CClinicalTrials.gg
CompletedNCT00251862Updated Dec 27, 2013Results posted

Shared Decision-Making for Colorectal Cancer Screening

An interventional study of Web-based decision aid plus personalized risk assessment and Web-based decision aid alone in Colorectal Cancer, sponsored by Agency for Healthcare Research and Quality (AHRQ). Completed at 2 sites in United States. Open to participants aged 50 Years to 75 Years. Per ClinicalTrials.gov, last updated 2013-12-27.

Sponsored by Agency for Healthcare Research and Quality (AHRQ) · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
825
Allocation
Randomized
Ages
50 Years to 75 Years
Sex
All
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Study summary

The overall objective of this study is to conduct a three-arm randomized controlled trial to evaluate the impact of an interactive, web-based decision aid on shared decision-making and patient adherence to colorectal cancer (CRC) screening recommendations.

Read the detailed description

Colorectal cancer (CRC) is the second leading cause of cancer-related death and third most commonly diagnosed cancer among men and women in the United States. Screening has been shown to be a cost-effective strategy for reducing both CRC mortality through early detection and incidence through the detection and removal of precancerous adenomatous polyps (adenomas). Despite a compelling rationale and widespread endorsement by authoritative groups, screening rates remain far below those necessary to achieve significant reductions in CRC mortality or incidence. Poor patient acceptance and non-adherence to screening recommendations are partly responsible for low screening rates. Shared decision-making has been advocated as a potentially effective yet unproven strategy for addressing this problem. Implicit in this approach is the need for an unbiased decision aid that not only educates patients about the pros and cons of the different strategies so as to enable them to identify a preferred strategy but also empowers patients to take a proactive role in the decision-making process, thereby increasing satisfaction and promoting adherence. From a logistical standpoint, the decision aid must also be easy to implement in the ambulatory setting so as to maximize use but minimize demands on physician time and office resources. To address this need, we have developed an interactive, web-based decision aid and implementation strategy for use in routine clinical practice.

Comparison(s): Average risk subjects assigned to one of two intervention arms (decision aid alone versus decision aid plus personalized risk assessment with feedback) compared to a control arm(generic website that discusses lifestyle changes that can reduce overall cancer risk).

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Conditions studied

  • Colorectal Cancer

Keywords

  • Colorectal cancer screening
  • Shared decision-making
  • Decision aid
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In context

Colorectal Neoplasms

5,599 studies on the registry are indexed under Colorectal Neoplasms; 1,459 are open to participants now.

This study's enrollment of 825 is above the median of 77 across 4,123 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

Agency for Healthcare Research and Quality (AHRQ) is the lead sponsor of 32 studies on the registry; none are open to participants now.

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

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Who can participate

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

Inclusion criteria

  • Asymptomatic average-risk subjects
  • Under the direct care of one of participating site's staff (attending) physicians or physician extenders;
  • No prior screening other than fecal occult blood testing (FOBT);
  • No major co-morbidities that preclude CRC screening by any method

Exclusion criteria

Exclusion Criteria:

  • Prior CRC screening by any method other than FOBT occult blood testing
  • High-risk condition (personal history of colorectal cancer or polyps, family history of colorectal cancer or polyps involving one or more first degree relatives, chronic inflammatory bowel disease)
  • Lack of fluency in written and spoken English (since decision aid and personalized risk assessment tool will be in English only due to funding issues);
  • Comorbidities that preclude CRC screening by any method
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Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Care provider)
Enrollment
825 participants (actual)

Study arms

  • Experimental
    Decision aid plus YourDiseaseRisk

    Patients viewed the decision aid and completed the Your Disease Risk risk assessment tool prior to visit with their primary care provider.

    Behavioral: Web-based decision aid plus personalized risk assessment

  • Experimental
    Decision aid alone

    Patient's viewed decision aid only prior to a visit with their primary care provider.

    Behavioral: Web-based decision aid alone

  • Sham comparator
    III

    Standard care

    Behavioral: Generic website

Interventions

  • BehavioralWeb-based decision aid plus personalized risk assessment

    Patients review a computer-based decision aid that discuss the pros and cons of of 5 recommended CRC screening options and provides personalized 10-year estimates of CRC risk prior to meeting with their provider to discuss CRC screening.

    Also known as: Decision aid, personalized risk assessment tool

  • BehavioralWeb-based decision aid alone

    Patients review a computer-based decision aid that discuss the pros and cons of the 5 recommended CRC screening options prior to meeting with their provider to discuss CRC screening.

    Also known as: Decision aid

  • BehavioralGeneric website

    Patients review a generic website that discuss ways to reduce overall cancer risk.

    Also known as: Control condtion

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What researchers measure

Primary outcomes

  1. Patient Adherence (Test Completion)

    Completion of a screening test within 12 months of the study visit.

    Time frame: 12 months post-intervention

Secondary outcomes

  1. Patient Knowledge

    Knowledge was assessed at baseline (pretest) and at the time of the exit survey (posttest) based on responses to a 12-item questionnaire (True/False/Don't know) that inquired about CRC risk factors, the rationale and goals of screening, and age at which screening should begin. Cumulative knowledge scores (range, 0-12) were derived by summing correct responses to the 12 individual knowledge questions.

    Time frame: Immediate post-intervention study visit

  2. Patient Satisfaction With Decision Making Process

    Patient satisfaction with the decision-making process (SDMP) was assessed using the validated 12-item Satisfaction with the Decision-Making Process scale. Five ordered response categories were used for each item. Each response was assigned a point score ranging from 1 for "strongly disagree" (or "poor") to 5 for "strongly agree" (or "excellent"). A cumulative score was calculated based on the summed response scores for each item (maximum score = 60). Mean item substitution was used to impute missing data.

    Time frame: Immediate post-intervention primary care provider (PCP) visit

  3. Screening Intentions

    Screening intentions were also assessed as part of the posttest. Subjects were asked how sure they were that they would schedule an appointment to get screened for colorectal cancer and how sure they were that they would complete the screening test they scheduled. An ordered 5-point response frame was used ranging from 1 for "not at all sure" to 5 for "completely sure".

    Time frame: Immediate post-intervention study visit

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Results

Posted Dec 2, 2013

Participant flow

Participant flow — Overall Study
MilestoneDA + YDRDA AloneControl
Started280269276
Completed280269276
Not completed000

Outcome measures

PrimaryPatient Adherence (Test Completion)

Completion of a screening test within 12 months of the study visit.

Time frame:
12 months post-intervention
Reported as:
Number · participants
Patient Adherence (Test Completion)
participantsDA + YDRDA AloneControl
Patient Adherence (Test Completion)10411696
Statistical analysis
  • DA + YDR vs Control · Chi-squared · p = 0.046 · Absolute difference: 8.3 · 95% CI -2.2 to 14.2
  • DA + YDR vs DA Alone · Chi-squared · p = 0.153 · Absolute difference: 6.0 · 95% CI 0.2 to 16.5
SecondaryPatient Knowledge

Knowledge was assessed at baseline (pretest) and at the time of the exit survey (posttest) based on responses to a 12-item questionnaire (True/False/Don't know) that inquired about CRC risk factors, the rationale and goals of screening, and age at which screening should begin. Cumulative knowledge scores (range, 0-12) were derived by summing correct responses to the 12 individual knowledge questions.

Time frame:
Immediate post-intervention study visit
Reported as:
Mean · units on a scale
Patient Knowledge
units on a scaleDA + YDRDA AloneControl
Patient Knowledge10.7 ± 1.910.9 ± 1.68.6 ± 2.6
Statistical analysis
  • DA + YDR vs DA Alone vs Control · ANCOVA · p = <0.001 (Pairwise comparisons: DA+YDR vs. Control, P\<0.001; DA alone vs. Control, P\<0.001)
SecondaryPatient Satisfaction With Decision Making Process

Patient satisfaction with the decision-making process (SDMP) was assessed using the validated 12-item Satisfaction with the Decision-Making Process scale. Five ordered response categories were used for each item. Each response was assigned a point score ranging from 1 for "strongly disagree" (or "poor") to 5 for "strongly agree" (or "excellent"). A cumulative score was calculated based on the summed response scores for each item (maximum score = 60). Mean item substitution was used to impute missing data.

Time frame:
Immediate post-intervention primary care provider (PCP) visit
Reported as:
Mean · units on a scale
Patient Satisfaction With Decision Making Process
units on a scaleDA + YDRDA AloneControl
Patient Satisfaction With Decision Making Process49.0 ± 6.249.7 ± 6.445.5 ± 7.8
Statistical analysis
  • DA + YDR vs DA Alone vs Control · ANCOVA · p = <0.001
SecondaryScreening Intentions

Screening intentions were also assessed as part of the posttest. Subjects were asked how sure they were that they would schedule an appointment to get screened for colorectal cancer and how sure they were that they would complete the screening test they scheduled. An ordered 5-point response frame was used ranging from 1 for "not at all sure" to 5 for "completely sure".

Time frame:
Immediate post-intervention study visit
Reported as:
Mean · units on a scale
Screening Intentions
units on a scaleDA + YDRDA AloneControl
Screening Intentions4.4 ± 1.04.4 ± 1.04.0 ± 1.3
Statistical analysis
  • DA + YDR vs DA Alone vs Control · ANCOVA · p = <0.001

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
DA + YDR—0/280 (0%)0/280 (0%)
DA Alone—0/269 (0%)0/269 (0%)
Control—0/276 (0%)0/276 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)DA + YDRDA AloneControlTotal
<=18 years0000
Between 18 and 65 years232234230696
>=65 years483546129
Sex: Female, Male
Sex: Female, Male(Participants)DA + YDRDA AloneControlTotal
Female163164159486
Male117105117339
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)DA + YDRDA AloneControlTotal
Hispanic or Latino18101543
Not Hispanic or Latino262259261782
Unknown or Not Reported0000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)DA + YDRDA AloneControlTotal
American Indian or Alaska Native0000
Asian37212
Native Hawaiian or Other Pacific Islander0000
Black or African American172160180512
White999688283
More than one race0000
Unknown or Not Reported66618
Region of Enrollment
Region of Enrollment(participants)DA + YDRDA AloneControlTotal
United States280269276825
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Study locations

2 sites
  • Boston Medical Center
    Boston, Massachusetts 02118, United States
  • South Boston Community Health Center
    Boston, Massachusetts 02127, United States
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References and documents

Publications

  • Schroy PC 3rd, Glick JT, Robinson PA, Lydotes MA, Evans SR, Emmons KM. Has the surge in media attention increased public awareness about colorectal cancer and screening? J Community Health. 2008 Feb;33(1):1-9. doi: 10.1007/s10900-007-9065-5. PubMed 18080203 ↗
  • Schroy PC 3rd, Glick JT, Robinson P, Lydotes MA, Heeren TC, Prout M, Davidson P, Wong JB. A cost-effectiveness analysis of subject recruitment strategies in the HIPAA era: results from a colorectal cancer screening adherence trial. Clin Trials. 2009 Dec;6(6):597-609. doi: 10.1177/1740774509346703. Epub 2009 Nov 23. PubMed 19933718 ↗
  • Schroy PC 3rd, Mylvaganam S, Davidson P. Provider perspectives on the utility of a colorectal cancer screening decision aid for facilitating shared decision making. Health Expect. 2014 Feb;17(1):27-35. doi: 10.1111/j.1369-7625.2011.00730.x. Epub 2011 Sep 8. PubMed 21902773 ↗
  • Schroy PC 3rd, Emmons K, Peters E, Glick JT, Robinson PA, Lydotes MA, Mylvanaman S, Evans S, Chaisson C, Pignone M, Prout M, Davidson P, Heeren TC. The impact of a novel computer-based decision aid on shared decision making for colorectal cancer screening: a randomized trial. Med Decis Making. 2011 Jan-Feb;31(1):93-107. doi: 10.1177/0272989X10369007. Epub 2010 May 18. PubMed 20484090 ↗
  • Schroy PC 3rd, Emmons KM, Peters E, Glick JT, Robinson PA, Lydotes MA, Mylvaganam SR, Coe AM, Chen CA, Chaisson CE, Pignone MP, Prout MN, Davidson PK, Heeren TC. Aid-assisted decision making and colorectal cancer screening: a randomized controlled trial. Am J Prev Med. 2012 Dec;43(6):573-83. doi: 10.1016/j.amepre.2012.08.018. PubMed 23159252 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 27, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00251862
Lead sponsor
Agency for Healthcare Research and Quality (AHRQ)
Responsible party
Sponsor
First posted
Nov 11, 2005
Start date
Jan 2005
Primary completion
Dec 2010
Completion
Dec 2010
Results posted
Dec 2, 2013
Last update
Dec 27, 2013

Study contacts

Paul C. Schroy III, MD, MPH
principal investigator · Boston Medical Center

Oversight

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

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