Effects of Serotonin Excess on Bone in Carcinoid Syndrome
Carcinoid SyndromeSerotonin has recently been identified as a major regulator of bone formation. Gut-derived serotonin inhibits bone formation, and early animal studies have shown that inhibition of gut-derived serotonin has anabolic effects on bone in ovariectomised rodents. This pathway has potential to be developed as a new anabolic treatment for osteoporosis in humans. Carcinoid neuro-endocrine tumours produce very high levels of serotonin, and so it might be expected that patients with carcinoid disease would have reduced bone formation, low bone mass and fractures. However, this has not been apparent in clinical practice. There may be a discrepancy between rodent models and human disease. This study aims to identify whether patients with carcinoid disease have reduced bone mass, reduced bone formation or high fracture rates. The investigators will conduct a cross-sectional observational case-control study of patients with carcinoid disease in the Sheffield neuro-endocrine tumour clinic and gender-, age- and body mass index (BMI)-matched controls.
Prospective Assessment of Patients With Neuroendocrine Tumors and Current or Prior History of Carcinoid...
Neuroendocrine TumorsCarcinoid Syndrome1 moreThe NET-PACS trial is a Prospective Assessment of patients with neuroendocrine tumors and current or prior history of Carcinoid Syndrome or diarrhea undergoing peptide receptor radionuclide therapy with or without telotristat ethyl. The main goal of the study is to demonstrate the feasibility of serial in-depth assessment of patients with neuroendocrine tumors and current or prior history of carcinoid syndrome or diarrhea undergoing treatment with PRRT using telotristat ethyl compared to placebo. We aim to report and describe from a patient's perspective the multi-faceted impact of carcinoid syndrome in patients with NETs and the changes on treatment while getting PRRT using telotristat ethyl compared to placebo.
Azilect + Antidepressant Chart Review
Serotonin SyndromeTo identify the occurrence of serotonin toxicity in Parkinson's Disease (PD) patients receiving antidepressant therapy and rasagiline, compared to those receiving rasagiline without antidepressant medications and compared to PD patients receiving antidepressants, but not rasagiline.
Real-world Evidence Study EvaLuating PAtient-Reported Outcomes With XERMELO
Carcinoid SyndromeThe primary objective of the study is to estimate the proportion of carcinoid syndrome (CS) patients who are satisfied with their overall symptom control, 6 months after initiating treatment with telotristat ethyl (XERMELO).
Study to Evaluate the Use of Resources and the Costs Associated With Carcinoid Syndrome (CS) in...
Neuroendocrine TumorsThe objective of this study is to describe the use of resources and the costs associated with controlled or uncontrolled CS in patients with NETs in Spain.
A Study to Assess Neuroendocrine Tumour (NET) Patients Currently Treated by Somatuline Autogel for...
Neuroendocrine TumorsCarcinoid SyndromeThe purpose of the protocol is to to assess subject's overall satisfaction regarding control of diarrhea. The study aims to supplement results obtained through clinical trials with data obtained from a population of patients receiving treatment with Somatuline Autogel in routine practice.
Disease-Specific Questionnaire in Assessing Quality of Life in Patients With Gastrointestinal-Related...
Gastrointestinal Carcinoid TumorIslet Cell Tumor3 moreRATIONALE: Questionnaires that measure quality of life may help doctors identify the effects of treatment and improve the ability to plan treatment for patients with gastrointestinal-related neuroendocrine tumors. PURPOSE: This phase IV clinical trial is studying how well a disease-specific questionnaire works in assessing the quality of life of patients with gastrointestinal-related neuroendocrine tumors.