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Prolonged Response to HER2-Directed Therapy in Three Patients with HER2-Amplified Metastatic Carcinoma of the Biliary System: Case Study and Review of the Literature.
May, Michael; Raufi, Alexander G; Sadeghi, Sina; Chen, Karen; Iuga, Alina; Sun, Yu; Ahmed, Firas; Bates, Susan; Manji, Gulam A.
Afiliación
  • May M; Division of Hematology and Oncology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA.
  • Raufi AG; Division of Hematology and Oncology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA.
  • Sadeghi S; Division of Hematology-Oncology, Lifespan Cancer Institute, Warren-Alpert Medical School of Brown University, Providence, Rhode Island, USA.
  • Chen K; Division of Hematology and Oncology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA.
  • Iuga A; Division of Hematology and Oncology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA.
  • Sun Y; Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA.
  • Ahmed F; Department of Pathology, Columbia University Medical Center, New York, New York, USA.
  • Bates S; Department of Radiology, Columbia University Medical Center, New York, New York, USA.
  • Manji GA; Division of Hematology and Oncology, Columbia University Irving Medical Center and New York Presbyterian Hospital, New York, New York, USA.
Oncologist ; 26(8): 640-646, 2021 08.
Article en En | MEDLINE | ID: mdl-33896096
HER2 amplification, which results in overexpression of the receptor tyrosine kinase HER2, has been described in a wide variety of malignancies. HER2-targeting agents have been incorporated into the treatment paradigms for HER2-overexpressing breast and gastric cancer. More recently, these agents have shown promise in other gastrointestinal malignancies, such as colon cancer and biliary tract tumors. This study discusses two patients with gallbladder carcinoma and a third with ampullary carcinoma who were able to achieve marked responses to HER2-directed therapy. These cases underscore the importance of molecular analysis for HER2 amplification/HER2 overexpression, irrespective of tumor histology, and highlight a need for further investigation of HER2-directed therapy beyond breast and gastroesophageal cancers. KEY POINTS: Current guidelines recommend molecular assessment for HER2 overexpression exclusively in breast and gastric adenocarcinoma. The focus of this report is on three cases (two biliary tract and one ampullary carcinoma) in which amplification of HER2 or overexpression of HER2 was detected and treatment with HER2-directed therapy resulted in robust responses. These cases exemplify responsiveness of non-breast/gastric histologies to HER2-directed therapies, highlighting several promising new settings for these agents. Testing for amplification of HER2 or overexpression of HER2 should be considered especially in rare diseases with limited treatment options.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Gástricas / Sistema Biliar / Neoplasias del Sistema Biliar / Adenocarcinoma Tipo de estudio: Guideline Límite: Humans Idioma: En Revista: Oncologist Asunto de la revista: NEOPLASIAS Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Gástricas / Sistema Biliar / Neoplasias del Sistema Biliar / Adenocarcinoma Tipo de estudio: Guideline Límite: Humans Idioma: En Revista: Oncologist Asunto de la revista: NEOPLASIAS Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido