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Financial Incentives to Increase Colorectal Cancer Screening in Priority Populations

Systems of Support (SOS) to Increase Colon Cancer Screening Disparities Supplement

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03080701
Enrollment
898
Registered
2017-03-15
Start date
2017-03-23
Completion date
2018-11-02
Last updated
2019-11-05

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

Conditions

Colorectal Cancer

Keywords

Behavioral: Automated Mailing

Brief summary

The investigators propose to build on the success of the Systems of Support to Increase Colorectal Cancer trial (SOS, R01CA121125, Green) and focus on disparity groups who are less likely to be current for colorectal cancer (CRC) screening. We will test whether financial incentives increases screening uptake and decreases screening disparities. The investigators hypothesize that CRC screening rates will be higher in patients offered mailed fecal kits and financial incentives than those offered mailed fecal kits alone.

Detailed description

Study staff will send invitation letters and a questionnaire to 5,000 patients aged 50-75 not current for CRC screening, two-thirds who are identified in the electronic data as being from a non-White race, ethnicity, or who have Medicaid coverage. Those returning the survey and remaining eligible (estimated N = 1150) will be randomized to either (1) Mailed fecal kit only, or mailed fecal kit plus one of 2 types of financial incentives for completing testing: (2) a guaranteed Monetary incentive or (3) a probabilistic Lottery incentive.

Interventions

BEHAVIORALAuto Mailing Plus Money

Participant receives money as a thank you for completing CRC screening within 6 months.

BEHAVIORALAuto Mailing Plus Lottery

Participant has a 1 in 10 chance of winning money in a lottery for completing CRC screening within 6 months.

Sponsors

University of Michigan
CollaboratorOTHER
University of Texas
CollaboratorOTHER
Kaiser Permanente
Lead SponsorOTHER

Study design

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

Masking description

The randomization sequence will be concealed to everyone except the study biostatistician.

Eligibility

Sex/Gender
ALL
Age
50 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* No evidence in electronic data of FIT screening in past year or a colonoscopy in the prior 9 years. * Continuously enrolled in Group Health Cooperative (GHC) for at least one year. * Patients who have Medicaid coverage or are non-white race or Hispanic any race.

Exclusion criteria

* Known high risk for CRC * History of CRC * History of inflammatory bowel disease * Current anticoagulation therapy * Organ failure * Serious illness * Debilitating disease * Dementia * Nursing home resident

Design outcomes

Primary

MeasureTime frameDescription
CRC Screening Within 6 Months Following Randomization6 monthsWe will compare among the 3 arms (1) automated mailing; (2) Auto mailing plus $10; (3) Auto mailing plus $50 lottery for completion and the effect of each on CRC screening completion at 6 months (yes/no) within the following subgroups of each arm: 1. White and not Hispanic versus non-White or Hispanic. 2. Medicaid versus non-Medicaid (Medicare, employer-based, private) insurance. 3. History of prior versus no prior completion of CRC screening tests. 4. High school or less versus college or more education level.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026