Blood and Stool Sample Collection in Subjects With a Diagnosis of Colorectal Cancer or Colorectal Lesion: Act Fast
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ClinicalTrials.gov Identifier: NCT03789162 |
Recruitment Status :
Recruiting
First Posted : December 28, 2018
Last Update Posted : March 20, 2023
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Condition or disease |
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Colorectal Cancer |
Study Type : | Observational |
Estimated Enrollment : | 750 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Blood and Stool Sample Collection in Subjects With a Diagnosis of Colorectal Cancer or Colorectal Lesion: Act Fast |
Actual Study Start Date : | December 20, 2018 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | December 2023 |

Group/Cohort |
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Confirmed CRC with Residual Lesion
A diagnosis of CRC 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.
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- Stool-based biomarkers associated with genetic and epigenetic alterations [ Time Frame: Stool 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 procedure ]The 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 alterations [ Time Frame: Point in time blood collection (1 day) at enrollment ]The 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.
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 40 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Subject is male or female, 40 years of age or older.
- Subject 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.
- Post-colonoscopy, the residual lesion in the colon must be at least 1 cm in size as to require additional surgical excision or complex colonoscopic polypectomy.
- Subject understands the study procedures and is able to provide informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator.
Exclusion Criteria:
- 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.
- Less than 7 days between colonoscopy and blood and stool sample collection.
- IV contrast (e.g. CT and MRI) within 1 day [or 24 hours] of blood and/or stool collection.
- Subject has any condition that in the opinion of the Investigator should preclude participation in the study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03789162
Contact: Amber Cheng | 608.982.1588 | acheng@exactsciences.com |

Responsible Party: | Exact Sciences Corporation |
ClinicalTrials.gov Identifier: | NCT03789162 |
Other Study ID Numbers: |
2018-07 |
First Posted: | December 28, 2018 Key Record Dates |
Last Update Posted: | March 20, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Blood Draw Sample Collection Stool DNA |
Colorectal Neoplasms Intestinal Neoplasms Gastrointestinal Neoplasms Digestive System Neoplasms Neoplasms by Site Neoplasms |
Digestive System Diseases Gastrointestinal Diseases Colonic Diseases Intestinal Diseases Rectal Diseases |