The Molecular Predisposition to Hereditary Nonpolyposis Colon Cancer (HNPCC)

January 5, 2020 updated by: M.D. Anderson Cancer Center
The goal of this study is to understand factors which may influence risk for colorectal and other cancers in families. These factors include genetic variability, in combination with diet and lifestyle. In order to achieve these goals, we need to contact as many eligible participants as possible.

Study Overview

Detailed Description

If you agree to take part in this study, you will have a single sample (8-10 teaspoons) of blood collected, depending upon current health status. The blood will be drawn at MD Anderson. If you cannot come to the clinic, a blood drawing kit will be sent to the your home, which will include instructions and a postage-paid return express mail envelope. Phlebotomy charges connected to this study will be paid by the study. The blood sample will be sent to a research laboratory at MD Anderson for analyses. If you are unwilling or unable to give a blood sample, you can give a saliva sample instead. In this case, a kit will be mailed to you with instructions for obtaining the saliva sample. A prepaid envelope will be included for its return. Participants who previously participated in Protocol PA11-0567 and provided a blood sample do not need to provide another blood sample. The previously stored blood sample collected by Protocol PA11-0567 may be used.

You will be asked to answer a series of questions. These questions will ask about foods eaten either one year ago or one year before the first diagnosis of cancer. There will also be questions about cooking methods as well as overall health, and vitamin and medication use. Some of the questions are personal, but all answers will be kept strictly private.

The questionnaire will be sent to your home via U.S. or express mail. It may take several hours to complete the survey, but there is no time limit on its completion. There are no right or wrong answers to the questions. A postage-paid return envelope will be provided for the return of the questionnaire.

Solid tumor material and colonoscopy specimens of normal tissue will be collected from participants requiring either colonoscopy or surgery for routine clinical reasons. The tumor fragments will be collected from specimens. Tissue required for a clinical pathology diagnosis will not be used for research purposes.

This is an investigational study. About 2,000 patients and family members will take part in this study. All will be enrolled at MD Anderson.

Study Type

Observational

Enrollment (Anticipated)

2000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Texas
      • Houston, Texas, United States, 77030
        • University of Texas MD Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Referrals from Departments of GI Oncology, GI Medicine and Nutrition, GI Surgery, GYN Oncology, Cancer Prevention and from the Genetic Counselors at UT MD Anderson Cancer Center, families and spouses.

Description

Inclusion Criteria:

  1. All patients with a new referral for a diagnosis of colorectal cancer (adenocarcinoma) and/or HNPCC-related cancers at the UTMDACC will be considered potentially eligible for this study regardless of prior treatment.
  2. Families maintained at the UTMDACC Hereditary Colon Cancer Registry that have a known germline mutation in a mismatch repair gene or contain two or more first degree relatives diagnosed with CRC and/or any HNPCC-related cancers, one of whom must be less than or equal to 50 years at diagnosis.
  3. First-degree and more distant relatives of individuals diagnosed with CRC and/or any HNPCC-related cancers from either of the groups in 1 and 2 (above).
  4. Any patient diagnosed with CRC and/or any HNPCC-related cancers less than or equal to 45 years of age.
  5. Greater than or equal to age 18 at time of study.
  6. Able to provide informed consent to participate in this study indicating that they are aware of the investigational nature, in keeping with the policies of this hospital.
  7. Non-HNPCC quartets, defined as parents and two offspring who do not carry a mismatch repair gene mutation. These non-HNPCC quartets should have no personal history of cancer, nor cancer in any first degree relatives of the quartet members, nor history of trinucleotide repeat syndromes. Non-HNPCC parents in a quartet should be less than 34 years old at the time the offspring were born.
  8. Lynch Syndrome patients identified and recruited through Protocol PA11-0567 who opt into Optional Procedure B, which consents the patient to participate in this study.

Exclusion Criteria:

  1. Diagnosis of current major psychiatric disorder, per DSM-III-R (or DSM IV).
  2. Age less than 18 years at time of enrollment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Gene Mutation
Group with increased risk for developing colorectal and/or other cancers as the result of an inherited gene mutation, family history of cancer, or an early age of cancer onset.
Mailed questionnaires asking about foods eaten, cooking methods as well as overall health, and vitamin/medication use, taking several hours to complete.
Other Names:
  • Survey
No Cancer History
Group with little/no personal or family history of cancer.
Mailed questionnaires asking about foods eaten, cooking methods as well as overall health, and vitamin/medication use, taking several hours to complete.
Other Names:
  • Survey
Spouses
Spouses of those who may have an increased risk for developing colorectal and/or other cancers as the result of an inherited gene mutation, family history of cancer, or an early age of cancer onset, or little/no personal or family history of cancer.
Mailed questionnaires asking about foods eaten, cooking methods as well as overall health, and vitamin/medication use, taking several hours to complete.
Other Names:
  • Survey

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to Onset for Colorectal Cancer
Time Frame: Overall study period up to 15 years.
Primary endpoint is time to onset for colorectal cancer using Cox proportional hazard regression for determining the role that polymorphic variants of genes have on risk for development of HNPCC at an early age.
Overall study period up to 15 years.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 1994

Primary Completion (Anticipated)

September 30, 2020

Study Completion (Anticipated)

September 30, 2020

Study Registration Dates

First Submitted

October 4, 2011

First Submitted That Met QC Criteria

October 5, 2011

First Posted (Estimate)

October 6, 2011

Study Record Updates

Last Update Posted (Actual)

January 7, 2020

Last Update Submitted That Met QC Criteria

January 5, 2020

Last Verified

January 1, 2020

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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