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CompletedNCT05714644CARESUpdated Dec 26, 2025Results posted

Community Collaboration to Advance Racial/Ethnic Equity in CRC Screening

An interventional study of FIT kit Screening Test and Cologuard Screening Test in Colorectal Cancer, sponsored by Massachusetts General Hospital. Completed at 3 sites in United States. Open to participants aged 45 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-26.

Sponsored by Massachusetts General Hospital · Not applicable, Interventional, and Screening

Phase
Not applicable
Study type
Interventional
Enrollment
5,127
Allocation
Randomized
Ages
45 Years to 75 Years
Sex
All
01

Study summary

The goal of this pragmatic randomized clinical trial is to compare two colorectal (CRC) screening outreach approaches (FIT and Cologuard) in community health centers (CHC) in patients overdue for CRC screening. The main questions the project aims to answer are: What screening test has a higher completion rate? What screening test is more feasible and acceptable in a CHC setting? Patients will be sent a CRC screening test in the mail and will be asked to complete it at home and mail it back. Researchers will compare the completion rates for each screening test and will also look at the overall completion rate of both tests.

Read the detailed description

This is a 3-year pragmatic trial with four levels of intervention, including system-, provider-, patient-, and community-level components at each of the CARES clinical sites. Health system components will include the development and implementation of a CRC screening registry and tracking database to systematically and actively track patients overdue for screening, screening test completion, and abnormal screening results. Data systems will be coupled with process re-design to improve clinical workflow for screening outreach. Providers will receive educational support through a training session about the importance of CRC screening, screening test options, population management, and an instructional on how to complete a Cologuard kit (Cologuard arm only) or a FIT kit (FIT arm only). Patient components of the intervention vary by study arm. In sites randomized to Cologuard, patients will receive a mailed Cologuard kit and the Exact Sciences patient support program. Patients in clinics randomized to FIT will receive a mailed FIT kit with systematic reminders. Patients who test positive will be offered patient navigation to assist with completing a diagnostic colonoscopy.

02

Conditions studied

  • Colorectal Cancer
03

In context

Colorectal Neoplasms

5,599 studies on the registry are indexed under Colorectal Neoplasms; 1,458 are open to participants now.

This study's enrollment of 5,127 is above the median of 77 across 4,122 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

Massachusetts General Hospital is the lead sponsor of 2,536 studies on the registry; 446 are open to participants now.

Of its 214 completed or terminated interventional studies of FDA-regulated products, 161 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:

  1. Age 45-75
  2. Has had a visit at a participating community clinic within the last two years.
  3. Alive
  4. Patient's preferred language is English or Spanish

Exclusion Criteria:

Exclusion Criteria:

  1. Has Ulcerative Colitis or Crohn's disease documented in the problem list. (Codes below).
  2. Has colorectal cancer documented in the problem list. (Codes below).
  3. Has had a FIT in the past 1 year
  4. Has had a colonoscopy in the past 10 years

ICD-10 codes for exclusion criteria:

Ulcerative colitis:

  • K51.0
  • K51.2
  • K51.3
  • K51.4
  • K51.5
  • K51.8
  • K51.9
  • K52.8
  • K52.9

Crohn's disease:

  • K50.0
  • K50.1
  • K50.8
  • K50.9

Colorectal cancer

  • C18 (malignant neoplasm of colon)
  • C18.0 (malignant neoplasm of cecum)
  • C18.1 (malignant neoplasm of appendix)
  • C18.2 (malignant neoplasm of ascending colon)
  • C18.3 (malignant neoplasm of hepatic flexure)
  • C18.4 (malignant neoplasm of transverse colon)
  • C18.5 (malignant neoplasm of splenic flexure)
  • C18.6 (malignant neoplasm of descending colon)
  • C18.7 (malignant neoplasm of sigmoid colon)
  • C18.8 (malignant neoplasm of overlapping sites of colon)
  • C18.9 (malignant neoplasm of colon, unspecified)
  • C19 (malignant neoplasm of rectosigmoid junction)
  • C20 (malignant neoplasm of rectum)
  • C21.8 (malignant neoplasm of overlapping sites of rectum, anus and anal canal)
  • C26.0 (malignant neoplasm of intestinal tract, part unspecified)
  • C78.5 (secondary malignant neoplasm of large intestine and rectum)
  • C78.6 (secondary malignant neoplasm of retroperitoneum and peritoneum)
  • D37.4 (neoplasm of uncertain behavior of colon)
  • D37.5 (neoplasm of uncertain behavior of rectum)
05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
5,127 participants (actual)

Study arms

  • Active comparator
    Mailed FIT Kit

    A FIT kit mailed to the patient's home

    Other: FIT kit Screening Test

  • Active comparator
    Cologuard

    A Cologuard test mailed to the patient's home

    Other: Cologuard Screening Test

Interventions

  • OtherFIT kit Screening Test

    FIT kit mailed to the patient's home

  • OtherCologuard Screening Test

    Cologuard test mailed to the patient's home

06

What researchers measure

Primary outcomes

  1. CRC Screening Completion Rates

    completion rate of the stool-based screening test (FIT or Cologuard)

    Time frame: 3 months

Secondary outcomes

  1. CRC Screening Completion Rates

    completion rate of the stool-based screening test (Cologuard or FIT)

    Time frame: 6 months

  2. Diagnostic Colonoscopy Completion Rates

    completion rate of diagnostic colonoscopy after an abnormal stool test result (overall and by arm)

    Time frame: 6 months

07

Results

Posted Dec 26, 2025
Limitations and caveats
Boston and LA used different FIT kit brands. No access to patient-level data about outreach attempts or contacts from the Exact Science patient support program because this information is proprietary. Unable to comment on cost-effectiveness. Unable to randomize the South Dakota site because unable to identify another CHC in the region to participate.

Participant flow

Recruitment Dates: 6/7/23 through 10/24/23

Participant flow — Overall Study
MilestoneMailed FIT KitCologuard
Started24352692
Completed24352692
Not completed00

Outcome measures

PrimaryCRC Screening Completion Rates

completion rate of the stool-based screening test (FIT or Cologuard)

Time frame:
3 months
Reported as:
Count of participants · Participants
CRC Screening Completion Rates
ParticipantsMailed FIT KitCologuard
CRC Screening Completion Rates550751
Statistical analysis
  • Mailed FIT Kit vs Cologuard · Regression, Logistic · p = 0.05 · Risk difference (rd): 4.7 · 95% CI 0.8 to 8.7logistic regression models with generalized estimating equations to account for clustering of data within CHCs, adjusting for age and race/ethnicity
SecondaryCRC Screening Completion Rates

completion rate of the stool-based screening test (Cologuard or FIT)

Time frame:
6 months
Reported as:
Count of participants · Participants
CRC Screening Completion Rates
ParticipantsMailed FIT KitCologuard
CRC Screening Completion Rates649854
Statistical analysis
  • Mailed FIT Kit vs Cologuard · Regression, Logistic · p = <0.05 · Risk difference (rd): 4.5 · 95% CI 0.4 to 8.5
SecondaryDiagnostic Colonoscopy Completion Rates

completion rate of diagnostic colonoscopy after an abnormal stool test result (overall and by arm)

Time frame:
6 months
Reported as:
Count of participants · Participants
Diagnostic Colonoscopy Completion Rates
ParticipantsMailed FIT KitCologuard
Diagnostic Colonoscopy Completion Rates1323

Adverse events

Collected over From enrollment through 180 days for negative test result or an additional 180 days after a positive FIT or Cologuard was returned, up to 1 year.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Mailed FIT Kit0/2,435 (0%)0/2,435 (0%)0/2,435 (0%)
Cologuard0/2,692 (0%)0/2,692 (0%)0/2,692 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Mailed FIT KitCologuardTotal
Mean54.9 ± 8.154.2 ± 8.154.5 ± 8.1
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Mailed FIT KitCologuardTotal
Non-Hispanic, White456307763
Non-Hispanic, Black196173369
Hispanic172220963818
Other/Unknown61116177
Sex: Female, Male
Sex: Female, Male(Participants)Mailed FIT KitCologuardTotal
Female143715813018
Male99811112109
08

Study locations

3 sites
  • UCLA
    Los Angeles, California 90095-1772, United States
  • Mass General Brigham
    Boston, Massachusetts 02114, United States
  • Great Plains Tribal Leaders Health Board
    Rapid City, South Dakota 57703, United States
09

References and documents

Publications

  • May FP, Brodney S, Tuan JJ, Syngal S, Chan AT, Glenn B, Johnson G, Chang Y, Drew DA, Moy B, Rodriguez NJ, Warner ET, Anyane-Yeboa A, Ukaegbu C, Davis AQ, Schoolcraft K, Regan S, Yoguez N, Kuney S, Le Beaux K, Jeffries C, Lee ET, Bhat R, Haas JS. Community Collaboration to Advance Racial/Ethnic Equity in Colorectal Cancer Screening: Protocol for a Multilevel Intervention to Improve Screening and Follow-up in Community Health Centers. Contemp Clin Trials. 2024 Oct;145:107639. doi: 10.1016/j.cct.2024.107639. Epub 2024 Jul 26. PubMed 39068985 ↗
  • May FP, Brodney S, Tuan JJ, Syngal S, Chan AT, Glenn B, Johnson G, Chang Y, Drew DA, Moy B, Rodriguez NJ, Warner ET, Anyane-Yeboa A, Ukaegbu C, Davis AQ, Schoolcraft K, Regan S, Le Beaux K, Lee ET, Bhat R, Gordon A, Phan LK, Chirino AFC, Marotta CJ, Kindermann RGZ, Haas JS. Mailed Outreach for Colorectal Cancer Screening in Community Health Centers: The CARES Pragmatic Cluster Randomized Clinical Trial. JAMA Intern Med. 2026 Jun 1;186(6):703-712. doi: 10.1001/jamainternmed.2026.1170. PubMed 42043827 ↗

Study documents

  • Study protocol · Oct 2, 2025
  • Statistical analysis plan · Aug 20, 2025

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05714644
Lead sponsor
Massachusetts General Hospital
Collaborators
Stand Up To Cancer, University of California, Los Angeles, Great Plains Tribal Leaders Health Board
Responsible party
Jennifer S Haas, MD (Principal Investigator, Massachusetts General Hospital) — Principal investigator
First posted
Feb 6, 2023
Start date
Jun 7, 2023
Primary completion
Jun 30, 2024
Completion
Sep 30, 2025
Results posted
Dec 26, 2025
Last update
Dec 26, 2025

Study contacts

Jennifer Haas, MD
principal investigator · Massachusetts General Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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