Study of colorectal cancer spread in the belly lining

This study looks at how gut bacteria (the microbiome) change during treatment for colorectal cancer that has spread or cannot be removed. Researchers hope the findings may help improve understanding of how treatment works and how to tailor care.

This study looks for blood/tumor signals (“biomarkers”) that may help predict outcomes in people whose colorectal cancer returns and spreads after surgery. It mainly helps researchers understand who may do better or worse, which can guide future care.

This study looks at stored tumor samples to better understand appendiceal cancer that has spread to the lining of the abdomen (peritoneal metastases). Your tumor tissue from past procedures may help researchers learn more about the cancer and how it behaves.

This study looks at the way colorectal cancer appears when it spreads to the lining of the belly (peritoneum). It aims to see if certain patterns in the tissue can help doctors decide on the best treatment, such as whether to recommend surgery with heated chemotherapy. Taking part does not change your treatment—it just allows researchers to study your tissue samples.

This trial studies people whose cancer has spread to the lining of the abdomen (the “belly lining”), including cancers from the digestive tract or ovaries. You may be asked to join because the study aims to learn how to better match care to different patterns of this belly lining cancer spread.

This study looks at how certain blood markers (nucleosome and CTCF) clear from the body in people with colorectal cancer that has spread to the lining of the belly. It also includes people with other conditions to compare. The goal is to learn more about these markers to help guide treatment.