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Ref Type Journal Article
PMID (29313813)
Authors Hotta K, Aoe K, Kozuki T, Ohashi K, Ninomiya K, Ichihara E, Kubo T, Ninomiya T, Chikamori K, Harada D, Nogami N, Hirata T, Hinotsu S, Toyooka S, Kiura K
Title A Phase II Study of Trastuzumab Emtansine in HER2-Positive Non-Small Cell Lung Cancer.
Journal Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer
Vol 13
Issue 2
Date 2018 02
URL
Abstract Text Trastuzumab emtansine (T-DM1), an anti-erb-b2 receptor tyrosine kinase 2 (HER2) antibody-drug conjugate, has been shown to significantly improve survival in HER2-positive breast cancer. We report a phase II trial of T-DM1 monotherapy in relapsed NSCLC with documented HER2 positivity (an immunohistochemistry [IHC] score of 3+, both an IHC score of 2+ and fluorescence in situ hybridization positivity, or exon 20 mutation). This study was terminated early because of limited efficacy. The demographic characteristics in the 15 assessable patients were as follows: median age, 67 years; male sex, 47%; performance status of 0 to 1, 80%; HER2 status IHC 3+, 33%; HER status IHC 2+/fluorescence in situ hybridization-positive, 20%; and exon 20 mutation, 47%. The median number of delivered cycles was 3 (range 1-11). One patient achieved a partial response with an objective response rate of 6.7% (90% confidence interval: 0.2-32.0). With a median follow-up time of 9.2 months, the median progression-free survival time and median survival time were 2.0 and 10.9 months, respectively. Grade 3 or 4 adverse events included thrombocytopenia (40%) and hepatotoxicity (20%) without any treatment-related deaths. T-DM1 had a limited efficacy for HER2-positive NSCLC in our cohort. Applying the concept of precision medicine to tumors appears challenging; thus, additional molecular approaches are warranted.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References