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Blood and Stool Sample Collection in Subjects With a Diagnosis of Colorectal Cancer or Colorectal Lesion: Act Fast

Blood and Stool Sample Collection in Subjects With a Diagnosis of Colorectal Cancer or Colorectal Lesion: Act Fast

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03789162
Enrollment
850
Registered
2018-12-28
Start date
2018-12-20
Completion date
2025-05-29
Last updated
2025-06-29

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

Conditions

Colorectal Cancer

Keywords

Blood Draw, Sample Collection, Stool DNA

Brief summary

The primary objective of this study is to collect de-identified, clinically-characterized stool and whole blood specimens for use in developing and evaluating the performance of new biomarker assays for the detection of colorectal cancer (CRC).

Detailed description

Participants will be 40 years of age or older, with a diagnosis of CRC, at any stage, confirmed with a tissue biopsy or a colorectal lesion at least 1 cm in size suspicious for adenoma (including sessile serrated adenoma) or CRC on a pre-enrollment colonoscopy, sigmoidoscopy, or computed tomography (CT) colonography. Approximately 1500 participants will be enrolled.

Interventions

None listed

Sponsors

Exact Sciences Corporation
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Participant is 40 years of age or older. 2. Participant has a diagnosis of CRC, at any stage, confirmed with a tissue biopsy or a colorectal lesion at least 1 cm in size suspicious for adenoma (including sessile serrated adenoma) or CRC on a pre-enrollment colonoscopy, sigmoidoscopy, or CT colonography. 3. Postcolonoscopy, the residual lesion in the colon must be at least 1 cm in size as to require additional surgical excision or complex colonoscopic polypectomy. 4. Participant understands the study procedures and is able to provide informed consent to take part in the study and authorization for release of relevant protected health information to the study Investigator.

Exclusion criteria

1. Any previous cancer diagnosis (with the exceptions of basal cell or squamous cell skin cancers) and/or cancer related treatment (e.g., chemotherapy, immunotherapy, radiation, and/or surgery) within the past 5 years. 2. Less than 7 days between colonoscopy and blood and/or stool specimen collection. 3. IV contrast (e.g., CT or MRI) within 1 day \[or 24 hours\] before blood and/or stool collection. 4. Participant has any condition that in the opinion of the Investigator should preclude taking part in the study.

Design outcomes

Primary

MeasureTime frameDescription
Stool-based biomarkers associated with genetic and epigenetic alterationsStool sample will be collected at least 7 days after the subject's pre-enrollment colonoscopy, but prior to initiation of bowel preparation for any follow-up procedureThe outcomes are co-primary. Biomarkers under evaluation include differential methylation of nucleic acids and altered expression of proteins in stool from subjects with confirmed colorectal cancer at the pre-intervention stage.
Blood-based biomarkers associated with genetic and epigenetic alterationsPoint in time blood collection (1 day) at enrollmentThe outcomes are co-primary. Biomarkers under evaluation include differential methylation of nucleic acids and altered expression of proteins in blood from subjects with confirmed colorectal cancer at the pre-intervention stage.

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026