Implementing a Randomized Control Trial to Test the Expanded Web-based Decision Aid

September 4, 2026 updated by: Washington University School of Medicine
The overall goal of the randomized control trial (RCT) will be to evaluate the efficacy of modifications to a web-based tool for patient decision-making regarding return of genomic results that will more closely focus on rare cancers. Participants will be given access to a web-based decision aid (or a standard control) that guides participants in making decisions about what type of genomic results they would like to receive from testing performed in the PE-CGS study (NCT06340646).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
197

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Bettina Drake, Ph.D., MPH
  • Phone Number: 314-747-4534
  • Email: drakeb@wustl.edu

Study Contact Backup

  • Name: Erin Linnenbringer, Ph.D., MS
  • Phone Number: 314-747-1966
  • Email: elinnen@wustl.edu

Study Locations

  • United States
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University School of Medicine

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Eligibility Criteria:

  • Enrolled in the WU-PE-CGS study (IRB#202106129); that eligibility entails:

    • Diagnosis of cholangiocarcinoma
    • Diagnosis of multiple myeloma, must be African American
    • Diagnosis of colorectal cancer, must be African American and age 65 or older at time of diagnosis
  • At least 18 years old.
  • Able to understand an IRB-approved informed consent document and agree to participation
  • Have access to a personal computer, tablet or mobile device

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Intervention: Genetics Advisor Online Tool
The Intervention group will receive the expanded Genetics Advisor decision aid.
Other: Genetics Advisor Decision Aid
Participants will be given the option to receive different types of results from genomic sequencing. The participants will be given access to a web-based decision aid that elicits participants' values and preferences for receiving results from cancer genomic sequencing to guide them making a decision about what types of results they would like to receive. Participants will be able to choose to receive: (1) no results, or any combination of (2) biomarker information from cancer cells, (3) inherited mutations related to cancer, and (4) inherited mutations related to other medical issues.
Active Comparator: Control: Standard developed materials
The control group will receive a description of each type of genomic sequencing result they could receive using the standard informed consent process for the return-of-results protocol.
Other: Standard developed materials
Participants will be given the option to receive different types of results from genomic sequencing. The choices available to them will be explained by research staff following a script that describes what each type of result means. Participants will be able to choose to receive: (1) no results, or any combination of (2) biomarker information from cancer cells, (3) inherited mutations related to cancer, and (4) inherited mutations related to other medical issues. These choices will be presented to them via a discussion with study staff with accompanying paper information

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in self-efficacy about genomic test results
Time Frame: Baseline, after viewing assigned materials (day 1), and 3-months after enrollment
7-item, Likert scale. This scale has 5 points ranging from strongly disagree to strongly agree. 1= Strongly disagree, 2= Disagree, 3= Neither Agree nor Disagree, 4= Agree, 5= Strongly Agree. All items are scored such that 'strongly agree' reflects a correct response and 'agree' reflects a less confident correct response in the correct direction. This will be scored by adding up the numbers for each of the 7 items regarding self-efficacy. The total score ranges from 7 to 35. A higher score for the participant represents higher participant self-efficacy.
Baseline, after viewing assigned materials (day 1), and 3-months after enrollment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in decisional conflict
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
17-item, Likert scale. This scale has 5 points ranging from strongly agree to strongly disagree. 1=Strongly Agree, 2=Agree, 3=Neither Agree nor Disagree, 4=Disagree, 5=Strongly Disagree. All items are scored such that 'strongly disagree' reflects an incorrect response and 'disagree' reflects a less confident incorrect response in the incorrect direction. This will be scored by adding up the numbers for each of the 17 items regarding decisional conflict. The total score ranges from 17 to 85. The higher score for the participant represents higher participant decisional conflict.
After viewing assigned materials (day 1) and 3-months after enrollment
Change in knowledge of clinical genetic testing
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
12-item, Likert scale. This scale has 5 points ranging from strongly agree to strongly disagree. 1=Strongly Agree, 2=Agree, 3=Neither Agree nor Disagree, 4=Disagree, 5=Strongly Disagree for items (4, 6-12) are scored such that 'strong disagree' reflects a correct response and 'somewhat disagree' reflects a less confident correct response in the correct direction. Negatively worded items (items 1, 2, 3, 5) are reverse scored so that "strongly agree' reflected a correct response and 'somewhat agree' reflected a less confident response in the correct direction. This will be scored by adding up the numbers for each of the 11 items regarding participant knowledge of clinical genetic testing. The total score ranges from 12 to 60. A higher score for the participant represents higher participant knowledge.
After viewing assigned materials (day 1) and 3-months after enrollment
Change in expectations for potential benefits of cancer genomic sequencing
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
Participants will rate their expectation for 6 potential benefits of cancer genomic sequencing on a 4-point scale ranging from extremely unlikely to extremely likely. . 1= Extremely unlikely, 2= Unlikely, 3= Likely, 4= Extremely likely. This will be scored by adding up the numbers for each of the 6 items regarding participant expectations of benefit. The total score ranges from 6 to 24. A higher score for the participant represents higher levels of expectations.
After viewing assigned materials (day 1) and 3-months after enrollment
Decisional conflict scores categorized by demographic factors
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment

17-item, Likert scale. This scale has 5 points ranging from strongly agree to strongly disagree. 1=Strongly Agree, 2=Agree, 3=Neither Agree nor Disagree, 4=Disagree, 5=Strongly Disagree. All items are scored such that 'strongly disagree' reflects an incorrect response and 'disagree' reflects a less confident incorrect response in the incorrect direction. This will be scored by adding up the numbers for each of the 17 items regarding decisional conflict. The total score ranges from 17 to 85. The higher score for the participant represents higher participant decisional conflict.

Demographic factors include age, race, SES, and geographic residence.
After viewing assigned materials (day 1) and 3-months after enrollment
Knowledge scores categorized by demographic factors
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment

12-item, Likert scale. This scale has 5 points ranging from strongly agree to strongly disagree. 1=Strongly Agree, 2=Agree, 3=Neither Agree nor Disagree, 4=Disagree, 5=Strongly Disagree for items (4, 6-12) are scored such that 'strong disagree' reflects a correct response and 'somewhat disagree' reflects a less confident correct response in the correct direction. Negatively worded items (items 1, 2, 3, 5) are reverse scored so that "strongly agree' reflected a correct response and 'somewhat agree' reflected a less confident response in the correct direction. This will be scored by adding up the numbers for each of the 11 items regarding participant knowledge of clinical genetic testing. The total score ranges from 12 to 60. A higher score for the participant represents higher participant knowledge.

Demographic factors include age, race, SES, and geographic residence.
After viewing assigned materials (day 1) and 3-months after enrollment
Decisional conflict scores categorized by genomic literacy
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
Genomic literacy will be measured at baseline. 14 items. For 7 items participants will rate their familiarity with genetic terminology on a 7 point scale ranging from strongly disagree to strongly agree. 1= Strongly disagree, 7= Strongly agree. This portion ill be scored by adding up the numbers for each of these 7 items. The total score on this portion ranges from 7 to 49. An additional 7 questions ask participants to fill in a missing word in a statement about genetics. These 7 items are multiple-choice questions and are scored by adding up the number of correct answers. The score on this portion ranges from 0 to 7.
After viewing assigned materials (day 1) and 3-months after enrollment
Knowledge scores categorized by genomic literacy
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
Genomic literacy will be measured at baseline. 14 items. For 7 items participants will rate their familiarity with genetic terminology on a 7 point scale ranging from strongly disagree to strongly agree. 1= Strongly disagree, 7= Strongly agree. This portion ill be scored by adding up the numbers for each of these 7 items. The total score on this portion ranges from 7 to 49. An additional 7 questions ask participants to fill in a missing word in a statement about genetics. These 7 items are multiple-choice questions and are scored by adding up the number of correct answers. The score on this portion ranges from 0 to 7.
After viewing assigned materials (day 1) and 3-months after enrollment
Decisional conflict scores categorized by genomic sequencing testing attitudes
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
Genomic sequencing testing attitudes is measured at baseline. 6-items. This scale has 4 points ranging from 'strongly disagree' to 'strongly agree'. 1= Strongly disagree, 4=Strongly agree. This is scored by adding up the numbers for each of the 6 items. The score ranges from 6 to 24. A higher score indicates a higher participant level of trust in genomic research participation.
After viewing assigned materials (day 1) and 3-months after enrollment
Knowledge scores categorized by genomic sequencing testing attitudes
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment
Genomic sequencing testing attitudes is measured at baseline. 6-items. This scale has 4 points ranging from 'strongly disagree' to 'strongly agree'. 1= Strongly disagree, 4=Strongly agree. This is scored by adding up the numbers for each of the 6 items. The score ranges from 6 to 24. A higher score indicates a higher participant level of trust in genomic research participation.
After viewing assigned materials (day 1) and 3-months after enrollment
Decisional conflict scores categorized by clinical characteristics
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment

7-item, Likert scale. This scale has 5 points ranging from strongly disagree to strongly agree. 1= Strongly disagree, 2= Disagree, 3= Neither Agree nor Disagree, 4= Agree, 5= Strongly Agree. All items are scored such that 'strongly agree' reflects a correct response and 'agree' reflects a less confident correct response in the correct direction. This will be scored by adding up the numbers for each of the 7 items regarding self-efficacy. The total score ranges from 7 to 35. A higher score for the participant represents higher participant self-efficacy.

Clinical characteristics include cancer type, stage at diagnosis, and primary treatment.
After viewing assigned materials (day 1) and 3-months after enrollment
Knowledge scores categorized by clinical characteristics
Time Frame: After viewing assigned materials (day 1) and 3-months after enrollment

12-item, Likert scale. This scale has 5 points ranging from strongly agree to strongly disagree. 1=Strongly Agree, 2=Agree, 3=Neither Agree nor Disagree, 4=Disagree, 5=Strongly Disagree for items (4, 6-12) are scored such that 'strong disagree' reflects a correct response and 'somewhat disagree' reflects a less confident correct response in the correct direction. Negatively worded items (items 1, 2, 3, 5) are reverse scored so that "strongly agree' reflected a correct response and 'somewhat agree' reflected a less confident response in the correct direction. This will be scored by adding up the numbers for each of the 11 items regarding participant knowledge of clinical genetic testing. The total score ranges from 12 to 60. A higher score for the participant represents higher participant knowledge.

Clinical characteristics include cancer type, stage at diagnosis, and primary treatment.
After viewing assigned materials (day 1) and 3-months after enrollment

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Washington University School of Medicine

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Erin Linnenbringer, Ph.D., MS, Washington University School of Medicine

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.

Helpful Links

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 3, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 20, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 3, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 4, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 9, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 4, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 202409214
  • U2CCA252981 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Will share all data, software and know-how generated during the course of this work, without limitations except as prevented by prior agreement. This will include both the final datasets, as well as the data necessary to complete the aims. Will disseminate results from this research through presentations at public lectures, scientific institutions and meetings, and/or publication in major journals. All final peer-reviewed manuscripts that arise from this proposal will be submitted to the digital archive PubMed Central. Wherever applicable, data will be deposited to appropriate public repositories.

All participants whose genomic data are collected will be consented for broad data sharing, and their genomic data will be included in the study deposits. Data documentation and de-identified data will be deposited for sharing along with phenotypic data, which includes demographics and diagnosis, consistent with applicable laws and regulations.

IPD Sharing Time Frame

The investigators agree to deposit data into database of Genotypes and Phenotypes (dbGaP) repository after data cleaning and quality control as soon as possible but no later than within three months, or upon acceptance of the data for publication, or public disclosure of a submitted patent application, whichever is earlier. When data are released from dbGaP, the data will be made available to the Genomic Data Commons (GDC).

IPD Sharing Access Criteria

The investigators agree that they will identify where the data will be available (dbGaP and GDC) and how to access the data in any publications and presentations that they author or co-author about these data, as well as acknowledge the repository and funding source in any publications and presentations. As they will be using the database of Genotypes and Phenotypes (dbGaP), which is an NIH-funded repository, this repository has policies and procedures in place that will provide data access to qualified researchers, fully consistent with NIH data sharing policies and applicable laws and regulations.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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