Active clinical trials for "Neuroendocrine Tumors"

The purpose of this study is to establish a neuroendocrine tumor registry. A registry is a collection of information. To create this registry, the investigators would like to get information, blood and tumor samples from people with neuroendocrine tumors. By collecting this information and material, the investigators are hoping to learn more about the genetic causes of neuroendocrine tumors. All of this will help us to better understand neuroendocrine cancer, so the investigators can find better ways to treat and diagnose this disease. DNA will be taken from the blood samples and will be used in future studies. This will be an important resource from which the investigators can study genes that may be related to a higher risk of neuroendocrine tumors. The information collected will include medical information, family history of cancer and your answers to questions about how the cancer affects quality of life.

Von Hippel Lindau disease (VHLD) is an inherited syndrome characterized by vascular malformations, kidney cancer, adrenal gland and pancreas tumors. The VHL protein is not functional in the different disease associated lesions which results in production of high amounts of vascular endothelial growth factor (VEGF). Currently there are no clinical, radiographic or molecular markers that can predict the natural history of a given lesion. With 89Zr-bevacizumab positron emission tomography (PET) scanning, VEGF can be visualized and quantified. The investigators hypothesize that 89Zr-bevacizumab PET imaging is a useful tool to predict the behaviour of disease associated lesions in patients with VHLD. Adult patients with VHLD who have had routine magnetic resonance imaging (MRI) scans of central nervous system (CNS) and abdomen will undergo a 89Zr-bevacizumab PET scan. MRI will be repeated within 12 months.

The aim of our study is to assess variability of measurements of liver metastases from neuroendocrine tumors (NET) on different magnetic resonance imaging (MRI) sequences. In this institutional review board-approved retrospective study from January 2011 to December 2012, all liver MRIs performed at our department in patients with proven liver metastases from NETs and with at least one measurable lesion according to Response evaluation criteria in solid tumors (RECIST 1.1) were included.

The aim of this study is to quantify inter-observer variability in delineating pancreatic neuroendocrine neoplasm (PanNEN) on Computerized Tomography (CT) images and its impact on radiomic features (RF), subsequently to this determination, to use CT texture analysis to predict, histological characteristics of PanNEN on CT scans.

Imaging findings (including CT and MRI images) of both well-differentiated G3 PNET and poorly differentiated PNET were studied; The CT imaging findings of G3 stage PNET and pancreatic cancer were compared to establish a Logistic regression diagnostic model, and the survival analysis of the two was compared. Cox regression was used to study the risk factors for survival prognosis of well-differentiated and poorly differentiated PNET based on CT image features

Study objective: To describe the microflora characteristics of the pancreatic solid lesions via the tissue acquired via the endoscopic ultrasound-guided fine needle aspiration/biopsy (EUS-FNA/B). Study design: This is a prospective observational study.

The aim of the present project is to evaluate the frequency of distant metastases and clinically relevant relapse and mortality, respectively, of aNEN (Neuroendocrine Neoplasms of the Appendix) measuring 1 - 2 cm. The investigators hypothesize that the mortality rate of aNET (Neuroendocrine Tumors of the Appendix) measuring 1 - 2cm is less than 1%. Furthermore, the investigators hypothesize that regional lymph node metastases of aNET measuring 1 - 2 cm are clinically not relevant and are not associated with reduced survival. The investigators therefore hypothesize that oncological right-sided hemicolectomy has no impact on long-term survival after complete resection of aNET measuring 1 - 2 cm and that the malignant potential quo ad vitam of these tumors is lower than the risk of oncological hemicolectomy.

"The patient's journey" is an interview based study assessing the patients' experience from the first symptoms to a final diagnosis focusing on patients with small intestinal neuroendocrine tumors.

Through the investigators involvement in an international consortium, the investigators had the opportunity to acquire a new type of synthetizer for the radiolabelling of such tracers. The investigators propose in this project to develop on their site, the radiosynthesis of 68Ga-DOTATOC and to evaluate prospectively the diagnosis of neuroendocrine tumors, compared with the current imaging OctreoScan®. The objectives of this project are: - to validate the radiosynthesis of 68Ga-DOTATOC on their site with a new synthetizer - and clinically evaluate, through a prospective preliminary study, the diagnostic accuracy of PET-CT with 68Ga-DOTATOC in comparison with other standard imaging examinations.

Sunitinib and everolimus are two new treatments approved in 2011 for patients with pancreatic neuroendocrine tumors (NETs). In addition, some traditional chemotherapies are often used to treat pancreatic NETs. Traditional chemotherapy is also known as "cytotoxic therapy" and works by killing cells that are actively dividing. There have been no studies to compare the different types of treatment. Since the patient is eligible for treatment with either sunitinib, everolimus or traditional chemotherapy it can help us identify factors that may help future patients benefit from these therapies.