Recruitment

Recruitment Status
Recruiting
Estimated Enrollment
Same as current

Summary

Conditions
Colorectal Cancer
Type
Interventional
Phase
Not Applicable
Design
Allocation: RandomizedIntervention Model: Parallel AssignmentIntervention Model Description: 3-arm cluster-randomized controlled trialMasking: Single (Participant)Primary Purpose: Screening

Participation Requirements

Age
Between 45 years and 75 years
Gender
Both males and females

Description

The study will employ a cluster-randomized design, in which twelve communities within 1-2 Tribal health regions will be randomized to one of the two study intervention conditions (6 communities per intervention), matched by community size. All Alaska Native adults aged 45-75 due for colorectal cance...

The study will employ a cluster-randomized design, in which twelve communities within 1-2 Tribal health regions will be randomized to one of the two study intervention conditions (6 communities per intervention), matched by community size. All Alaska Native adults aged 45-75 due for colorectal cancer (CRC) screening within each community will be offered the same intervention. A total of 770 participants will be recruited in at least six communities per study arm. High Intensity Intervention: Participants will receive navigated tribal health worker outreach, a mailed MT-sDNA kit, mailed culturally appropriate educational material describing CRC screening options available and follow-up reminders Medium Intensity Intervention: Participants will receive mailed culturally appropriate educational material describing CRC screening options available, including MT-sDNA, and navigated follow-up outreach reminders Usual Care (Control arm): All other communities in the participating Tribal health region will serve as the reference group receiving usual care (i.e., screening recommendation at a clinic visit) Participants receiving the high intensity intervention are expected to have a 20% increase in screening uptake while those receiving medium intensity intervention will have a 10% increase in screening uptake over those receiving usual care. The study will also measure MT-sDNA sample quality and neoplastic yield in these remote Alaska Native communities. The investigators anticipate that the proportion of MT-sDNA tests meeting quality control standards will be the same as in the general US population (96%) and that pre-cancerous polyp detection rates at diagnostic post-MT-sDNA colonoscopy will exceed routine clinical practice rates in the general US population (52%-67%). During and following the graded intensity intervention, the investigators will survey samples of patients to evaluate their awareness and response to the CRC screening intervention. The investigators will assess their perceived severity, perceived susceptibility, perceived benefits, perceived barriers, and self-efficacy relevant to CRC screening as well as measure the time-to-respond and screening method used. The study will use focus groups and key informant interviews to learn about factors associated with screening response. For the focus groups, AN people ages 45-75 who are unscreened or non-adherent to screening guidelines (colonoscopy within 10 years, sigmoidoscopy within five years, or fecal occult blood testing within preceding 12 months) will be invited to provide their views on barriers to and facilitators of screening, including barriers described in the literature and identified in the investigators previous work. Non-adherence will be identified through tribal medical records. Each focus group will last up to two hours, and will include 6-8 participants. All focus groups will be stratified by gender, and focus groups will be balanced so that approximately equal numbers of men and women are included in the analysis. The investigators will also conduct a brief survey and key informant interviews (6-8 clinician interviews at each location) among community health aides, providers, and tribal health system administrators using validated measures of intervention feasibility, acceptability, and appropriateness to characterize provider- and system-level barriers and promotors to MT-sDNA implementation.

Tracking Information

NCT #
NCT04336397
Collaborators
Mayo Clinic
Investigators
Principal Investigator: Diana Redwood, PhD Alaska Native Tribal Health Consortium