Molecular Profile Detail

Profile Name ERBB2 Y772_A775dup
Gene Variant Detail

ERBB2 Y772_A775dup (gain of function)

Relevant Treatment Approaches HER inhibitor (Pan) HER2 Inhibitor

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
ERBB2 Y772_A775dup non-small cell lung carcinoma no benefit HER inhibitor (Pan) Dacomitinib Clinical Study Actionable In a retrospective study, Vizimpro (dacomitinib) treatment resulted in an objective response rate of 0% (0/13) in non-small cell lung cancer patients harboring ERBB2 (HER2) Y772_A775dup (reported as (A775_G776insYVMA) (PMID: 30527195). 30527195
ERBB2 Y772_A775dup lung cancer no benefit Gefitinib Preclinical Actionable In a preclinical study, bronchial epithelial cells expressing ERBB2 (HER2) Y772_A775dup (also referred to as A775_G776insYVMA) did not demonstrate sensitivity to Iressa (gefitinib) in culture (PMID: 26545934). 26545934
ERBB2 Y772_A775dup Advanced Solid Tumor resistant AZ5104 Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) were resistant to AZ5104 in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup lung adenocarcinoma predicted - sensitive HER inhibitor (Pan) Poziotinib Phase II Actionable In a Phase II trial, Poziotinib (HM781-36B) treatment resulted in 1 partial response, 1 stable disease, and 1 progressive disease in 3 patients with lung adenocarcinoma harboring ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) (PMID: 30149884; NCT02979821). 30149884
ERBB2 Y772_A775dup Advanced Solid Tumor sensitive HER2 Inhibitor Pyrotinib Preclinical - Cell culture Actionable In a preclinical study, Pyrotinib inhibited growth of transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup non-small cell lung carcinoma no benefit Erlotinib Clinical Study Actionable In a retrospective study, Tarceva (erlotinib) treatment resulted in an objective response rate of 0% (0/1) in non-small cell lung cancer patients harboring ERBB2 (HER2) Y772_A775dup (reported as (A775_G776insYVMA) (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor sensitive HER2 Inhibitor Neratinib Preclinical - Cell culture Actionable In a preclinical study, Nerlynx (neratinib) inhibited growth of transformed cells expressing ERBB2 (HER2) Y772_A775dup (also referred to as ERBB2 A775_G776insYVMA) in culture (PMID: 28363995). 28363995
ERBB2 Y772_A775dup Advanced Solid Tumor predicted - sensitive Ganetespib Preclinical - Cell culture Actionable In a preclinical study, Ganetespib inhibited growth of transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as reported as A775_G776insYVMA) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor decreased response HER inhibitor (Pan) Afatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) demonstrated decreased response to Gilotrif (afatinib) compared to Poziotinib (HM781-36B) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup lung adenocarcinoma conflicting HER inhibitor (Pan) Afatinib Clinical Study Actionable In a clinical study, a lung adenocarcinoma patient harboring ERBB2 Y772_A775dup (also referred to as A775_G776insYVMA and E740_A741insAYVM) achieved a partial response for 5 months following treatment with pulse Gilotrif (afatinib), however, a second patient harboring ERBB2 Y772_A775dup treated with pulse Gilotrif (afatinib) demonstrated progressive disease (PMID: 26964772). 26964772
ERBB2 Y772_A775dup Her2-receptor negative breast cancer predicted - sensitive HER2 Inhibitor Neratinib Phase II Actionable In a Phase II trial (SUMMIT), Nerlynx (neratinib) treatment resulted in complete response in one patient, and stable disease in 2 patient with Erbb2 (Her2) receptor negative (non-amplified) breast cancer harboring ERBB2 (HER2) Y772_A775dup (PMID: 29420467; NCT01953926). 29420467
ERBB2 Y772_A775dup lung cancer sensitive HER inhibitor (Pan) Poziotinib Preclinical Actionable In a preclinical study, Poziotinib (HM781-36B) induced regression of lung tumors in mouse models harboring ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA), with no signs of progression at 12 weeks (PMID: 29686424). 29686424
ERBB2 Y772_A775dup Advanced Solid Tumor sensitive HER inhibitor (Pan) Poziotinib Preclinical - Cell culture Actionable In a preclinical study, Poziotinib (HM781-36B) inhibited ERBB2 (HER2) phosphorylation and growth of a transformed cell line expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) in culture (PMID: 29686424). 29686424
ERBB2 Y772_A775dup Advanced Solid Tumor resistant HER2 Inhibitor Tucatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) were resistant to Tucatinib (ARRY-380) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor predicted - sensitive Luminespib Preclinical - Cell culture Actionable In a preclinical study, Luminespib (AUY922) inhibited growth of transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as reported as A775_G776insYVMA) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor resistant Osimertinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) were resistant to Tagrisso (osimertinib) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor decreased response HER inhibitor (Pan) Dacomitinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) demonstrated decreased response to Vizimpro (dacomitinib) compared to Poziotinib (HM781-36B) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor resistant Erlotinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) were resistant to Tarceva (erlotinib) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup Advanced Solid Tumor resistant Lapatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing ERBB2 (HER2) Y772_A775dup (reported as A775_G776insYVMA) were resistant to Tykerb (lapatinib) in culture (PMID: 30527195). 30527195
ERBB2 Y772_A775dup non-small cell lung carcinoma no benefit HER2 Inhibitor Neratinib Phase II Actionable In a Phase II trial (SUMMIT), Nerlynx (neratinib) treatment resulted in stable disease in 5 patients and progressive disease in 4 patients with non-small cell lung cancer harboring ERBB2 (HER2) Y772_A775dup (PMID: 29420467; NCT01953926). 29420467
ERBB2 Y772_A775dup non-small cell lung carcinoma predicted - sensitive HER inhibitor (Pan) Poziotinib Clinical Study Actionable In a retrospective study, Poziotinib (HM781-36B) treatment resulted in an objective response rate of 33% (1/3) in non-small cell lung cancer patients harboring ERBB2 (HER2) Y772_A775dup (reported as (A775_G776insYVMA) (PMID: 30527195). 30527195
ERBB2 Y772_A775dup lung cancer sensitive HER inhibitor (Pan) Afatinib Preclinical Actionable In a preclinical study, Gilotrif (afatinib) inhibited Erbb2 (Her2) phosphorylation and downstream signaling in bronchial epithelial cells expressing ERBB2 (HER2) Y772_A775dup (also referred to as A775_G776insYVMA) in culture (PMID: 26545934). 26545934
ERBB2 Y772_A775dup urinary bladder cancer predicted - resistant HER2 Inhibitor Neratinib Phase II Actionable In a Phase II trial (SUMMIT), Nerlynx (neratinib) treatment resulted in progressive disease with a progression-free survival of 1.7 months in a patients with bladder cancer harboring ERBB2 (HER2) Y722_A775dup (PMID: 29420467; NCT01953926). 29420467
ERBB2 Y772_A775dup non-small cell lung carcinoma predicted - sensitive HER inhibitor (Pan) Afatinib Clinical Study Actionable In a retrospective study, Gilotrif (afatinib) treatment resulted in an objective response rate of 16% (5/31) in non-small cell lung cancer patients harboring ERBB2 (HER2) Y772_A775dup (reported as (A775_G776insYVMA) (PMID: 30527195). 30527195
Clinical Trial Phase Therapies Title Recruitment Status
NCT02673398 Phase II Neratinib Neratinib in Treating Older Patients With Locally Advanced or Metastatic HER2-Positive Breast Cancer Recruiting
NCT02675829 Phase II trastuzumab emtansine Trial of Ado-Trastuzumab Emtansine for Patients With HER2 Amplified or Mutant Cancers Active, not recruiting