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Familial Colorectal Cancer Registry in Hispanics (PURIFICAR)

This study is currently recruiting participants. (see Contacts and Locations)
Verified August 2011 by University of Puerto Rico
Information provided by:
University of Puerto Rico Identifier:
First received: June 24, 2009
Last updated: August 5, 2011
Last verified: August 2011

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.

Colorectal Cancer

Study Type: Observational
Study Design: Observational Model: Family-Based
Time Perspective: Prospective
Official Title: Familial Colorectal Cancer In Puerto Rico: A Feasibility Study

Resource links provided by NLM:

Further study details as provided by University of Puerto Rico:

Primary Outcome Measures:
  • We will recruit individuals with colorectal cancer with and without family history of CRC and their immediate family members and obtain the following: paraffin-embedded tumors blocks, blood samples, risk factor and food frequency questionnaires. [ Time Frame: 5 years ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • We will study the following parameters that we help us plan the larger population-based study such as: response rate of probands and their selected relatives, response rate of participants (probands and relatives), etcetera. [ Time Frame: 5 years ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples With DNA

Tumor blocks (colorectal tumors) and blood samples

Estimated Enrollment: 300
Study Start Date: July 2007
Estimated Study Completion Date: July 2015
CRC cases with family history of CRC
CRC cases without family history of CRC

Detailed Description:

Data obtained from this two-year pilot 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. Moreover, we anticipate joining the Collaborative Family Registries for Colorectal Cancer (Colon CFR) and 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 interaction within the context of the Colon CFR.


Ages Eligible for Study:   15 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Probands will be ascertained from the Puerto Rico Central Cancer Registry (PRCCR), from the monthly report of incident colorectal cancer cases that will be provide by Dr. Nayda Figueroa, co-investigator in this pilot project. We will follow a passive consent approval from probands identified through the PRCCC. The PRCCR allows patient contact after written notification with the probands physician in record. Physicians are notified about the intent of the investigator to contact his/her patient unless physician denies access to the patient. If the physician does not deny access to contact his/her patient, a letter will be sent to the probands informing them about the study and inviting them to contact the primary investigator.


Inclusion criteria:

  • patients with pathologic diagnosis of colorectal cancer (ICD codes 180-189,199,209)
  • who are 15 years of age or older

Exclusion criteria:

-without previous history of colorectal cancer

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00927680

Contact: Marcia R. Cruz-Correa, MD, PhD 787-772-8300 ext 1214
Contact: Yaritza Diaz-Algorri, MS 787-620-8722

Puerto Rico
University of Puerto Rico Comprehensive Cancer Center Recruiting
San Juan, Puerto Rico, 00936
Contact: Marcia R. Cruz-Correa, MD, PhD    787-772-8300 ext 1214   
Contact: Yaritza Diaz-Algorri, MS    787-620-8722   
Principal Investigator: Marcia R. Cruz-Correa, MD, PhD         
Sub-Investigator: Reynold Lopez-Enriquez, MD         
Sub-Investigator: Edna M. Mora-Pinero, MD         
Sub-Investigator: Rafael A. Mosquera-Fernandez, MD         
Sub-Investigator: Carlos G. Micames-Caceres, MD         
Sub-Investigator: Nayda Figueroa-Valles, MD         
Sponsors and Collaborators
University of Puerto Rico
Principal Investigator: Marcia R. Cruz-Correa, MD, PhD University of Puerto Rico
  More Information

No publications provided

Responsible Party: Marcia R. Cruz-Correa, MD, PhD, University of Puerto Rico Comprehensive Cancer Center Identifier: NCT00927680     History of Changes
Other Study ID Numbers: R03CA130034 NCI
Study First Received: June 24, 2009
Last Updated: August 5, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by University of Puerto Rico:
Colorectal Cancer
Familial Colorectal Cancer

Additional relevant MeSH terms:
Colorectal Neoplasms
Colonic Diseases
Digestive System Diseases
Digestive System Neoplasms
Gastrointestinal Diseases
Gastrointestinal Neoplasms
Intestinal Diseases
Intestinal Neoplasms
Neoplasms by Site
Rectal Diseases processed this record on November 25, 2014