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Promoting Informed Decisions About Cancer Screening in Older Adults

Promoting Informed Decisions About Colorectal Cancer Screening in Older Adults (PRIMED Study): Randomized Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03959696
Acronym
PRIMED
Enrollment
536
Registered
2019-05-22
Start date
2019-05-01
Completion date
2022-08-30
Last updated
2025-01-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colorectal Cancer Screening

Keywords

Shared Decision Making, Patient Reported Outcomes, Continuing Medical Education, early detection of cancer, colonoscopy, colorectal cancer

Brief summary

This project aims to examine the impact of different interventions designed to help individualize colorectal cancer (CRC) screening decisions in adults aged 76-85. Clinicians will be assigned by chance to one of two arms. In the Intervention arm, clinician participants will complete a training course and will also be notified of patients in the target age group who are due for a discussion about CRC screening. In the Comparator arm, clinician participants will be notified of their patients in the target age group with an upcoming visit who are due for a discussion about CRC screening. The investigators expect that patients seen by clinicians in the intervention arm will report more involvement in the decision making process, be more knowledgeable about the risks and benefits of CRC screening, and will have better quality decisions. Further, the investigators expect that the physicians in the intervention arm will have greater confidence in and demonstrate more skills for conducting shared decision making conversations as compared to those in the control arm.

Detailed description

This study will advance understanding of how to engage and inform older adults in decisions about whether to continue or stop colorectal cancer (CRC) screening. The study will randomly assign about 50 primary care clinicians from 5 different sites to one of two different arms. In the Intervention arm, clinician participants will complete a training course and will also be notified of patients aged 76-85 with an upcoming visit who are due for a discussion about CRC screening. In the Comparator arm, clinician participants will be notified of their patients in the target age group with an upcoming visit who are due for a discussion about CRC screening. The study staff will collect surveys from about 500 eligible patients of participating physicians shortly after their visit to determine the impact of the intervention on patient-reported measures including the amount of shared decision making, knowledge, and preferences for cancer screening. Study staff will follow patients to track colorectal cancer screening tests in the 12 months following the visit and will survey some patients again at 12 months to examine any barriers to follow through with their preferred approach. The study will also assess physician's ability to demonstrate shared decision making skills for cancer screening decisions in simulated patient interactions. Caregivers, if identified by a patient participant, will also complete a short survey evaluating the visit.

Interventions

BEHAVIORALNotification

Clinicians will be notified of their patients aged 76-85 with an upcoming, non urgent visit who are due for colorectal cancer screening.

BEHAVIORALTraining

The 2-hour continuing medical education course in shared decision making, simulated patient interaction to practice skills, and monthly calls for a year to review difficult cases with clinical and shared decision making experts.

Sponsors

MaineHealth
CollaboratorOTHER
Brigham and Women's Hospital
CollaboratorOTHER
Newton-Wellesley Hospital
CollaboratorOTHER
North Shore Medical Center
CollaboratorOTHER
Patient-Centered Outcomes Research Institute
CollaboratorOTHER
Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Masking description

Physician participants will not be blinded to the study arm. Patients will not be given any information on their physician's assigned arm. Statistician will be blinded to the assignment when analyzing the results.

Intervention model description

Two-arm, multi-site cluster randomized controlled trial.

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

For Clinicians, eligibility will not be decided by sex, gender, or age Inclusion Criteria for clinicians: * Primary Care Physician (MD or NP) * Manages a panel of patients * Has ≥20 potentially eligible patients (age 76-85 and due for colorectal cancer screening) in their panel * Practices at participating site

Exclusion criteria

for clinicians: * Residents, medical students * Does not manage panel of patients (e.g. urgent care clinician) Patients of participating clinicians will be enrolled to evaluate the impact of the interventions. Inclusion Criteria for patients: * Adults, age 76-85 at the time of the scheduled visit * Scheduled for non-urgent office visit with a participating clinician during the study period * Due or overdue for colorectal cancer screening (e.g. never been screened, 1 year or less to follow-up interval indicated on previous test).

Design outcomes

Primary

MeasureTime frameDescription
Shared Decision Making Process (SDMP) Scale ScoreAbout 1 week after the physician visitThe SDMP scale is a short, patient-reported scale that asks patients about discussion of options, pros and cons of colonoscopy and discussion of patients' preferences. Total scores range from 0-4, with higher scores indicating more shared decision making.

Secondary

MeasureTime frameDescription
Patients' Colorectal Cancer Screening Knowledge Score1 week after physician visitColorectal Cancer (CRC) Screening Knowledge will be assessed with multiple choice knowledge items adapted from the CRC Decision Quality Instrument. A total score from 0-100% will be calculated based on the number of correct answers, with higher scores indicating higher knowledge.
Percentage of Patients Who Received Preferred Approach to Colorectal Cancer Testing1 week after physician visit (preference); 12 months after physician visit (testing)Colorectal Cancer Screening Preference assessed with 1 item adapted from the CRC Decision Quality Instrument will be compared with the screening approach followed (assessed via chart review and patient report) to determine the percentage of patients who received preferred approach to testing.
Physician's Shared Decision Making SkillsBaselineThe transcripts from the simulated patient interactions will be scored by two coders using Braddock's Informed Decision Making framework. Total scores range from 0-9 with higher scores indicating more shared decision making elements in the interaction.
Colorectal Cancer Screening Rates1 yearThe chart review results of cancer screening rates for patients enrolled in the study.
Clinician Satisfaction With the Visit1 week post visitThe percentage of study patient visits where the clinicians' reported that they were 'extremely or very satisfied' will be compared across arms.

Other

MeasureTime frameDescription
Companion SDM Process Scale ScoreAbout a week after physician visitCompanions will complete an adapted version of the SDM Process survey to provide a different perspective on the conversation and involvement of the patient. A total score will range from 0-4, with higher scores indicating more shared decision making.
Clinician Attitude Toward Shared Decision MakingBaselineThe investigators will use five items to assess clinicians' confidence in Shared Decision Making Skills and Barriers to SDM. A total confidence score (0-20) with higher scores indicating higher confidence and a barrier score (0-8) higher scores indicating more barriers will be calculated.

Countries

United States

Participant flow

Recruitment details

From May - August 2019, physicians enrolled onto the study from Internal Medicine and Family Medicine practices affiliated with five hospital networks-three academic medical centers and two community hospitals in the Northeast US. We targeted about 10 patients per physician from October 2019-April 2021. We anticipated enrolling 500 patients. Enrolled patients were able to invite a companion, if applicable

Participants by arm

ArmCount
Notification Only Arm/Providers
Clinician participants will be notified of their patients aged 76-85 with an upcoming visit who are due for colorectal cancer screening. Notification: Clinicians will be notified of their patients aged 76-85 with an upcoming, non urgent visit who are due for colorectal cancer screening.
31
Notification Only Arm/Patients
Eligible patients who completed a visit with a participating physician in the 'notification only' arm. Clinician participants will be notified of their patients aged 76-85 with an upcoming visit who are due for colorectal cancer screening. Notification: Clinicians will be notified of their patients aged 76-85 with an upcoming, non urgent visit who are due for colorectal cancer screening.
230
Training and Notification Arm/Providers
Clinician participants will be notified of their patients aged 76-85 with an upcoming visit who are due for colorectal cancer screening and will complete a two-hour shared decision making communication skills training course that includes case studies, interactive exercises, and lecture content. Notification: Clinicians will be notified of their patients aged 76-85 with an upcoming, non urgent visit who are due for colorectal cancer screening. Training: The 2-hour continuing medical education course in shared decision making, simulated patient interaction to practice skills, and monthly calls for a year to review difficult cases with clinical and shared decision making experts.
28
Training and Notification Only Arm/Patients
Eligible patients who completed a visit with a participating physician in the 'training and notification' arm. Clinician participants will be notified of their patients aged 76-85 with an upcoming visit who are due for colorectal cancer screening and will complete a two-hour shared decision making communication skills training course that includes case studies, interactive exercises, and lecture content. Notification: Clinicians will be notified of their patients aged 76-85 with an upcoming, non urgent visit who are due for colorectal cancer screening. Training: The 2-hour continuing medical education course in shared decision making, simulated patient interaction to practice skills, and monthly calls for a year to review difficult cases with clinical and shared decision making experts.
236
Notification Only Arm / Companions
Enrolled patients were able to invite a companion, if applicable
5
Training and Notification Arm/ Companions
Enrolled patients were able to invite a companion, if applicable
6
Total536

Baseline characteristics

CharacteristicNotification Only Arm/ProvidersTotalTraining and Notification Arm/ CompanionsNotification Only Arm / CompanionsTraining and Notification Only Arm/PatientsTraining and Notification Arm/ProvidersNotification Only Arm/Patients
Age, Continuous52.4 years
STANDARD_DEVIATION 9
79.4 years
STANDARD_DEVIATION 2.8
77 years
STANDARD_DEVIATION 12
70 years
STANDARD_DEVIATION 11
79.5 years
STANDARD_DEVIATION 2.8
53.1 years
STANDARD_DEVIATION 10
79.2 years
STANDARD_DEVIATION 2.8
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants6 Participants0 Participants0 Participants4 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
30 Participants509 Participants0 Participants0 Participants229 Participants28 Participants222 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants21 Participants6 Participants5 Participants3 Participants0 Participants6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
7 Participants15 Participants0 Participants0 Participants3 Participants4 Participants1 Participants
Race (NIH/OMB)
Black or African American
2 Participants10 Participants0 Participants0 Participants4 Participants0 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants31 Participants6 Participants5 Participants10 Participants0 Participants10 Participants
Race (NIH/OMB)
White
22 Participants480 Participants0 Participants0 Participants219 Participants24 Participants215 Participants
Region of Enrollment
United States
31 participants536 participants6 participants5 participants236 participants28 participants230 participants
Sex: Female, Male
Female
16 Participants286 Participants3 Participants4 Participants138 Participants14 Participants111 Participants
Sex: Female, Male
Male
15 Participants250 Participants3 Participants1 Participants98 Participants14 Participants119 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 310 / 2300 / 280 / 2360 / 60 / 5
other
Total, other adverse events
0 / 310 / 2300 / 280 / 2360 / 60 / 5
serious
Total, serious adverse events
0 / 310 / 2300 / 280 / 2360 / 60 / 5

Outcome results

Primary

Shared Decision Making Process (SDMP) Scale Score

The SDMP scale is a short, patient-reported scale that asks patients about discussion of options, pros and cons of colonoscopy and discussion of patients' preferences. Total scores range from 0-4, with higher scores indicating more shared decision making.

Time frame: About 1 week after the physician visit

Population: This analytic sample includes patients who completed the survey and completed data on all four SDM Process questions.

ArmMeasureValue (MEAN)Dispersion
Notification Only Arm/ PatientsShared Decision Making Process (SDMP) Scale Score1.1 Score on a scaleStandard Deviation 1.2
Training and Notification Arm/ PatientsShared Decision Making Process (SDMP) Scale Score1.5 Score on a scaleStandard Deviation 1.2
Comparison: The null hypothesis SDMP is equal in the two armsp-value: 0.01195% CI: [0.08, 0.64]Regression, Linear
Secondary

Clinician Satisfaction With the Visit

The percentage of study patient visits where the clinicians' reported that they were 'extremely or very satisfied' will be compared across arms.

Time frame: 1 week post visit

Population: 59 participating physicians completed post-visit surveys for 376 participating patients.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Notification Only Arm/ PatientsClinician Satisfaction With the Visit138 Participants
Training and Notification Arm/ PatientsClinician Satisfaction With the Visit171 Participants
p-value: 0.64Chi-squared
Secondary

Colorectal Cancer Screening Rates

The chart review results of cancer screening rates for patients enrolled in the study.

Time frame: 1 year

Population: 466 enrolled patients whose chart was reviewed for completion of cancer screening

ArmMeasureValue (NUMBER)
Notification Only Arm/ PatientsColorectal Cancer Screening Rates29.1 percentage of participants
Training and Notification Arm/ PatientsColorectal Cancer Screening Rates38.6 percentage of participants
Comparison: Null hypothesis was equal screening rate in both armsp-value: 0.03295% CI: [0.9, 18]Chi-squared
Secondary

Patients' Colorectal Cancer Screening Knowledge Score

Colorectal Cancer (CRC) Screening Knowledge will be assessed with multiple choice knowledge items adapted from the CRC Decision Quality Instrument. A total score from 0-100% will be calculated based on the number of correct answers, with higher scores indicating higher knowledge.

Time frame: 1 week after physician visit

Population: The data is of patients who answered at least 4 of the 7 questions.

ArmMeasureValue (MEAN)Dispersion
Notification Only Arm/ PatientsPatients' Colorectal Cancer Screening Knowledge Score61 score on a scaleStandard Deviation 18.8
Training and Notification Arm/ PatientsPatients' Colorectal Cancer Screening Knowledge Score63 score on a scaleStandard Deviation 17.7
Comparison: The null hypothesis is that the two arms have the same knowledge scorep-value: 0.3695% CI: [-2.01, 5.55]Regression, Linear
Secondary

Percentage of Patients Who Received Preferred Approach to Colorectal Cancer Testing

Colorectal Cancer Screening Preference assessed with 1 item adapted from the CRC Decision Quality Instrument will be compared with the screening approach followed (assessed via chart review and patient report) to determine the percentage of patients who received preferred approach to testing.

Time frame: 1 week after physician visit (preference); 12 months after physician visit (testing)

Population: 450 patients who indicated a clear preference on the post visit survey were analyzed. The population excludes 4 who indicated 'other' and 12 who did not answer the question.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Notification Only Arm/ PatientsPercentage of Patients Who Received Preferred Approach to Colorectal Cancer Testing103 Participants
Training and Notification Arm/ PatientsPercentage of Patients Who Received Preferred Approach to Colorectal Cancer Testing115 Participants
Comparison: We will compare the percentages of patients who received their preferred screening in the 12 months after the visit across the two groups using logistic regression model with the GEE approach to adjust for clustering of patients within clinicians.p-value: 0.47Regression, Logistic
Secondary

Physician's Shared Decision Making Skills

The transcripts from the simulated patient interactions will be scored by two coders using Braddock's Informed Decision Making framework. Total scores range from 0-9 with higher scores indicating more shared decision making elements in the interaction.

Time frame: Baseline

Population: Physicians who completed a recorded simulated patient interaction with a standardized patient.

ArmMeasureValue (MEAN)Dispersion
Notification Only Arm/ PatientsPhysician's Shared Decision Making Skills5.5 Score on a scaleStandard Deviation 1.3
Training and Notification Arm/ PatientsPhysician's Shared Decision Making Skills6.1 Score on a scaleStandard Deviation 1.6
p-value: 0.19t-test, 2 sided
Other Pre-specified

Clinician Attitude Toward Shared Decision Making

The investigators will use five items to assess clinicians' confidence in Shared Decision Making Skills and Barriers to SDM. A total confidence score (0-20) with higher scores indicating higher confidence and a barrier score (0-8) higher scores indicating more barriers will be calculated.

Time frame: Baseline

Population: Comparator physicians' reported confidence of shared decision making and barriers to shared decision making on a baseline survey is compared to Intervention physicians' reported confidence of shared decision making and barriers to shared decision making after completion of the training webinar.

ArmMeasureGroupValue (MEAN)Dispersion
Notification Only Arm/ PatientsClinician Attitude Toward Shared Decision MakingTotal Confidence10.2 Score on a scaleStandard Deviation 2.4
Notification Only Arm/ PatientsClinician Attitude Toward Shared Decision MakingBarrier Confidence0.79 Score on a scaleStandard Deviation 1.4
Training and Notification Arm/ PatientsClinician Attitude Toward Shared Decision MakingTotal Confidence10.7 Score on a scaleStandard Deviation 1.8
Training and Notification Arm/ PatientsClinician Attitude Toward Shared Decision MakingBarrier Confidence0.88 Score on a scaleStandard Deviation 1.57
Other Pre-specified

Companion SDM Process Scale Score

Companions will complete an adapted version of the SDM Process survey to provide a different perspective on the conversation and involvement of the patient. A total score will range from 0-4, with higher scores indicating more shared decision making.

Time frame: About a week after physician visit

Population: Very few patients indicated that they had a companion (spouse, friend, family member) with them at the visit. If a name was provided, companions were contacted and ask to complete a post-visit survey. 11 companions were identified, but only 10 completed the SDM Process questions.

ArmMeasureValue (MEAN)Dispersion
Notification Only Arm/ PatientsCompanion SDM Process Scale Score2.1 Score on a scale of 0-4Standard Deviation 1.3
Training and Notification Arm/ PatientsCompanion SDM Process Scale Score1.9 Score on a scale of 0-4Standard Deviation 1.2

Source: ClinicalTrials.gov · Data processed: Apr 23, 2026