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     <dc:title xml:lang="fr">Cancers gastriques et œsogastriques surexprimant le récepteur HER2 : stratégie actuelle de prise en charge et perspectives de traitement</dc:title>
     <dcterms:alternative xml:lang="en">Gastric and esogastric cancers overexpressing the HER2 receptor: current management strategy and treatment prospects</dcterms:alternative>
     <dc:subject xml:lang="fr">Oncologie</dc:subject><dc:subject xml:lang="fr">cancer gastrique</dc:subject><dc:subject xml:lang="fr">estomac</dc:subject><dc:subject xml:lang="fr">jonction œsogastrique</dc:subject><dc:subject xml:lang="fr">surexpression</dc:subject><dc:subject xml:lang="fr">HER2</dc:subject><dc:subject xml:lang="fr">trastuzumab</dc:subject><dc:subject xml:lang="fr">trastruzumab-déruxtécan

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     <dc:subject xml:lang="en">Oncology</dc:subject><dc:subject xml:lang="en">gastric cancer</dc:subject><dc:subject xml:lang="en">esophageal junction</dc:subject><dc:subject xml:lang="en">overexpression</dc:subject><dc:subject xml:lang="en">HER2</dc:subject><dc:subject xml:lang="en">trastuzumab</dc:subject><dc:subject xml:lang="en">trastruzumab-deruxtecan

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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027413462">Estomac</tef:elementdEntree><tef:subdivision autoriteSource="Sudoc" type="subdivisionDeSujet" autoriteExterne="02722189X">Cancer</tef:subdivision><tef:subdivision autoriteSource="Sudoc" type="subdivisionDeSujet" autoriteExterne="027589838">Thérapeutique</tef:subdivision>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="069770662">Trastuzumab</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="128976675">Thérapie moléculaire ciblée</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="114356955">Jonction oesophago-gastrique </tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">Les adénocarcinomes gastriques représentent un enjeu majeur de santé publique, avec un pronostic souvent défavorable. Environ 15 à 20 % de ces tumeurs surexpriment le récepteur HER2, cible thérapeutique validée dans les formes métastatiques. L’introduction du trastuzumab a permis d’améliorer la prise en charge de ces patients, bien que la réponse thérapeutique reste variable et limitée par des mécanismes de résistance. De nouvelles approches sont en développement, notamment les anticorps conjugués, les inhibiteurs bispécifiques et les combinaisons avec l’immunothérapie. Cette thèse propose une synthèse des connaissances actuelles sur la prise en charge des cancers gastriques HER2-positifs, et discute les perspectives thérapeutiques émergentes dans une logique de médecine personnalisée.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">Gastric adenocarcinomas remain a major public health concern due to their high incidence and poor prognosis. Approximately 15–20% of these tumors overexpress the HER2 receptor, which has become a validated therapeutic target in advanced and metastatic disease. The introduction of trastuzumab has improved treatment outcomes in HER2-positive patients; however, therapeutic responses are heterogeneous and often limited by resistance mechanisms. Emerging strategies—including antibody-drug conjugates, bispecific antibodies, and immunotherapy combinations—are currently under investigation. This thesis provides an updated overview of current management approaches for HER2-positive gastric cancer and explores promising therapeutic perspectives in the context of personalized medicine.</dcterms:abstract>
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