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

April 21, 2017 updated by: University of North Carolina, Chapel Hill

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

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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.

Study Type

Interventional

Enrollment (Actual)

1831

Phase

  • Not Applicable

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

  • United States
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • Cecil G. Sheps Center for Health Services Research

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

50 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

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

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

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: 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.
Other: 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.
Other: 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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Participant-reported most important attribute from survey
Time Frame: 1 day
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.
1 day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Participant-reported intent to undergo screening from survey
Time Frame: 1 day
the number of participants who state they plan to be screened for condition
1 day
Unlabeled screening test options
Time Frame: 1 day
choice on a single question among unlabeled screening test options
1 day

Collaborators and Investigators

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

Sponsor

University of North Carolina, Chapel Hill

Investigators

  • Principal Investigator: Michael Pignone, MD, MPH, University of North Carolina, Chapel Hill

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.

General Publications

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

July 1, 2011

Primary Completion (Actual)

October 1, 2011

Study Completion (Actual)

October 1, 2011

Study Registration Dates

First Submitted

February 7, 2012

First Submitted That Met QC Criteria

March 19, 2012

First Posted (Estimate)

March 20, 2012

Study Record Updates

Last Update Posted (Actual)

April 25, 2017

Last Update Submitted That Met QC Criteria

April 21, 2017

Last Verified

July 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UCRF-CARR2-11-0861

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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