Active clinical trials for "Carcinoma, Squamous Cell"

The goal of this laboratory research study is to learn about symptoms and activity levels of patients with OPSCC that receive IMPT or TORS.

The purpose of the study is to evaluate the ability and efficacy of using a polarization-enhanced reflectance and fluorescence imaging device, PERFIS, (see the Device Brochure) for demarcation of nonmelanoma skin cancer margins prior to surgery. PERFIS is a harmless and non-invasive device that has been used to image biological tissue both in vitro and in vivo. In this study it will be used to image nonmelanoma skin cancer lesions prior to surgery. The use of PERFIS will not affect patient care or treatment decisions in any way. No extra tissue will be used for imaging.

Oral cancer represents the sixth most common cancer worldwide whilst in Pakistan it ranks the second most common cancer in either gender. Histologically, over 90% of oral cancer lesions are squamous cell carcinomas which are diagnosed on the basis of histopathological analysis. However, proliferation kinetics and nucleolar status are not clearly delineated by routine H&E examination; thus making use of various proliferation markers imperative for the purpose. Nuclear organizer regions (AgNORs) are associated with proliferative activity and represents as a diagnostic aid in oral malignancies. Similarly, methyl green pyronin (MGP) stain has also been valuable as a complement in routine histopathological studies of several neoplastic entities. Morphometric techniques offer an opportunity to quantify nuclear changes associated with malignancy and may provide an objective basis for grading the tumors. The present study is planned to analyze the morphometric parameters of the MGP stain in oral squamous cell carcinoma, and in their various histological grades, and to assess if the MGP staining parameters could give information on the aggressiveness of the malignant lesions of oral cavity. Sections from thirty cases of squamous cell carcinoma along with thirty cases of normal oral mucosa will be evaluated for methyl green pyronin (MGP) and AgNOR staining. Morphometric analysis of various MGP staining and AgNOR parameters would be performed using micrometer. Statistical analysis of the results will be carried out using SPSS. Quantitative variables will be expressed as mean ± Standard Deviation. Frequencies and percentages will be given for qualitative variables. It is hypothesized that oral squamous cell carcinoma will exhibit significantly higher MGP staining and AgNOR staining parameters than normal mucosa of the oral cavity.

This is a retrospective study in patients with cancer of the oral cavity, pharynx, and larynx. Imaging exams of these patients will be analyzed with the objective of developing and validating a clinically applicable method for evaluation of cachexia and/or sarcopenia in a patient with head and neck cancer from musculature imaging of the neck. Indeed, the prognostic influence of body composition will be evaluated.

Collection of tissues for analysis from patients undergoing elective neck dissection. The hypothesis of the study is that specific genetic alterations occur in head and neck cancers that have spread to regional and/or distant sites, and these alterations can be identified from biopsy specimens to allow more accurate staging of tumor and better treatment planning.

To explore biomarkers predictive of clinical response to Taxane/5-FU/platinum based chemotherapy in esophageal squamous cell carcinoma. To identify negative predictive markers to 5-FU/platinum/Taxane. To elucidate signal transduction pathway attributable to 5-FU/platinum/Taxane resistance. To analyze correlation between the quantity of circulating tumor cells and circulating endothelial cell precursors and treatment response to Taxane/5-FU/platinum based chemotherapy.

The objective of this program is to provide access to cemiplimab (REGN2810) to patients with metastatic cutaneous squamous cell carcinoma (mCSCC) or locally advanced cutaneous squamous cell carcinoma (laCSCC) who are not candidates for surgery prior to cemiplimab (REGN2810) being commercially available.

Use by Oncologists of Validated Geriatric Assessment Tools: G8 Screening Test and Certain Tests for Thorough Geriatric Evaluation

Overall survival of patients with head and neck squamous cell carcinoma (HNSCC) remains unsatisfactory due to often advanced clinical stage at diagnosis and high rate of recurrence and second primaries. About 75 % of patients with localized HNSCC are expected to show circulating tumor DNA (ctDNA) pre-treatment. ctDNA reflects tumor genome and disease burden and is termed 'liquid biopsy' (LB) when collected through venous bloodstream. LB has potential to assist in early diagnosis of recurrence and progression, and prediction of response to targeted therapeutic agents. Increased metabolic activity measured in positron emission tomography-computed tomography (PET-CT) is currently the most sensitive technique to detect residual cancer or progression of HNSCC after curative treatment. High metabolically active tumor volume (MTV) is associated with treatment resistance and shows independent prognostic significance. The objective is (i) to investigate whether MTV detected with PET-CT correlates to the pattern and amount of genetic alterations in ctDNA of patients with HNSCC referred to radio- (chemo)therapy (RT/CRT). Another objective is (ii) to determine sensitivity of LB compared to PET/CT in detecting residual tumor 3 months after completion of RT/CRT. Third (iii), genetic landscape in LB and fresh tumor samples will be evaluated to detect resistance genes and targets for immunotherapy and surveillance post-treatment. This prospective study includes 30 patients with stage III/IV HNSCC. Before onset and 3 months from RT/CRT, LB is obtained for next-generation DNA sequencing using a commercial platform. ctDNA and digital droplet PCR will be quantified and compared to MTV in simultaneously acquired PET-CT. The investigators hypothesize that LB could assist or replace PET/CT in response monitoring and detection of recurrence after RT/CRT.

Investigation of the molecular mechanism and clinical significance of the interplay between Twist1 and other EMT regulators through microRNA-29 family.