Active clinical trials for "Neoplasms"

The data on long term natural history of benign nonfunctioning adrenal tumors (NFATs) are lacking. The aim is to identify clinical characteristics associated with tumor growth and progression to mild autonomous cortisol excess over time.

This is a retrospective observational study to investigate the short-term surgical outcomes, and long-term oncological outcomes of patients diagnosed with Ulcerative colitis and rectal cancer.

The prospective study aims to explore the value of total-body PET/CT dynamic imaging (uExplorer) in assessing tumor metabolic heterogeneity and predicting prognosis for patients with locally advanced, unresectable non-small cell lung cancer (stage III) treated by neoadjuvant chemotherapy plus nivolumab and definitive concurrent chemoradiation therapy.

Lung adenocarcinomas (LUADs) from Asian ancestry are reported to have different genomic architectures compared with LUADs from Caucasian ancestry. However, due to lack of available cases, few studies controlled the clinical attributes during the comparisons of the genomic alterations. In this study, the investigators will identify Asian LUADs patients who had broad-panel next-generation sequencing (NGS) performed on their primary tumor between January 2018 and December 2019 at the department of thoracic surgery of Peking University People's Hospital. Then, Caucasian LUADs patients who had targeted NGS (Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets [MSK-IMPACT]) will be identified in the GENIE database, which consists of 6673 primary lung adenocarcinoma samples with clinical annotations. Finally, genomic alterations regarding somatic mutations, copy number variations, fusions, mutational signatures, oncogenic pathways, and therapeutic actionability will be comprehensively compared between these two cohorts after adjusting age, sex, smoking status, and pathologic stage using propensity score matching. This study will elucidate important ancestry differences between Asian and Caucasian lung adenocarcinoma patients.

The purpose of this study is to determine the sensitivity and specificity for LifeKit Prevent Colorectal Neoplasia Test for colorectal cancer (CRC) and for adenoma, including advanced adenoma.

A multicenter Italian retrospective study on COVID-19 pandemic condition and advanced Gastro - Intestinal Cancer. Are in Italy increased the new diagnosis of GI cancer in advanced stage in the 2020 compared with 2019, as a consequence of COVID-19?

Mid to low-lying rectal cancer patient with enlarged lateral lymph node befor treatment and receiving lateral lymph node dissection would be enrolled. Radiomics parameters of lateral lymph nodes would be extracted by expert software. Then a part of the nodes would be used as the training set to build the prediction model, and the another part nodes would be used as the validation set.

the investigators will follow up after patients with neuroendocrine tumors who undergo PRRT treatment and evaluate the response for treatment using PET/CT with different tracers

Localization is the key for successful excision of small target nodules under thoracoscopy, but the procedure also brings risks to patients. However, the criteria is still unclear. The investigators will validate the prediction model produced by institutional retrospective analysis in the prospective cohort.

Prospective observational study comparing the use of circular (Orvil) and linear stapler for intracorporeal esophagojejunostomy. Patients with adenocaricinoma involving the esophagogastric junction or the gastric cardia are observed. The two methods of esophagojejunostomy are compared.