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CompletedNCT01415479Updated Apr 30, 2013

Trial of a Computer-Based Presentation of Quantitative Information About Colorectal Cancer Screening

An interventional study of Control and Quantitative in Colonic Neoplasms, sponsored by Indiana University. Completed at 1 site in United States. Open to participants aged 50 Years to 75 Years. Per ClinicalTrials.gov, last updated 2013-04-30.

Sponsored by Indiana University · Not applicable, Interventional, and Screening

Phase
Not applicable
Study type
Interventional
Enrollment
212
Allocation
Randomized
Ages
50 Years to 75 Years
Sex
All
01

Study summary

Fifty thousand people die from colorectal cancer (CRC) every year, making it the second leading cause of death from cancer in the United States. And although there are multiple screening tests that reduce the morbidity and mortality of this disease, less than 60% of eligible individuals are up to date with recommended screening.

One of the challenges to improving screening is helping patients understand the range of approved tests, including colonoscopy, sigmoidoscopy, and stool testing (such as fecal immunochemical testing (FIT)). Patients rarely consider all their options, partly due to the limited time they have to learn about them during busy doctor's visits.

Computer-based presentations, including decision aids, are a promising tool for improving patient understanding in this and other areas, by giving patients significant amounts of information.

But there are important questions about how to design such presentations, including whether they should provide quantitative data about the risks and benefits of screening. Some experts feel that these numbers and graphs are necessary for fully informed decision-making, while others are concerned that they may confuse patients or dissuade them from screening.

The investigators have created and pilot tested a computer-based presentation of quantitative information about CRC screening. The investigators found that subjects who viewed the program in a non-healthcare setting exhibited significantly increased interest in screening. In addition, the investigators tested a version of the program that includes a "nudge" towards stool testing with FIT, as a way of encouraging individuals who are confused to undergo some form of screening. In our testing, receiving the nudge was associated with a significant increase in interest in FIT.

The investigators now seek to conduct a randomized, controlled study of our computer-based presentation with Clarian patients who are due for CRC screening. All subjects will first view a general video about CRC screening and then will be randomly placed into four groups (using a 2x2 design), to receive quantitative information (or not), and a nudge towards FIT (or not).

The results will determine whether a presentation of quantitative information can increase patient understanding, quality of decision-making, and uptake of CRC screening. The results will serve as pilot data for a larger, externally funded study of the effect of individualized ("personalized") quantitative information in this area

02

Conditions studied

  • Colonic Neoplasms

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Keywords

  • Colon cancer
  • Screening
  • Decision-making
03

In context

Colonic Neoplasms

1,432 studies on the registry are indexed under Colonic Neoplasms; 357 are open to participants now.

This study's planned enrollment of 212 is above the median of 90 across 1,034 interventional studies indexed under Colonic Neoplasms.

Browse Colonic Neoplasms studies →

Lead sponsor

Indiana University is the lead sponsor of 958 studies on the registry; 200 are open to participants now.

Of its 142 completed or terminated interventional studies of FDA-regulated products, 112 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 50-75 years old
  • No colonoscopy performed in last 10 years, sigmoidoscopy in last 5 years or fecal occult blood testing (including FIT) in last 1 year, and
  • Upcoming appointment with primary care physician at three primary care sites of IU Health (previously sites of the Methodist Medical Group (MMG)): Internal Medicine and Pediatrics Fishers, Family \& Internal Medicine South, or Family \& Internal Medicine East Washington.

Exclusion criteria

Exclusion Criteria:

  • Undergoing workup for symptoms consistent with colon cancer, such as weight loss or rectal bleeding
  • Diagnosis or medical history conferring elevated risk for CRC including previous polypectomy or colon cancer, inflammatory bowel disease, certain inherited syndromes, or a significant family history of CRC, or
  • Inability to speak English and to fill out a questionnaire written in English.
05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Randomized
Intervention model
Factorial assignment
Masking
None (open label)
Enrollment
212 participants (estimated)

Study arms

  • Experimental
    Quantitative

    Subjects view: 1. Computer-based presentation regarding colorectal cancer (CRC) and screening for CRC with colonoscopy, sigmoidoscopy, or stool testing. Includes a video from the American Cancer Society. 2. Computer-based presentation providing quantitative information regarding (a) the lifetime average probability of getting CRC or dying from it, (b) the reduction in mortality provided by undergoing regular screening with colonoscopy, and (c) the reduction in mortality provided by undergoing regular screening with fecal immunochemical testing (FIT)

    Behavioral: Control · Behavioral: Quantitative

  • Experimental
    Default

    Subjects view: 1. Computer-based presentation regarding colorectal cancer (CRC) and screening for CRC with colonoscopy, sigmoidoscopy, or stool testing. Includes a video from the American Cancer Society. 2. Computer-based presentation that encourages subjects who are unwilling to undergo colonoscopy or are unsure about whether to undergo screening to get tested with Fecal Immunochemical Testing (FIT).

    Behavioral: Control · Behavioral: Default

  • Experimental
    Quantitative + Default

    Subjects view: 1. Computer-based presentation regarding colorectal cancer (CRC) and screening for CRC with colonoscopy, sigmoidoscopy, or stool testing. Includes a video from the American Cancer Society. 2. Computer-based presentation providing quantitative information regarding (a) the lifetime average probability of getting CRC or dying from it, (b) the reduction in mortality provided by undergoing regular screening with colonoscopy, and (c) the reduction in mortality provided by undergoing regular screening with fecal immunochemical testing (FIT) 3. Computer-based presentation that encourages subjects who are unwilling to undergo colonoscopy or are unsure about whether to undergo screening to get tested with Fecal Immunochemical Testing (FIT).

    Behavioral: Control · Behavioral: Quantitative · Behavioral: Default

  • Active comparator
    Control

    Subjects view a computer-based presentation regarding colorectal cancer (CRC) and available screening tests for CRC, primarily a video produced by the American Cancer Society.

    Behavioral: Control

Interventions

  • BehavioralControl

    Computer-based presentation regarding colorectal cancer (CRC) and screening for CRC with colonoscopy, sigmoidoscopy, or stool testing. Includes a video from the American Cancer Society.

  • BehavioralQuantitative

    Computer-based presentation providing quantitative information regarding (a) the lifetime average probability of getting CRC or dying from it, (b) the reduction in mortality provided by undergoing regular screening with colonoscopy, and (c) the reduction in mortality provided by undergoing regular screening with fecal immunochemical testing (FIT)

  • BehavioralDefault

    Computer-based presentation that encourages subjects who are unwilling to undergo colonoscopy or are unsure about whether to undergo screening to get tested with Fecal Immunochemical Testing (FIT). This is labeled the "Default" intervention since it attempts to shift the "default" choice from "no screening" to FIT.

06

What researchers measure

Primary outcomes

  1. Intention to undergo CRC screening in the next six months

    Multiple choice question assessing subject's interest in getting a colon screening test in the next 6 months (choices: definitely, probably, may or may not, probably not, or definitely not).

    Time frame: Day 1: Immediately before and after viewing intervention (at the same visit)

Secondary outcomes

  1. Preferred CRC screening test

    Multiple choice question: which colon test the subject would choose if he or she was having one (choices: stool test, colonoscopy, other, or don't know).

    Time frame: Day 1: Immediately before and after viewing intervention (at the same visit)

  2. Knowledge of CRC risk and the benefit of CRC screening

    8 True/False questions and 4 Multiple choice questions

    Time frame: Day 1: Immediately before and after viewing intervention (at the same visit)

  3. Decision conflict

    Decision Conflict Scale

    Time frame: Day 1: Immediately before and after viewing intervention (at the same visit)

  4. Completion of CRC screening

    Completion of colonoscopy, fecal immunochemical testing (FIT), or other CRC screening test, based on personal report and medical record.

    Time frame: 6 months post-intervention

07

Study locations

1 site
  • IU Health
    Indianapolis, Indiana 46202, United States
08

References and documents

Publications

  • Schwartz PH, Perkins SM, Schmidt KK, Muriello PF, Althouse S, Rawl SM. Providing Quantitative Information and a Nudge to Undergo Stool Testing in a Colorectal Cancer Screening Decision Aid: A Randomized Clinical Trial. Med Decis Making. 2017 Aug;37(6):688-702. doi: 10.1177/0272989X17698678. Epub 2017 Apr 11. PubMed 28398836 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 30, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01415479
Lead sponsor
Indiana University
Responsible party
Peter Schwartz (Assistant Professor of Medicine, Indiana University) — Principal investigator
First posted
Aug 12, 2011
Start date
Aug 2011
Primary completion
Aug 2012
Completion
Mar 2013
Last update
Apr 30, 2013

Study contacts

Peter H. Schwartz, MD, PhD
principal investigator · Indiana University School of Medicine

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2013. You cannot join it, but the record below documents what was studied.

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