View clinical trials related to Dysplasia.
Filter by:This early phase I trial studies how well multimodal imaging works for surveillance in patients with oral potentially malignant disorders. New types of imaging devices may help doctors decide if a lesion in the mouth is pre-cancerous or cancerous.
The main purpose is to describe clinical practices nowadays prospectively about patients with a dysplasia diagnosis or another histological lesions. It will be identified colic situation during the initial colonoscopy after dysplasia diagnosis or atypical lesion. Also the frequency and the type of monitoring conducted about these patients(surgical and endoscopic treatments). The main criterion evaluation will be the surgical and endoscopic rates during the time. The treatments offered such as surgical, endoscopic ones or none of them will be followed. Finally, the outcome of these patients: stability, lesion disappearance, surgery or development of cancer with frequencies for each of them and relationships with histological abnormal colorectal lesion will be measured.
To evaluate the efficacy of endoscopic screening on esophageal cancer (EC) and determine the most cost-effective strategy of endoscopic screening in high risk population in China, 668 villages of Hua county, a high risk area of esophageal cancer, were randomized into screening arm and control arm in a ratio of 1:1 and the total sample size is over 32,000 (~16,000 per group). Participants in the screening arm will accept standard chromoendoscopy examination to detect early esophageal cancer and no screening were designed in the control arm. The incidence of advanced EC, EC-specific mortality and all-cause mortality will be compared within the two groups to test the hypothesis that endoscopic screening would alter the natural history of lesions in esophagus and the incidence of advanced stage EC, EC-specific mortality and all-cause mortality in the screening arm will be lower than the control group. Cost-effectiveness analysis will also be conducted to find the most cost-effective strategy of endoscopic screening in rural China.