Spots Global Cancer Trial Database for Molecular and Epidemiological Risk Factors in the Development of Gastric Cancer

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Trial Identification

Brief Title: Molecular and Epidemiological Risk Factors in the Development of Gastric Cancer

Official Title: Identification of Molecular and Epidemiological Risk Factors in the Development of Gastric Cancer in High-risk Predominantly Hispanic Population

Study ID: NCT04600466

Conditions

Gastric Cancer

Interventions

Molecular testing for all participants.

Germline Testing

Survey

Study Description

Brief Summary: This protocol is a single-institution feasibility study to identify the molecular and epidemiological risk factors in the development of gastric cancer in high-risk predominantly Hispanic South Texas population. The study is broken down into two main parts: 1) To identify molecular differences in gastric adenocarcinoma (GAC) between Non-Hispanics and Hispanics, stratified by age, and in benign, pre-malignant, and malignant gastric lesions; and 2) To identify environmental and clinicopathological factors in Hispanics associated with specific molecular changes linked to the development of GAC.

Detailed Description: The first part of the study will be accomplished by performing molecular testing on formalin-fixed paraffin-embedded (FFPE) tissues on retrospectively identified patients with GAC. Germline testing will be done on both retrospectively and prospectively identified cohort of patients with diagnosis of GAC. The second part of the study will be accomplished via survey administration on retrospectively and prospectively identified patients with diagnosis of GAC and to test Helicobacter pylori (H. pylori) and Epstein-Barr virus (EBV) infection status, which are known risk factors for the development of GAC, on their FFPE gastric specimen. The data from part 1 and part 2 will be analyzed and correlated. The overall goal of the study is to identify molecular markers and environmental risk factors in GAC unique to Hispanics relative to Non-Hispanics in South Texas, and to define molecular alterations in pre-malignant gastric lesions associated with the development of GAC. The long-term goal is to improve racial disparities by defining prognostic and therapeutic molecular markers and environmental risk factors in Hispanics and ultimately for all patients with GAC. Identification of high-risk molecular markers and environmental factors in the development of GAC will help future deployment of improved prevention and surveillance modalities.