Clinical trials
Colonization clinical trials
Below are recruiting colonization clinical trials, each written for real people, not researchers. We’re tracking 436 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06340646Recruiting
Washington University cancer gene study
This study collects genetic information from people with certain cancers to learn more about cancer risks and outcomes. It may help researchers understand how genes affect cancer in different groups.
St Louis, MissouriAges 18 years+ - NCT06329453Recruiting
Gut immunity and brain health study
This study looks at how your gut's immune system relates to brain and nerve diseases. Researchers will collect samples during a colonoscopy to better understand connections between gut health and neurologic conditions like multiple sclerosis or Parkinson's disease.
North Haven, ConnecticutAges 18–99 - 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+ - NCT06317727Recruiting
Pulsed field ablation for removing colon polyps
This study tests a new way to remove colon polyps using short bursts of energy (pulsed field ablation) instead of standard methods. It may help people with polyps in the lower part of the colon that are not too large or complex.
LondonAges 18 years+ - NCT06314022Recruiting
Mobile app for better colonoscopy in cancer screening
This study tests a mobile app designed to help improve the quality of colonoscopies for people in a colorectal cancer screening program. If you have had a positive FIT test and are between 50 and 69, you may be able to join.
Valladolid, ValladolidAges 50–74 - NCT06287814Recruiting
Blood test to detect leftover cancer DNA in colorectal cancer patients
This study uses a simple blood test (liquid biopsy) to look for tiny bits of tumor DNA remaining after colorectal cancer surgery. It aims to see if the test can help predict whether the cancer will come back, especially in people with stage III cancer who will receive chemotherapy.
Montpellier, HéraultAges 18 years+ - NCT06282510RecruitingPhase 4
Nasal antisepsis to prevent Candida auris
This trial tests whether a nasal antiseptic can reduce or prevent Candida auris infections in people who have had this germ before. It aims to find a simple way to lower the risk of future infection.
Chicago, IllinoisAges 18 years+ - NCT06271941Recruiting
Reducing polyp return after large colon polyp removal
This trial is testing a standard way to remove large polyps from the colon and checking if it helps prevent them from coming back. It's for people who have a large non-cancerous polyp that needs to be taken out during a colonoscopy.
Montreal, QuebecAges 18 years+ - NCT06264219RecruitingPhase 1
Restoring gut bacteria after C-section birth
This trial tests whether giving a small dose of the mother's vaginal bacteria to babies born by C-section can help restore their gut microbiome. It may reduce the risk of allergies and other immune-related conditions later in life.
Gentofte Municipality, CopenhagenAges 18 years+ - NCT06272461Recruiting
Comparing lidocaine vs. ketamine for colorectal surgery pain
This trial compares two pain-relief medicines (lidocaine vs. ketamine) given through an IV during open colorectal surgery. It aims to find which one works better to reduce pain after surgery.
NabeulAges 18–90 - NCT06263088Recruiting
Equity in GI Cancer Care Study
This trial is looking for Black patients newly diagnosed with any stage of gastrointestinal cancer to help improve cancer care and make sure research includes everyone. By joining, you help doctors learn how to better support patients like you.
Cleveland, OhioAges 18 years+ - NCT06230731Recruiting
Oxygen levels in colon blood vessels during colonoscopy
This study measures oxygen levels in the colon during a routine colonoscopy to understand how blood flow differs between people with vascular lesions (abnormal blood vessels) and those with a healthy colon. It may help doctors better diagnose and treat these conditions.
Chicago, IllinoisAges 18–89 - NCT04780256Recruiting
Study of removing digestive tumors with an endoscopy procedure
This trial looks at people (18 or older) who already had a digestive tract tumor removed using an endoscopy procedure. It may help doctors learn how this approach works and what outcomes to expect after removal.
Reggio Emilia, REAges 18–100 - NCT06191185Enrolling by invitation
Improving colonoscopy follow-up after abnormal FIT
This trial tests a program to help people who had an abnormal FIT stool test follow through with getting a colonoscopy. The goal is to improve cancer screening by providing extra support through a care team and technology.
San Francisco, CaliforniaAges 18 years+ - NCT06197425RecruitingPhase 3
Extra chemotherapy after surgery for colorectal cancer with positive ctDNA
This trial tests whether giving more chemotherapy can help people who still have cancer DNA in their blood after surgery and standard chemotherapy for colorectal cancer. The goal is to prevent the cancer from coming back.
DijonAges 18–80 - NCT06202183Recruiting
Home exercise for gut health in young colorectal cancer patients
This study tests whether a home-based exercise program can improve the health of your gut bacteria during chemotherapy for young-onset colorectal cancer. It aims to help you feel better and potentially improve how well your treatment works.
Boston, MassachusettsAges 18–50 - NCT03891251Recruiting
Recorded videos during your colonoscopy
This study collects recorded video from routine colonoscopies. It may help researchers by providing real-world footage while you receive standard care.
JerusalemAges 18 years+ - NCT06165289Enrolling by invitation
Balloon dilation with PRP for Crohn's colon narrowing
This trial tests whether adding a platelet-rich plasma (PRP) injection to the standard balloon dilation procedure can help treat a narrowed section of the colon caused by Crohn's disease. It may offer a way to avoid or delay surgery for some patients.
Guangzhou, GuangdongAges 18 years+ - NCT06159634Recruiting
Traction vs. No traction for colon polyp removal
This study tests whether using a special 'traction' method makes it easier and safer to remove certain types of colon polyps during a procedure called endoscopic submucosal dissection (ESD). It may help people with large or difficult-to-remove polyps.
Houston, TexasAges 18 years+ - NCT06177184Recruiting
Donor milk for full-term cesarean-born babies
This study tests whether giving donor breast milk to full-term babies born by C-section can improve their gut health. If your baby was born by C-section and you plan to breastfeed, this trial may be a good fit.
Calgary, AlbertaAges 9 months+ - NCT05852457Recruiting
Testing a special endoscopy clip to close tissue openings
This study tests whether a new kind of endoscopy clip (a dual-action clip) works well to close openings or gaps seen during routine endoscopic procedures. It may help control bleeding, seal perforations or fistulas, or bring tissue edges together after certain stomach or throat procedures.
Orlando, FloridaAges 18 years+ - NCT06134687Recruiting
New stiffening tube for colon lesion removal
This trial tests a new flexible tube that becomes stiff to help doctors remove large or complex colon lesions during an endoscopic procedure. It may help people with certain types of flat or scarred growths that are harder to remove safely.
Houston, TexasAges 22 years+ - NCT06149585Recruiting
Bacteria changes in gum disease patients getting all dental implants
This study looks at how bacteria in your mouth change when all your teeth are removed and replaced with dental implants. If you have severe gum disease and need all your teeth extracted, joining this trial could help researchers understand your healing process.
Cleveland, OhioAges 21 years+ - NCT06111105Recruiting
Comparing blood tests to guide colon cancer treatment
This study compares different blood tests to find the best way to detect tiny bits of cancer DNA after surgery for stage III colorectal cancer. It aims to help doctors decide if additional chemotherapy is needed to prevent the cancer from coming back.
Graz, StyriaAges 18 years+
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Common questions
- Are there clinical trials for colonization?
- Yes. Clin2 currently lists 436 recruiting colonization 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 colonization 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 colonization 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.