Personalized Medicine Approach for an Exceptional Response to Multiple-recurrent and Metastatic HER2-positive Oropharyngeal Squamous Cell Carcinoma

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Abstract

Introduction:

Advanced stage squamous cell carcinoma of the head and neck carries an overall poor prognosis, and survivorship gains have remained relatively stagnant compared to other malignancies due to its complex tumor biology and lack of proven effective targeting agents.

Methods:

We present a case of an exceptional responder to molecular-targeted therapy for metastatic oropharyngeal squamous cell carcinoma using a chemotherapeutic agent FDA approved for breast cancer and targeting the HER2/Neu receptor in order to discuss the larger clinical implications.

Results:

The National Cancer Institute (NCI) has recently instituted the Exceptional Responders Initiative in order to identify such patients with unexpected outcomes in order to expedite the development of additional targeted therapies. This case illustrates the opportunity for cure using targeted oncogene identification in a scenario of recurrent squamous cell carcinoma with lung metastasis typically considered fatal.

Conclusions:

Molecular tumor analysis is an infrequently utilized tool in head and neck squamous cell carcinoma; however, as understanding of biologic mechanisms improves, additional molecular targets will become available and expand treatment opportunities such as HER2/Neu targeting. The Exceptional Responders Initiative is a unique strategy with potential to expedite progress.

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