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Bristol-Myers Squibb, Celldex Therapeutics to collaborate

Thursday, May 15, 2014

Bristol-Myers Squibb and Celldex Therapeutics have entered into a clinical trial collaboration to evaluate the safety, tolerability and preliminary efficacy of nivolumab, Bristol-Myers Squibb’s investigational PD-1 immune checkpoint inhibitor, and varlilumab, Celldex’s CD27 targeting investigational antibody in a phase I/II study.

Multiple tumor types will be explored in the study, which could potentially include non-small cell lung cancer, metastatic melanoma, ovarian, colorectal and squamous cell head and neck cancers.

Nivolumab and varlilumab are part of a new class of cancer treatments known as immunotherapies, which are designed to harness the body’s own immune system to fight cancer through separate yet complementary mechanisms of action that result in T-cell mediated destruction of cancer cells. Preclinical data suggest the combination of these two mechanisms may enhance anti-tumor immune response compared to either agent alone.

“Celldex believes the future of immunotherapy lies in combination regimens that further unlock the power of the immune system to deliver the greatest benefit to the largest population of patients possible,” said Anthony Marucci, president and CEO of Celldex Therapeutics. “Based on our clinical data and preclinical models for both programs, we think the combination of varlilumab and nivolumab could play an important role in maximizing the body’s immune response to cancer.”

Bristol-Myers Squibb will make a one-time payment of $5 million to Celldex, and the companies will share development costs. Celldex will be responsible for conducting the phase I/II study, which is expected to begin in the fourth quarter of 2014. Additionally, the parties have re-structured an existing agreement between Celldex and Medarex related to Celldex’s CD27 program, and waived certain future milestone payments and reduced future royalty rates that would have been due from Celldex to Medarex. Medarex was acquired by Bristol-Myers Squibb in September of 2009. The companies will work exclusively with each other to explore anti-PD-1 antagonist antibody and anti-CD27 agonist antibody combination regimens. Bristol-Myers Squibb will have a time-limited right of first negotiation if Celldex wishes to out-license varlilumab.

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