Study of rectal tumor biology and clinical data

This study uses a special blood test to look for traces of tumor DNA (ctDNA) and compares it with information from your original tumor tissue or a new biopsy. It’s done in people with locally advanced rectal cancer who are going to receive standard chemotherapy and radiation, aiming to better track the cancer’s behavior.

This study asks people with rectal cancer to share their experiences in clinical trials. It may help researchers understand what patients go through, and could improve how future rectal cancer studies are designed.

This study looks at patterns in the gut microbiome (gut bacteria) and gut chemicals (metabolites) to predict how rectal cancer may do after planned surgery. By understanding these markers, researchers hope to better forecast prognosis and tailor follow-up.

This study looks at how well rectal cancer responds to chemotherapy and radiation before surgery. It uses a genetic test on tumor tissue to predict whether the treatment will work for you.

This study looks at stool samples to see whether gut bacteria or other microbes help explain why some rectal cancers respond less well to treatment given before surgery. If you have mid or lower rectal cancer and are planning pre-surgery treatment, your information and stool sample may help researchers improve how treatment is chosen.

This study enrolls people with colon cancer found on biopsy and who are able to have surgery. It mainly builds a medical database to help researchers understand care and outcomes, and it depends on you consenting to participate.