Clinical trial Recruiting at 1 site Observational Ages 18 and up

Noninvasive molecular test for colorectal polyps before colonoscopy

Official title: Metatranscriptomic Markers As A Predictor of Colonic Neoplasia at the Time of Colonoscopy

Run by Viome · NCT07786818 · Data updated 2026-11-12

This study tests whether saliva and stool markers can predict the presence of colorectal polyps in adults undergoing colonoscopy.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment1000 (estimated)
SponsorViome
Industry-sponsored
Locations1 site (Bothell, Washington)
StatusRecruiting
StartedDecember 20, 2025
Main results expectedJanuary 30, 2027
Study endsJanuary 30, 2027
Registry record updatedAugust 26, 2026
Trial IDNCT07786818 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years or older undergoing colonoscopy who can provide stool and saliva samples and have no personal history of colorectal cancer or stoma.

Probably not a fit

Participants with colorectal polyps may not benefit directly if the test does not achieve sufficient accuracy in predicting polyps.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study collects saliva and stool samples from about 1,000 adults scheduled for colonoscopy to identify molecular features associated with colonoscopy-detected polyps. Researchers will build a predictive model using the initial data and test it on an independent validation dataset to see how well it identifies individuals with polyps. The work is a collaboration between Viome Life Sciences and Scripps Research Institute, with no interventions applied to participants beyond standard care and sample collection. Eligibility includes adults 18+ undergoing colonoscopy with bowel prep who can provide stool and saliva; those with a stoma or a personal history of colorectal cancer are excluded.

Why it matters

Potential benefit: If successful, the test could offer a noninvasive way to flag people at higher risk for colorectal polyps.

How similar studies have gone: Prior research in multi-omics and metatranscriptomic approaches has shown promise for noninvasive detection of colorectal neoplasia, but independent validation is needed for this specific marker approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female, aged 18 years or older
* Undergoing colonoscopy with bowel preparation
* Able to provide stool and saliva samples prior to colonoscopy
* No stoma present
* No known personal history of colorectal cancer

Exclusion Criteria:

* Individuals under 18 years of age
* Patients with a stoma
* Personal history of colorectal cancer

Where it's running

  • Viome Life Sciences
    Bothell, Washington, United States
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.