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A robust response to combination immune checkpoint inhibitor therapy in HPV-related small cell cancer: a case report
Won Jin Ho1, Lisa Rooper2, Sarah Sagorsky3
1Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans St, CRB1 Rm#186, Baltimore, MD, 21287, USA.
Background:
Human papillomavirus-related small cell carcinoma of the head and neck is an extremely rare, aggressive subtype with poor outcomes. Therapeutic options are limited and are largely adopted from small cell lung cancer treatment paradigms.
Case Presentation:
This report describes a 69-year old male who was diagnosed of HPV-related oropharyngeal cancer with mixed small cell and squamous cell pathology which was clinically aggressive and progressed through multimodal platinum-based therapies. Upon manifestation of worsening metastatic disease, the patient was initiated on a combination of ipilimumab and nivolumab. Within 2 months of starting immunotherapy, a robust partial response was observed. During the treatment course, the patient developed immune-related adverse effects including new diabetes mellitus, colitis, and hypothyroidism. The disease-specific survival was 26 months.
Conclusion:
Combination immunotherapy may be an attractive option for HPV-related small cell head and neck cancers resistant to other treatment modalities and thus warrants further evaluation.
Insights
Human papillomavirus-related small cell carcinoma of the head and neck is rare and aggressive. Combination immunotherapy (ipilimumab and nivolumab) showed a partial response in a patient with advanced disease.
Area of Science:
- Oncology
- Immunotherapy
- Head and Neck Cancer
Background:
- Human papillomavirus (HPV)-related small cell carcinoma of the head and neck is an extremely rare and aggressive malignancy.
- Treatment options are limited, often relying on paradigms from small cell lung cancer.
- This subtype is associated with poor patient outcomes.
Observation:
- A 69-year-old male with aggressive HPV-related oropharyngeal cancer (mixed small cell and squamous cell) progressed despite platinum-based therapies.
- The patient received combination ipilimumab and nivolumab for worsening metastatic disease.
Findings:
- A partial response was observed within 2 months of initiating combination immunotherapy.
- The patient experienced immune-related adverse effects, including new-onset diabetes mellitus, colitis, and hypothyroidism.
- Disease-specific survival reached 26 months.
Implications:
- Combination immunotherapy presents a potential treatment strategy for refractory HPV-related head and neck small cell carcinomas.
- Further clinical evaluation of this immunotherapy approach is warranted for this rare cancer subtype.
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