NCT07211230

Collagenase Biobank Study

Collagenase Producing Bacteria as a Biomarker and Driver of Diet-induce Colorectal Cancer Recurrence and Metastasis Following Surgery

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 107 (estimated)
• Sponsor: University of Chicago · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to look at how bacteria present within the stool at the time of surgery and postoperatively may contribute to the development of cancer recurrence after surgery. By collecting stool and blood before and after surgery, the researchers hope to determine if certain types of bacteria, or products that the bacteria produce, promote the development of tumors after surgery. By collecting tumor tissue and growing cell lines, we hope this will help researchers better understand the behavior of these types of tumors.

Detailed description

The purpose of this study is to collect stool, blood, and tissue samples both before and after patients undergo surgery for colon cancer. These samples will be analyzed for their bacterial composition and function, and assayed for bacterial-derived metabolites. Additionally, these samples will be tested in the laboratory for their ability to promote tumor formation in cancer cells and in animal models of surgery. Finally, patients will undergo nutritional surveys to document their current nutritional intake. Integration of the patient's nutritional intake with the data from the analyzed biospecimens will allow the researchers to determine if these bacteria and/or their metabolites are more prevalent in patients who eat certain diets. Taken together, results from this study will provide knowledge as to the mechanisms by which tumors form after surgery and potentially allow for future therapies to prevent it.

Conditions

• Colorectal (Colon or Rectal) Cancer

Timeline

• Start date: 2026-08-01
• Primary completion: 2026-10-01
• Completion: 2026-10-01
• First posted: 2025-10-07
• Last updated: 2026-04-09

Locations

1 site across 1 country: United States