Colonic disorder

This study tests whether a vaccine can prevent C. difficile infection in adults 65 and older. About 32,000 participants will receive either the vaccine or a placebo shot. The study will track infections and side effects over up to three and a half years.

This study is for people with stage III colon cancer who have had surgery. It uses a blood test called Signatera to look for leftover cancer DNA. Depending on the results, patients get either immediate or delayed chemotherapy, and the type and length of chemo are tailored to thei…

This study tests whether MK-8690, a drug given as a shot, can help people with moderate-to-severe ulcerative colitis achieve remission. About 100 adults who haven't responded well to other treatments will receive either MK-8690 or a placebo. The main goal is to see if more people…

This early study is testing whether giving a transplant of healthy gut bacteria (called IMT) through a feeding tube is safe and doable in 40 adults who have had part of their colon removed due to diverticulitis or sigmoid colon cancer. Participants get the transplant a couple of …

This study tests if the drug vorinostat is safe and can help people with moderate-to-severe Crohn's disease by reducing gut inflammation. Participants who respond well may then receive a maintenance treatment with ustekinumab for up to two years. The goal is to control symptoms a…

This study will follow 100 people in Saudi Arabia with moderate to severe Crohn's disease or ulcerative colitis who are starting guselkumab. Researchers will measure how long patients continue the treatment in real-world clinics, along with early symptom improvements. No new drug…

This early-stage trial is testing whether a pill made from freeze-dried healthy donor stool (MTP-101P) is safe and can restore good bacteria in people having part of their colon removed. Forty adults aged 18-75 with colon polyps, early-stage cancer, or diverticulitis will take th…

This study tests a new drug called RO7790121 for people with moderate to severe ulcerative colitis, a condition that causes inflammation in the colon. About 350 adults who haven't responded well to other treatments will receive either the drug or a placebo. The main goal is to se…

This study tests whether adding a targeted, tumor-destroying treatment (like focused radiation or heat ablation) can help people with certain gastrointestinal cancers—such as colorectal, small bowel, or pancreatic cancer—continue their current systemic therapy longer when only a …

This study tests an experimental drug called HRX215 in people who had part of their liver removed because colon cancer spread there. The drug is meant to help the liver grow back and work better after surgery. About 80 adults will take either HRX215 or a placebo for 28 days, and …

This study tests an experimental pill called ISM5411 (Garutadustat) in 80 adults with active ulcerative colitis. Half receive the drug, half a placebo, and neither patients nor doctors know who gets what. The goal is to check if the drug is safe and helps control the disease.

This study tests whether giving two immunotherapy drugs (botensilimab and balstilimab) before surgery can shrink tumors and improve outcomes for people with advanced colon cancer that can be removed. About 100 adults with stage IIB to IIIC colorectal cancer will receive the drugs…

This study tests whether adding the experimental drug INCA33890 to standard chemotherapy and bevacizumab helps people with metastatic colorectal cancer that is microsatellite stable (a type that doesn't respond well to immunotherapy). About 700 adults who have not had prior treat…

This Phase 2 trial is testing three long-acting antibodies, alone or in combination, for people with moderate-to-severe ulcerative colitis. The study will enroll 645 adults to see if these treatments can reduce inflammation and lead to remission. Participants receive the antibodi…

This early-phase trial is testing an experimental oral drug called KST-6051 in adults with advanced or metastatic solid tumors that have a KRAS mutation, including certain lung, pancreatic, and colorectal cancers. The main goal is to check the drug's safety and how the body proce…

This study tests a new drug called RO7837195 for people with moderate to severe ulcerative colitis who haven't gotten better with other treatments. About 224 participants will receive either the drug or a placebo for 12 weeks to see if it can bring about remission. The goal is to…

This study is testing the drug vedolizumab (Entyvio) in 400 adults with moderate to severe ulcerative colitis or Crohn's disease. Participants first receive the drug through an IV for 6 weeks, then switch to injections under the skin for the rest of the year. The main goal is to …

This study tests a daily pill called etrasimod in 24 children aged 2 to 12 with moderate to severe ulcerative colitis, a chronic inflammatory bowel disease. The goal is to see if the drug can safely help children reach remission (few or no symptoms) over 52 weeks. Participants wh…

This study tests a device called ColoSeal ICD that is placed inside the colon after surgery to divert stool away from the surgical connection. The goal is to see if it is safe and feasible in 90 adults with rectal or rectosigmoid cancer. The device stays in place for about 10 day…

This study follows 40 children with Crohn's disease or ulcerative colitis who developed severe psoriasis from anti-TNF drugs and switched to ustekinumab. Researchers will check if their digestive symptoms stay controlled and if their skin improves after 3-6 months. The goal is to…

This phase 3 trial tests whether adding tirzepatide (a weight-loss drug) to mirikizumab (an anti-inflammatory drug) helps people with moderate-to-severe ulcerative colitis who are also overweight or obese. The goal is to see if the combination can reduce both gut symptoms and bod…

This phase I trial tests a surgical procedure called utero-ovarian transposition (UOT) to temporarily move the uterus, ovaries, and fallopian tubes out of the radiation field in women aged 18-40 with pelvic cancers. The goal is to preserve fertility and ovarian function during wh…

This study tests a new medicine called afimkibart in children aged 2 to 17 with moderate to severe ulcerative colitis, a disease that causes inflammation and sores in the colon. The goal is to see if the drug can safely help children feel better and achieve remission (no symptoms…

This study tests whether taking oral vancomycin while on other antibiotics can prevent a repeat Clostridioides difficile infection (CDI) in people who had one in the last 120 days. Researchers will compare vancomycin to a placebo in 300 adults. Participants take the study drug tw…

This study tests an oral drug called LY4268989 (MORF-057) in adults with moderate-to-severe ulcerative colitis. About 1,431 participants will receive either the drug or a placebo for up to 108 weeks. The goal is to see if the drug can safely help control the disease and improve s…

This study tests the long-term safety and effectiveness of mirikizumab in 150 children and adolescents with moderate-to-severe ulcerative colitis or Crohn's disease. Participants who completed earlier mirikizumab studies can join. The trial lasts about 172 weeks and aims to see i…

This study tests a new medicine called MH002, which contains live bacteria meant to restore gut health in people with mild-to-moderate ulcerative colitis. About 204 adults whose current treatment isn't working well enough will receive either a low dose, high dose, or placebo caps…

This study tests an experimental drug called SAR441566 in about 204 adults with moderate-to-severe ulcerative colitis, a chronic bowel disease causing inflammation and symptoms like diarrhea and bleeding. Participants will receive either the drug or a placebo for up to 52 weeks t…

This early-phase trial tests an experimental drug called RSC-1255, given alone or with hydroxychloroquine, in people with advanced solid tumors (like lung, colon, or pancreatic cancer) who have run out of standard options. The study has two parts: first, finding a safe dose, and …

This study is testing a treatment called BSJ019T in Japanese patients with liver cancer that cannot be removed by surgery and has not responded to standard treatments. The goal is to see if the treatment can control the cancer's growth and how safe it is. About 51 participants wi…

This study tests whether a special medical food called LH VIOLA, taken as a partial replacement for regular meals, can help people with Crohn's disease or ulcerative colitis who are at risk of malnutrition maintain or regain weight and muscle strength. About 146 participants will…

This phase 3 study tests the drug risankizumab in about 120 children aged 2 to 18 with moderate to severe ulcerative colitis. The trial has three parts: an initial 12-week IV treatment period, a 52-week maintenance phase where patients get one of two doses by injection, and a lon…

This study looks at how well etrasimod works for people with moderate to severe ulcerative colitis when used in normal doctor visits. About 360 adults aged 18 to 65 will take etrasimod as prescribed by their doctor and fill out health questionnaires online. Researchers will track…

This study looks at the long-term safety of a drug called vedolizumab given as a shot under the skin to children and teenagers with ulcerative colitis or Crohn's disease. About 70 participants who did well on the drug in an earlier study will keep getting it, while those who didn…

This study tests a new way to give chemotherapy for gastrointestinal cancers like colorectal and stomach cancer. Doctors will adjust the dose of one chemo drug (5-FU) based on how well each patient tolerates it, aiming to give higher doses to those who can handle it without sever…

This early-phase study tests a new treatment called TNhYP218 CAR T cells for people with solid tumors that have high levels of a protein called mesothelin, including mesothelioma. Participants' own immune cells are collected, modified in a lab to better attack cancer, and then gi…

This study is for people who have both an autoimmune disease (like rheumatoid arthritis, lupus, or multiple sclerosis) and an advanced cancer that has spread or cannot be removed by surgery. It tests the safety and effectiveness of the immunotherapy drug nivolumab, given alone or…

This study tests whether adding a new oral drug, LY4268989, to the existing treatment mirikizumab works better than mirikizumab alone for adults with moderate-to-severe ulcerative colitis. About 252 participants will receive either the combination or mirikizumab plus a placebo fo…

This study looks at how well risankizumab works for people with moderate to severe ulcerative colitis in real-world settings. About 200 adults in Germany and Austria will take the drug as prescribed by their doctor and be followed for up to 52 weeks. The goal is to see if symptom…

This study tests an experimental oral drug, GSK5460025, alone or with other cancer drugs, in adults whose solid tumors have specific genetic changes (dMMR or MSI-H). The goal is to see if the drug can shrink tumors and to check its safety. About 47 people with advanced cancers th…

This phase 3 trial is testing whether adding the targeted drugs calderasib and cetuximab to standard chemotherapy can help people with a specific gene mutation (KRAS G12C) in advanced colorectal cancer live longer without their cancer growing. About 477 participants will receive …

This study tests if upadacitinib, a newer pill, works as well as standard steroid injections for treating sudden, severe flare-ups of ulcerative colitis. About 46 adults with acute severe colitis will receive either upadacitinib or steroids for 3 months, with frequent checkups. T…

This study tests a combination of two drugs (fruquintinib and FOLFIRI) in people with advanced colorectal cancer that has spread. It is for those who have already had one prior treatment. The goal is to see if this new combination can help control the cancer longer and with manag…

This study is checking the long-term safety of guselkumab, a biologic drug given as a shot, in children with moderate to severe Crohn's disease, ulcerative colitis, or juvenile psoriatic arthritis. About 196 kids who already completed a prior guselkumab study and benefited from i…

This study follows 50 people with moderate to severe Crohn's disease or ulcerative colitis to see how long they stay on guselkumab in real-world settings. Researchers will measure treatment persistence and early symptom improvements using patient diaries. The goal is to understan…

This study tests an oral medication called ozanimod in children aged 12-17 with moderate-to-severe ulcerative colitis who haven't responded to standard treatments. The goal is to see if the drug can safely bring the disease into remission. About 120 participants will receive eith…

This study tests a drug called dostarlimab in 25 people with stage II or III colon cancer that has a specific genetic feature (dMMR). The drug is given before any surgery to see if it can shrink the tumor enough that surgery may not be needed. Participants receive the drug every …

This study tests a special form of vitamin B3 (nicotinamide) that releases in the lower gut to treat mild to moderate ulcerative colitis. About 459 adults will receive either a low or high dose of the vitamin or a placebo. The goal is to see if it can reduce symptoms and improve …

This study tests an investigational drug called duvakitug in people with moderate-to-severe ulcerative colitis who have already responded to treatment. The goal is to see if duvakitug can help maintain remission better than a placebo over 40 weeks, with an optional long-term exte…

This early-stage study is testing whether an oral probiotic called R-3750 is safe and tolerable for people with mild to moderate ulcerative colitis. About 36 adults will take the probiotic and be monitored for side effects, inflammation, and symptom changes. The goal is to see if…

This early-phase trial tests a new drug called CBI-1214 in 80 people with advanced colorectal cancer that has not responded to standard treatments. CBI-1214 is designed to connect the body's own immune T cells to cancer cells, helping the immune system attack the tumor. The main …

This study tests whether a capsule containing healthy gut bacteria (restorative microbiota therapy) is safe and feasible for people with severe colitis caused by cancer immunotherapy. About 20 participants with steroid-resistant colitis will receive either the bacteria or a place…

This study tests a daily pill called filgotinib in 80 children aged 8 to 17 with moderate to severe ulcerative colitis, a chronic gut disease. The goal is to see if the drug can reduce inflammation and help children feel better. All participants receive the drug, and the study tr…

This study tests a new antibody drug called XmAb942 for moderate-to-severe ulcerative colitis, a chronic inflammatory bowel disease. First, healthy volunteers will receive the drug to check safety. Then, about 270 people with ulcerative colitis will get either XmAb942 or a placeb…

This study tests a new treatment using a patient's own immune cells, called CAR T cells, that are specially designed to target and kill solid tumor cells while leaving healthy cells unharmed. It is for adults with certain advanced cancers, including lung, colon, pancreatic, ovari…

This early-stage study tests a new drug called XmAb819 in people with advanced clear cell kidney cancer that has come back or not responded to standard treatments. The main goal is to check the drug's safety and find the best dose. About 307 participants will receive the drug int…

This study tests if immunotherapy drugs (cemiplimab, fianlimab, and REGN7075) can clear leftover cancer DNA in the blood of colorectal cancer patients after surgery and chemotherapy. The goal is to delay or prevent the cancer from coming back. About 79 adults with stage II/III co…

This study is testing a new surgical stapler, called the Signia circular stapler, in people having left-sided colon, sigmoid, or rectal surgery. The goal is to see if it lowers the chance of a leak where the colon is reconnected. About 137 adults will take part, and the main focu…

This early-phase trial tests a new drug that delivers radiation directly to cancer cells carrying a specific protein called GRPR. The study includes 48 adults with advanced cancers like prostate, breast, lung, or colon cancer that have not responded to standard treatments. The ma…

This early-phase trial tests an oral drug called ALTA3263 in about 448 adults with advanced solid tumors (like pancreatic, lung, or colorectal cancer) that have a KRAS mutation. The main goals are to check safety, find the right dose, and see how the body processes the drug. Part…

This phase 3 trial tests whether the experimental drug JNJ-78934804 can help people with moderate to severe ulcerative colitis achieve remission better than the existing drug guselkumab. About 644 participants will receive either the new drug or guselkumab, and researchers will c…

This study tests a once-daily food supplement designed to improve gut bacteria in people with mild-to-moderate ulcerative colitis. About 162 adults will take either the supplement or a placebo for 24 weeks, alongside their usual treatment. The goal is to see if the supplement hel…

This phase 3 trial is testing whether giving chemotherapy before surgery, with or without a heated chemotherapy wash inside the abdomen during surgery, can help people with locally advanced colon cancer live longer without the cancer returning. About 1,083 participants will be ra…

This study tests a daily medication called etrasimod in 36 adolescents aged 12 to 17 with moderate-to-severe ulcerative colitis. The goal is to see if the drug can safely help control the disease and reduce inflammation over a year, with an option to continue treatment for up to …

This early-stage trial tests BDHK-2009, an experimental tablet for inflammatory bowel diseases like ulcerative colitis and Crohn's disease. The study involves 68 healthy adults aged 18 to 55 to see if the drug is safe and how the body handles it. Participants receive either a sin…

This early-stage study tests a new type of cancer vaccine made from irradiated tumor and nearby cells. It aims to see if the vaccine is safe and can help the immune system fight advanced solid tumors like osteosarcoma, pancreatic cancer, and others. About 54 people will take part…

This study will follow 500 people with Crohn's disease or ulcerative colitis who are starting guselkumab, a biologic drug. Researchers will measure how many achieve remission and how the treatment affects daily life, including fatigue and work productivity. The goal is to underst…

This study tests an experimental drug called BLU-924 (SAR449336) in people with advanced pancreatic, lung, or colorectal cancers that have specific KRAS mutations. The drug is designed to block the cancer-driving KRAS protein. The trial will enroll about 265 participants to evalu…

This study tests an oral medication called icotrokinra for people with moderate to severe ulcerative colitis, a chronic condition that causes inflammation and ulcers in the colon. About 882 adults and adolescents will receive either the drug or a placebo to see if it can bring ab…

This study tests whether transplanting healthy donor stool into the gut can help people with ulcerative colitis reach remission without steroids. About 85 adults with active UC will receive either fecal transplants or a placebo. The goal is to see if a larger, definitive trial is…

This study tracks 220 adults with moderate-to-severe ulcerative colitis or Crohn's disease who are starting guselkumab, a biologic drug. Researchers will measure how many achieve remission (symptom control) and whether they can stop steroids. The goal is to see how well the drug …

This study tests whether butyrate enemas can help Hispanic children aged 7-21 with mild-to-moderate ulcerative colitis. Butyrate is a natural substance made by gut bacteria that may reduce inflammation. The goal is to see if it can lower disease activity scores and improve marker…

This study tests whether two types of fibre supplements—acacia gum and microcrystalline cellulose—can reduce gut inflammation in people with ulcerative colitis. Sixty-nine participants will add one of the fibres or a placebo to their usual diet for six weeks. Researchers will mea…

This study follows 200 Chinese patients with moderate-to-severe ulcerative colitis who have never taken biologic drugs. They will receive guselkumab as part of their normal care. Researchers will measure changes in symptoms and quality of life over 48 weeks to see how well the dr…

This phase 2 study is testing two new drugs — mirikizumab (given by IV or injection) and LY4395089 (a pill) — in 60 adults with moderately to severely active ulcerative colitis or Crohn's disease. The goal is to see if these treatments are safe and can help control the disease. T…

This early-stage trial tests a new drug called PHN-012 in people with advanced colon, pancreatic, or lung cancer that has stopped responding to standard treatments. The drug is an antibody-drug conjugate, designed to deliver a powerful cancer-killing agent directly to tumor cells…

This Phase 3 trial is testing whether a new medicine called PF-08634404, combined with standard chemotherapy, works better than the current treatment Avastin plus chemo for people whose colorectal cancer has spread. About 800 participants who have not had prior treatment for meta…

This study tests whether fecal microbiota transplantation (FMT) capsules, made from healthy donor stool, can prevent C. diff infection from coming back better than standard antibiotics. About 100 adults with a first or first-recurrent C. diff infection will get either antibiotics…

This study tests a new drug called BI 3032950 in 80 adults with moderate to severe ulcerative colitis who haven't improved on other treatments. In the first part, the drug is given by IV every 4 weeks for 12 weeks. Those who respond then receive injections under the skin every 4 …

This study follows 400 adults with moderate to severe ulcerative colitis who are already prescribed upadacitinib (RINVOQ) by their doctor. Researchers will track how well the drug controls symptoms like diarrhea and rectal bleeding over two years. The goal is to see if early impr…

This study looks at whether keyhole surgery (laparoscopic) or traditional open surgery leads to better long-term results for colon cancer patients who have extra belly fat. About 664 adults aged 18 to 75 with colon cancer and a high Body Roundness Index will take part. The main g…

This phase 2 trial tests an experimental pill called HRS-7085 in 48 adults with moderate to severe ulcerative colitis. Participants receive either a low dose, high dose, or placebo for several weeks. The study checks for safety, symptom improvement, and how the drug moves through…

This large Phase 3 trial tests whether VE303, a capsule containing 8 harmless bacteria, can prevent repeat Clostridioides difficile (C. diff) infections. About 852 people who have had at least one prior C. diff infection will take VE303 or a placebo for 14 days. The main goal is …

This study tests an experimental drug called RMC-9805, taken as a pill, in adults with advanced solid tumors (such as lung, colorectal, or pancreatic cancer) that have a specific mutation in the KRAS gene called G12D. The drug is given alone or in combination with another oral dr…

This study tests a new therapy where a person's own white blood cells are collected, genetically modified in a lab to recognize and attack cancer cells with a specific mutation (KRAS G12V), and then infused back. Participants also receive chemotherapy and a drug to boost cell act…

This study tests a new drug called repotrectinib in people with advanced solid tumors that have certain gene changes (ALK, ROS1, or NTRK). The trial has two parts: first, finding a safe dose, and second, seeing how well the drug shrinks tumors. About 500 adults with advanced canc…

This study follows 200 adults with Crohn's disease or ulcerative colitis who are prescribed Zymfentra as part of their regular care. Participants answer online surveys about their bowel habits for one year to see if symptoms improve. The goal is to understand how effective this m…

This study is monitoring the safety and effectiveness of the drug Jyseleca (filgotinib) in Korean patients with rheumatoid arthritis or ulcerative colitis. Researchers will track side effects and disease activity over 24 weeks. About 2,040 participants are being observed during r…

This study tests whether adding the immunotherapy drug dostarlimab to standard chemotherapy (CAPEOX) before surgery works better than chemotherapy alone for a common type of colon cancer (MMRp/MSS). About 120 people with stage III or T4N0 colon cancer that has not been treated ye…

This study tests whether giving additional chemotherapy to people with stage III colorectal cancer who still have cancer DNA in their blood after standard treatment can prevent the cancer from coming back. About 1,660 participants will be randomly assigned to receive either FOLFI…

This study tests the long-term safety of an oral drug called zasocitinib (TAK-279) in adults with moderate to severe Crohn's disease or ulcerative colitis. Participants who responded to the drug in earlier studies can continue treatment for up to 3 years. The main goal is to see …

This study tests whether adding selenium supplements to standard advanced therapies (like biologics) helps people with moderate to severe ulcerative colitis achieve remission. About 180 participants will receive either selenium or a placebo for a set period. The goal is to see if…

This study tests a new drug called RC148 combined with chemotherapy as a first treatment for people with advanced colorectal cancer that cannot be surgically removed. About 80 participants will receive either RC148 plus chemo or the standard bevacizumab plus chemo. The goal is to…

This study tests whether a 4-week ketogenic diet before liver surgery can reduce fat in the liver and lower the need for blood transfusions. About 124 adults with fatty liver and colorectal cancer that spread to the liver will either follow the diet or get standard dietary advice…

This study looks at the long-term safety of a medicine called tulisokibart for people with moderate to severe Crohn's disease or ulcerative colitis. It is an extension study, meaning participants must have already taken tulisokibart in a previous study. The main goal is to see ho…

This study is testing whether a simple blood test that measures tumor DNA (ctDNA) can help doctors decide how much chemotherapy to give before surgery for colorectal or appendix cancer that has spread to the abdomen. The goal is to see if the test can identify patients who need s…

This study looks at the safety and effectiveness of Velsipity tablets taken daily for up to 52 weeks by people with moderate to severe ulcerative colitis. About 553 participants will be followed in real-world medical settings. The goal is to see if the drug can help control sympt…

This study looks at how well ozanimod works compared to azathioprine for people with steroid-dependent ulcerative colitis in Japan. Researchers will review medical records of 150 adults to see which drug helps patients stop steroids and stay symptom-free. The goal is to find a be…

This early study tests a new treatment for people with stage 4 solid tumors that have stopped responding to standard care. Patients receive an injection of iron-containing nanoparticles that travel to the tumor, then a machine creates a magnetic field to heat the particles and da…

This Canadian study tests a modified version of early post-operative chemotherapy given directly into the abdomen after surgery for peritoneal cancer from colorectal or appendix tumors. The standard treatment takes five days, but this new approach shortens it to two days using a …

This phase 2 trial is testing whether a combination of immunotherapy drugs (sintilimab, IBI310, and lenvatinib) can help people with non-metastatic dMMR/MSI-H stomach or colon cancers avoid radical surgery. About 34 participants will receive up to 24 weeks of treatment, and those…

This study tests a dietary supplement called ButyMixx in 40 adults with ulcerative colitis who are in remission. ButyMixx contains sodium butyrate and a beneficial yeast to support gut health. Participants take two sachets daily for 8 weeks, and researchers check for symptom chan…

This study looks at how children and teenagers with moderate to severe ulcerative colitis or Crohn's disease process a drug called vedolizumab when given as a shot under the skin. About 70 participants who already responded to vedolizumab given through a vein will receive the sho…

This study is testing an experimental oral drug called RMC-6236 in adults with advanced solid tumors (like lung, colorectal, or pancreatic cancer) that have specific RAS mutations. The main goals are to find safe doses and understand side effects. About 754 participants will take…

This early-stage study is testing a new drug called ALX2004 in people with advanced lung, head and neck, esophageal, or colorectal cancers that have not responded to standard treatments. ALX2004 is an antibody-drug conjugate designed to deliver a cancer-killing payload directly t…

This study is for people with colon cancer who still have signs of cancer in their blood (ctDNA positive) after surgery and standard chemotherapy. It tests whether switching to a combination of two drugs (trifluridine/tipiracil and irinotecan) can clear those remaining cancer cel…

This study tests an experimental drug called TQH3906 in adults with moderate-to-severe ulcerative colitis or Crohn's disease. About 135 participants will receive either the drug or a placebo for 12 weeks to see if it safely reduces inflammation and improves symptoms. The goal is …

This study is for children with ulcerative colitis or Crohn's disease who already completed a previous vedolizumab trial. It aims to see how safe the drug is over a longer period. About 240 kids will receive vedolizumab infusions or be observed without treatment. Researchers will…

This early-stage study is testing a new oral drug, PF-08032562, in people with advanced breast or colorectal cancer that has spread. The drug is given alone or with other cancer treatments. The main goals are to check safety, find the right dose, and see if it shrinks tumors. Abo…

This phase 2 trial tests whether adding a freeze-dried fecal microbiota transplant (FMT) to standard biologic drugs (vedolizumab or ustekinumab) helps people with ulcerative colitis reach remission more safely and effectively. About 40 adults with active UC will receive either FM…

This study tests a new drug called MDX2001 in people with advanced solid tumors that have spread. The main goals are to check the drug's safety and see if it can shrink tumors. About 285 adults with various cancers like lung, breast, or colon cancer will take part. This is an ear…

This study looks at whether a simple blood test can find tiny bits of cancer DNA left after surgery and chemotherapy for stage III colon cancer. If the test is positive, patients may get extra treatment with chemotherapy or immunotherapy to try to wipe out any remaining cancer ce…

This study looks at colorectal cancer patients whose disease is under control (no evidence of disease) but later develop a small number of lung tumors. Instead of starting chemotherapy right away, doctors will treat the lung spots with surgery or radiation and then watch closely.…

This study tests whether taking capsules made from healthy donor stool (fecal microbiota transplantation, or FMT) can prevent another bout of C. diff infection in people who have had it come back at least twice. 76 adults will receive either active FMT capsules or placebo, and re…

This study tests a sequential treatment for moderate to severe ulcerative colitis. First, patients take upadacitinib (a fast-acting pill) along with vedolizumab (a slow but safe infusion) for 8 weeks to quickly reduce inflammation. Then, they continue with vedolizumab alone for l…

This study is testing whether a Mediterranean-like diet called Nordiet can improve gut health and reduce inflammation in 160 teens and adults with Crohn's disease or ulcerative colitis. Participants will follow the diet for four weeks while researchers check changes in gut bacter…

This study watches 300 adults with moderate to severe ulcerative colitis who are prescribed etrasimod by their doctor. Researchers track symptoms like stool frequency and rectal bleeding over 52 weeks using health questionnaires. The goal is to see how well the drug works outside…

This study tests a new drug called duvakitug in about 980 people with moderate-to-severe ulcerative colitis. Participants receive either duvakitug or a placebo as an injection under the skin for up to 12 weeks. The goal is to see if the drug can help achieve remission, meaning le…

This study is testing an interleukin-23 monoclonal antibody, a drug that blocks a key inflammatory protein, in 200 adults with moderate to severe Crohn's disease or ulcerative colitis. Participants receive the drug and are followed for 54 weeks to see if they can achieve remissio…

This study compares two drugs—upadacitinib (a pill) and infliximab (an infusion)—as second-line treatments for acute severe ulcerative colitis. About 226 adults will be randomly assigned to one of the two drugs for 3 months. The main goal is to see if upadacitinib can reduce symp…

This study looks at two ways to treat colon cancer that has blocked the bowel. One option is emergency surgery to remove the cancer right away. The other is to first place a stent (a small tube) or create a stoma (an opening in the belly) to relieve the blockage, and then do surg…

This study tests two experimental drugs, elironrasib and daraxonrasib, given alone or together, in people with advanced solid tumors that have a specific KRAS G12C mutation. The goal is to see if the drugs are safe and can shrink or control the cancer. About 534 adults with lung,…

This phase 3 trial is testing whether adding the immunotherapy drug AK104 (cadonilimab) before and after surgery can improve outcomes for people with a specific type of colon cancer (MSI-H/dMMR). About 386 participants will be randomly assigned to receive either AK104 plus standa…

This study tests a new drug called SAR442970 for people with moderate to severe ulcerative colitis, a condition that causes inflammation and sores in the colon. About 99 adults will receive either the drug or a placebo to see if it can help control the disease and reduce symptoms…

This study tests two drugs, eltrekibart and mirikizumab, alone or together, in 140 adults with moderate-to-severe ulcerative colitis. The goal is to see if they can safely reduce inflammation and help patients achieve remission. Participants must have tried other treatments witho…

This early-stage study tests a new experimental drug called PF-07934040, taken as a pill, for people with advanced solid tumors that have a KRAS gene mutation. The trial includes patients with non-small cell lung cancer, colorectal cancer, and pancreatic cancer. Researchers will …

This study looks at how well newer inflammatory bowel disease (IBD) medications work in children whose previous anti-TNF treatment stopped working or didn't help. About 1,100 kids with Crohn's disease or ulcerative colitis will answer questions about their symptoms and health ove…

This phase II trial tests whether giving zanidatamab before surgery can shrink tumors in people with HER2+ colorectal cancer. About 38 participants will receive the drug intravenously, then undergo surgery. The study measures how much the tumor regresses and whether cancer return…

This trial is testing whether giving the immunotherapy drug pembrolizumab before surgery can improve outcomes for people with high-risk stage 2 or stage 3 colorectal cancer that has a specific genetic feature called mismatch repair deficiency. About 88 participants will receive p…

This Phase 1 trial is testing an oral drug called AUR107 in 50 adults with advanced solid tumors that have come back after prior treatment. The study aims to find a safe dose and understand how the drug moves through the body. It is the first time AUR107 is being tested in humans…

This study tests an oral biologic called MB-001 in 100 adults with moderate-to-severe ulcerative colitis. Participants take either MB-001 or a placebo daily for 12 weeks, then may continue in an open-label phase. Researchers will check for side effects and measure improvements in…

This study is testing a robotic device that doctors use through the anus to remove benign growths (polyps, adenomas) from the rectum and sigmoid colon. The goal is to see if the device can remove the entire growth in one piece safely, without causing bleeding or a hole in the bow…

This study tests a treatment called electrochemotherapy for people with tumors in organs like the liver or pancreas that cannot be removed by surgery. The treatment uses short electrical pulses to help chemotherapy drugs enter cancer cells more effectively. The goal is to shrink …

This study follows 200 adults in Japan with moderate to severe ulcerative colitis who are already prescribed risankizumab by their doctor. Researchers will track how well the drug controls symptoms like diarrhea and rectal bleeding over up to 156 weeks. The goal is to see if the …

This study tests whether a diet made from common American foods like sandwiches, grilled meats, and oatmeal can reduce inflammation and improve symptoms in people with ulcerative colitis. Over 8 weeks, 122 participants will receive catered meals and guidance from a dietitian. The…

This study tests two ways of giving heated chemotherapy directly into the abdomen during surgery for advanced gastrointestinal cancers that have spread to the lining of the belly. One method uses a fixed dose for everyone, while the other adjusts the dose based on the patient's b…

This study tests a new device called EndoTEM, which helps doctors use two instruments at once to remove large polyps from the lower colon. The goal is to see if it is safe and can remove the entire polyp in one piece. Thirty adults with large polyps or early cancer in the rectum …

This study tests a new device called the Pathfinder rigidizing overtube, which stiffens during colon polyp removal to give doctors better control. Researchers will compare it to the standard procedure in 66 adults with colon growths. The goal is to see if it makes the surgery fas…

This study looks at whether a drug called guselkumab can help people with moderate to severe Crohn's disease who did not improve or could not tolerate another drug called ustekinumab. About 60 adults will receive guselkumab and be followed for 52 weeks. The main goal is to see ho…

This early-stage trial tests whether a stool transplant (FMT) can help cancer patients who develop severe diarrhea or colon inflammation from immune-checkpoint inhibitor drugs. About 40 patients with various cancers will receive the transplant via colonoscopy. The main goal is to…

This study tests a new way of giving three chemotherapy drugs (TAS-102, oxaliplatin, and irinotecan) along with bevacizumab to people with advanced colorectal cancer that has stopped responding to standard treatments. The goal is to see if this approach can control the cancer and…

This study tests whether combining two drugs—vedolizumab and tofacitinib—can quickly bring moderate to severe ulcerative colitis under control. About 65 adults will receive both drugs for 8 weeks, and those who respond will continue on vedolizumab alone for nearly a year. The goa…

This trial compares two chemotherapy combinations after surgery for people with high-risk stage III colon cancer. About 308 participants will receive either mFOLFIRINOX or the standard mFOLFOX6 for 12 cycles. The goal is to see if the stronger combo delays cancer recurrence and i…

This study tests whether giving several fecal transplants (instead of just one) works better to clear repeat C. diff infections in people with ulcerative colitis. About 64 adults with active colitis and repeat C. diff will receive either one or multiple infusions of healthy donor…

This study tests whether fecal transplants from carefully selected 'superdonors' can help people with mild-to-moderate ulcerative colitis achieve remission. 42 adults with a recent diagnosis will receive either superdonor FMT or a placebo via colonoscopy and capsules. The main go…

This study looks at whether having surgery soon after a severe diverticulitis attack (within 7-10 days) leads to better quality of life than waiting 6-8 weeks. About 136 patients with complicated or recurrent diverticulitis will be randomly assigned to one of the two timing group…

This study tests whether a concentrated clotting drug (fibrinogen) can better control major blood loss during surgery for pseudomyxoma peritonei, a rare abdominal cancer. About 90 adults will be randomly assigned to receive either the drug or a standard blood product during their…

This study tests whether dapagliflozin, a drug currently used for diabetes, can help control inflammation in people with mild-to-moderate ulcerative colitis. Researchers will give 50 adults either dapagliflozin plus standard mesalamine or mesalamine alone, and track changes in sy…

This study tests whether adding tolecizumab (a PCSK9 inhibitor) to standard chemoimmunotherapy can better shrink locally advanced colon cancer before surgery. About 106 adults with a specific type of colon cancer will receive either the combination or standard treatment alone. Th…

This Phase 2 study is testing two new drugs, MT-501 and MT-201, in 140 adults with moderate-to-severe Crohn's disease or ulcerative colitis. The goal is to see if these treatments are safe and can improve symptoms and gut healing. Researchers will monitor side effects and measure…

This study follows 404 people who previously had either an AI-assisted or conventional colonoscopy. Researchers want to see if AI help lowers the risk of developing advanced colon polyps later. Participants will undergo a surveillance colonoscopy to check for new growths.

This study tests a new treatment made from donated cord blood cells that are engineered to recognize and attack colorectal cancer cells. It is for people with advanced or metastatic colorectal cancer that has not responded to standard treatments. The trial will check safety and e…

This study provides a fecal transplant product made from healthy donor stool to treat people with recurrent Clostridium difficile infection or multidrug-resistant urinary tract infections. The product is delivered by courier or FedEx after a contract is signed. The goal is to res…

This study tests whether taking freeze-dried fecal transplant capsules (PRIM-DJ2727) can help adults with ulcerative colitis stay in remission and avoid flare-ups. About 58 participants will take the capsules or a placebo for 12 weeks alongside their usual treatment. The goal is …

This study tests an experimental drug called HSK47388 in 150 adults with moderately to severely active ulcerative colitis, a chronic bowel disease causing inflammation and sores. Participants will receive either the drug or a placebo to see if it improves symptoms and helps heal …

This study is testing whether giving a short course of immunotherapy drugs before surgery can improve outcomes for people with early-stage colon cancer. Participants will receive a combination of nivolumab, ipilimumab, and possibly other drugs for about 6 to 12 weeks before their…

This study tests a procedure called chemoembolization for people with non-small cell lung cancer or lung tumors that have spread from other cancers. Doctors inject chemotherapy directly into the artery feeding the tumor and then block that artery with tiny beads. This traps the c…

This study looks at whether giving an extra dose of the antibiotic cefoxitin during appendix removal surgery can better prevent infections compared to the usual single dose before surgery. Researchers will measure antibiotic levels in blood, fat, and appendix tissue from 46 parti…

This study looks at whether using two drugs together (upadacitinib and vedolizumab) works better than just one drug (upadacitinib alone) for people with moderate-to-severe ulcerative colitis, a chronic bowel disease. Researchers will review medical records from 150 adults across …

This early-phase trial tests whether a patient's own immune cells, engineered to target BCMA and/or CD19, can calm severe ulcerative colitis that hasn't responded to other treatments. Twelve adults with moderate-to-severe active disease will receive a single infusion of these CAR…

This early-stage trial tests whether statins, a common cholesterol medicine, can prevent strictures (narrowing) in the gut for adults with Crohn's disease. About 20 participants will take either statins or a placebo daily for 6-12 months after surgery. Researchers will check for …

This program provides children and teenagers with moderate to severe ulcerative colitis or Crohn's disease continued access to vedolizumab, a medication given through a vein, after they finish a related study. It is for those who still benefit from the treatment and have no good …

This study tests whether taking a daily prebiotic supplement for 8 weeks can improve gut health and reduce inflammation in people with ulcerative colitis. Researchers will collect stool samples and track symptoms in 70 adults. The goal is to see if prebiotics can help manage the …

This study tests an experimental drug called SAR444336 in 54 adults with microscopic colitis who are currently in remission using budesonide. The goal is to see if the drug can help them stay symptom-free without needing budesonide. Participants will receive either the study drug…

This study is testing whether transplanting stool from a healthy donor into the colon can prevent recurrent C. diff infections. The procedure, done via colonoscopy, aims to restore good bacteria that keep C. diff in check. Researchers are tracking 500 people to see if this stops …

This study tests a combination of three drugs (trastuzumab-deruxtecan, capecitabine, and bevacizumab) as a first treatment for people with HER-2 positive colorectal cancer that has spread or cannot be removed by surgery. The goal is to see how well the drugs shrink tumors. About …

This study tests whether a lower dose of heated chemotherapy given during surgery works as well as a higher dose for people with pseudomyxoma peritonei, a rare cancer that spreads in the abdomen. About 176 participants will be randomly assigned to receive either the lower dose ov…

This study tests a new drug called MBRC-201 in people with advanced solid tumors (prostate, breast, colorectal, lung, or pancreatic cancer) that have not responded to standard treatments. The drug is an antibody-drug conjugate, designed to deliver a cancer-killing agent directly …

This study looks at whether giving the drug tislelizumab before surgery can help people with a certain type of colorectal cancer (dMMR/MSI-H). About 30 adults with stage II or III cancer will get three doses of the drug, then have surgery. Researchers will check if the cancer dis…

This Canadian study is testing whether switching to the drug guselkumab (Tremfya) can help people with inflammatory bowel disease (IBD) who didn't respond well enough to ustekinumab. Researchers will track symptoms, test results, and overall health in 200 participants over one ye…

This study tests whether frozen capsules containing processed stool from healthy donors can help people with mild-to-moderate active ulcerative colitis. Participants will take either the real capsules or a placebo for 12 weeks. The goal is to see if the treatment can bring the di…

This early-phase trial is testing whether giving the immunotherapy drug dostarlimab before surgery can help shrink tumors in people with a specific type of stage III colon cancer (called pMMR/MSS). Ten participants will receive two doses of the drug over six weeks, then undergo s…

This study tests a new magnetic device (Flexagon SFM) to connect parts of the colon after surgery, instead of traditional stitches or staples. About 65 adults undergoing colon surgery will receive the device via laparoscopy or endoscopy. The goal is to see if the magnetic connect…

This study tests a new drug called OD-07656 in people with moderate to severe ulcerative colitis, a chronic bowel disease. The goal is to see if it safely reduces symptoms like bleeding and diarrhea, and if it can make a follow-up treatment (vedolizumab) work better. About 57 adu…

This study tests an experimental oral drug called GS-5290 (tilpisertib fosmecarbil) in 176 adults with moderate to severe ulcerative colitis. Participants are randomly assigned to receive either the drug or a placebo for 12 weeks. The main goal is to see if the drug can improve s…

This Phase 3 trial tests whether giving chemotherapy before surgery (neoadjuvant) helps patients with obstructive colon cancer complete their full treatment plan. About 232 adults with stable microsatellite tumors will be randomly assigned to standard care or the new sequence. Th…

This study tests a treatment made from healthy donor stool (MTP-101-C) for cancer patients whose skin or gut side effects from immunotherapy don't get better with steroids. About 30 participants will take the oral capsules to see if the therapy is safe and can calm these side eff…

This study looks at different ways to perform a liver transplant in people whose colorectal cancer has spread to the liver and cannot be removed by surgery. Researchers will compare living versus deceased donor transplants, whole versus split organs, and one-stage versus two-stag…

This study tests whether adding mebendazole, a common deworming medication, to standard mesalamine therapy can improve symptoms in people with mild-to-moderate ulcerative colitis. 46 adults will take mebendazole or a placebo twice daily for 6 months. Researchers will measure chan…

This study tests whether adding upadacitinib (Rinvoq) to standard steroid treatment helps people with a severe ulcerative colitis flare-up recover faster and avoid emergency care or surgery. About 110 adults with acute severe ulcerative colitis will be randomly assigned to get ei…

This phase 3 trial tests whether treating 1 to 10 metastatic tumors right away with precise radiation improves survival compared to waiting 3 months. It includes 800 adults with lung, colorectal, or prostate cancer that has spread to a few spots. Participants are randomly assigne…

This program offers early access to upadacitinib (Rinvoq) for people with Crohn's disease, ulcerative colitis, certain types of arthritis, or atopic dermatitis who have no other suitable treatments and cannot join ongoing clinical trials. A doctor must decide if the potential ben…

This study tests a new treatment called CHM-2101 for people with advanced gastrointestinal cancers (stomach, colon, rectal, or neuroendocrine tumors) that have stopped responding to standard therapies. The treatment uses the patient's own immune cells, which are modified in a lab…

This study is testing whether adding the allergy medicine desloratadine to standard ulcerative colitis treatment can better control inflammation and symptoms. About 44 adults with mild to moderate ulcerative colitis will take either desloratadine plus mesalamine or mesalamine alo…

This study compares a newer, less invasive surgery (LISH) that saves part of the colon to the standard surgery (TRH) for people with colon cancer in specific areas. The goal is to see if the newer surgery leads to better long-term survival without the cancer coming back. About 56…

This phase 3 trial tests the immunotherapy drug dostarlimab against standard chemotherapy in 892 people with a specific type of colon cancer (dMMR/MSI-H) that has not spread. The goal is to see if dostarlimab alone can prevent cancer from coming back or causing death. Participant…

This study tests whether a daily supplement called nicotinamide riboside (a form of vitamin B3) can help children with mild to moderate ulcerative colitis. About 40 kids will take either the supplement or a placebo for 6 to 12 months, alongside their usual treatment. The main goa…

This study follows 500 people with ulcerative colitis who have already tried at least two advanced medications without success. Participants choose either to continue trying different medications or to have their colon removed (colectomy). Researchers will compare quality of life…

This study tests whether adding a special diet called the Crohn's Disease Exclusion Diet (CDED) to standard anti-TNF therapy can improve outcomes for people with active Crohn's disease or ulcerative colitis. Eighty adults starting anti-TNF drugs will be randomly assigned to eithe…

This Phase 1 trial tests TQB6411, an antibody-drug conjugate designed to bind to EGFR and c-Met proteins on tumor cells, blocking their growth signals and releasing a toxin to kill the cells. The study will enroll 216 adults with advanced malignant tumors to find the safest dose …

This early-phase trial tests a cancer vaccine (Pseudovax) combined with an immune booster and an immunotherapy drug in 10 people with pseudomyxoma peritonei, a rare abdominal cancer that has come back or cannot be removed. The goal is to see if the treatment is safe and can react…

This study tests whether applying tranexamic acid (TXA) directly to the colon during polyp removal can reduce bleeding during and after the procedure. About 200 adults having large polyps removed will be enrolled. TXA is a drug that helps blood clot and is already used in other s…

This study tests a chemotherapy drug called paclitaxel, given directly into the abdominal cavity, for people with appendix cancer that has spread. The goal is to find a safe dose and see if it helps control the disease. About 39 adults with advanced appendix cancer that cannot be…

This study looks at whether removing certain food additives (like carrageenan and polysorbates) from the diet can improve symptoms and gut health in people with moderately active ulcerative colitis. About 70 participants will be randomly assigned to either a normal healthy diet o…

This study tests whether breathing pure oxygen in a pressurized chamber (hyperbaric oxygen therapy) can help people hospitalized with moderate to severe ulcerative colitis flares. The goal is to see if this treatment can stop symptoms like rectal bleeding and frequent stools, and…

This study tests whether giving three rounds of heated chemotherapy directly into the abdomen after surgery works better than just one round for people with pseudomyxoma peritonei, a rare cancer that spreads in the belly. About 132 adults will be randomly assigned to one or three…

This study tests a new drug, APL-5125, in adults with advanced solid tumors like colorectal, pancreatic, and ovarian cancer. The goal is to see if the drug is safe and can shrink or control tumors. About 100 participants will receive the drug in two phases to find the best dose a…

This study compares two methods used during colonoscopy to remove large, flat colon polyps: marking the edges before removal or using heat to treat the edges after removal. The goal is to see which method better prevents polyps from growing back. About 342 adults with polyps 20 m…

This study compares robot-assisted surgery using the DaVinci Xi system to traditional open surgery for colon cancer near the right flexure or transverse colon. Researchers want to see if the robot approach yields better tissue quality, fewer complications, and shorter hospital st…

This phase 2 trial tests whether transplanting healthy gut bacteria (fecal microbiota transplant) can boost the effects of immunotherapy and chemotherapy in 30 people with advanced colon cancer that has spread to the liver. Participants receive the combination for six cycles, the…

This phase II trial is testing whether a new approach—using targeted radiation that spares lymph nodes, followed by chemotherapy and an immunotherapy drug—can improve outcomes for patients with a specific type of high-risk colon cancer. The study will enroll 52 adults whose tumor…

This study is testing whether people with Crohn's disease or ulcerative colitis who are in deep remission can safely reduce their dose of the biologic drug ustekinumab. Participants will either switch from injections every 4 weeks to every 8 weeks, or from every 8 weeks to every …

This phase II trial tests whether adding a special low-dose radiation therapy to standard chemotherapy and an immunotherapy drug can improve treatment for a type of colon cancer that usually doesn't respond well to immunotherapy alone. The study enrolls 38 adults with high-risk, …

This early-stage study tests a cancer vaccine that targets a common mutated protein (KRAS) combined with two immunotherapy drugs (balstilimab and botensilimab) in people with advanced colorectal or pancreatic cancer that has spread. The goal is to see if the combination can shrin…

This study is testing a new blood test called EXoPred that uses artificial intelligence and laser technology to find tiny particles from cancer cells. The goal is to detect breast, colon, pancreatic, ovarian, and lung cancers at an early stage. Researchers will enroll 1,400 peopl…

This study is testing a new blood test called DENEB that looks for tiny molecules (microRNAs) to find colorectal cancer and precancerous polyps early. Researchers will collect blood samples from 2,000 people who are also getting a colonoscopy. The goal is to see if the blood test…

This study is testing whether a real-time artificial intelligence system can help doctors find more sessile serrated lesions (a type of precancerous polyp) during colonoscopy. About 628 adults aged 40-80 will be randomly assigned to have a colonoscopy with or without the AI aid. …

This study is testing whether two substances in the blood, called TFPI-1 and TFPI-2, can tell the difference between people who have colorectal cancer and those who don't. About 303 adults aged 50 to 75 will take part, including some with suspected cancer and some without symptom…

This study is testing a new blood test that looks at RNA (genetic material) to quickly tell if a person with belly pain has an infection inside the abdomen, like appendicitis or diverticulitis. About 1,000 adults and children over age 7 with abdominal pain will give a blood sampl…

Colon cancer is common but preventable if caught early. While colonoscopy is the best screening tool, many people can't get one due to cost or time. This study collects stool and blood samples from 1,200 adults to find proteins that signal colon polyps or cancer. The goal is to d…

This study is testing a new capsule camera (CapsoCam Colon) that you swallow to detect colon polyps. About 330 adults aged 45-75 will swallow the capsule and then have a standard colonoscopy for comparison. The goal is to see if the capsule, with AI help, can accurately find poly…

This study is testing a new stool test that measures calprotectin, a protein that signals inflammation in the gut. The goal is to see if the test can help doctors diagnose Crohn's disease or ulcerative colitis and tell them apart from irritable bowel syndrome. About 220 adults wi…

This study tests an AI tool called EndoAIM that helps doctors measure the size of polyps found during a colonoscopy. Accurate size measurement is important because larger polyps (over 10 mm) have a higher risk of becoming cancer. The study will enroll 278 adults undergoing colono…

This study compares a new imaging technique called Texture and Colour Enhancement Imaging (TXI) with standard white light during colonoscopy in 219 people with inflammatory bowel disease (IBD). The goal is to see if TXI finds more dysplastic (precancerous) lesions. Each patient w…

This study is developing an artificial intelligence system that analyzes CT and MRI scans to diagnose and predict outcomes for digestive diseases like Crohn's disease, ulcerative colitis, and intestinal tuberculosis. Researchers are using data from 21 hospitals in China to train …

This study is testing a device called the AlgometRx Nociometer to see if it can measure inflammation in children with inflammatory bowel disease (IBD). The device checks how different nerve fibers respond, which may give doctors a clearer picture of disease activity. Researchers …

This study tests whether a stool DNA test (mt-sDNA) can accurately detect polyps or cancer in people who have already been treated for stage I-III colorectal cancer. Researchers will compare the stool test results to colonoscopy findings in 50 survivors. The goal is to see if the…

This study looks at whether the things people buy at stores—like pain relievers or digestive aids—could be early warning signs of cancer. Researchers will compare the shopping habits of 2900 people, some diagnosed with cancer and some not, to see if certain purchases happen more …

This study looks at how well the Shield blood test finds colorectal cancer and advanced growths in people aged 45 to 81 who are at average risk. About 3,375 participants will take the test and then have a colonoscopy to compare results. The goal is to see if the blood test works …

This study is testing a blood test (called a liquid biopsy) to see if it can find colorectal cancer, pre-cancerous growths (adenomas), and cancers linked to Lynch syndrome at an early stage. Researchers will enroll 1,200 people who have already had a colonoscopy. The goal is to s…

This study is testing an artificial intelligence model that combines CT scans, tissue images, and patient data to predict whether colorectal cancer will spread to the liver after surgery. Researchers will enroll 160 patients across multiple hospitals and follow them for two years…

This study is developing a blood test that uses tiny particles called exosomes and machine learning to detect colorectal cancer in people under 50. The test looks for specific microRNA patterns in the blood. Researchers will compare results from 400 people—some with cancer and so…

This study is testing a new type of PET scan that uses special probes to highlight digestive system cancers, such as stomach, liver, colon, and pancreatic cancers. Researchers will enroll 400 adults to see how well this imaging method finds tumors and tracks their response to tre…

This study looks at whether people who have had 1 or 2 small, non-cancerous polyps removed can safely wait 10 years for their next colonoscopy instead of the usual 5 years. About 9,500 adults aged 45-69 will be randomly assigned to one of two schedules: a colonoscopy at 5 and 10 …

This study tests whether Aquamin, a natural mineral supplement from seaweed, can prevent pouchitis—a painful inflammation of the J-pouch—in people with ulcerative colitis who have had their colon removed. About 52 participants will take Aquamin or a placebo for up to 8 months. Th…

This phase 3 trial tests whether a gradual taper of vancomycin is as good as a 10-day course of fidaxomicin at preventing another C. difficile infection. About 500 adults with a first or second C. diff episode will be randomly assigned to one of the two treatments. The main goal …

This study tests a new drug called AZD5148 to see if it can prevent repeat C. diff infections in adults. About 230 people will get either the drug or a placebo as a single injection. The goal is to stop the infection from coming back after standard treatment.

This early-phase study tests the safety of a drug called ONC201 (dordaviprone) in 36 adults at high risk for colorectal cancer due to familial adenomatous polyposis (FAP) or a history of many polyps. The drug aims to kill precancerous cells without harming normal ones. Researcher…

This study tests whether the drug etrasimod can prevent pouchitis, a common inflammation of the internal pouch created after colon removal surgery. Researchers will give either etrasimod or a placebo to 40 high-risk patients for 48 weeks and track how many develop pouchitis. The …

This study tests whether a specific diet can change gut bacteria and help prevent another C. difficile infection in adults who have had one. Twenty participants will receive prepared meals and health counseling, then follow a similar diet for 6 more weeks. Researchers will track …

This study tests EXL01, a single strain of a beneficial gut bacterium (Faecalibacterium prausnitzii), to see if it can prevent repeat Clostridioides difficile infections in people at high risk. About 56 adults who have had at least two C. diff episodes will take EXL01 or a placeb…

This study tests whether a smartphone app, combined with nutrition education, can help people at high risk for cancer eat healthier and reduce their cancer risk. About 170 participants will either get the app or standard advice, and researchers will measure changes in diet qualit…

This trial tests a prevention bundle for hospital patients who carry C. difficile bacteria but have no symptoms. The bundle includes enhanced room cleaning and special precautions. Researchers hope to prevent these carriers from developing active infections and spreading the bact…

This study tests an experimental drug called LMN-201 to see if it can prevent C. difficile infection from coming back after standard antibiotic treatment. About 375 adults with a recent C. diff infection will receive either LMN-201 or a placebo. The main goal is to see if more pe…

This study is testing a web-based tool that estimates a person's risk of developing Crohn's disease based on their lifestyle and family history. Researchers will enroll 80 healthy people who have a parent or sibling with inflammatory bowel disease. Participants will receive perso…

This study tests ways to improve colorectal cancer screening in Appalachia by mailing fecal immunochemical test (FIT) kits to 500 people who are due for screening. Some participants get an enhanced kit with a video brochure and gloves, plus phone or text reminders. The goal is to…

This study tests whether a special algorithm called PAGODA can reduce unplanned delays during FOLFOX chemotherapy for gastrointestinal cancers like colon, stomach, and esophageal cancer. About 420 participants will be randomly assigned to either standard care or the algorithm-gui…

This study tests whether cancer patients can complete a supervised exercise program from home using video calls. The program includes resistance training with dumbbells and aerobic exercise. Researchers want to see if this approach is practical and helps patients maintain functio…

This study tests whether yoga and mindfulness programs can improve quality of life, reduce inflammation, and even affect gene activity in people who have survived lung, colon, or non-Hodgkin's lymphoma cancer. One hundred survivors, at least six months past treatment, will be ran…

This study tests whether giving lactulose, a mild laxative, after complex appendix surgery helps the bowels start working again sooner. 150 adults will receive either lactulose or a placebo for a few days after their operation. The main goal is to see how quickly they can pass st…

This phase 3 trial tests whether Nuvastatic 300mg, a herbal supplement, can reduce cancer-related fatigue in adults with metastatic colorectal cancer who are receiving standard chemotherapy. About 250 participants will take either Nuvastatic or a placebo three times daily for abo…

This Phase 3 study tests whether Nuvastatic, a herbal supplement taken as a powder sachet three times daily, can reduce cancer-related fatigue in adults with stage IV colon cancer who are starting chemotherapy. About 180 participants will receive either Nuvastatic or a placebo fo…

This Phase 3 trial tests whether the experimental drug paltusotine can reduce flushing and diarrhea in adults with carcinoid syndrome caused by neuroendocrine tumors. About 141 participants will receive either paltusotine or a placebo daily for 12 weeks. The study measures how mu…

This study tests a small device placed under the skin near the tailbone that sends mild signals to a nerve, aiming to reduce sudden bowel urgency in people with ulcerative colitis. About 137 adults with the condition will take part. The device is implanted in a same-day procedure…

This study looks at whether watching a cartoon or playing a mobile game for 10 minutes before surgery can lower anxiety and fear in children aged 7 to 12 who are hospitalized for appendicitis. About 69 children will be split into three groups: one watches a cartoon, one plays a m…

This study tests whether taking omega-3 fish oil capsules and doing simple resistance exercises with elastic bands can help cancer patients maintain muscle mass and strength. It involves 288 adults with various cancers who are at risk of muscle wasting. The goal is to improve phy…

This study tests whether morning bright light therapy can help people with Crohn's disease or ulcerative colitis by reducing gut leaks and inflammation. About 30 adults with stable medication will use a light box each morning for 8 weeks. Researchers will check changes in gut bar…

This study tests whether a high-protein nutrition plan combined with resistance exercises, started weeks before surgery and continued for 24 weeks after, can help older adults with cancer preserve their physical function. The trial enrolls Veterans aged 55 and older with certain …

This study tests a personalized self-management program to help cancer survivors on immune checkpoint inhibitors better handle side effects and reduce anxiety or depression. About 400 adults with breast, colon, lung, skin, or rectal cancer who recently started immunotherapy will …

This pilot study tests whether brodalumab, a drug used for autoimmune conditions like psoriasis, can safely reduce immune-related side effects caused by cancer immunotherapy. About 11 adults with advanced solid tumors who developed these side effects will receive brodalumab injec…

This study tests whether a daily dose of Skal Pro—a mix of a friendly bacteria (Lactobacillus plantarum 299v) and a prebiotic fiber—can reduce IBS symptoms like belly pain, bloating, and irregular bowel movements. Sixty adults with IBS will receive either the supplement or a dumm…

This pilot study tests whether the MyIBDDiet app helps people with inflammatory bowel disease (IBD) learn about and follow an anti-inflammatory diet. Forty adults with IBD who are not in a flare will use the app for 30 to 60 days and complete surveys about its ease of use and the…

This study tests whether a special online therapy for insomnia, adapted for people with ulcerative colitis (UC), is helpful and practical. About 20 adults with active UC and insomnia will take part. They will complete online questionnaires, keep a daily sleep diary, and attend 5 …

This study tests whether a tablet-based video program can help rural cancer patients better understand their care and feel more coordinated. About 40 adults with early-stage breast, lung, or colon cancer living in rural Vermont will be randomly assigned to receive the videos righ…

This study compares two approaches to supportive cancer care for nearly 3,000 adults with cancer. One group gets information through email or their health record, while the other works one-on-one with a lay health worker over 12 months. The goal is to see which model better impro…

This study tests whether morning light therapy can improve sleep timing and reduce symptoms in people with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. Sixty-eight adults with active IBD symptoms will either use a light therapy device at hom…

This study tests whether patients with gangrenous appendicitis can safely go home shortly after emergency laparoscopic surgery instead of staying in the hospital. About 122 adults will be enrolled to compare safety, recovery, and costs. The goal is to see if outpatient management…

This study compares giving cancer treatment at home versus in the clinic for people with advanced cancers. The goal is to see if home treatment reduces stress, financial burden, and improves overall experience. About 220 participants will be randomly assigned to receive their reg…

This study tests whether a ketogenic (low-carb, high-fat) or carnivore (all meat) diet can improve quality of life and reduce symptoms in adults with inflammatory bowel disease (Crohn's or ulcerative colitis) or rheumatoid arthritis. Participants are randomly assigned to one of t…

This study tests if pentoxifylline, a drug already used for other conditions, can safely reduce symptoms of mild to moderate ulcerative colitis. About 60 adults will take the drug and be monitored for changes in bowel symptoms and quality of life. The goal is to see if this offer…

This study looks at whether people with certain cancers prefer getting their immune therapy as a shot under the skin (subcutaneous) or through a needle in a vein (intravenous). About 880 adults who are already eligible for standard treatments like nivolumab or pembrolizumab will …

This early-stage study tests a new drug called KAN-004 in 21 adults who have diarrhea or colon inflammation from cancer immunotherapy. The main goal is to see if the drug is safe and tolerable. Participants must have a solid tumor and be at least 18 years old.

This study compares same-day discharge versus staying overnight in the hospital after laparoscopic surgery for uncomplicated appendicitis. About 1,400 patients aged 15 to 74 with mild appendicitis will take part. The goal is to see if going home the same day is just as safe and l…

This study tests whether live, group-based exercise classes held over Zoom can help cancer survivors increase their physical activity, improve fitness, and enhance quality of life. Researchers will randomly assign 300 cancer survivors to either live online classes or recorded exe…

This study compares two ways to remove abnormal growths from the colon: using a special traction device versus the standard method. The goal is to see if the device makes the procedure faster and reduces complications. About 150 adults with certain types of colon growths will tak…

This study tests a 'fast-track' recovery plan for children aged 2 to 17 who had surgery for a burst appendix. The goal is to see if they can go home sooner without raising the risk of problems like infection or needing another surgery. About 772 children will take part, and their…

This study tests whether a special home-based program (ERAS 3.0) can help older, frail patients recover better after colon cancer surgery. The program includes a health check, diet advice, and exercise guidance at home. Sixty participants will be randomly assigned to either the p…

This study compares two types of nerve blocks (ESP block and TAP block) to see which one works better for pain relief after open appendix surgery. About 68 adults having this surgery will be randomly assigned to receive one of the two blocks. The main goal is to see which block r…

This study tests whether one hour of morning light therapy each day for four weeks can improve sleep quality and reduce inflammation in adults with ulcerative colitis who have active inflammation and poor sleep. Thirty participants will wear a sleep tracker, complete surveys, and…

This study compares two sedative drugs, remimazolam and propofol, in 90 adults having colonoscopy to remove polyps. The goal is to see which drug keeps the heart and breathing more stable during the procedure. Results may help choose safer sedation for routine colonoscopies.

This study tests whether a special 5-day diet that mimics fasting can lower inflammation and improve quality of life in people with mild to moderate ulcerative colitis. Participants will follow the diet for three cycles while researchers track symptom changes. The goal is to see …

This study tests whether adding fermented foods like kimchi, sauerkraut, yogurt, and kefir to the diet can reduce inflammation and improve quality of life in people with mild to moderate ulcerative colitis. Researchers will measure changes in a stool marker of inflammation and tr…

This study compares pain levels after two types of minimally invasive colon surgery: robotic and laparoscopic. About 80 adults having elective colon cancer surgery will take part. Researchers will measure pain at several time points after surgery and track recovery, complications…

This study tests whether placing the numbing drug bupivacaine into the abdomen during open appendix surgery can reduce pain afterward. Sixty adults having open appendectomy will receive either bupivacaine or a saltwater placebo. Researchers will measure pain levels and how often …

This study tests whether using virtual reality (VR) can reduce severe belly pain and improve quality of life in people with digestive tract cancers. 360 participants will be split into three groups: one using a skills-based VR program, one using distracting VR videos, and a contr…

This early study tests a device called UCon, which is placed on the skin to send mild electrical pulses to nerves that control the bladder and bowel. The goal is to reduce symptoms like sudden urges, leaks, and frequent bathroom trips in women with overactive bladder or bowel dys…

This study looks at whether a single educational session about the benefits of exercise can help people with Crohn's disease or ulcerative colitis (IBD) become more physically active. The goal is to reduce fatigue, improve digestion, and enhance quality of life. About 71 adults w…

This study tests whether a smartphone app that lets cancer patients report their symptoms, combined with regular calls from a specially trained nurse, can help them better manage chemotherapy side effects and improve their quality of life. The study includes 414 adults with early…

This study tests whether giving lidocaine (a numbing drug) through a vein during colon cancer surgery can reduce pain, lower the need for strong painkillers, and help the bowel start working sooner. One hundred adults undergoing laparoscopic colon cancer surgery will be randomly …

This study tests a program called CARES that provides nurse navigators and counselors to rural cancer patients. The goal is to see if this support helps patients start and finish treatment more quickly and improves their quality of care. About 320 adults with solid tumors like lu…

This study looks at whether people with moderate-to-severe inflammatory bowel disease (IBD) need to take a steroid (dexamethasone) before each infliximab infusion to prevent allergic reactions. Researchers will compare those who get the steroid routinely with those who only get i…

This study tests whether a probiotic called BioAmicus Complete can improve common stomach issues like colic, reflux, constipation, and diarrhea in infants up to 24 months old. About 110 babies will take the probiotic or receive standard care for 42 days. Parents will report sympt…

This study tests whether a high-flow nasal cannula (HFNC) can prevent dangerous drops in oxygen levels during sedated gastrointestinal endoscopy in critically ill patients. Researchers will compare HFNC with standard nasal oxygen in 450 adults with serious health conditions. The …

This study tests whether a daily breathing exercise called cardiac coherence can lower anxiety in people awaiting surgery for peritoneal cancer. About 60 participants will either practice the technique or receive standard care. The goal is to see if this simple, drug-free method …

This study tests a proprietary amino acid drink given twice daily for up to 4 days to older adults (60+) hospitalized with infections who have delirium. 20 participants get the drink, 20 get standard care, and 20 non-delirious controls are observed. The goal is to see if the drin…

This study looks at whether aerobic exercise can help people with stage II or III colon cancer tolerate more of their planned chemotherapy. About 219 participants who have had surgery and are about to start chemo will be randomly assigned to an exercise program or a control group…

This study tests whether fecal microbiota transplantation (FMT) – taking donor gut bacteria in capsules – can prevent or reduce gastrointestinal symptoms like nausea, vomiting, and diarrhea caused by chemotherapy or targeted therapy. It involves 90 adults with advanced (Stage IV)…

This study tests a high-fiber product called NBT-NM108 in 42 people with advanced colon cancer who are receiving a chemotherapy drug called irinotecan. The goal is to see if the supplement can reduce or prevent the severe diarrhea that often comes with this treatment. By helping …

This study looks at whether having a healthcare provider directly contact close relatives of people with newly diagnosed colorectal cancer leads to more genetic testing than having the patient share the information themselves. About 4,186 patients and their relatives will take pa…

This study looks at a treatment called HIPEC, where heated chemotherapy is washed inside the abdomen after surgery to remove tumors. Researchers want to see if lab-grown tumor models can predict how well the chemotherapy works. Sixty adults with cancers that have spread to the ab…

This study tests a 20-step recovery plan (ERAS) for children aged 5-18 having laparoscopic appendix surgery. The goal is to see if the plan can be followed closely and safely in a hospital. Researchers will track how well the steps are followed and check for any major problems or…

This study investigates clonal hematopoiesis (CH) — small mutations in blood cells that can arise naturally or after cancer treatment — in adults receiving chemotherapy or radiation for solid tumors like breast, lung, or colorectal cancer. Researchers will collect blood, saliva, …

This study is building a huge registry of information and biological samples from adults with or at risk for many types of cancer, as well as healthy volunteers. Researchers will use this resource to study what causes cancer and how to better prevent, detect, and treat it. The re…

This study looks at stored tumor samples from 400 people with appendiceal cancer. Researchers will analyze DNA and RNA modifications to find patterns linked to how the cancer behaves. The goal is to create a molecular score that could one day help doctors predict outcomes more ac…

This study looks at how children with Crohn's disease or ulcerative colitis burn energy at rest. Researchers will measure resting energy expenditure using a special breathing test and compare it to standard formulas. The goal is to see if energy use is linked to disease activity …

This study tests a digital app called the Genetics Adviser for Mainstream Care (GA-Mainstream) that educates cancer patients about genetic testing and delivers their results. Researchers want to see if using the app reduces distress and improves the patient experience compared to…

This early-phase study is testing whether afimkibart, an experimental drug for ulcerative colitis, changes how the body processes common medications like caffeine, warfarin, and omeprazole. About 25 people with moderate to severe active ulcerative colitis will receive afimkibart …

This study looks at bile acid profiles in children with ulcerative colitis (UC) who also have a C. difficile infection. Researchers want to see if changes in bile acids and gut bacteria make these children more vulnerable. They will compare three groups: children with UC flare-up…

This study is testing whether a blood test that looks for cancer DNA (called a liquid biopsy) can find leftover cancer cells after surgery in people with stage III colorectal cancer. The goal is to see if this test can help doctors decide who needs additional treatment and who ca…

This study tests a new method called mass-based response testing (MRT) to help doctors choose the best chemotherapy drugs for patients with advanced appendix or colorectal cancer that has spread to the abdomen. The MRT device analyzes live tumor cells to see which drugs work best…

This study collects small tissue samples (biopsies) from people undergoing routine endoscopy and grows them into mini-organs called organoids in the lab. These organoids mimic the real intestine and help researchers understand diseases like Crohn's and ulcerative colitis. The goa…

This study looks at people who have a gene variant (called a secondary finding) that was found during genetic testing for another reason. Researchers want to understand how these variants affect health, how people respond to the news, and whether they follow medical advice. Up to…

This study enrolls 400 adolescents and young adults (ages 18-39) recently diagnosed with various cancers. Participants are randomly assigned to either choose which health-related questions they answer or receive a fixed set of questions. The goal is to see if giving patients a ch…

This study aims to learn how the immune system controls inflammation in the gut for people with Crohn's disease or ulcerative colitis. Up to 1,000 participants aged 0 to 75 will receive standard medical care and may provide blood, tissue, or white blood cell samples. No experimen…

This study aims to collect medical data and biological samples (blood, urine, stool, and tissue) from up to 4,000 adults with known or suspected gastrointestinal diseases. Participants receive standard medical care at the NIH, and any extra samples or leftover tissue from procedu…

This study follows about 1,182 pregnant women with ulcerative colitis who are taking or have taken ozanimod. Researchers will watch for any health problems in the mothers and their babies, such as birth defects or pregnancy complications. The goal is to learn whether the drug is …

This study is looking for genetic clues that might predict how well people with inflammatory bowel disease (IBD) will respond to a common treatment called anti-TNF therapy. Researchers will collect blood samples from 40 patients who have not used anti-TNF before and track their r…

This study looks at whether a specific dissolvable stitch (Monoplus) can lower the chance of a leak where the bowel is reconnected after colon cancer surgery. About 249 people having either keyhole or open surgery will take part. The main goal is to see if the leak rate within 30…

This study uses health insurance claims data from Korea to count how many children under 18 have Crohn's disease or ulcerative colitis, and how their treatment changes as they grow. Researchers will look at patterns of medication use, hospital visits, and costs over several years…

This study provides long-term follow-up for people who previously received gene therapy or other immunotherapy for cancers like prostate, liver, breast, colon, or lung cancer. Participants will have annual health check-ups or phone calls for up to 15 years to monitor for any long…

This study looks at whether preserving the left colic artery during colon or rectal cancer surgery helps keep the remaining colon well-supplied with blood. Surgeons will temporarily clamp the main artery and use a green dye to measure blood flow. The goal is to see if this techni…

This trial tests whether an AI tool can help surgeons better predict risks for patients undergoing colorectal cancer surgery. About 1,200 patients across Denmark will be randomly assigned to have their risk assessed by a surgeon using standard methods or with AI assistance. The g…

This study looks at whether a protein in the blood called LRG can accurately show how active Crohn's disease or ulcerative colitis is in the gut. Researchers will compare LRG levels with standard endoscopic and symptom scores in 100 European adults. If successful, LRG could becom…

This study collects blood and other biospecimens from adults with cancer to analyze immune-suppressing cells and genetic changes. Up to 1,750 participants will provide samples before and after chemotherapy. The goal is to better understand how cancer affects the immune system, bu…

This study looks at how well a telehealth program called National TeleOncology works for veterans newly diagnosed with lung, colorectal, prostate, or breast cancer. Researchers will track how many veterans use telehealth visits and whether the program affects the quality of care …

This study is testing a new single-port robotic system for colorectal surgeries, such as for cancer or rectal prolapse. The goal is to see if it is safe and works as well as current multi-port robots. About 25 adults will take part, and researchers will track complications and re…

This study is comparing two approaches for people with recurrent, uncomplicated diverticulitis: elective surgery to remove part of the colon versus conservative (non-surgical) management. The goal is to see which approach leads to better bowel function and quality of life. Resear…

This study is for Black adults newly diagnosed with gastrointestinal cancer. It focuses on ensuring patients receive proper biomarker testing and evidence-based care, helping them find and join clinical trials if they choose, and providing easy-to-understand information about the…

This study is tracking over 25,000 people with inflammatory bowel disease (IBD) to understand why many continue to have abdominal pain even when their disease is in remission. Researchers will use questionnaires, blood and stool samples, heart rate recordings, and genetic data to…

This study is testing an educational tool designed for people with melanoma who also have an autoimmune disease and are considering treatment with immune checkpoint inhibitors. Researchers want to see if the tool is easy to use and helpful for both patients and healthcare provide…

This study collects tumor samples from 60 patients with colorectal cancer before they receive any chemotherapy. Researchers will grow mini-tumors (organoids) in the lab to study how the immune system and tumor cells interact. The goal is to understand why 30-50% of patients do no…

This study will compare kidney function in 3,000 adults with Crohn's disease or ulcerative colitis to 3,000 adults without these conditions. Participants will provide blood and urine samples and have a kidney ultrasound. The goal is to learn how common kidney problems are in IBD …

This study is looking at whether a substance in the blood called LRG can help doctors tell how active ulcerative colitis or Crohn's disease is in the gut. Researchers will measure LRG levels in 300 people who might have these conditions and compare them with what is seen during a…

This study follows 3,500 adults with large colon polyps (20 mm or bigger) to see how well current removal methods work. Doctors will record details about the patients, polyps, and procedures. The goal is to learn what leads to successful removal without surgery and to track any c…

This study looks at how eating different amounts of cysteine—a protein building block—affects gut bacteria and inflammation in people at higher risk for colon cancer. Researchers will compare Black and White adults aged 45-75 who have had colon polyps. Participants will follow bo…

This early-phase trial is looking at how vitamin D affects colon cancer at the genetic level. About 80 people with stage I-III colon cancer or resectable liver metastases will take either high-dose vitamin D or a placebo for 14-28 days before their scheduled surgery. Researchers …

This study tests whether Fitbit data (like heart rate and activity) can help predict infections in children recovering from complicated appendectomy. Researchers will develop an algorithm and see if it helps doctors make decisions. 500 children aged 3-18 are being enrolled.

This study looks at how much energy, water, and waste are used during different types of bowel imaging tests for people with ulcerative colitis or Crohn's disease. The goal is to see if a simple, non-invasive ultrasound can be a greener alternative to colonoscopy and CT scans. Ab…

This study follows 250 people with chronic diverticular disease to see if elective sigmoidectomy (surgery) improves quality of life compared to conservative care (diet, pain relievers, laxatives). Participants are recruited from a surgical clinic in Denmark. The main outcomes are…

This study looks at whether a blood test that detects tiny bits of tumor DNA after surgery can help decide which stage II colon cancer patients should get chemotherapy. About 1,320 patients will be randomly assigned to either have their test results used to guide treatment or to …

This study follows 153 people aged 60 and older with inflammatory bowel disease (IBD) to see how disease activity affects frailty. Researchers will also check whether frailty raises the risk of hospitalization or death. Participants will have their frailty, IBD symptoms, and over…

This study is testing whether a website with a virtual community health educator can help Black and Hispanic cancer patients in Florida learn about and sign up for clinical trials. About 350 adults will be randomly assigned to either a standard information portal or one with a vi…

Researchers are developing a simple tool to predict how difficult a laparoscopic appendectomy (keyhole appendix removal) might be. They will study 500 patients and look at factors like age, weight, and inflammation levels. The goal is to help surgeons prepare better and improve p…

This study looks at the long-term safety of the drug ustekinumab compared to other biologic treatments in adults with Crohn's disease or ulcerative colitis. Researchers will use health records from the Department of Defense to track rates of cancer, serious infections, and other …

This study looks at why some people who had surgery for colorectal cancer develop lasting bowel issues like urgency or leakage. Researchers will compare 145 participants with and without these problems using advanced tests. The goal is to identify different types of bowel dysfunc…

This study is testing whether an artificial intelligence system called GI Genius can help doctors find more polyps during colonoscopy. Polyps are growths that can sometimes turn into cancer. The study will include about 764 adults having a colonoscopy at a hospital in Singapore. …

This study looks at whether a simple blood test can find tiny bits of cancer DNA left after surgery for stage III colorectal cancer. The goal is to see if this test can help doctors decide who really needs extra chemotherapy and who can skip it. About 590 people will give blood s…

This study is gathering blood and tumor samples from 1,200 people with colorectal cancer who are having surgery to remove their cancer. Researchers want to look for biomarkers that might help predict how well patients do after surgery. The study does not test a new treatment, but…

This study is tracking 1,400 people with colorectal cancer to see how the disease behaves differently based on age and sex. Researchers are looking at survival rates and whether the cancer comes back, focusing on molecular profiles and sex hormone receptors. The goal is to better…

This study aims to identify biological markers that can predict how patients with inflammatory bowel disease (IBD) will respond to a type of medication called TNF-alpha inhibitors. Researchers will collect blood and tissue samples from 100 adults, including healthy controls and I…

This international study aims to understand why colorectal cancer is becoming more common in people under 50. Researchers will compare the diet, lifestyle, and medical history of 2,300 participants—half with early-onset colorectal cancer and half healthy volunteers. The goal is t…

This study collects tissue, blood, and stool samples from 200 children with inflammatory bowel disease (IBD) or other gut disorders. Researchers will use a cutting-edge technique called spatial transcriptomics to map gene activity directly inside gut tissue. The goal is to better…

This study is testing whether a blood test measuring a protein called LRG can tell if the gut lining has healed in people with ulcerative colitis. Researchers will compare blood LRG levels with colonoscopy and tissue samples in 100 patients. If the blood test works, it could offe…

This study looks at whether cleaning the bowel before surgery for colon cancer reduces the chance of infection after the operation. About 74 patients will be randomly assigned to either receive or skip the bowel prep. The main goal is to see if there is a difference in surgical s…

This study tests whether using a patient's existing CT scan to guide the colonoscope can make the procedure faster, less painful, and easier for doctors. About 200 adults getting a colonoscopy will be randomly assigned to standard or CT-assisted insertion. The goal is to see if t…

This study looks back at medical records of 1000 adults who had emergency appendix removal using either robotic assistance or standard laparoscopic surgery. The goal is to compare things like surgery time, complications, and recovery. No new treatment is being tested—just gatheri…

This study looks at whether a special nutritional supplement (HMB and vitamin D) combined with a structured exercise program can improve muscle strength and recovery in adults after colon cancer surgery. About 120 participants will be randomly assigned to different combinations o…

This study watches over 1000 adults having laparoscopic appendix removal to see if washing the belly with fluid (lavage) reduces the chance of internal infections. Doctors will note how dirty the belly is and decide on washing based on a new classification system. The goal is to …

This study follows 450 adults who have early signs of inflammatory bowel disease (Crohn's or ulcerative colitis) found during routine colon cancer screening, but who have no symptoms yet. Researchers will collect blood, stool, and tissue samples over time to see how the disease p…

This study is creating and testing a mobile health app designed to help colorectal cancer survivors and their family caregivers follow healthy lifestyle recommendations. Researchers will work with 70 participants to see if the app is easy to use and acceptable. The goal is to imp…

This study looks at whether people with ulcerative colitis (UC) who are in deep remission (no signs of inflammation) can safely reduce or stop their medication. Researchers will compare two groups: those who continue their current therapy and those who decrease or stop it. The go…

This study looks at how the bacteria and diet of pregnant women with inflammatory bowel disease (IBD) may influence gut inflammation in their babies. Researchers will collect samples from 80 mothers and infants over a year to track gut microbes and diet. The goal is to find patte…

This study tracks 200 adults with suspected appendicitis to see if combining CT scans and the AIR scoring system can lower the rate of unnecessary appendix removal. Researchers will compare imaging and score results with final lab reports. No new treatments are being tested—just …

This study observes how doctors use a treat-to-target strategy for people with Crohn's disease or ulcerative colitis in routine care. Researchers will review medical records of 2000 adults over 24 months to see if adjusting treatment based on disease activity improves outcomes. N…

This study will analyze the genes of 25,000 adults who have cancer or are at risk for it. Researchers will use advanced testing to find genetic changes linked to cancer and track health records over time. The goal is to learn more about cancer biology and discover new ways to per…

This study is collecting stool and saliva samples from 2,500 people with colorectal cancer to look for patterns in bacteria and genetic material (microRNA). The goal is to improve how doctors diagnose and predict the course of the disease. Participants provide samples at key poin…

This study tracks how fecal microbiota transplantation (FMT) alters the gut microbiome in 20 adults with recurrent Clostridioides difficile infection. Researchers will analyze stool samples before and up to 90 days after FMT to see which bacteria take hold. The goal is to underst…

This study looks at how a common bowel-cleansing drink (PEG) used before colonoscopy changes the gut bacteria in people who have had their appendix removed. Researchers will compare these changes to those in people with an intact appendix. The goal is to understand if the appendi…

This study looks at whether adding a geriatrician (a doctor who specializes in care for older adults) to cancer treatment can improve outcomes for people aged 70 and older with gastrointestinal cancers like stomach, colon, or pancreatic cancer. Researchers will test if an online …

This study is creating a registry of 500 patients with eosinophilic gastrointestinal disorders (EGIDs), including eosinophilic esophagitis, gastroenteritis, and colitis. Researchers will collect questionnaires, endoscopy images, biopsy samples, and physical exam findings to learn…

This study looks at how gut bacteria change the energy use of immune cells in people with inflammatory bowel disease (IBD) and healthy adults. Researchers will give healthy volunteers a short course of antibiotics to alter their gut bacteria, then measure immune cell metabolism u…

This study looks at how the bacteria in your gut might cause stomach issues like diarrhea and colitis when you take certain cancer drugs called immune checkpoint inhibitors. Researchers will collect stool, blood, and tissue samples from 800 people with melanoma, lung cancer, or g…

This study is looking for better ways to predict who might develop or have a return of certain cancers, including breast, colon, ovarian, melanoma, and lung cancer. Researchers will collect blood samples from 850 participants to study genetic and other biological markers. The goa…

This study looks at how Y90 radioembolization, a radiation treatment for liver tumors that have spread from colorectal cancer, actually works inside the body. Researchers will collect small tissue samples (biopsies) from the liver after treatment to see how much tumor damage occu…

This study looks at whether measuring infliximab levels in saliva is as good as measuring it in blood for children with inflammatory bowel disease (IBD). Fifteen children starting infliximab will provide saliva and blood samples during routine visits. The goal is purely to gather…

This study reviews medical records of 500 adults who had cytoreductive surgery (with or without heated chemotherapy) for advanced abdominal cancers. The goal is to find out how often incisional hernias occur and what patient or surgical factors increase the risk. Researchers hope…

This Phase 2 trial is testing whether giving lidocaine or high-dose dexamethasone during colon cancer surgery can improve the body's immune response and help patients recover better. 100 adults scheduled for colon cancer surgery will be randomly assigned to receive one of the two…

This study collects tissue, blood, urine, and stool samples from 5000 people undergoing colonoscopy or endoscopy, including those with cancer, polyps, or inflammatory bowel disease, as well as healthy volunteers. The goal is to find new biomarkers that could improve early detecti…

This study follows 100 hospitalized patients with Clostridioides difficile infection to track how quickly the bacteria clears from the gut during and after standard antibiotic treatment. Researchers will also analyze gut bacteria and immune responses in stool samples to identify …

This study is testing whether a simple ultrasound can accurately measure muscle loss in people with inflammatory bowel disease (Crohn's or colitis). Currently, doctors use CT scans to check for muscle wasting, but CT involves radiation and is not always available. Researchers wil…

This study is testing a new device that uses small electric pulses to destroy colon polyps during a colonoscopy. Researchers want to see if it is safe and effective for removing polyps. Thirty adults with at least one polyp larger than 5mm in the lower colon will be enrolled. The…

This study follows 368 colorectal cancer survivors aged 25 to 65 to see how their quality of life changes 6, 12, and 24 months after treatment. Researchers will use questionnaires to measure physical, mental, and social well-being and look for late side effects linked to specific…

This study looks at whether tiny molecules in the blood, called microRNAs, can help predict how often and how severely cancer patients develop nerve damage from chemotherapy. Researchers will study 90 people receiving specific chemo drugs for lung or colon cancer. The goal is to …

This study is testing whether a blood test that looks for tumor DNA (ctDNA) can find cancer returning earlier than standard scans. About 100 people with different solid tumors will give blood samples after treatment. The goal is to see if early detection can lead to better treatm…

This study looks at how cancer and its treatments change a person's sense of taste and smell, and how that affects their eating and nutrition. Researchers will follow 306 people newly diagnosed with cancer of the mouth, throat, colon, or liver. They will use questionnaires, taste…

This study looks at how nutrition and body composition (like muscle and fat) impact the health of people with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. Researchers will follow 300 participants starting new medical treatments or having sur…

This study follows 945 women with Crohn's disease or ulcerative colitis to see how pregnancy affects their condition. Researchers will track disease flares during pregnancy, after childbirth, and during breastfeeding. The goal is to better understand the link between IBD and preg…

This study surveys 400 adults with inflammatory bowel disease (IBD) from two medical centers to understand how social factors like insurance, income, and support affect medication adherence and quality of life. Researchers focus on Hispanic and Black patients, who often have wors…

This study is testing whether two dietary supplements, Goodphyte IB Defense and Goodphyte Immunity, are acceptable and easy for adults with chronic diseases like IBD, hypertension, anemia, or multiple sclerosis to take. Researchers will also check if the supplements improve how w…

This study interviews 60 children aged 10-17 with inflammatory bowel disease (Crohn's or colitis) to learn what makes it easier or harder for them to be physically active. Participants fill out two questionnaires and talk one-on-one with a researcher. No treatment or exercise pro…

This study watches 200 adults with C. diff infection to see how standard antibiotics and fecal microbiota transplantation (FMT) help people recover. Researchers will collect stool, blood, and urine samples over up to 5 years to understand why some treatments succeed and others fa…

This study aims to find new markers in the blood that can detect an imbalance of gut bacteria linked to inflammatory bowel disease (IBD). Researchers will compare 60 people with IBD and 60 people without IBD by collecting stool, blood, and tissue samples. The goal is to develop a…

This study is testing whether a special 3D ultrasound technique can help doctors better monitor how liver tumors respond to treatment. About 80 adults with liver cancer that started in the colon or rectum will be scanned before and during therapy. The goal is to see if this imagi…

This study explores how the bacteria in your gut and what you eat can influence chemotherapy-related diarrhea in colon cancer patients. Researchers will analyze stool samples and diet surveys from about 11 people receiving FOLFOX treatment. The goal is to create a tool that predi…

This study aims to create a standardized quality system for confocal enteroscopy, a technique that lets doctors see cells in real time during a small bowel exam. Researchers will enroll 600 people aged 18-70 who need small bowel endoscopy, along with certified gastroenterologists…

This study aims to find the genetic causes of certain blood cancers like lymphoma, leukemia, and multiple myeloma by studying families where more than one person has the disease. Researchers will collect DNA and blood samples from up to 500 participants, including patients and th…

This study looks at 40 newborns with isolated rectal bleeding to see how many have a cow's milk protein allergy versus a temporary condition called transient neonatal colitis. By removing and then reintroducing cow's milk from the diet, doctors can confirm an allergy if bleeding …

This early study tests whether a non-invasive sound wave procedure called histotripsy can stir up the immune system in people with colorectal cancer that has spread to the liver. Researchers will take blood samples before and after treatment to see if T-cells become more active. …

This study is a national registry that will follow up to 4,000 people who receive a fecal microbiota transplant (FMT) for C. diff infection or other gut conditions. Researchers will track side effects, infections, and whether the disease comes back. The goal is to better understa…

This research study collects health information from 10,000 people with brain inflammation conditions like Long COVID, ME/CFS, and autoimmune diseases. Participants use a smartphone app to share symptoms, health history, and wearable data. The goal is to find disease subtypes and…

This study from Aarhus University is looking at how common magnesium deficiency is in people with Crohn's disease, ulcerative colitis, ileostomy, or bile acid diarrhea. Magnesium is important for muscles, nerves, and heart health, but standard blood tests may miss a deficiency. T…

This study explores whether ultrasound and elastography can detect fibrosis (scarring) in the gut of people with ulcerative colitis. Researchers will compare ultrasound images with tissue samples from biopsies to find new biomarkers. The goal is to develop a non-invasive method t…

This study is for people with colorectal cancer that has spread to the liver and cannot be removed by surgery. Researchers want to learn how the body responds to a treatment called SIRT, which delivers tiny radioactive beads to the liver. They will collect blood and tissue sample…

This study is following 2000 adults with functional digestive disorders like irritable bowel syndrome, dyspepsia, and constipation. Researchers will collect medical data and biological samples (biopsies, blood, urine, stool) during routine care. The goal is to find markers that c…

This study is a large registry that will follow 10,000 people with inflammatory bowel disease (IBD) in Germany over many years. Its goal is to collect real-world information on how well treatments work, how the disease changes over time, and how it affects patients' daily lives. …

This study explores how traditional Chinese medicine tools, such as tongue and pulse diagnosis, can help identify unique features of inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. Researchers will compare 30 people with IBD to 30 healthy volun…

This study looks at how sleep problems affect people with ulcerative colitis, a type of inflammatory bowel disease. Researchers will study 152 participants to see how sleep quality relates to gut bacteria, nerve function, and disease activity. The goal is to understand the connec…

This study looks at gut bacteria in 300 people with colorectal cancer to see if certain bacteria are linked to cancer spread. Researchers will compare stool and tissue samples from patients whose cancer has spread versus those whose cancer has not. The goal is to find bacterial p…

This early-phase trial is testing two new antibody fragments that are designed to attach to a sugar molecule found on many solid tumors. The fragments are labeled with a radioactive tracer so they can be seen on PET/CT scans. The study aims to see where these fragments go in the …

This observational study is looking for new substances in the blood that could signal colorectal cancer (CRC) or pre-cancerous growths. Researchers will compare blood samples from 60 people: those with CRC, those with a pre-cancerous polyp, and healthy individuals. The goal is to…