Neoadjuvant Pembrolizumab is Active in Surgically Resected Head and Neck Cancer

Approximately 60% of head and neck squamous cell carcinoma (HNSCC) patients present with locally advanced disease. Surgical candidates often receive postoperative radiation and cisplatin if they have high-risk pathological features. Despite intensive therapy, up to 50% of patients will suffer relapse. Therefore, improved treatment modalities are desperately needed. The checkpoint inhibitor, programmed death-ligand 1 (PD-L1), is upregulated in HNSCC and treatment with anti-PD-1 inhibitor (pembrolizumab) was shown to decrease tumor burden in patients with recurrent/metastatic HNSCC.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research

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Conclusions: In OSCC, very low preoperative NLR values have a negative prognostic impact on survival and recurrence, similarly to high ratios. ENE and perineural spread are the most important clinical-pathologic prognosticators. Introduction Oral squamous cell carcinoma (OSCC) accounts for more than 95% of oral tumors and is the eighth most frequent cancer worldwide, with an estimated incidence of 640,000 new cases per year (1). Survival of OSCC has slightly improved over the last 30 years, probably as a consequence of multimodal treatment spreading. However, intensified therapeutic regimens can result in signific...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusion: Fat fraction on MRI corresponded to fat content on histology and therefore contributes to lesion characterization. Measurement repeatability was excellent for ADC; this parameter increased significantly post-radiotherapy even in disease categorized as stable by size criteria, and corresponded to cellularity on histology. ADC can be utilized for characterizing and assessing response in heterogeneous retroperitoneal sarcomas. Introduction Soft-tissue sarcomas are often highly heterogeneous tumors with variable components that can include cellular tumor, fat, necrosis, and cystic change. In many soft-tissue ...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusions In the span of a very short time—less than a decade—robotic head and neck surgery has transformed the management of the head and neck cancer, and it seems clear that the future of treatment for these cancers lies in a multimodal approach in which TORS is likely to play an important role. Nevertheless, it is important to keep in mind that the current indications for TORS are limited and long-term data on the safety and oncological outcomes are needed to better understand the true role of TORS in treatment of head and neck cancer. Nonetheless, the emergence of ever more advanced robotic instruments i...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Immune evasion is a sine qua non for cancer development. Mechanisms of resistance to immune modulating therapeutics in cancer are poorly understood. Less than 20% of patients with HNSCC have a lasting response to cetuximab. We hypothesized that acquired somatic alterations may provide a mechanism of immune evasion in cetuximab failure. Here, using a novel cohort of HNSCC patients treated with neoadjuvant cetuximab, we investigated mechanisms of immune escape from cetuximab therapy.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
Condition:   Head and Neck Squamous Cell Carcinoma Interventions:   Drug: Palbociclib;   Drug: Cetuximab;   Drug: Cisplatin;   Radiation: Intensity-Modulated Radiation Therapy;   Procedure: Tumor biopsy;   Procedure: Peripheral blood draw;   Other: European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 Sponsors:   Washington University School of Medicine;   Pfizer Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
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