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 893 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT02355379RecruitingPhase 3
Chemo after colon cancer surgery for adults 70 and older
This Phase 3 trial studies whether giving chemotherapy after surgery helps people age 70+ with stage III colon cancer. You would be compared to another planned treatment approach, aiming to lower the chance of the cancer coming back.
Fort de France, GuadeloupeAges 75 years+ - NCT02759744Enrolling by invitation
Laser treatment for certain prostate tumors guided by MRI images
This trial tests whether a precisely targeted laser procedure—guided by MRI images—can treat prostate cancer. It may help some men who have a certain type and location of tumor while aiming to avoid nearby sensitive structures.
Bethesda, MarylandAges 18–100 - NCT07425054RecruitingPhase 2
Chemoradiation with or without immunotherapy for anal cancer
This trial tests whether adding an immunotherapy drug (retifanlimab) to standard chemoradiation improves outcomes for people with locally advanced anal cancer. The treatment is adjusted based on HPV DNA levels in your blood.
Cleveland, OhioAges 18 years+ - NCT07460843Recruiting
Comparing two types of prostate biopsy for diagnosis
This study compares two methods of taking prostate biopsy samples (TB+PB vs TB+6SB) to see which is better at diagnosing prostate cancer. It is for men who have a suspicious spot on their MRI and meet certain PSA or exam criteria.
Beijing, Beijing MunicipalityAges 18–85 - NCT07541911Recruiting
Confocal Microscopy to Check Prostate Cancer Surgery Margins
This study tests whether a special microscope can help surgeons see cancer margins (edges) during prostate removal surgery to make sure all cancer is removed. It may help surgeons make real-time decisions about how much tissue to remove.
LondonAges 18 years+ - NCT07755592Recruiting
Using a blood test to find prostate cancer early
This study uses a simple blood test to look for microRNA patterns that may help spot prostate cancer earlier and avoid unnecessary biopsies. If you have elevated PSA or suspicious findings, this test might give more information about your risk.
ShanghaiAges 18 years+ - NCT06321536RecruitingPhase 2
Testing microbiota therapy for resistant bacteria in the gut
This study tests a treatment made from healthy donor stool (called microbiota therapy) given as an enema or through a feeding tube. It aims to help people who carry resistant bacteria that are hard to treat, by reducing or clearing those bacteria from the gut.
Atlanta, GeorgiaAges 18 years+ - NCT04797039Recruiting
MRI-guided freezing treatment for localized prostate cancer
This trial studies a treatment where doctors use MRI pictures to guide freezing of a prostate tumor. It may help men with smaller, well-placed prostate cancers who cannot or do not want surgery or radiation right now.
Rochester, MinnesotaAges 30–100 - NCT04742881Recruiting
Laparoscopic colon surgery comparison for bowel tumors or disease
This trial studies a low-impact approach to colon or upper-rectum surgery using small cameras (laparoscopy) to see if it works well and is safe. You may be eligible if you are scheduled for a specific type of colon/rectal operation and can safely be monitored during the study.
BayonneAges 18 years+ - NCT05334485RecruitingPhase 2/Phase 3
Pyridostigmine to treat slow bowel recovery after colorectal surgery
This trial tests whether pyridostigmine helps return bowel function faster after colorectal surgery when the gut is “stuck,” causing bloating and no gas or stool. It also checks safety and side effects compared with standard care.
Cleveland, OhioAges 18 years+ - NCT03842007Recruiting
Study of constipation symptoms and how bowel function works
This study looks at how normal bowel movements work, and what goes wrong in people with long-term constipation. It may help researchers better understand constipation causes, which can guide future treatments.
Rochester, MinnesotaAges 18–80 - NCT07431723Recruiting
Magnetic magnets to connect the intestines during surgery
This trial is testing a new way to connect parts of the large or small intestine using magnets instead of staples or stitches. It may help people who need certain types of colon or rectal surgery recover with less pain and fewer complications.
SantiagoAges 18–75 - NCT06369610RecruitingPhase 2
Less hormone therapy with radiation for prostate cancer
This trial tests whether some men with high-risk prostate cancer can safely receive less hormone therapy when combined with radiation. It aims to reduce side effects while still effectively treating the cancer.
Scottsdale, ArizonaAges 18 years+ - NCT05133024RecruitingPhase 2
Beetroot juice to help prevent bowel slowdown after colon surgery
This Phase 2 study tests whether drinking beetroot juice can reduce “postoperative ileus,” when the intestines temporarily don’t move normally after colorectal surgery. If it works, it may help you recover bowel function sooner after an elective laparoscopic colon and upper rectum operation.
EdegemAges 18 years+ - NCT06638502RecruitingPhase 1/Phase 2
Testing HRX215 for liver recovery after surgery
This trial tests a drug called HRX215 to see if it is safe and helps the liver recover after surgery to remove colon cancer tumors that have spread to the liver. It is for people who are having either a minor or major liver resection and have a low risk of liver failure.
Baltimore, MarylandAges 18–75 - NCT05822895Recruiting
Testing a real-time computer to help find colon polyps
This study checks whether a computer tool helps doctors find colon polyps during routine colonoscopy. If the tool improves detection, it could help find growths earlier and guide safer follow-up.
Singapore, SingaporeAges 21–90 - NCT07378631Recruiting
Radiation rectal injury subtypes and outcomes study
This study looks at different types of radiation rectal injury to understand how they affect recovery. It may help you if you have been diagnosed with this condition and are not currently undergoing cancer treatment.
Guangzhou, GuangdongAges 18–80 - NCT02886104Recruiting
Surgery versus local ablation for certain liver metastases
This trial compares two ways to treat colorectal cancer that has spread to the liver: removing liver tumors with surgery versus destroying them in place with local ablation. It may help doctors learn which approach works best for people whose disease can be fully treated and who have enough healthy liver left.
Guangzhou, GuangdongAges 18–80 - NCT07023471Enrolling by invitation
AI-assisted colonoscopy for cancer screening, tandem study
This study tests whether a smart computer program (artificial intelligence) can help doctors find more polyps during a standard colonoscopy for colorectal cancer screening. It may improve detection of early signs of cancer.
Bangkok, BangkokAges 40–85 - NCT03862781Recruiting
Quicker bowel recovery after minimally invasive right colon surgery
This study looks at whether a specific internal stitch connection (an anastomosis) helps your bowel start working sooner and may help you leave the hospital earlier after right colon surgery. It’s mainly for adults having planned, minimally invasive right hemicolectomy.
Grand Rapids, MichiganAges 18 years+ - NCT05546827RecruitingPhase 2
Pre-surgery radiation plus immunotherapy for mucosal melanoma
This Phase 2 trial tests giving radiation and immunotherapy before surgery for mucosal melanoma in the nose/sinuses or rectum. It may help shrink the tumor and improve outcomes while aiming to control the disease locally and in nearby areas.
Houston, TexasAges 18 years+ - NCT06496958Recruiting
Better colonoscopy with water, CO2, and a belly compression belt
This study tests a new approach to make colonoscopy easier and more comfortable by using water, carbon dioxide gas, and a soft belly compression device instead of the standard air. The goal is to help patients need less manual pushing from the doctor during the procedure.
Kaohsiung CityAges 45–80 - NCT06204341Recruiting
Finding the best radiation for high-risk prostate cancer
This trial compares different radiation therapy plans for men with high-risk prostate cancer that has spread to the lymph nodes. It aims to find the best way to treat the prostate and the surrounding lymph nodes while minimizing side effects.
Leidschendam, South HollandAges 18 years+ - NCT04359069Recruiting
Shorter urinary catheter time after pelvic surgery
This study looks at whether the urinary (Foley) catheter can stay in place for a shorter time after certain pelvic operations. It aims to see if timing of catheter removal is safer and more comfortable, especially for bladder function.
Los Angeles, CaliforniaAges 18 years+
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Common questions
- Are there clinical trials for colorectal (colon or rectal) cancer?
- Yes. Clin2 currently lists 893 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.