Active clinical trials for "Neoplasms"

The aim of the study is to develop a computer program which is able to automatically detect colorectal polyps in endoscopic video sequences. Furthermore, the program shall be able to automatically distinguish between adenomas, serrated adenomas and hyperplastic polyps on the basis of optical features of the polyps. Video sequences of polyps will be collected during routine colonoscopy procedures. All polyps will be resected endoscopically so that histopathological diagnoses (gold standard) can be notified. In the validation phase of the study a computer program will be established which aims to distinguish between adenomas, serrated adenomas and hyperplastic polyps on the basis of optical features derived from the videos. A deep learning approach will be used for programming. Afterwards, in the testing phase of the study, videos of 100 polyps (not used in the validation phase) will be presented to the computer program. The establishment of a well- functioning computer program is the primary aim of the study.

This study is conducted to explore the feasibility and value of Intraoperative ultrasonographic localization of pulmonary nodules in video-assisted thoracoscopic surgery (VATS).

The expression level of PD-L1 on tumor cells is a pivotal point which might have some influence on prognosis, especially for those who might use PD-1 or PD-L1 antibody for treatment. The aim of this study is to detect the expression of PD-1 on advaced osteosarcoma patient who might use these antibodies for treatment. All those specimen should be taken by pathologist and confirmed with high tumor cellularity.

The symptoms of intralabyrinthine schwannomas (vertigo, deafness, instability, tinnitus) cut across the symptoms found in pressure pathologies involving the inner ear, particularly the endolymphatic hydrops. Some publications have described dilatation of the membranous labyrinth (hydrops) in the presence of intralabyrinthine tumors. It would be interesting to measure the size of the saccule (structure of the membranous labyrinth) in the presence of an intralabyrinthine schwannoma, to evaluate if some of the symptoms presented by the patients could be explained by the concomitant presence of an endolymphatic hydrops (accessible to drug therapy - Betahistine).

Early gastric cancer is defined as gastric cancer that only invades mucosal or submucosal layer. The 5-year survival rate of gastric cancer can exceed 90% due to appropriate treatment. The most important consideration is whether there is lymph node metastasis. Preoperative examination including gastroscopy, endoscopic ultrasonography (EUS) and CT are not accurate enough to predict lymph node metastasis in early gastric cancer. In a retrospective study, we created a nomogram to predict lymph node metastasis in early gastric cancer. In prospective validation, the sensitivity and specificity of the nomogram was 75% and 91%, respectively. Sentinel lymph node is a promising concept in early gastric cancer. Using carbon nanoparticles as tracer, the sensitivity and specificity of sentinel lymph node predicting lymph node metastasis in early gastric cancer were 90% and 100%. Based on these results, we proposed a new method that combines the Nomogram and sentinel lymph node to predict lymph node metastasis in early gastric cancer. First, the probability of lymph node metastasis of early gastric cancer patients is calculated by the Nomogram. Those with low incidence of lymph node metastasis continue to the sentinel lymph node procedure. A patient will be considered non lymph node metastasis if his/her frozen pathology of the sentinel lymph nodes is negative during the surgery. Then the standard radical gastrectomy is performed with lymphadenectomy. By comparing postoperative pathology and sentinel lymph node frozen pathology, the specificity of Nomogram combining sentinel lymph node predicting lymph node metastasis in early gastric patients is calculated. The primary endpoint of this research is that the specificity of the above-mentioned method is over 95%.

Immunotherapy is a promising therapeutic approach for patients with cancers. Patients with acute lymphoblastic leukemia (ALL) experiencing early relapse less than 18 months from diagnosis had very poor prognosis with 5-year survival rate of 21% (1). Recent clinical trials demonstrated that infusions of autologous T cell modified with chimeric antigen receptors (CARs) induced durable complete remissions in patients with relapse or refractory B-cell ALL (2-4). The editors of Science Journal announced cancer immunotherapy as the breakthrough of the year for 2013 (5). On Jan 30, 2015, Dr. Steven M. Altschuler, chief executive officer of the Children's Hospital of Philadelphia and 9-year-old ALL patient Emily Whitehead with 3-year leukemia free after CAR-T cell infusion were invited to White House for President Barack Obama's announcement of the Precision Medicine Initiative. The MIT Technology Review announced that the top one breakthrough technology in 2016 is genetically engineered immune cells saving the lives of cancer patients. This project will focus on the manufacturing of clinical-grade anti-CD19 CARs for B-cell malignancies in the future clinical trials.

This study evaluates the impact of the Radiofrequency assisted transection on the rate of postoperative pancreatic fistula (POPF) after performing distal pancreatectomies, central pancreatectomies and pancreatic enucleation

This is a study comparing routine inclusion of the lower neck in initial CT thorax in patients with suspected lung cancer to not including it. The study aims to assess whether such an intervention reduces the number of invasive investigations required to achieve a final diagnosis and clinical stage and whether it improves the detection of cervical lymph nodes involvement by lung cancer.

The "Extended VALHUDES" study is a Clinical Performance / Diagnostic Test Accuracy Study that aims to extend validation, achieved as part of the "Belgian VALHUDES", of HPV testing using BD Onclarity on samples collected using Copan's devices for dry self-sampling of vaginal material and for first-void urine: FLOQSwab® 5E089N and UriSponge™.

The aim of the study is to assess the good correlation and prediction of the DOI for the post-operative pathological results and prognosis.