Molecular Profile Detail

Profile Name ARID1A loss
Gene Variant Detail

ARID1A loss (loss of function)

Relevant Treatment Approaches EZH2 inhibitor PARP Inhibitor (Pan) PARP-1 Inhibitor

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
ARID1A loss colon cancer predicted - sensitive unspecified PD-L1 antibody Preclinical - Cell line xenograft Actionable In a preclinical study, ARID1A-deficient colon cancer xenograft models demonstrated an increased response to treatment with an anti-PD-L1 antibody compared to controls (PMID: 29736026). 29736026
ARID1A loss ovarian cancer predicted - sensitive unspecified PD-L1 antibody Preclinical Actionable In a preclinical study, an ARID1A-deficient orthotopic ovarian cancer mouse model treated with a PD-L1 antibody demonstrated improved survival and greater decreased tumor volume compared to those treated with control (PMID: 29736026). 29736026
ARID1A loss Her2-receptor positive breast cancer resistant Trastuzumab Preclinical - Cell culture Actionable In a preclinical study, ERBB2 (HER2) positive breast cancer cells with ARID1A loss demonstrated resistance to Herceptin (trastuzumab) in culture (PMID: 27172896). 27172896
ARID1A loss ovarian clear cell carcinoma predicted - sensitive JQ1 Preclinical - Cell culture Actionable In a preclinical study, knockout of ARID1A in ovarian clear cell carcinoma cell lines resulted in increased sensitivity to growth inhibition by JQ1 compared to cells with wild-type ARID1A in culture (PMID: 29760405). 29760405
ARID1A loss Her2-receptor positive breast cancer resistant AZD8055 Preclinical - Cell culture Actionable In a preclinical study, ERBB2 (HER2) positive breast cancer cells with ARID1A loss demonstrated resistance to AZD8055 in culture (PMID: 27172896). 27172896
ARID1A loss breast cancer sensitive AZD8055 + MK2206 Preclinical - Cell culture Actionable In a preclinical study, breast cancer cells with loss of ARID1A demonstrated restored sensitivity to AZD8055 when additionally treated with MK2206 in culture (PMID: 27172896). 27172896
Clinical Trial Phase Therapies Title Recruitment Status