with bintrafusp alfa (M7824), an investigational bifunctional fusion protein immunotherapy being jointly developed by Merck, Darmstadt, Germany, and GlaxoSmithKline. Bintrafusp alfa aims to block two immunosuppressive pathways, TGF-β and PD-L1, while efti activates antigen presenting cells, via the LAG-3 – MHC II pathway. "Through INSIGHT-005, we plan to explore the effect of releasing the brakes and pushing the accelerator of the body's immune system in three different positions of the cancer immunity cycle. The new trial builds on our knowledge and the encouraging data from the INSIGHT trial of efti, also in solid tumours.