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Spots Global Cancer Trial Database for Familial Colorectal Cancer Registry in Hispanics

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Trial Identification

Brief Title: Familial Colorectal Cancer Registry in Hispanics

Official Title: Familial Colorectal Cancer In Puerto Rico: A Feasibility Study

Study ID: NCT00927680

Interventions

Study Description

Brief Summary: Colorectal cancer (CRC) is the second leading cause of cancer in Puerto Rico (PR) accounting for approximately 1,500 individuals annually, which represent 12% of all cancer cases in the island. The genetic epidemiology of CRC among Hispanic populations is not well studied, hence studies focused on large, well defined ethnic groups such as Puerto Ricans, are clearly warranted. The first step towards evaluating the molecular, environmental, and genetic epidemiology of CRC in PR is to establish a population-based familial CRC registry. The following specific aims have been proposed: Specific Aim 1: To prospectively identify and recruit approximately 300 CRC probands from two distinct geographical areas in PR (Metropolitan and Southern Region). From each proband the investigators will obtain a pedigree extended to second-degree relatives and cousins. Assuming 10% will be positive for a family history of CRC, the investigators will then recruit all 30 probands with a family history of CRC and a sample of 15 family-history negative probands and obtain: paraffin-embedded tumors blocks, blood samples, risk factor and food frequency questionnaires. Specific Aim 2: To prospectively identify and recruit selected relatives (parents, grandparents, and same generation relatives - cousins and siblings) from the 45 probands identified in Specific Aim 1. In addition, for siblings and cousins of probands (i.e. relatives in the same generation as the proband), the investigators will obtain risk factor and food frequency questionnaires, and for colorectal cancer cases, tumor blocks and pathology reports of their cancers. Specific Aim 3: To estimate from this pilot study the following parameters: (a) response rate of probands and their selected relatives; (b) response rate of participants for each data item; (c) family history of CRC and other cancers; (d) number of living first- and second-degree relatives and cousins of probands; (e) number of these relatives who live in the same household and region/municipality; (f) prevalence/distribution of selected risk factors from the administered questionnaires.

Detailed Description: Data obtained from this study will serve as the foundation for our large, island-wide, population-based, genetic-epidemiologic study of familial colorectal cancer in Puerto Rico. Through this feasibility study, we will assess the feasibility: (1) of recruiting colorectal cancer patients using the PR Central Cancer Registry, (2) of evaluating family pedigrees and recruiting the relatives of probands (3) obtaining tumor, blood, medical and exposure information from both probands and their relatives. Providing important data on Hispanic populations that would enable family-based case-control studies of risk factors for CRC, with an emphasis on candidate genes in selected carcinogenic pathways, genetic and epigenetic modifications. Furthermore, information obtained from this proposal may serve to identify families that would be informative for linkage studies to potentially map new genes, evaluate genotype-phenotype correlations, gene-gene and gene-environmental interactions.

Eligibility

Minimum Age: 15 Years

Eligible Ages: CHILD, ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: Yes

Locations

Oncologic Hospital, San Juan, , Puerto Rico

University of Puerto Rico Comprehensive Cancer Center, San Juan, , Puerto Rico

Contact Details

Name: Marcia R. Cruz-Correa, MD, PhD

Affiliation: University of Puerto Rico

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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