Patient Reminders Optimizing Mail-in Prevention Testing for Colorectal Cancer (PROMPT-CRC)

June 5, 2026 updated by: Laura Feemster

Screening is an important tool for early colorectal cancer detection, and the most recent evidence suggests that early detection significantly improves survival rates. Current medical guidelines recommend that all people aged 45 to 75 be screened regularly. However, actual rates of screening in the United States are much lower than this.

Colonoscopy is the gold standard in colon cancer screening, serving as both screening and prevention. However there are many barriers to colonoscopy uptake, including lack of awareness, patient reticence, scheduling complexity, and market variation in access. Stool testing is a valuable alternative to colonoscopy for low-risk patients. Exact Sciences is the company that makes Cologuard, which is the current best-in-class stool testing for colon cancer screening.

Despite being a convenient at-home screening option, patient engagement with screening via stool testing has room for improvement. Over 40% of Ascension patients who have a stool testing order placed for them never return the screening kit in the mail.

A large body of research demonstrates that interventions informed by behavioral science can support patients in engaging in a variety of preventative health behaviors. Personalized nudges have proven to be among the most effective types of interventions, along with interventions aimed at helping patients overcome barriers to screening. We aim to test whether behavioral nudges can increase stool testing kit return rates.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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.

Detailed Description

Screening is an important tool for early colorectal cancer detection, and the most recent evidence suggests that early detection significantly improves survival rates. Current medical guidelines recommend that all people aged 45 to 75 be screened regularly. However, actual rates of screening in the United States are much lower than this, particularly among younger patient cohorts. Screening rates are still lower for patients who are "socially vulnerable" - a measure of the degree to which social and demographic factors make them vulnerable to health disparities.

Colonoscopy is the gold standard in colon cancer screening, serving as both screening and prevention. However there are many barriers to colonoscopy uptake, including lack of awareness, patient reticence, scheduling complexity, and market variation in access. Stool testing is a valuable alternative to colonoscopy for low-risk patients. Exact Sciences is the company that makes Cologuard, which is the current best-in-class stool testing for colon cancer screening.

Despite being a convenient at-home screening option, patient engagement with screening via stool testing has room for improvement. Over 40% of Ascension patients who have a stool testing order placed for them never return the screening kit in the mail.

A large body of research demonstrates that interventions informed by behavioral science can support patients in engaging in a variety of preventative health behaviors. Personalized nudges have proven to be among the most effective types of interventions, along with interventions aimed at helping patients overcome barriers to screening.4 We aim to test whether behavioral nudges can increase stool testing kit return rates.

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.
2106

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.

Study Locations

  • United States
    • Missouri
      • St Louis, Missouri, United States, 63134
        • Ascension Health

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

Inclusion Criteria:

  • Age 45-75
  • Have either a mobile phone number or an email address on file with the health system
  • Included in and non-compliant on the Ascension Colon Cancer Screening Clinical Priority Goal measure.
  • Have consented to receive electronic communications from the health system
  • Ascension primary care provider placed an order for stool testing between 60 and 180 days prior to the intervention.
  • No record of Cologuard stool testing lab results returned within 60 days of the order being placed.

Exclusion Criteria:

  • Patients whose primary care providers are exempted from the campaign by the health system
  • Patients with a record of having been screened for colorectal cancer through some other method during the time since the initial order for Cologuard stool testing was placed.
  • Have received a nudge campaign from the Clinical Transformation team in the past 90 days
  • Patients who have previously opted out of receiving electronic communications from the health system in our message delivery platform (Salesforce)

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: Screening
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

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: Experimental Group
Group receiving the messages
Behavioral: Three Messaging Nudges
Patients in the Experimental Condition will receive a set of up to three email and text messages over the course of five days, while also receiving usual care which could include messaging from their practice or the electronic health record.
No Intervention: Control Group
Group not receiving the messages

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
Percentage kit return at 4 weeks
Time Frame: 4 weeks from date first message was sent
Percentage of patients who have Cologuard stool testing lab results returned 4 weeks after receiving the intervention
4 weeks from date first message was sent

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
Percentage kit return at 8 weeks
Time Frame: 8 weeks from date first message was sent
Percentage of patients who have Cologuard stool testing lab results returned 8 weeks after receiving the intervention
8 weeks from date first message was sent
Percentage kit return at 12 weeks
Time Frame: 12 weeks from date first message was sent
Percentage of patients who have Cologuard stool testing lab results returned 12 weeks after receiving the intervention
12 weeks from date first message was sent

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.
Laura Feemster

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: Laura Feemster, MD MS, Ascension Health

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.
December 5, 2024

Primary Completion (Actual)

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.
January 2, 2025

Study Completion (Actual)

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.
February 26, 2025

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).
November 26, 2024

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.
November 26, 2024

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.
November 29, 2024

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.
June 8, 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.
June 5, 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.
June 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.
  • RAS20240016

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Has patient information that we are not approved to share

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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