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    Association details:
    Biomarker:IDO1 expression
    Cancer:Melanoma
    Drug:Opdivo (nivolumab) (PD1 inhibitor)
    Direction:Sensitive
    Evidence:
    Evidence Level:
    Sensitive: C2 – Inclusion Criteria
    Source:
    clinicaltrials.gov
    Title:

    An Open Label Phase II Study Combining Nivolumab and Celecoxib in Patients With Advanced " Cold " Solid Tumors

    Excerpt:
    ...In order to include only IDO1 positive (≥5% expression of tumor cells) and non T-cell infiltrated tumors (<1% T cells infiltrating the tumor bed)...
    Trial ID:
    NICE-COMBO
    Evidence Level:
    Sensitive: C3 – Early Trials
    Source:
    SITC 2019
    Title:

    Identification of mRNA signatures that predict response to immunotherapy in melanoma patients

    Published date:
    11/08/2019
    Excerpt:
    Among other genes, IDO1 mRNA was also found to be significantly associated with longer PFS (P < 0.01, False discovery rate (FDR) = 0.18) and OS (P < 0.01, FDR = 0.052).