Clinical Trial: Gastroenteral-Pancreatic Neuroendocrine Tumors in Taiwan

Study Status: Enrolling by invitation
Recruit Status: Enrolling by invitation
Study Type: Observational

Official Title: A Multi-center, Registration Study for Gastroenteral-Pancreatic Neuroendocrine Tumors in Taiwan

Brief Summary:

Neuroendocrine tumors (NETs) are neoplasms originating from neuroendocrine cells located throughout the body. They secret various peptides and cause various symptoms (carcinoid syndrome) or not. The incidence of NETs was not well-known till recently when Yao et al. and Hausa et al. published their surveys of NETs using data from the US Surveillance, Epidemiology, and End Results (SEER) program and from the Norwegian Registry of Cancer (NRC). The incidence of NETs in Taiwan by using the Taiwan Cancer Registry (TCR) data was increased from 0.3 to 1.51 per 100,000 from 1996 to 2008. The increased incidence for NET worldwide probably was partially due to the awareness and improvement of diagnostic technology. Compared with the incidence in western countries, the incidence of NET is much lower in Taiwan. And the incidence of NETs in Asian Pacific Islanders was also lower than the whites and blacks in US. Gastroenteral-pancreatic NETs (GEP-NETs), accounting for half to two thirds of all NETs, is the most common site of NETs. As the progress in the understanding of pathophysiology for GEP-NET, there are two novel targeted agents shown to be effective for the treatment of GEP-NET. Meanwhile, response to mTOR inhibitor was better for Asian than Caucasian in the phase III study using everolimus for advanced pancreatic NETs. These information suggests that there is racial difference for either genetic or environmental risk factors and these factors result in different incidence and/or clinical outcome. Currently, there is limited data for thorough epidemiologic study in Taiwan. The aim of this study is to collect clinical information for GEP-NET, and survey the prognostic factors for GEP-NET in Taiwan. We suppose that this epidemiologic study would provide a database potentially to improve the diagnosis, and treatment of GEP-NET. This study plans to include 600 GEP-NET patients. NET patients diagnosed after 2011.1.1 is included in

Detailed Summary:

2.0 OBJECTIVES

2.1 To establish the database for GEP-NET by register the clinical presentation, diagnosis, stages, treatment and clinical outcome of GEP-NET patients.

2.2 To analyze the risk and prognostic factors of GEP-NET patients. 2.3 To make a treatment consensus for GEP-NETs

3.0 PATIENT POPULATION There are approximately 500 patients estimated to meet the inclusion criteria from 10 hospitals in Taiwan. This recruitment estimate may vary and will be flexible since no formal sample size is required.

3.1 Inclusion Criteria: 3.1.1 histologically proven GEP-NET patients, according to the WHO classification in any stage.

3.1.2 Signed informed consent 3.2 Exclusion criteria: 3.2.1 patients of GEP-NET without histological proof


Sponsor: National Health Research Institutes, Taiwan

Current Primary Outcome: To establish the database for GEP-NET by register the clinical presentation, diagnosis, stages, treatment and clinical outcome of GEP-NET patients. [ Time Frame: There are approximately 500 patients estimated to meet the inclusion criteria from 10 hospitals in Taiwan. This recruitment estimate may vary and will be flexible since no formal sample size is required. ]

Survival analysis will be conducted to calculate the hazard ratio of GEP-NET outcomes (overall survival, disease-free survival, disease-specific survival, and second primary) associated with potential prognostic factors. First, univariate survival analysis will be performed using Kaplan-Meier method. Those variables that are significantly (p<0.05) associated with GEP-NET outcomes will be included in the multivariable analysis using Cox proportional hazards regression model. With accrual interval of 10 years,an average follow-up of 5 years, and a median time to outcome of 5 years, the proposed sample size of 500 cases has a statistical power of 1.0 to detect a hazard ratio of 1.5 or more.


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: National Health Research Institutes, Taiwan

Dates:
Date Received: February 27, 2014
Date Started: March 2014
Date Completion: February 2024
Last Updated: March 25, 2016
Last Verified: March 2014