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 867 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07352995Enrolling by invitation
Gut temperature study during colonoscopy
This study uses a special probe to measure temperature inside the colon during a routine colonoscopy. It may help researchers understand conditions like IBD, Crohn's disease, and ulcerative colitis.
Boston, MassachusettsAges 18 years+ - NCT05782010Recruiting
Testing a hemorrhoid device for grade II or III hemorrhoids
This study tests how safe and well a hemorrhoid treatment device (PexyEazy®) works for adults with moderate-to-severe hemorrhoids (grade II–III). You may be a candidate if you fit the hemorrhoid grade and medical safety requirements and can follow the study plan.
FrölundaAges 18–84 - NCT07319364RecruitingPhase 1
Fecal transplant study for cancer treatment side effects
This trial tests whether fecal transplants (putting healthy donor bacteria into your gut) can help with side effects like diarrhea, constipation, or nausea caused by cancer treatments. It is for people with advanced gastrointestinal cancer who are about to start their fourth round of chemo or targeted therapy.
Zhejiang, HangzhouAges 18 years+ - NCT05791396RecruitingPhase 1/Phase 2
Fecal microbiome therapy to clear hard-to-treat gut germs
This trial looks at a treatment made from stool donors (called fecal microbiome therapy) to help remove carbapenem-resistant gut bacteria in the body. It’s mainly for adults who recently tested positive for these bacteria on a rectal swab, and it checks whether the therapy can help eradicate the germs.
RomaAges 18–85 - NCT07299071Recruiting
Computer-assisted detection to reduce advanced polyps at three-year follow-up
This trial tests whether a computer-aided detection (CAD) system helps doctors find more advanced polyps during screening colonoscopies, potentially reducing the risk of these polyps turning into cancer over three years. If you are undergoing a screening colonoscopy, this study may help improve early detection and prevention.
BayonneAges 18 years+ - NCT07271017RecruitingPhase 1
Robot-assisted prostate biopsy using a new ultrasound probe
This trial tests a robot-assisted method for taking prostate biopsies using a new type of ultrasound probe. It may help men with certain high-risk features get a more precise diagnosis.
Baltimore, MarylandAges 40–75 - NCT06946771Recruiting
MRI and prostate lesions: understanding diagnosis and prognosis
This trial uses MRI scans to study prostate lesions and see how they relate to diagnosis, pathology, and long-term outcomes. It may help patients with concerns about prostate health get more detailed imaging.
Wuhan, HubeiAges 18 years+ - NCT06930586Recruiting
Metabolic brain imaging for rectal cancer prognosis
This trial studies how brain metabolism changes in people with rectal cancer and whether those changes can help predict outcomes. It uses a special type of PET imaging to look at brain activity.
Henan, HenanAges 18 years+ - NCT07172685Recruiting
Triple therapy plus HIFU for high-tumor-burden prostate cancer
This trial tests a combination of hormone therapy, chemotherapy (docetaxel), and a targeted drug (apalutamide) with a focused ultrasound procedure (HIFU) for men with prostate cancer that has spread to many bones or organs. It may help control the cancer more effectively.
Jinan, ShandongAges 18 years+ - 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+ - NCT07052214RecruitingPhase 3
PSMA PET plus MRI to find prostate cancer
This trial tests if combining a PSMA PET scan with an MRI can better detect clinically significant prostate cancer than MRI alone. It may help men who have not had a prostate biopsy before and have certain risk factors.
Los Angeles, CaliforniaAges 18 years+ - 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 - NCT06983639Recruiting
Fecal test vs. colonoscopy follow-up after polyp removal
This trial compares using a simple stool test (FIT) versus a repeat colonoscopy to check for new polyps in people who have already had an advanced adenoma removed. It aims to see if the stool test is a safe and effective alternative for routine follow-up.
Arendal, AgderAges 40–75 - NCT05076500Recruiting
How radiotherapy changes a tumor’s immune response
This study looks at how a tumor’s immune system responds when you receive radiotherapy. It involves taking a planned pre-treatment biopsy so researchers can study immune and tumor changes and see if radiotherapy affects them.
ManchesterAges 18 years+ - NCT06923657Recruiting
PSMA PET/MRI for guiding biopsy after negative MRI
This study tests whether a special type of PET/MRI scan (PSMA PET/MRI) can help doctors find hidden prostate cancer in men who have a rising PSA but previous negative biopsies and a non-suspicious MRI. It aims to improve detection without skipping needed treatment.
Fuzhou, FujianAges 30–85 - NCT06841211Recruiting
Optimizing prostate biopsy for multiple MRI lesions
This study aims to find the best way to take tissue samples (biopsies) from the prostate when MRI shows more than one suspicious spot. It will help doctors know exactly where to biopsy to reduce false negatives and avoid missing cancer.
Beijing, Beijing MunicipalityAges 18–85 - NCT06817668Recruiting
Testing a new radiation approach for prostate cancer
This study is testing a new way of giving radiation for prostate cancer, called ePUHRT, combined with a standard brachytherapy boost (a small radioactive implant placed inside the prostate). It aims to see if this approach is well-tolerated and safe for people with higher-risk prostate cancer.
Indianapolis, IndianaAges 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 - NCT06641310Recruiting
Exercise therapy trial for people with familial adenomatous polyposis
This trial tests whether a home-based exercise program can help people with familial adenomatous polyposis (FAP) who have rectal polyps. You may qualify if you have FAP, have not had your rectum removed, have at least 5 rectal polyps larger than 2 mm, and are currently inactive.
Ann Arbor, MichiganAges 18 years+ - NCT06625034RecruitingPhase 3
Comparing two radiation planning methods for prostate cancer
This trial tests two ways to plan radiation treatment for prostate cancer: one using a computer program (RapidPlan) and the other using human experts. The goal is to see if the computer-assisted method works as well or better.
Scottsdale, ArizonaAges 18 years+ - NCT06578637Enrolling by invitation
BHB supplement study for familial adenomatous polyposis
This trial tests whether taking a supplement called beta-hydroxybutyrate (BHB) can help prevent polyps in people with familial adenomatous polyposis (FAP), a condition that causes many polyps in the colon. The study has two parts: one for people who have already had colon surgery, and another for those who still have their colon.
Philadelphia, PennsylvaniaAges 18 years+ - NCT06579911Recruiting
Micro-ultrasound vs. MRI for prostate biopsy
This trial compares two advanced imaging techniques—high-frequency micro-ultrasound and multiparametric MRI—to guide biopsies for men who may have aggressive prostate cancer. The goal is to see which method better detects cancer while reducing unnecessary biopsies.
Salzburg, State of SalzburgAges 18–99 - NCT06560021Enrolling by invitation
Random biopsies in inflammatory bowel disease surveillance
This trial looks at whether taking random biopsies during a routine colonoscopy is helpful for people with inflammatory bowel disease (IBD) who are at risk for colon cancer. It aims to understand if random biopsies can detect early signs of cancer or pre-cancer.
Birmingham, AlabamaAges 18 years+ - NCT06175325Recruiting
Embolization for hemorrhoids: a procedure without surgery
This trial tests a minimally invasive procedure called embolization (blocking the blood supply) to treat hemorrhoids that bleed or come back. It may be a good option if you want to avoid surgery.
Stoke-on-TrentAges 18 years+
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Common questions
- Are there clinical trials for colorectal (colon or rectal) cancer?
- Yes. Clin2 currently lists 867 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.