Active clinical trials for "Carcinoma, Squamous Cell"

Transoral robotic surgery is an option to treat supraglottic squamous cell carcinomas. Oncological outcomes 2 years after transoral robotic surgery for supraglottic laryngectomy were studied.

the investigators randomly divide the eligible objects into two groups:1. objects in this group will first receive OE endoscopy observation and subsequent white light imaging(WLI) observation during oropharynx and hypopharynx; 2. objects in this group will first receive WLI observation and subsequent OE observation during oropharynx and hypopharynx. Then, the investigators will compare the detect rate of oropharyngeal and hypopharyngeal superficial squamous cell carcinoma of two groups to find if OE endoscopy can improve the detect rate of oropharyngeal and hypopharyngeal superficial squamous cell carcinoma in esophageal cancer patients.

Esophageal squamous cell carcinoma is one of the most common malignant tumor of upper digestive tract. However, the detection rate and diagnosis accuracy of early esophageal squamous cell cancer is low. The aim of this study is to develop a computer-assisted diagnosis tool combining with optical magnifying endoscopy for early detection and accurate diagnosis of it.

With this study, the investigators will investigate the epigenetic changes, which may contribute to the development of head and neck squamous cell carcinomas.

To identify risk factors for aggressiveness in Squamous Cell Carcinoma of the skin in organ transplant recipients.

Background: Esophageal cancer is the sixth leading cause of cancer deaths worldwide. Two primary cell types, squamous cell carcinoma and adenocarcinoma, account for most cases. Of the two, esophageal squamous cell carcinoma (ESCC) accounts for more than 80 percent of all deaths from esophageal cancer. Many cases occur in certain areas with defined geographic boundaries, including parts of Kenya. Studies of ESCC in developed countries (such as the United States) suggest that heavy tobacco and alcohol use, poor diet, and low socioeconomic status are the primary risk factors. Males and African Americans are also at higher risk. However, these risk factors do not fully explain the prevalence of cases in several of the identified geographic areas. ESCC is the most common cancer seen at Tenwek Hospital in western Kenya, and a notable number of patients are 30 years of age or younger. Objectives: To test the feasibility of a new protocol by recruiting visitors to Tenwek Hospital and volunteers from the general population for study purposes. To use the new protocol to obtain blood and urine samples from ESCC cases in Tenwek Hospital and from nonpatient volunteers. Eligibility: Hospital patients and volunteers who live within 50 kilometers of Tenwek Hospital in western Kenya. Design: All participants will complete a questionnaire and provide blood and urine samples for testing. The questionnaire will include questions about individual and family medical history, living conditions, lifestyle, habits, and diet. Blood and urine samples will be collected from all participants after the questionnaire. Biological samples will be shipped to the United States for further testing. Treatment will not be offered as part of this study.

The purpose of this study is to estimate and define the mean number, degree of confluence, and depth of penetration of melanocytes in chronically sun exposed skin of the head and neck using Mart-1 immunostains on frozen sections. The study was conducted to confirm whether similar results were found using permanent sections. The present study used hematoxaline and eosin (H&E) staining as well as Mart-1 staining, and included patients from both Mayo Clinic Jacksonville and Rochester.

This is a multicentric feasibility study aimed to evaluate the Oncoral® test. The study includes 2 steps. The first one aims to validate the algorithm defined at the time when the test was developed in patients with different tumour stages. Patients will be enrolled before any treatment. They will immediately undergo the test. No follow-up will be realized. In total, 100 patients will be included in this first step. The estimated period of inclusion is 6 months. If the algorithm is validated, the second step of the study will start. The purpose is to determine the characteristics of the test. Enrollment will concern smokers and alcohol drinkers at high risk of developing an epidermoid carcinoma of the upper aerodigestive tract. Patient follow-up will vary with both the result of the test and the biopsy, up to a maximum of one year. In total, 385 patients will be enrolled in this step during an estimated period of 18 months.

This is an open-label, exploratory, biomarker study of intravenous temsirolimus given once weekly for 3 weeks to newly diagnosed, advanced stage head and neck cancer subjects prior to beginning their standard therapy for their specific disease. The primary objective of this study is to identify biomarkers of temsirolimus activity.

This study investigates the diagnostic value of PET/MRI for cervical lymph node metastases from head and neck squamous cell carcinomas.