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Not yet recruitingNCT07206589Updated Jun 24, 2026

Minimally Invasive Approaches for the Diagnosis of Barrett's Esophagus and Esophageal Cancer, SOS5C Trial

An interventional study of Cancer Screening and Computer-Assisted Intervention in Barrett Esophagus and Esophageal Adenocarcinoma, sponsored by Mayo Clinic. Not yet recruiting at 3 sites in United States. Open to participants aged 18 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-06-24.

Sponsored by Mayo Clinic · Not applicable, Interventional, and Screening

Phase
Not applicable
Study type
Interventional
Enrollment
1,010
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
All
01

Study summary

This clinical trial studies how well minimally invasive approaches (an artificial intelligence [AI] powered risk tool, nurse navigation, and a sponge on a string [SOS] test) work in diagnosing patients with Barrett's esophagus (BE) and esophageal cancer. Esophageal cancer has a poor 5-year survival rate when diagnosed after onset of symptoms. While rising, incidence of esophageal cancer remains too low to screen the entire population. BE is a condition in which the cells lining the lower part of the esophagus have changed or been replaced with abnormal cells that could lead to esophageal cancer. Currently, patients are screened for BE based on certain risk factors (reflux, age > 50 years, White race, family history of esophageal cancer, obesity, male sex, and smoking), followed by endoscopies and surgery for treatment. These standard procedures may result in under-recognition of BE risk due to inaccurate and difficult to use risk assessment tools, high cost, invasiveness, low access to endoscopy, and sub-optimal recognition of abnormal cells during routing endoscopy. An AI powered risk tool that integrates symptoms, health history, and laboratory values from electronic health record data may more accurately assess BE and esophageal cancer risk that manual assessment. The BE-SOS screening test combines a swallowable cell collection device with assessment of DNA, which may more accurately diagnose abnormal cells. Nurse navigation involves trained personnel assisting individuals through the screening process and completing the follow-up diagnostic test if the screening test is positive. Navigators address cultural, social, access, and logistical barriers to screening. Nurse navigation may increase completion rates of diagnostic procedures following a positive screening test. These minimally invasive approaches may enable higher rates of BE screening than currently being accomplished.

02

Conditions studied

  • Barrett Esophagus
  • Esophageal Adenocarcinoma
03

In context

Barrett Esophagus

310 studies on the registry are indexed under Barrett Esophagus; 64 are open to participants now.

This study's planned enrollment of 1,010 is above the median of 62 across 186 interventional studies indexed under Barrett Esophagus.

Browse Barrett Esophagus studies →

Lead sponsor

Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 670 are open to participants now.

Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • SPECIFIC AIM 1A: Adult patients 18-85 years old
  • SPECIFIC AIM 1A INTERVENTION CLUSTERS: BE Risk Tool Score > 0.087, indicating a higher risk for BE/esophageal adenocarcinoma (EAC). This will be run as a web-based application integrating data from several domains in the electronic health record (EPIC). Output score will range from 0-1.
  • SPECIFIC AIM 1A CONTROL CLUSTERS: Meeting American College of Gastroenterology (ACG) screening criteria (gastroesophageal reflux disease [GERD]+ > 2 BE risk factors: Age ≥ 50 years, Male sex, Caucasian race, obesity [body mass index (BMI) > 30], ever smoker, family history of BE/EAC)
  • SPECIFIC AIM 1B: A "low risk" BE risk tool score (\< 0.0897)

Exclusion criteria

Exclusion Criteria:

  • SPECIFIC AIM 1A: History of Barrett's esophagus or esophageal adenocarcinoma
  • SPECIFIC AIM 1A: Prior endoscopy in the last 10 years
  • SPECIFIC AIM 1A: Patients who are unable to consent
  • SPECIFIC AIM 1A: Patients with a current history of uninvestigated dysphagia
  • SPECIFIC AIM 1A: History of eosinophilic esophagitis, achalasia
  • SPECIFIC AIM 1A: Patients on oral anticoagulation including Coumadin, Warfarin unless discontinued for five days prior to the sponge procedure
  • SPECIFIC AIM 1A: Patients on antiplatelet agents including Clopidogrel, unless discontinued for five days prior to the sponge procedure
  • SPECIFIC AIM 1A: Patients on oral thrombin inhibitors including Dabigatran and oral factor Xa inhibitors such as rivaroxaban, apixaban, and edoxaban, unless discontinued for five days prior to the sponge procedure
  • SPECIFIC AIM 1A: Patients with a history of known varices or cirrhosis
  • SPECIFIC AIM 1A: Patients with a history of esophageal or gastric resection for esophageal or gastric carcinoma
  • SPECIFIC AIM 1A: Patients with congenital or acquired bleeding diatheses
  • SPECIFIC AIM 1A: Patients with a history of esophageal squamous dysplasia or esophageal squamous carcinoma
  • SPECIFIC AIM 1A: Patients with limited life expectancy (\< 2 years): per provider judgement
  • SPECIFIC AIM 1B: History of Barrett's esophagus or esophageal adenocarcinoma
  • SPECIFIC AIM 1B: Prior endoscopy in the last 10 years
  • SPECIFIC AIM 1B: Patients who are unable to consent
  • SPECIFIC AIM 1B: Patients with a current history of uninvestigated dysphagia
  • SPECIFIC AIM 1B: History of eosinophilic esophagitis, achalasia
  • SPECIFIC AIM 1B: Patients on oral anticoagulation including Coumadin, Warfarin unless discontinued for five days prior to procedure
  • SPECIFIC AIM 1B: Patients on antiplatelet agents including Clopidogrel, unless discontinued for five days prior to procedure
  • SPECIFIC AIM 1B: Patients on oral thrombin inhibitors including Dabigatran and oral factor Xa inhibitors such as rivaroxaban, apixaban, and edoxaban, unless discontinued for five days prior to procedure
  • SPECIFIC AIM 1B: Patients with a history of known varices or cirrhosis
  • SPECIFIC AIM 1B: Patients with a history of esophageal or gastric resection for esophageal or gastric carcinoma
  • SPECIFIC AIM 1B: Patients with congenital or acquired bleeding diatheses
  • SPECIFIC AIM 1B: Patients with a history of esophageal squamous dysplasia or esophageal squamous carcinoma
  • SPECIFIC AIM 1B: Patients with limited life expectancy (\< 2 years): per provider judgement
05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,010 participants (estimated)

Study arms

  • Experimental
    Arm 1 (T1 SOC, T2-T4 Intervention)

    Family Medicine Care Teams in Cluster A provide SOC procedures during T1 consisting of the following: 1) Care teams manually assess BE risk for patients, and patients meeting ACG criteria are recommended to undergo BE screening with BE-SOS test followed by endoscopy (only if BE-SOS positive). Family Medicine Care Teams in Cluster A then provide intervention procedures during T2, T3, and T4 consisting of the following: 1) Care teams utilize RN navigators that assist in using the AI powered BE Risk Tool to assess patients' BE risk; 2) Patients with AI powered BE Risk Tool high risk result undergo BE-SOS test with RN navigator assistance; 3) Patients with positive BE-SOS test results then undergo endoscopy with RN navigator facilitation.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

  • Experimental
    Arm 2 (T1 SOC, T2-T4 Intervention)

    Family Medicine Care Teams in Cluster B provide SOC procedures as in Arm 1 during T1, followed by intervention procedures as in Arm 1 during T2, T3, and T4.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

  • Experimental
    Arm 3 (T1-T2 SOC, T3-T4 Intervention)

    Family Medicine Care Teams in Cluster C provide SOC procedures as in Arm 1 during T1 and T2, followed by intervention procedures as in Arm 1 during T3 and T4.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

  • Experimental
    Arm 4 (T1-T2 SOC, T3-T4 Intervention)

    Family Medicine Care Teams in Cluster D provide SOC procedures as in Arm 1 during T1 and T2, followed by intervention procedures as in Arm 1 during T3 and T4.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

  • Experimental
    Arm 5 (T1-T3 SOC, T4 Intervention)

    Family Medicine Care Teams in Cluster E provide SOC procedures as in Arm 1 during T1, T2, and T3, followed by intervention procedures as in Arm 1 during T4.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

  • Experimental
    Arm 6 (T1-T3 SOC, T4 Intervention)

    Family Medicine Care Teams in Cluster F provide SOC procedures as in Arm 1 during T1, T2, and T3, followed by intervention procedures as in Arm 1 during T4.

    Other: Cancer Screening · Other: Computer-Assisted Intervention · Procedure: Endoscopic Procedure · Behavioral: Health Risk Assessment · Other: Navigation · Other: Questionnaire Administration

Interventions

  • OtherCancer Screening

    Undergo BE-SOS test

    Also known as: Cancer Screening for Patients, Early Cancer Detection, Screening, Screening of Cancer

  • OtherComputer-Assisted Intervention

    Undergo BE risk assessment using AI powered BE Risk Tool

  • ProcedureEndoscopic Procedure

    Undergo endoscopy

    Also known as: Endoscopic Examination, Endoscopy, ES

  • BehavioralHealth Risk Assessment

    Undergo manual BE risk assessment

    Also known as: Risk Assessment

  • OtherNavigation

    Receive RN navigation

  • OtherQuestionnaire Administration

    Ancillary studies

06

What researchers measure

Primary outcomes

  1. Rate of completed Barrett's esophagus (BE) screening

    Assessed as the proportion of patients who complete BE screening. This is determined as the number of patients who complete a sponge on a string (SOS) BE screening test or endoscopy screen, divided by the number of screen eligible patients in each group.

    Time frame: Baseline (completion of endoscopy)

  2. Negative predictive value of the AI powered BE Risk Tool (Aim 1b)

    A randomly selected sample of patients (N=50) with a negative BE risk tool score will undergo a research upper endoscopy to confirm the high estimated negative predicted value of the BE risk tool.

    Time frame: Baseline (completion of endoscopy)

Secondary outcomes

  1. BE screening ordered (completed + not completed)

    Assessed as the proportion of patients who complete BE screening (SOS BE screen test or endoscopy) for patients where BE screening has been ordered.

    Time frame: Baseline (completion of endoscopy)

  2. Successful completion of the SOS BE screen test

    Assessed as the number that had successful test completion (a test result was received) divided by the number of patients where a BE-SOS test/endoscopy order was placed

    Time frame: Baseline (completion of endoscopy)

  3. Completion of diagnostic endoscopy following a positive SOS BE screen test

    Assessed as the proportion of patients who complete diagnostic endoscopy following a positive BE-SOS test.

    Time frame: Baseline (completion of endoscopy)

  4. Rates of BE [with or without dysplasia/esophageal adenocarcinoma (EAC)]

    The proportion of patients with BE/EAC diagnoses will be determined as the number with a BE/EAC diagnosis divided by the number of patients who underwent BE-SOS or endoscopy.

    Time frame: Baseline (completion of endoscopy)

  5. Patients flagged for screening by the BE risk tool in the intervention clusters who also meet American College of Gastroenterology (ACG) BE screening guidelines

    The proportion of screen eligible patients in the intervention arm who meet ACG screening criteria will be determined as the number meeting screening criteria divided by the number in the group.

    Time frame: Baseline (completion of endoscopy)

07

Study locations

3 sites
  • Mayo Clinic in Arizona
    Scottsdale, Arizona 85259, United States
  • Mayo Clinic in Rochester
    Rochester, Minnesota 55905, United States
  • Mayo Clinic Health System-Eau Claire Clinic
    Eau Claire, Wisconsin 54701, United States
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07206589
Lead sponsor
Mayo Clinic
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
Oct 3, 2025
Start date
Dec 1, 2026 (estimated)
Primary completion
Jul 31, 2030 (estimated)
Completion
Jul 31, 2030 (estimated)
Last update
Jun 24, 2026

Study contacts

Clinical Trials Referral Office
Contact
mayocliniccancerstudies@mayo.edu
855-776-0015
Ramona Lansing
Contact
lansing.ramona@mayo.edu
Prasad G Iyer, MD, MS
principal investigator · Mayo Clinic

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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