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Online Study of Colorectal Cancer and Prostate Cancer Screening Decision Making (CARR2)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Michael Pignone, MD, MPH, University of North Carolina, Chapel Hill
ClinicalTrials.gov Identifier:
NCT01558583
First received: February 7, 2012
Last updated: July 9, 2012
Last verified: July 2012
History of Changes
  Purpose

Participants will be recruited from the United States and Australia to take an online survey about colon cancer screening or prostate cancer screening. Individuals selected for both the prostate cancer survey and the colon cancer study will be randomized to take one of three survey types - balance sheet, rating and ranking or conjoint analysis. These surveys will help participants clarify their values and opinions about screening options for colon cancer or prostate cancer. Participants' responses to the online survey are measured at one point in time - the time at which the participant takes the survey.


Condition Intervention
Colorectal Cancer
Colon Cancer
Prostate Cancer
 Other: Rating and Ranking Task
Other: Discrete Choice Task
Other: Balance Sheet Task

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Health Services Research
Official Title: A Comparison of the Effect of a Conjoint Analysis Based Values Clarification Exercise, Rating and Ranking Exercise, and Balance Sheet for Colorectal Cancer Screening and Prostate Cancer Screening Decision Making

Resource links provided by NLM:

U.S. FDA Resources

Further study details as provided by University of North Carolina, Chapel Hill:

Primary Outcome Measures:
  • Participant-reported most important attribute from survey [ Time Frame: 1 day ] [ Designated as safety issue: No ]
    The single most important colon cancer or prostate cancer screening attribute indicated by the participant surveys. Each participant will be randomly assigned to take one of three survey versions: either (1) a conjoint analysis task wherein they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; (2) a rating and ranking task for these same attributes; or (3) they will make a choice after viewing a balance sheet of attributes.


Secondary Outcome Measures:
  • Participant-reported intent to undergo screening from survey [ Time Frame: 1 day ] [ Designated as safety issue: No ]
    the number of participants who state they plan to be screened for condition

  • Unlabeled screening test options [ Time Frame: 1 day ] [ Designated as safety issue: No ]
    choice on a single question among unlabeled screening test options


Enrollment: 1831
Study Start Date: July 2011
Study Completion Date: October 2011
Primary Completion Date: October 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Rating and Ranking Group
A group of individuals from the United States and Australia who complete a rating and ranking task.
 Other: Rating and Ranking Task
Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a rating and ranking format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.
Discrete Choice Group
A group of individuals from the United States and Australia who complete a discrete choice experiment task.
 Other: Discrete Choice Task
Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a discrete choice format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.
Balance Sheet Group
Individuals from the United States and Australia who will complete an implicit values clarification task
 Other: Balance Sheet Task
Individuals who are randomized to the rating and raking arm will be asked to complete an informational task in a balance sheet format. The task will help individuals clarify their opinions and preferences regarding colon cancer and prostate cancer screening.

Detailed Description:

This study will compare effect of a conjoint analysis based values clarification exercise, ranking and rating, and a balance sheet on screening test preferences for colorectal cancer screening and prostate cancer screening using online surveys. Recruitment will be conducted through Survey Sampling International (SSI), an online survey research firm. Participants will be randomized to one of three arms to take online surveys. Patients will complete either a conjoint analysis task, in which they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; a rating and ranking task for these same attributes; or they will make a choice after viewing a balance sheet of attributes.

  Eligibility

Ages Eligible for Study:   50 Years to 75 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Colorectal cancer

    • men and women, ages 50-75, who can speak and read English.

  • Prostate cancer screening

    • men, ages 50-75, who can speak and read English.

Exclusion Criteria:

  • Colorectal Cancer

    • individuals with a previous personal or family history of colon cancer, personal history of polyps, or inflammatory bowel disease will be excluded.

  • Prostate cancer

    • individuals with a previous personal or family history of prostate cancer will be excluded
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01558583

Locations
United States, North Carolina
Cecil G. Sheps Center for Health Services Research
Chapel Hill, North Carolina, United States, 27599
Sponsors and Collaborators
University of North Carolina, Chapel Hill
Investigators
Principal Investigator: Michael Pignone, MD, MPH University of North Carolina, Chapel Hill
  More Information

No publications provided by University of North Carolina, Chapel Hill

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Responsible Party: Michael Pignone, MD, MPH, Professor of Medicine, University of North Carolina, Chapel Hill
ClinicalTrials.gov Identifier: NCT01558583     History of Changes
Other Study ID Numbers: UCRF-CARR2-11-0861
Study First Received: February 7, 2012
Last Updated: July 9, 2012
Health Authority: United States: Institutional Review Board

Keywords provided by University of North Carolina, Chapel Hill:
Colon
Prostate
Cancer

Additional relevant MeSH terms:
Colonic Neoplasms
Colorectal Neoplasms
Prostatic Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Neoplasms
Digestive System Diseases
 Gastrointestinal Diseases
Colonic Diseases
Intestinal Diseases
Rectal Diseases
Genital Neoplasms, Male
Urogenital Neoplasms
Genital Diseases, Male
Prostatic Diseases

ClinicalTrials.gov processed this record on May 21, 2013