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  • ||||||||||  ciforadenant (CPI-444) / Corvus Pharma
    Clinical, Journal:  Lessons from the A2A Adenosine Receptor Antagonist-Enabled Tumor Regression and Survival in Patients with Treatment-Refractory Renal Cell Cancer. (Pubmed Central) -  Jul 9, 2020   
    In this issue of Cancer Discovery, Fong and colleagues describe the encouraging observations of tumor regression, disease control, and survival of patients with otherwise refractory renal cell cancer with progressive disease after treatment with the conceptually novel oral antagonist of the A2A adenosine receptor (A2AR), ciforadenant. A2AR antagonists may represent the until now missing but critically important part of more effective immunotherapies of cancer, because they prevent the inhibition of tumor-reactive T and natural killer cells by blocking the immunosuppressive hypoxia-A2A-adenosinergic signaling, which represents an emerging immunosuppressive hallmark of tumors that are the most resistant to therapies.See related article by Fong et al., p. 40.
  • ||||||||||  ciforadenant (CPI-444) / Corvus Pharma
    Preclinical, Journal, PD(L)-1 Biomarker, IO Biomarker:  A2AR Antagonism with CPI-444 Induces Anti-Tumor Responses and Augments Efficacy to Anti-PD-(L)1 and Anti-CTLA-4 in Preclinical Models. (Pubmed Central) -  Aug 30, 2019   
    The antitumor efficacy of CPI-444 with and without anti-PD-L1 was associated with increased T-cell activation, a compensatory increase in CD73 expression, and induction of a Th1 gene expression signature consistent with immune activation. These results suggest a broad role for adenosine-mediated immunosuppression in tumors and justify the further evaluation of CPI-444 as a therapeutic agent in patients with solid tumors.