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A Prospective Study of Diet and Cancer in Members of the American Association of Retired Persons

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00340015
Recruitment Status : Completed
First Posted : June 21, 2006
Last Update Posted : June 18, 2020
Sponsor:
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) )

Tracking Information
First Submitted Date June 19, 2006
First Posted Date June 21, 2006
Last Update Posted Date June 18, 2020
Study Start Date October 24, 1995
Primary Completion Date Not Provided
Current Primary Outcome Measures
 (submitted: February 21, 2020)
  • Incident Cancer [ Time Frame: 12/31/2030 ]
    All cancers
  • All cause and disease specific mortality [ Time Frame: 12/31/2030 ]
    All cause and disease specific mortality
  • Chronic diseases [ Time Frame: 12/31/2030 ]
    Chronic diseases
Original Primary Outcome Measures Not Provided
Change History
Current Secondary Outcome Measures Not Provided
Original Secondary Outcome Measures Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title A Prospective Study of Diet and Cancer in Members of the American Association of Retired Persons
Official Title NCI-AARP Diet and Health Study
Brief Summary

This is a prospective cohort study of diet and cancer in relation to several major cancers, especially breast, prostate, and colorectal malignancies. The cohort comprises 50-69 year-old male and female members of the American Association of Retired Persons (AARP). In 1995-6 we mailed baseline questionnaires to 3.5 million AARP members. Over 615,000 AARP members responded, with over 540,000 providing adequate dietary data. Preliminary analysis indicates that the cohort, both men and women, has the desired wide distributions of percent calories from fat, dietary fiber, fruits and vegetables, and red meat. Approximately 330,000 of the initial respondents (with satisfactory data) returned a second questionnaire containing questions on exposures not assessed in the first instrument.

In terms of field activities, the study has been relatively quiescent over the past year. At the end of the five-year period of observation, we will mail to cohort members a brief follow-up questionnaire primarily targeted to endpoint assessment. (Because of cancer registry lag-time, we do not expect to mail this questionnaire until early 2002.) Follow-up will be largely passive, through established state registries. The initial questionnaire mailing will be to AARP members in those states selected on the basis of having registries with adequate coverage and quality. We will use active follow-up, with record retrieval, for the small percentage of cohort members who have moved out of the cancer registry areas. The buccal cell collection pilot study has been completed; over 50% of those pilot study partricipants who had completed the baseline and risk factor questionnaires returned buccal cell speciments. Preliminary data from a pilot study of the end point ascertainment procedure indicate that cohort incidence rates for major cancers, determined from registry data, are consistent with SEER rates.

Detailed Description This is a prospective cohort study to investigate relations among diet, lifestyle and cancer. The cohort comprises 50-69 year-old male and female members of the American Association of Retired Persons (AARP). In 1995-96 we mailed baseline questionnaires to 3.5 million AARP members. Over 615,000 AARP members responded, with over 540,000 providing adequate dietary data. Preliminary analysis indicates that the cohort, both men and women, has the desired wide distributions of percent calories from fat, dietary fiber, fruits and vegetables, and red meat. Approximately 330,000 of the initial respondents (with satisfactory data) returned a second questionnaire containing questions on exposures not assessed in the first instrument. In 2004-2006 we mailed a follow-up questionnaire to all living participants to assess non-cancer endpoints and lifestyle factors.
Study Type Observational
Study Design Observational Model: Cohort
Time Perspective: Prospective
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Non-Probability Sample
Study Population Members of the AARP (formally the American Association of Retired Persons), aged 50-71 years, and who resided in one of six states (California, Florida, Pennsylvania, New Jersey, North Carolina, and Louisiana) or in two metropolitan areas (Atlanta, Georgia and Detroit, Michigan) in 1995-1996.
Condition
  • Death
  • Cancer
Intervention Not Provided
Study Groups/Cohorts AARP
Members of the AARP, aged 50-71 years, and who resided in one of six states
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Completed
Actual Enrollment
 (submitted: March 29, 2011)
566401
Original Enrollment
 (submitted: June 19, 2006)
540833
Study Completion Date Not Provided
Primary Completion Date Not Provided
Eligibility Criteria
  • INCLUSION CRITERIA:

Patients participating will be selected from the American Association of Retired Persons age 50-69 living in one of the following state and metropolitan areas: California (minus Los Angeles county), Florida, Pennsylvania, New Jersey, Louisiana, North Carolina, Detroit, and Atlanta.

Sex/Gender
Sexes Eligible for Study: All
Ages 50 Years to 71 Years   (Adult, Older Adult)
Accepts Healthy Volunteers No
Contacts Contact information is only displayed when the study is recruiting subjects
Listed Location Countries United States
Removed Location Countries  
 
Administrative Information
NCT Number NCT00340015
Other Study ID Numbers 999995025
OH95-C-N025
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement Not Provided
Responsible Party National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) )
Study Sponsor National Cancer Institute (NCI)
Collaborators Not Provided
Investigators
Principal Investigator: Rashmi Sinha, Ph.D. National Cancer Institute (NCI)
PRS Account National Institutes of Health Clinical Center (CC)
Verification Date February 20, 2020