Clinical trials
Colorectal (Colon or Rectal) Cancer clinical trials
Below are recruiting colorectal (colon or rectal) cancer clinical trials, each written for real people, not researchers. We’re tracking 898 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05316103Recruiting
Optical biopsy of rectal scars after cancer treatment
This trial tests a targeted “optical biopsy” (using a special light-based exam to sample tissue) to better assess rectal scars after standard chemotherapy and radiation before surgery. It may help surgeons choose the most appropriate way to operate on rectal cancer.
Guangzhou, GuangdongAges 18–80 - NCT05630794RecruitingPhase 1
Test ONC201 to prevent colorectal polyp return in high-risk people
This Phase 1 study tests whether ONC201 is safe and may help prevent colorectal polyps (adenomas) from coming back. You’d also undergo planned colon/rectum camera exams to check for new or changing polyps.
Ann Arbor, MichiganAges 18 years+ - NCT05646511RecruitingPhase 3
New chemotherapy timing tests for locally advanced rectal cancer
This Phase 3 trial compares two chemotherapy combinations given with surgery for locally advanced rectal cancer. It aims to find out which approach works better and is safer for shrinking and controlling the cancer before or around the time of treatment.
ChibaAges 18 years+ - NCT05845450RecruitingPhase 2
Pre-surgery targeted drugs for selected colorectal cancer tumors
This trial tests targeted cancer drugs given before planned colon or rectal surgery. It may help by trying to shrink the tumor and treat specific tumor “targets” found in your stored pathology sample, depending on your tumor’s genetics and marker tests.
Milan, Lombardia/MIAges 18 years+ - NCT05985954RecruitingPhase 1
Ulixertinib with cetuximab for colorectal cancer
This trial tests whether the drug ulixertinib, combined with cetuximab (and sometimes encorafenib), can help people with advanced or metastatic colorectal cancer who have already tried EGFR or BRAF-targeted therapy. It aims to find new treatment options for these patients.
Houston, TexasAges 18 years+ - NCT06146946Recruiting
Rectal cancer surgery trial: Skipping certain lymph node removal
This trial is testing whether a more limited surgery for mid and low rectal cancer can be safe, by avoiding removal of lymph nodes near the main artery. It may be a good fit if your tumor is in the lower rectum, hasn't spread far, and you are in generally good health.
Beijing, Beijing MunicipalityAges 18–75 - NCT06191120Recruiting
FAPI PET scan for aggressive colorectal cancer liver metastases
This trial uses a special PET scan (FAPI) to detect a specific, more aggressive type of colorectal cancer (CMS4) in people who have liver tumors that can be surgically removed. The goal is to see if the scan can help doctors choose the best treatment for you.
Utrecht, UtrechtAges 18 years+ - NCT06209099Recruiting
Organ preservation first for low-risk rectal cancer
This trial tests a strategy to avoid surgery by using watchful waiting after initial treatment for early-stage rectal cancer. It may help patients keep their rectum and avoid a permanent colostomy.
Beijing, Haidian DistrictAges 18–85 - NCT06229041RecruitingPhase 3
Chemo and radiation with or without immunotherapy for high-risk rectal cancer
This trial tests if adding immunotherapy to standard chemotherapy and radiation before surgery helps shrink high-risk rectal cancer and prevent it from coming back. You may be a good fit if you have a specific type of advanced rectal cancer that hasn't spread to other parts of your body.
BeijingAges 18–75 - NCT06287723Recruiting
Blood test for cancer DNA after liver surgery in colorectal cancer
This study uses a simple blood test (liquid biopsy) to look for tiny bits of cancer DNA after surgery for colorectal cancer that spread to the liver. It aims to see if this test can find cancer earlier than standard scans, which may help guide future treatment decisions.
MontpellierAges 18 years+ - NCT06328361Recruiting
Avoiding surgery for rectal cancer after good response to treatment
This trial tests a new approach: after initial treatment (like chemo or radiation), people with rectal cancer who have a complete response may be able to avoid surgery. Instead, they are monitored closely to see if the cancer stays away.
TallinnAges 18 years+ - NCT06349642Recruiting
Testing a live tumor test for immune therapy response
This trial uses a special test on live tumor samples to see if it can predict how well immune checkpoint inhibitors (a type of immunotherapy) will work for different cancers. It may help doctors choose the best treatment for you.
Phoenix, ArizonaAges 18 years+ - NCT06350370Recruiting
Colorectal Cancer Outcomes with NOSES Surgery
This study tracks patients with colon or rectal cancer who have a special type of surgery called natural orifice specimen extraction surgery (NOSES). The goal is to see how well patients do short-term and long-term after this procedure.
Beijing, Beijing MunicipalityAges 18–75 - NCT06366841Recruiting
Stigma and mental health in rectal and anal cancer patients
This study looks at how stigma (feeling judged or embarrassed) and mental health affect people with rectal or anal cancer who are getting long-course radiation. By answering questionnaires, you can help researchers understand these challenges and find better ways to support patients.
RomaAges 18–75 - NCT06405139RecruitingPhase 2
Chemo combo (nanoliposomal irinotecan, oxaliplatin, capecitabine) before surgery for locally advanced colorectal cancer
This trial tests a combination of three chemotherapy drugs (nanoliposomal irinotecan, oxaliplatin, and capecitabine) given before surgery to shrink locally advanced colorectal cancer that cannot be treated with radiation. The goal is to make the tumor removable with a better chance of complete removal (R0 resection).
BeijingAges 18–70 - NCT06424522Recruiting
Enema program for bowel problems after rectal cancer surgery
This trial tests a special enema program to help people with ongoing bowel problems (called LARS) after rectal cancer surgery. If standard treatments haven't worked, this program might offer a new way to manage symptoms like urgency and leakage.
Columbus, OhioAges 18 years+ - NCT06449989Recruiting
Comparing genetics of colorectal cancer and its brain spread
This study compares the genetics of the original colorectal cancer with the cancer that has spread to the brain. It aims to understand how the tumor changes when it metastasizes, which may help guide future treatments.
Moscow, MoscowAges 18 years+ - NCT06149481RecruitingPhase 1/Phase 2
STAR15 immunotherapy for metastatic colorectal cancer
This trial tests a combination of four drugs (SX-682, TriAdeno vaccine, retifanlimab, and N-803) to see if they can help people with colorectal cancer that has spread. It may be an option if you have already tried at least two standard treatments or cannot take them.
Bethesda, MarylandAges 18–120 - NCT06529523RecruitingPhase 2
Testing tislelizumab for dMMR colorectal cancer
This trial tests the immunotherapy drug tislelizumab for people with a specific type of colorectal or rectal cancer called dMMR. It aims to see if this treatment can shrink tumors or improve outcomes in patients who haven't had many other treatments.
New York, New YorkAges 18 years+ - NCT06536127Recruiting
Immune cells in non-spreading rectal cancer treatment
This study is looking at immune cells (NK cells and ImmunoScore) in the blood of people with rectal cancer that hasn't spread. It may help doctors learn more about how the immune system responds to standard chemoradiation treatment.
AvignonAges 18 years+ - NCT06617858RecruitingPhase 2
AMB-05X for colorectal cancer with ctDNA after treatment
This trial tests a drug called AMB-05X for people with colorectal cancer who have completed all intended treatments and show no signs of cancer on scans, but still have cancer DNA (ctDNA) in their blood. The goal is to see if AMB-05X can eliminate this remaining cancer DNA and prevent the cancer from coming back.
Houston, TexasAges 18 years+ - NCT06637462Recruiting
Studying standard treatment response before rectal cancer surgery
This study looks at how rectal cancer responds to the usual chemotherapy and radiation given before surgery. It aims to learn if certain molecular features of your tumor can predict how well it responds to treatment.
Middletown, New JerseyAges 18 years+ - NCT06745895Recruiting
Colorectal cancer and hepatitis C education and screening study
This study helps people who go to certain clinics get screened for colorectal cancer and hepatitis C. It provides information and support to those who haven't had all their recommended screenings yet.
Tampa, FloridaAges 45–75 - NCT06758830RecruitingPhase 2/Phase 3
Total neoadjuvant therapy vs surgery for rectal cancer
This trial tests whether a full course of chemotherapy and radiation before any surgery (called total neoadjuvant therapy) can help you avoid surgery and preserve your rectum. It is for people with a specific early stage of rectal cancer that has not spread.
VilniusAges 18 years+
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Common questions
- Are there clinical trials for colorectal (colon or rectal) cancer?
- Yes. Clin2 currently lists 898 recruiting colorectal (colon or rectal) cancer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a colorectal (colon or rectal) cancer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a colorectal (colon or rectal) cancer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.