BERKELEY, CA, USA I January 09, 2017 I Aduro Biotech, Inc. (Nasdaq:ADRO), a biopharmaceutical company with three distinct immunotherapy technologies, announced today a clinical collaboration with Merck (known as MSD outside the United States and Canada). The companies will investigate the combination of CRS-207, Aduro’s LADD (live, attenuated double-deleted) based immunotherapy, with Merck’s anti-PD-1 therapy KEYTRUDA® (pembrolizumab) for the treatment of gastric cancer.

“CRS-207 has demonstrated the ability to induce an anti-tumor immune response in clinical trials in other tumor types that over express the tumor antigen, mesothelin,” said Dirk G. Brockstedt, Ph.D., executive vice president of Research and Development at Aduro.  “Gastric cancer is an immune-sensitive mesothelin-expressing tumor where PD-1 checkpoint inhibitors have shown some activity. The combination of inducing an immune response through CRS-207, while simultaneously suppressing the cancer’s ability to evade the immune system through a PD-1 checkpoint inhibitor, has resulted in synergistic anti-tumor activity in pre-clinical studies. We aspire to reproduce this activity in the clinic in patients with gastric cancer.” 

The multicenter Phase 1 study, planned to begin in the first half of the year, will enroll patients with metastatic gastric cancer who have failed at least two prior therapies to receive the combination of CRS-207 and pembrolizumab.  

About LADD and CRS-207
LADD is Aduro’s proprietary platform of live, attenuated double-deleted Listeria monocytogenes strains that have been engineered to generate a potent innate immune response and to express tumor-associated antigens to induce tumor-specific T cell-mediated immunity.

CRS-207 is one of a family of product candidates based on Aduro’s LADD immunotherapy platform that has been engineered to express the tumor-associated antigen mesothelin, which is over-expressed in many cancers including mesothelioma and pancreatic, non-small cell lung, ovarian, endometrial and gastric cancers.

About Aduro
Aduro Biotech, Inc. is an immunotherapy company focused on the discovery, development and commercialization of therapies that transform the treatment of challenging diseases. Aduro’s technology platforms, which are designed to harness the body’s natural immune system, are being investigated in cancer indications and have the potential to expand into autoimmune and infectious diseases. Aduro’s LADD technology platform is based on proprietary attenuated strains of Listeria that have been engineered to express tumor-associated antigens to induce specific and targeted immune responses. This platform is being developed as a treatment for multiple indications, including ovarian, lung and prostate cancers, mesothelioma and glioblastoma. Additionally, a personalized form of LADD, or pLADD, is being developed utilizing tumor neoantigens that are specific to an individual patient’s tumor. Aduro’s STING Pathway Activator platform is designed to activate the intracellular STING receptor, resulting in a potent tumor-specific immune response. ADU-S100 is the first STING Pathway Activator compound to enter the clinic and is currently being evaluated in a Phase 1 study in patients with cutaneously accessible metastatic solid tumors or lymphomas. Aduro’s B-select monoclonal antibody platform includes a number of immune modulating assets in research and preclinical development. Aduro is collaborating with leading global pharmaceutical companies to expand its products and technology platforms. For more information, please visit www.aduro.com.

SOURCE: Aduro Biotech