Colonic disorder

This study tests a vaccine that helps the body's immune system recognize and attack advanced colon polyps, which can turn into cancer. About 110 people who have had these polyps removed will receive either the vaccine or a placebo. The goal is to see if the vaccine boosts immune …

This study tests new versions of a vaccine to prevent severe diarrhea caused by the C. diff germ. Healthy adults aged 50 and older who have never had a C. diff infection will receive either a new vaccine formula, a previously studied formula, or a placebo. The goal is to see whic…

Researchers compare two ways to remove large, non-cancerous growths from the colon. One method, endoscopic mucosal resection, removes the growth in pieces. The other, endoscopic submucosal dissection, removes it in one piece but takes longer and carries more risk. The trial tests…

Researchers compare two biologic drugs, ustekinumab and infliximab, in adults with moderate to severe ulcerative colitis who have not previously tried biologic therapy. The trial measures how well each drug reduces inflammation, controls symptoms, and improves quality of life, wh…

This study tests a new drug called ARV-806 in adults with advanced solid tumors that have a specific KRAS G12D mutation. The drug aims to break down the mutated protein that helps tumors grow. The trial has two parts: first, finding a safe dose in small groups, then testing that …

This study looks at the long-term safety and effectiveness of balinatunfib, an oral tablet, in adults with Crohn's disease or ulcerative colitis. Participants have already completed a one-year treatment in a previous study. The trial will last up to 107 weeks and includes both do…

Researchers are testing whether a blood test that detects tiny amounts of tumor DNA can guide chemotherapy after surgery for early colon cancer. The trial compares two chemotherapy regimens: an intensive one called FOLFOXIRI and a standard one called CAPOX. They want to see if th…

This study is testing three long-acting antibodies, alone or in combination, in 645 people with ulcerative colitis. The goal is to see if they are safe and can improve bowel inflammation over 48 weeks. Participants are joining from a previous study and may have already seen some …

This Phase 3 trial tests whether the drug Afimkibart can help people with moderate-to-severe ulcerative colitis achieve remission. About 400 adults who have not responded well to other treatments will receive either Afimkibart or a placebo. The study measures remission at 12 and …

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 II trial tests whether combining two drugs, atezolizumab and bevacizumab, can shrink rare solid tumors like appendix cancer, anal cancer, and mesothelioma. About 133 participants with various rare cancers will receive the drugs intravenously. The goal is to see if the …

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 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 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 tests whether giving immunotherapy before surgery can help people with MSI/dMMR tumors. The goal is to shrink or eliminate the tumor before it is removed, potentially improving survival. The trial includes adults with localized, resectable cancers such as colorectal, g…

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 early-phase trial is testing a combination of two drugs—trastuzumab deruxtecan (a targeted chemotherapy) and ceralasertib (a drug that may block cancer cell repair)—in people with advanced solid tumors that have a HER2 mutation. The study has two parts: first, finding the sa…

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 early-phase trial is testing a combination of chemotherapy (FOLFOX), an anti-angiogenic drug (bevacizumab), and two immunotherapies (botensilimab and balstilimab) in 20 patients with MSS metastatic colorectal cancer, a type that usually doesn't respond to immunotherapy. The …

This study tests guselkumab, a drug that targets inflammation, in over 1,000 people with moderate to severe ulcerative colitis. Participants receive either guselkumab or a placebo to see if the drug can improve symptoms and lead to remission. The goal is to find a new treatment o…

This study tests a combination of three drugs—bintrafusp alfa, PDS01ADC, and entinostat—in adults with advanced HPV-related cancers (like cervical, anal, or throat cancer) or certain colon cancers that haven't responded to standard treatment. The goal is to find a safe dose and s…

This study compares the real-world effectiveness of mirikizumab against standard biologic therapies for adults with ulcerative colitis or Crohn's disease. Researchers will track whether mirikizumab reduces the need for extra medical care, like emergency visits or treatment change…

This study tests a drug called golimumab in children aged 2-17 with moderate-to-severe ulcerative colitis, a chronic bowel disease causing inflammation and symptoms like diarrhea and bleeding. The goal is to see if the drug can bring about remission (symptom relief) within 6 week…

This study tests an experimental vaccine (RO7198457) in people with stage II or III colorectal cancer who have signs of remaining cancer DNA in their blood after surgery. The goal is to see if the vaccine can prevent the cancer from returning better than simply watching and waiti…

This study tests an injected drug called guselkumab for people with moderate-to-severe ulcerative colitis, a chronic bowel disease causing inflammation and symptoms like diarrhea and bleeding. About 418 adults who haven't responded well to other treatments will receive either the…

This study follows 159 children aged 2 to 17 who have already completed a prior ustekinumab study for Crohn's disease, ulcerative colitis, or psoriatic arthritis. The goal is to collect long-term safety data by monitoring side effects, lab results, and injection-site reactions. P…

This study tests whether combining two biologic drugs, guselkumab and golimumab, works better than either drug alone for people with moderate to severe ulcerative colitis. About 577 participants who haven't responded well to other advanced therapies will receive injections of the…

This study tests a drug called guselkumab in children aged 2-17 with moderate to severe ulcerative colitis, a condition causing inflammation in the colon. The goal is to see if the drug can bring the disease under control and keep it in remission for up to 56 weeks. About 112 chi…

This early-stage trial tests the safety of an experimental drug called LYNC-101 in 50 healthy adults. The drug is given by IV infusion, either as a single dose or multiple doses every 3 weeks. The goal is to see if it is safe and how the body processes it, before testing it in pe…

This early-stage trial is testing a new drug called GSK4528287 for the first time in humans. The goal is to check for side effects and see how the drug behaves in the body. 48 healthy volunteers will receive a single dose, with the amount increased gradually in different groups. …

This trial asks whether a supplement made from brown algae, called fucoidan, can improve gut health in people with mild to moderate ulcerative colitis. Participants will take fucoidan or a placebo alongside their usual medication for 12 weeks. Researchers will measure changes in …

This phase 2 trial tests Aquamin, a mineral supplement made from red marine algae, in 40 people with mild ulcerative colitis or those in remission. Researchers want to see if it improves symptoms, reduces inflammation, and helps maintain remission. Participants take 4 capsules da…

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 early-phase trial tests whether adding the CIMAvax-EGF vaccine to standard chemotherapy and targeted drugs can trigger an immune response against metastatic colorectal cancer. Only 2 participants with a specific gene type (RAS/BRAF wild-type) were enrolled. The main goal is …

This study tests a digital health system that reminds people with inflammatory bowel disease (IBD) to take their medication and lets them report symptoms. About 123 adults starting a new oral or injectable treatment will use the system or get standard care for 12 months. The goal…

This trial tests whether a prebiotic supplement can ease symptoms in people with mild ulcerative colitis, a chronic inflammatory bowel disease. Participants will take either the prebiotic or a placebo for eight weeks. The study aims to see if certain gut bacteria patterns can pre…

This study tests an oral drug called TAK-279 (Zasocitinib) in 207 adults with moderate-to-severe ulcerative colitis. Participants take either the drug or a placebo for 12 weeks, then everyone gets the drug for up to a year. The goal is to see if TAK-279 reduces bowel inflammation…

This early-phase trial is testing whether adding a new targeted drug called adagrasib to two existing cancer drugs (cetuximab and irinotecan) is safe and tolerable for people with advanced colorectal cancer that has a specific genetic change called KRAS G12C. The study will enrol…

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 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 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 tests whether adding new cancer drugs to standard chemotherapy and bevacizumab can better control metastatic microsatellite-stable colorectal cancer. About 61 adults with this advanced cancer will receive different treatment combinations. The goal is to find safer, mor…

This trial asks whether a newer, simpler technique called cold snare polypectomy (CSP) causes less damage to blood vessels under colon polyps than the traditional hot snare method. It involves adults with non-cancerous colon polyps sized 10-19 mm. The study compares the presence …

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 study tests two different doses of TEV-48574 (duvakitug) given as a shot every 4 weeks to adults with moderate to severe ulcerative colitis or Crohn's disease. Participants who completed a previous 14-week study can join. The goal is to see if the drug can keep the disease u…

This study is testing a minimally invasive weight loss procedure called endoscopic sleeve gastroplasty (ESG) in 12 people who have both obesity and ulcerative colitis and are planning or have had colon removal surgery. The procedure uses a suturing device to reduce stomach size b…

This phase 3 trial is testing whether adding the immunotherapy drug atezolizumab to standard chemotherapy can help prevent cancer from coming back in people with stage III colon cancer that has a specific DNA repair defect (dMMR). About 712 participants will receive either chemo …

This study compares two approved drugs, risankizumab and vedolizumab, in about 530 adults with moderate to severe ulcerative colitis who have not tried targeted therapies before. Participants will receive one of the two drugs for about a year. The main goal is to see which drug b…

This study tests an oral medication called tofacitinib in children aged 2 to 17 with moderate to severe ulcerative colitis, a chronic bowel disease causing inflammation and bleeding. The goal is to see if the drug can bring the disease into remission (no symptoms and healed gut l…

This study tests whether adding two targeted drugs (encorafenib and cetuximab) to standard immunotherapy (pembrolizumab) works better than immunotherapy alone for people with a specific genetic type of advanced colorectal cancer. About 107 participants with untreated, metastatic …

This study tests a drug called adagrasib (MRTX849) in people with advanced solid tumors that have a specific genetic mutation called KRAS G12C. The goal is to see if the drug is safe, how the body processes it, and whether it can shrink tumors. About 731 participants with various…

This early-phase trial is testing a vaccine that targets mutated KRAS proteins, combined with two immunotherapy drugs (nivolumab and ipilimumab), in 27 patients with pancreatic or colorectal cancer that has been surgically removed. The goal is to see if the vaccine can safely boo…

This phase 3 trial tests whether a new targeted drug (MRTX849) combined with cetuximab works better than standard chemotherapy for people with advanced colorectal cancer that has a specific KRAS G12C mutation. About 461 participants whose cancer worsened after first-line treatmen…

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 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 early-stage study tests an oral drug called LY3410738 in people with advanced solid tumors (like bile duct cancer, cartilage cancer, or brain tumors) that have specific IDH1 or IDH2 mutations. The main goal is to find a safe dose and see if the drug can shrink tumors. About …

This Phase 2 trial is testing whether linaclotide, a drug currently used for constipation, can slow or prevent colorectal cancer growth. About 150 people with colorectal polyps or early-stage cancer will take the drug or a placebo before surgery. Researchers will measure changes …

This trial tests an experimental drug called ST316, alone or with other cancer drugs, in people with advanced solid tumors that have not responded to standard treatments. The study focuses on tumors that may have abnormalities in a cell signaling pathway called WNT/β-catenin. The…

This trial tests whether giving the immunotherapy drug camrelizumab before surgery can help completely remove T4 colon cancers that have a specific genetic feature (dMMR). These cancers often don't respond well to standard chemotherapy. The study will enroll 18 adults who will re…

This study tests a new drug, SX-682, alone and with the immunotherapy nivolumab, in people with a specific type of advanced colorectal cancer that has spread or cannot be removed. The cancer must have a RAS mutation and be microsatellite stable (MSS), which often makes it harder …

This early-stage trial is testing a new oral drug called LY4066434, which blocks several types of KRAS proteins that drive cancer growth. The study includes up to 750 people with advanced pancreatic, lung, colorectal, or other solid tumors that have specific KRAS mutations. The d…

This study tests whether an experimental drug called D-2570 can help people with moderately to severely active ulcerative colitis achieve remission. About 120 adults will receive either D-2570 or a placebo daily for 12 weeks. The main goal is to see if more people on D-2570 reach…

This study tests whether transplanting a person's own fecal bacteria into the bowel before ileostomy reversal can improve bowel and anal function after rectal cancer surgery. Participants receive four weekly enemas made from their own stool. The goal is to reduce symptoms like le…

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 compares two medications, infliximab and vedolizumab, to treat colitis (colon inflammation) caused by immune checkpoint inhibitor therapy in cancer patients. About 47 adults with genitourinary cancer, melanoma, or non-small cell lung cancer are participating. The goal …

This trial compares changing the dressing on a PICC line (a type of central catheter) every week versus every two weeks in people with colon or pancreas cancer receiving chemotherapy. The goal is to see if less frequent changes are just as safe, with no increase in skin injuries,…

This phase 1 trial tests a new method of delivering chemotherapy for people with cancers that have spread to the lining of the abdomen (peritoneal carcinomatosis) from gastrointestinal cancers like colorectal, stomach, or pancreatic cancer. The drug, nanoliposomal irinotecan (Oni…

This early-phase trial tests an experimental immunotherapy called ELI-002 7P in people with pancreatic or other solid tumors that have specific KRAS or NRAS gene mutations. The treatment aims to train the immune system to attack cancer cells. About 158 participants will receive t…

This study looks at the long-term safety and effectiveness of the drug etrasimod for people with moderate to severe ulcerative colitis. Participants had already taken part in earlier studies and will continue taking etrasimod for up to 2 years. The goal is to see if the drug can …

This phase 2 trial tests whether a modified virus (VV1) combined with the immunotherapy drug cemiplimab can shrink tumors in people with colorectal cancer, head and neck squamous cell carcinoma, or melanoma that has stopped responding to checkpoint inhibitor treatment. The virus …

This phase II trial tests whether adding the immunotherapy drug nivolumab to the standard two-drug regimen (encorafenib and cetuximab) works better at shrinking tumors in people with a specific type of advanced colorectal cancer (BRAF-mutant, microsatellite stable). About 86 part…

This phase 3 trial tests whether a daily pill called ABX464 (obefazimod) can help people with moderate-to-severe ulcerative colitis stay in remission. Over 1,100 participants who completed an earlier induction study will receive either 25 mg, 50 mg, or a placebo for 44 weeks. The…

This study tests whether adding two targeted drugs (encorafenib and cetuximab) after standard surgery and chemotherapy can lower the chance of cancer coming back in people with a specific genetic type of stage II/III colon cancer (BRAF V600E). Participants either receive the drug…

This study tests a daily medication called filgotinib (200 mg) in about 94 Korean adults with moderate-to-severe ulcerative colitis. The main goal is to see if it can bring the disease into remission (no active symptoms) by week 10 or 22. Participants take the pill once daily and…

This study tests a combination of two drugs, neratinib and valproate, in people with advanced solid tumors that have not responded to standard treatments. The first part finds the safest dose, and the second part focuses on cancers with a RAS mutation, like certain colon and panc…

This study tests whether dupilumab can help people with moderate to severe ulcerative colitis that has a certain type of immune cell activity (eosinophilic phenotype). About 68 adults will receive either dupilumab or a placebo for 52 weeks. The main goal is to see if symptoms and…

This phase 2 trial is testing a combination of three drugs—ATRA (a vitamin A derivative), bevacizumab (a blood vessel growth blocker), and atezolizumab (an immunotherapy)—in 22 people with advanced colorectal cancer that has not responded to prior treatments. The goal is to see i…

This phase 2 trial is testing a combination of two immunotherapy drugs, nivolumab and ipilimumab, in 798 people with over 50 types of rare cancers. The goal is to see if these drugs can shrink tumors by helping the immune system attack cancer cells. Participants receive the drugs…

This study tests whether giving vedolizumab every 4 weeks instead of every 8 weeks can help Japanese patients with moderate to severe ulcerative colitis or Crohn's disease whose symptoms returned during standard treatment. About 56 participants will receive the drug intravenously…

This study tests whether infliximab, a drug used for inflammatory conditions, can treat colitis (colon inflammation) caused by immune checkpoint inhibitors in people with stage III or IV skin cancer. About 42 participants will receive either infliximab or steroids, and researcher…

This phase 3 trial tests whether taking a low-dose aspirin (100 mg) daily for three years can prevent colon cancer from coming back after surgery. It includes 264 people with stage II or III colon cancer who have a specific mutation in the PI3K gene. Participants are randomly ass…

This study tests whether a combination of two targeted drugs (encorafenib and cetuximab), given alone or with chemotherapy, works better than standard chemotherapy for people with a specific genetic form of advanced colorectal cancer (BRAF V600E mutation) that has spread and hasn…

This study tests a combination of two targeted drugs (encorafenib and cetuximab) plus an immunotherapy (nivolumab) in people with a specific type of advanced colorectal cancer (BRAF V600E mutation) that is stable (MSS) and has spread or can't be removed by surgery. The goal is to…

This study tests a combination of three drugs (cetuximab, LY3214996, and abemaciclib) in people with advanced colorectal cancer that has spread and no longer responds to standard therapy. The goal is to see if the combination can shrink tumors and improve survival. About 46 adult…

This study looks at whether taking a common ulcerative colitis medication (5-ASA) at a specific time of day—morning or evening—can better reduce hidden inflammation. Thirty-two adults with inactive UC will try both timing schedules over three months. Researchers will measure infl…

This study tests a new medicine called SHR-1139 in 21 adults with moderate-to-severe ulcerative colitis, a condition that causes inflammation in the colon. The treatment has two parts: 12 weeks of induction therapy followed by 48 weeks of maintenance therapy. The main goal is to …

This study looks at how well a new robotic surgical system works for removing colon or rectal tumors. About 60 adults who need surgery for benign or malignant colorectal conditions will take part. The goal is to see if the system is safe and can complete the surgery without switc…

This phase II trial tests whether delivering chemotherapy directly into the liver (hepatic arterial infusion) along with standard IV chemo can shrink inoperable liver tumors from colorectal cancer enough to allow surgical removal. The study involves 64 participants whose cancer h…

This study tests four different tools—coaching, education, text messages, and health coaching—to help cancer survivors improve their diet, physical activity, and weight. About 350 adults who have completed treatment for several cancer types will use these tools for up to 48 weeks…

This study tests whether vedolizumab, given as an IV infusion, can help Chinese adults with moderate to severe ulcerative colitis. About 392 participants will receive either the drug or a placebo. The goal is to see if it reduces symptoms like diarrhea and bleeding, and helps ach…

This study looks at whether giving chemotherapy both before and after surgery (perioperative) is better than only after surgery for people with advanced colon cancer. About 738 participants will be randomly assigned to one of two groups. The goal is to see if the perioperative ap…

This early-phase study tests a new drug called RMC-6291 in adults with advanced cancers (lung, colon, pancreatic) that have a specific KRAS G12C mutation. The goal is to find the safest dose and see how well the drug works. About 222 participants will receive the drug by mouth, a…

This study tests an oral medication called upadacitinib in children aged 2 to 17 with moderate-to-severe ulcerative colitis who have not improved with standard treatments. The goal is to see if the drug can reduce inflammation and control symptoms like diarrhea and bleeding. Part…

This phase II trial is testing whether the drug cemiplimab can control a specific type of colon cancer (dMMR) without needing surgery. About 50 adults with this cancer type will receive the drug through an IV. The main goal is to see if it is safe and effective enough to avoid an…

This Phase 2a trial is testing an injectable biologic drug called ALTB-268 in 50 adults with moderately to severely active ulcerative colitis that has not improved with other biologic therapies. The study is open-label, meaning everyone receives the drug, and will measure changes…

This study looks at whether using just one medication (infliximab) under the skin works as well as using it together with another immune-suppressing drug for people with Crohn's disease or ulcerative colitis. About 420 adults who have already started infliximab will be followed f…

This early-stage trial tests a new drug called ALTB-268, a monoclonal antibody, in 24 healthy volunteers. The main goal is to check safety and how the body processes the drug. If it passes safety checks, it may later be tested in people with ulcerative colitis to see if it can co…

This study tests whether a bioelectric wound dressing can reduce infections after colon surgery better than the usual antiseptic skin prep. About 20 adults having elective colon surgery will be enrolled. Researchers will measure bacteria levels in skin samples to compare the two …

This study tests the long-term safety and effectiveness of an experimental drug called ABX464 in people with moderate to severe ulcerative colitis. Participants who previously improved on ABX464 in earlier studies will continue taking it daily for up to 54 months. Researchers wil…

This study tests whether adding high-dose vitamin D3 to standard anti-TNF therapy can improve symptoms and reduce inflammation in people with active Crohn's disease or ulcerative colitis. About 100 adults starting anti-TNF treatment will receive either vitamin D3 or a placebo for…

This Phase 2 trial tests an oral drug called SAR443122 in 187 adults with moderate to severe ulcerative colitis who haven't responded well to other treatments. Participants receive either the drug or a placebo for up to 52 weeks. The goal is to see if the drug can safely help ach…

This study tests a support program for teens aged 16-17.5 with Crohn's disease or ulcerative colitis as they move from pediatric to adult healthcare. The program includes personalized assessments, a transition navigator, and virtual skill-building sessions. Researchers will measu…

This study looks at whether the probiotic VSL#3 can change how bile acids work in people with Crohn's disease or ulcerative colitis. About 79 participants will take two sachets of VSL#3 daily for six weeks. Researchers will measure bile acid levels in blood and stool to see if th…

This study looks at how well and how safely the drug mirikizumab works over the long term (up to 3 years) for people with moderate to severe ulcerative colitis. About 1,058 adults who were already in earlier studies will continue treatment. The goal is to see if the drug can keep…

This study aimed to test whether injecting stem cells from a donor's bone marrow into the pouch (a surgically created internal reservoir) could safely treat pouchitis that hadn't improved with antibiotics or other drugs. The trial was planned for 12 adults aged 18-75 in the U.S.,…

This study tests whether a fecal transplant (FMT) can safely and effectively treat recurrent C. difficile infections in children, including those with inflammatory bowel disease (IBD). Researchers will give FMT to 250 children aged 3-21 and track whether the infection comes back.…

This study tests an oral drug called selpercatinib in people with advanced solid tumors that have RET gene alterations, including certain lung, thyroid, and colon cancers. The goal is to find the best dose and see if the drug can shrink tumors. About 857 participants are enrolled…

This early-phase study tests whether adding Akkermansia probiotics to standard immunotherapy and chemotherapy can safely help patients with advanced colorectal cancer that hasn't responded to prior treatments. The trial enrolls 22 adults whose tumors are MSS/pMMR type, which typi…

This study tests an experimental drug called emvistegrast (GS-1427) in about 228 adults with moderate to severe ulcerative colitis. Participants receive either the drug or a placebo, and researchers check if symptoms improve after 12 weeks. The goal is to see if the drug can redu…

This study tests a new drug called Hemay005 for people with moderate to severe ulcerative colitis, a chronic gut condition. About 92 participants will receive either a low dose, high dose, or a placebo for 12 weeks. The goal is to see if the drug can reduce symptoms like diarrhea…

This phase 2 trial is testing a combination of two drugs, cabozantinib and nivolumab, in 48 people with advanced colorectal cancer that has not responded to standard treatments. The goal is to see if the combination can shrink or stabilize tumors. All participants have a type of …

This study tests whether giving a probiotic called Lactobacillus plantarum after surgery for a burst appendix can reduce inflammation, pain, and hospital stay. Researchers will measure white blood cell counts and pain levels in 50 adults. The goal is to see if probiotics help con…

This early-phase trial tests whether using MRI scans during radiation treatment can help doctors adjust the radiation dose to better target rectal cancer. Twenty people with stage II or III rectal cancer will receive standard chemotherapy plus MRI-guided radiation. The main goal …

This study is observing 300 adults with metastatic colorectal cancer who are receiving a combination of two drugs (fluoropyrimidine and bevacizumab). The goal is to measure how long patients live and how long the cancer stays under control. The study is not testing a new treatmen…

This study tests whether giving chemotherapy before and after surgery (plus heated chemo directly into the abdomen) helps people with colorectal cancer that has spread to the lining of the abdomen live longer. About 358 adults with resectable disease are randomly assigned to eith…

This study tests an oral enzyme called SYN-004 in adults who have received a stem cell transplant and need intravenous antibiotics for fever. The enzyme is designed to break down antibiotics in the gut, protecting the natural bacteria there. Researchers will check safety, whether…

This study tests a new drug (JAB-21822) combined with cetuximab in people with advanced colorectal, small intestine, or appendiceal cancers that have a specific KRAS G12C mutation. Participants must have already tried at least one standard treatment. The goal is to see if the com…

This phase 3 trial tests a drug called tulisokibart (MK-7240) in about 1,020 people with moderate-to-severe ulcerative colitis. The drug is a lab-made antibody given by IV or injection. The goal is to see if it can help people achieve and maintain remission (fewer symptoms and le…

This study tests whether using a computer dashboard to guide infliximab dosing is more effective and safer than standard dosing for people with Crohn's disease or ulcerative colitis. About 124 participants will receive either dashboard-guided or standard treatment, with the goal …

This study looks at whether a 6-month exercise program (a mix of aerobic and resistance training) can improve fitness and reduce the risk of cancer coming back in patients who had surgery for colorectal cancer that spread to the liver. About 66 participants will be split into thr…

This study tests a new way for cancer doctors and primary care doctors to work together to help cancer survivors manage other health problems like high blood pressure, diabetes, and high cholesterol. About 800 adults with certain cancers and at least one of these conditions will …

This study looks at whether starting chemotherapy 10 to 14 days after surgery for stage III colon cancer is better than waiting the usual 2 weeks or more. About 300 patients are taking part to see if earlier treatment improves survival and lowers the chance of cancer coming back.…

This study tests whether giving chemotherapy before surgery (instead of after) helps people with locally advanced colon cancer live longer without the cancer returning. About 708 adults aged 18 to 70 with non-spreading colon cancer are taking part. The goal is to see if early che…

This study compares two ways of giving chemotherapy directly into the belly after surgery to remove visible cancer from the lining of the abdomen. The cancer comes from the appendix, colon, or rectum. About 292 adults will be randomly assigned to receive either early post-operati…

This study planned to test whether a living donor liver transplant, after standard chemotherapy, could help people with colorectal cancer that spread to the liver and could not be surgically removed. It aimed to enroll 25 donor-recipient pairs. However, the study was withdrawn be…

This study tests whether using a blood test for circulating tumor DNA (ctDNA) can help doctors decide if patients with stage II or III colon cancer need stronger chemotherapy after surgery. The trial compares standard chemo with a more intense regimen (FOLFOXIRI) and an additiona…

This early-phase study tests an experimental oral drug (GSK4418959) in adults with advanced solid tumors that have specific genetic changes (dMMR or MSI-H). The drug works by blocking a protein (WRN) that these tumors need to survive. The study aims to see if the drug, alone or w…

This study compares two types of robotic surgery for high rectal and sigmoid colon cancer: one that removes the tumor through the anus (NOSES-IV) and the traditional method. The goal is to see which approach leads to fewer complications, less pain, and a shorter hospital stay. Ab…

This phase 1 trial tests a vaccine (p53MVA) that trains the immune system to attack cancer cells with a p53 mutation, given together with the immunotherapy drug pembrolizumab (Keytruda). The study includes 11 people with advanced solid tumors like lung, head and neck, liver, kidn…

This pilot study tests whether a plant-based resistant starch, tailored to each child's gut bacteria, can improve gut health in 80 children with Crohn's disease or ulcerative colitis. Participants will take the starch or a placebo for a period, and researchers will measure change…

This study looks at whether using an antibiotic solution to wash the surgical area during laparoscopic appendix removal can lower the chance of wound infections in children with a burst appendix. About 200 children aged 18 or younger will take part. The goal is to find a better w…

This study tests whether a plant-based starch, tailored to each child's needs, can help restore a healthier gut microbiome in children with inflammatory bowel disease (Crohn's or colitis). About 100 children with mild disease or in remission will receive the starch for 6 months. …

This early-stage study tests whether delivering a patient's own stem cells directly into the artery that supplies the colon is safe for people with moderate to severe ulcerative colitis. Twenty adults who have not responded to at least two standard treatments will receive one dos…

This phase 3 study tests whether risankizumab, an injected drug, can safely maintain remission in people with ulcerative colitis who already improved with the same drug. Over 1,200 participants will receive either risankizumab or a placebo for 52 weeks, with an option to continue…

This study tests whether transplanting healthy donor stool into the gut can help people with ulcerative colitis, a chronic bowel disease. About 150 adults with active or steroid-dependent disease will receive either real fecal transplants or a sham procedure. The goal is to see i…

This study was designed to test whether the drug etrasimod (VELSIPITY) could help reduce the need for steroids in cancer patients who develop diarrhea and colon inflammation from immune checkpoint inhibitors. It planned to enroll about 0 participants with advanced cancer who had …

This study tests whether MitoQ, a supplement that protects cell batteries (mitochondria), can help people with moderate ulcerative colitis (UC) flare-ups. About 79 adults will take either MitoQ or a placebo daily for 24 weeks, alongside standard steroid treatment. The goal is to …

This study tests the long-term safety and effectiveness of upadacitinib (RINVOQ) in about 950 people with ulcerative colitis who didn't respond well to earlier treatment. Participants take the drug or a placebo orally. The goal is to see if it can control the disease over time wi…

This study tests a specially selected probiotic (LR607) in 300 people with mild-to-moderate ulcerative colitis, a form of inflammatory bowel disease. The probiotic is designed to boost a natural gut pathway (NOD2) that helps control inflammation. The goal is to see if adding LR60…

This study looks at whether a gluten-free diet can help people with primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD). Researchers will track changes in symptoms, gut bacteria, and lab results in 60 adults over time. The goal is to see if avoiding gluten c…

This study aimed to test whether MitoQ, a dietary supplement with antioxidant properties, could help control inflammation in children aged 6–17 with mild-to-moderate ulcerative colitis. Participants would have taken MitoQ or a placebo daily for 24 weeks alongside their usual medi…

This study tests an oral drug called selpercatinib (LOXO-292) in children with advanced solid or brain tumors that have a specific RET gene change. The trial has two parts: first finding a safe dose, then measuring how many children's tumors shrink. About 36 children whose cancer…

This early-stage trial is testing a new drug called KFA115, either by itself or combined with the immunotherapy Keytruda (pembrolizumab), in 126 people with advanced cancers like lung, skin, kidney, and others. The main goal is to check safety and find the best dose. It is not ye…

This study compares two methods for removing certain types of colon polyps (10-19mm adenomas or serrated lesions 10mm or larger) during a colonoscopy: cold snare piecemeal resection (CSPR) and cold snare endoscopic mucosal resection (Cold EMR). About 570 adults will take part to …

This study tests whether a daily postbiotic gummy can help restore healthy gut bacteria after surgery for colon or other gastrointestinal cancers. Thirty adults scheduled for surgery will be randomly assigned to receive either the postbiotic or a placebo gummy for two weeks after…

This study follows 509 adults with moderate to severe ulcerative colitis who are starting filgotinib, a drug also known as Jyseleca. Researchers want to see how long people stay on the treatment, how well it controls symptoms, and how it affects quality of life in everyday medica…

This study tests whether surgeons can safely remove less tissue during surgery for upper rectal cancer after patients have received pre-surgery therapy. About 874 adults with locally advanced rectal cancer will be randomly assigned to either standard or reduced surgical margins. …

This study tests three different doses of an experimental drug called MORF-057 in 280 adults with moderate to severe ulcerative colitis, a chronic inflammatory bowel disease. The goal is to see if the drug can safely help patients achieve remission, meaning less bleeding, more no…

This study tests whether adding hyperbaric oxygen therapy (breathing pure oxygen in a pressurized chamber) to standard steroid drugs helps people with severe ulcerative colitis get better faster. About 44 adults with acute severe colitis will be randomly assigned to receive eithe…

This study looks at whether adding CurQD, a mix of curcumin and QingDai, helps people with active ulcerative colitis who are already taking vedolizumab. Researchers will review records from 400 patients to see if the supplement helps them stay on vedolizumab longer and improves s…

This study tests a new drug called lutikizumab in about 156 adults with moderate to severe ulcerative colitis, a condition causing inflammation and bleeding in the colon. Participants receive either lutikizumab or adalimumab (Humira) for 12 weeks, then continue based on response.…

This study tests a new drug called rosnilimab in 132 adults with moderate to severe ulcerative colitis. The goal is to see if it can reduce disease activity and improve symptoms compared to a placebo. Participants must have tried other treatments without success. The trial is act…

This phase 2 trial is testing whether adding a liver-directed chemoembolization procedure to standard chemotherapy can better shrink tumors in people with colorectal cancer that has spread only to the liver and has a poor outlook. About 48 participants will receive either chemoth…

This study tests whether two special diets—the specific carbohydrate diet or an elemental (liquid) diet—can help people with active Crohn's disease or ulcerative colitis feel better. Forty adults will choose one diet and follow it for 6 weeks, while researchers track symptoms, in…

This phase 2 trial is testing whether adding the immunotherapy drug tislelizumab to standard chemotherapy (oxaliplatin and capecitabine) before surgery can help shrink tumors in people with a specific type of locally advanced colon cancer called microsatellite stable (MSS). About…

This early-stage trial is testing a new drug called HBI-2438 in people with advanced solid tumors (like lung, colorectal, or pancreatic cancer) that have a specific genetic change called KRAS G12C. The main goals are to find the safest dose and understand how the drug moves throu…

This early-stage trial tests a new oral drug called HBI-2376 in about 42 adults with advanced solid tumors (like lung, colon, or pancreatic cancer) that have KRAS or EGFR mutations and have stopped responding to standard treatments. The main goals are to find a safe dose and unde…

This early-phase study tests CP101, an oral capsule made from healthy donor stool, in 30 adults with mild-to-moderate ulcerative colitis. The goal is to see if the drug can safely restore a healthy gut microbiome and improve symptoms. Participants receive either a short or extend…

This study tests fecal microbiota transplantation (FMT) in 30 people with mild-to-moderate ulcerative colitis. Participants receive donor stool either through a colonoscopy or as capsules at weeks 0 and 4. The goal is to see if FMT can help achieve steroid-free remission and impr…

This study tests whether fecal microbiota transplant (FMT) capsules can help people with inflammatory bowel disease (IBD) who haven't improved on standard biologic drugs. 94 patients with mild-to-moderate Crohn's or ulcerative colitis will receive either FMT capsules plus a biolo…

This study tests whether a low-radiation CT scan, enhanced with artificial intelligence software, can detect liver tumors as accurately as a standard CT scan. About 146 adults with colorectal cancer and known liver metastases will receive both scans. The goal is to see if the low…

This study tests a new platform called xDRIVE that combines drug sensitivity testing and AI to predict which treatments will work best for people with advanced colorectal cancer. The platform will not provide treatment itself but will give doctors a recommendation. The goal is to…

This early-phase trial explores whether two experimental PET/CT tracers, 68Ga-FAPI-46 and 68Ga-PSMA-11, can accurately highlight various non-prostate cancers, including breast, lung, and pancreatic tumors. Participants scheduled for surgery will receive the tracers before their s…

This early-phase study tests how well a special PET-CT scan called FAZA can measure oxygen levels in solid tumors like breast, colorectal, and pancreatic cancers. About 25 participants will receive the FAZA tracer and undergo imaging to see if the results are consistent over time…

This study tests whether combining spectral CT scans with a genetic test (MSI) can more accurately predict if colorectal cancer has spread to nearby lymph nodes. Researchers will compare the imaging results with actual tissue samples from surgery or biopsy. The goal is to improve…

This study tests whether an artificial intelligence (AI) system can accurately identify the type of colon polyps during a colonoscopy, compared to standard visual inspection by the doctor. Over 1,700 adults having a colonoscopy will be randomly assigned to either AI-assisted or s…

This study tests a computer program that analyzes colonoscopy images to help doctors decide if a growth (polyp) is an adenoma (pre-cancerous) or not. The software gives a probability score for each lesion. The trial involves 1,178 adults and compares the software's results to lab…

This study checks if a new stool test can better tell the difference between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) compared to current tests. About 300 adults and teens will give a stool sample and have a colonoscopy as part of their regular care. If…

This study looks at whether a blood test that detects tumor DNA can help decide which people with diverticulitis need a colonoscopy to check for colorectal cancer. Currently, almost everyone with diverticulitis is advised to get a colonoscopy, but many are unnecessary. The resear…

This study looks at whether CT scans can be used instead of colonoscopies to screen for colon cancer. Researchers will compare how well each method finds polyps and cancer in 600 adults aged 50-70. If CT scans work just as well, it could offer a faster and less invasive screening…

This study looks at whether a blood test can detect if cancer comes back after surgery for colorectal or appendix cancer that spread to the abdomen. Researchers will collect blood samples from 55 patients before and after surgery to measure DNA changes. The goal is to see if this…

This study tests a special PET scan that uses a radioactive antibody (64Cu-M5A) to find cancers that produce a protein called CEA. The goal is to see if this scan can detect tumors that standard methods might miss. About 20 adults with CEA-positive cancers (such as breast, colon,…

This study follows 150,000 adults in the U.S. who were prescribed the Cologuard stool test for colorectal cancer screening. Researchers want to see how many people get a follow-up colonoscopy after a positive result and how often cancer is found. The goal is to understand the rea…

This study was designed to see how often the Metabiomics stool test fails to detect colon cancer in people already diagnosed and awaiting surgery. No one was enrolled because the study was withdrawn. The goal was to measure the test's false negative rate.

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 tests whether a high-fiber diet centered on legumes like dry beans can help overweight or obese adults who have had colon polyps lose weight and reduce their risk of colon cancer. Participants follow a diet with pre-portioned meals for up to a year, with nutritionist s…

This study tests a special probe that checks blood flow in ulcers left after colon polyp removal. The goal is to see if using this probe to guide treatment can prevent delayed bleeding, especially in patients taking blood thinners or with large polyps. About 180 high-risk adults …

This study tests whether taking oral vancomycin alongside other antibiotics can prevent Clostridioides difficile infection (C. diff) in people aged 65 and older. Participants are randomly assigned to receive either vancomycin or standard care. The goal is to see if the drug reduc…

This study tests whether taking two drugs, eflornithine and sulindac, together can lower the chance of new high-risk growths or a second colon cancer in people who have already had stage 0 to III colon or rectal cancer. About 350 participants who are cancer-free after surgery wil…

This study tests ways to help more people complete a colonoscopy after an abnormal stool-based colorectal cancer screening test. The researchers will use team-based best practices in clinics and a patient app with enhanced instructions and navigation. About 2,000 adults who speak…

This study tests whether wearing cold gloves during chemotherapy can prevent peripheral neuropathy (nerve damage causing numbness, tingling, or pain) in colon cancer patients. Forty adults with stage III colon cancer who are about to start a common chemo regimen (CAPOX) will be r…

This study tests whether atorvastatin, a widely used cholesterol medication, can reduce the risk of colon cancer in people with long-standing ulcerative colitis who carry a specific genetic mutation (P53). About 42 participants will take either atorvastatin or a placebo for a per…

This study tests whether giving patients their own preserved stool (collected before a stem cell transplant) can prevent Clostridium difficile infection afterward. About 59 adults receiving an allogeneic stem cell transplant are randomly assigned to get the stool transplant or st…

Doctors remove right or left colon cancer along with nearby lymph nodes, but the deep nerves that control the gut often get damaged. That damage can leave patients with lasting diarrhea, bowel spasms, or slow bowel movements. This trial compares standard surgery with a laparoscop…

During laparoscopic surgery on the rectum or lower sigmoid colon, the small intestine can slip into the operating area and block the surgeon's view. This trial tests a disposable isolation device that holds the small intestine away from the surgical site. Researchers compare the …

This early-phase study tests an oral drug called ropidoxuridine (IPdR) in people with advanced gastrointestinal cancers that cannot be cured. The goal is to find the safest dose and see if it can make radiation therapy more effective at shrinking tumors. Nineteen participants wit…

Researchers are testing a virtual stress-management program for people who care for a spouse or partner with a solid tumor cancer while also holding a job. The program teaches skills such as paced respiration, relaxation, and coping with work and caregiving demands across eight s…

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 explores whether physical activity and fitness can reduce inflammation and improve quality of life in children aged 6 to 17 with Crohn's disease or ulcerative colitis. Researchers will track 100 participants over time and test a 12-week supervised exercise program. The…

This trial tests whether people with mild diverticulitis can be safely treated at home with just pain medicines (ibuprofen and acetaminophen) instead of antibiotics. 556 participants will be randomly assigned to receive either pain medicines alone or pain medicines plus an antibi…

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 study tests whether using telemedicine and remote monitoring can help people with advanced digestive cancers manage chemotherapy side effects at home, reducing the need for emergency room visits and hospital stays. About 750 patients and their caregivers will receive enhance…

This study looks at 70 children aged 7 to 12 having appendix surgery. It compares two ultrasound-guided pain blocks to see which one reduces the need for extra pain medicine and improves recovery. The goal is to find a safer, more effective way to manage pain after surgery.

This study tests whether personalized exercise coaching can reduce fatigue and improve quality of life in children with inflammatory bowel disease (IBD). Seventy children will be split into two groups based on their current exercise habits and will follow a 24-week program with a…

This study looks at whether health education from nurses can improve quality of life and reduce anxiety and depression in people who have had digestive surgery and now have an ostomy. About 70 adults with permanent or long-term ostomies will take part in workshops and follow-up s…

This study tested whether a procedure called extracorporeal photopheresis (ECP) could help people with melanoma or lung cancer who have severe diarrhea and colon inflammation from immunotherapy drugs. ECP involves taking blood, treating white blood cells with a light-activated dr…

This study tests whether a 6-week online program based on Acceptance and Commitment Therapy (ACT) can help cancer survivors who have finished treatment feel less anxious and depressed. 32 survivors of breast, colon, or rectal cancer will be randomly assigned to either the online …

This study tests whether using a FitBit and a mobile app can help people recover at home after surgery for stomach, liver, colon, or other GI cancers. About 107 patients will either use the devices plus standard care, or standard care alone. The app tracks activity and symptoms, …

This study looks at whether acupuncture can reduce disease activity and pain in children with mild-to-moderate Crohn's disease or ulcerative colitis. About 60 kids on stable medication will receive acupuncture alongside their usual care. Researchers will measure changes in sympto…

Researchers are sequencing the gut microbiomes of people with a wide range of conditions, from autism and Alzheimer's to Crohn's disease and multiple sclerosis, to see whether bacterial patterns differ by disease. The study also enrolls healthy participants for comparison. By mat…

This study looks at tiny pieces of cancer cells or DNA floating in the blood of people with rectal cancer. Researchers want to see if these markers can help predict how the tumor responds to standard treatment. About 341 participants, including healthy volunteers, will provide bl…

This study looks at whether a website and a genetic family navigator can help more relatives of people with hereditary cancer get genetic testing. About 205 participants will use the online hub and work with a navigator to learn about their cancer risk. The goal is to see if this…

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 registry follows 535 adults with moderate-to-severe ulcerative colitis who are taking or starting Simponi. Researchers will track serious side effects like infections, cancers, and pregnancy outcomes over time. The goal is to better understand the long-term safety of this me…

This study follows nearly 5,000 children with Crohn's disease, ulcerative colitis, or indeterminate colitis to monitor the long-term safety of their treatments, including the drug infliximab. Researchers collect information on side effects, disease activity, and quality of life o…

This phase II trial, called MATCH, is testing whether treating cancer based on the genetic makeup of a patient's tumor works better than standard treatments. Over 6,400 adults with advanced solid tumors, lymphomas, or multiple myeloma that have not responded to prior therapy are …

This registry is following over 2,200 adults with inflammatory bowel disease (IBD) across North America to see how approved treatments work in everyday practice. Researchers are collecting data on disease patterns, complications, and patient outcomes. The goal is to better unders…

This pilot study is testing whether a simple blood test can detect tiny amounts of tumor DNA (ctDNA) in patients with early-stage colorectal cancer before and after surgery. The goal is to see if this test is practical and reliable for spotting any cancer cells left behind, which…

This study is testing whether a machine learning model can predict the extent of ulcerative colitis (UC) in the colon using only symptoms, physical signs, and lab results — before a colonoscopy is done. Researchers will analyze data from 1,500 people with UC to build and validate…

This study looks at whether taking extra random biopsies during a colonoscopy helps find precancerous growths in people with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. About 1,600 participants will be randomly assigned to one of two biopsy…

This study is creating a registry of 500 adults with functional GI disorders like IBS and chronic constipation. Researchers will collect medical data, diet and lifestyle questionnaires, and biological samples to explore genetic, microbial, and environmental factors. The goal is t…

This pilot study tests whether daily, at-home stimulation of a nerve in the ear can change brain activity in people with inflammatory bowel disease (IBD) who are in remission. Fifteen adults with Crohn's disease or ulcerative colitis will use a small device for 28 days and underg…

This study tests whether a standard nutrition screening tool, called PYMS, can accurately identify children with Crohn's disease or ulcerative colitis who are at risk of malnutrition. Researchers will use the tool on 2,000 children aged 4–18 with IBD in outpatient and inpatient c…

This study follows 565 people with stage I-III colon or rectal cancer to understand how treatment affects their finances and quality of life. Participants complete surveys about costs and financial well-being over 12 months. The goal is to help doctors better support patients fac…

This study follows people with colorectal cancer that has spread to the lining of the abdomen (peritoneal metastasis) or with pseudomyxoma peritonei, a rare tumor of the abdominal cavity. Participants undergo cytoreductive surgery to remove all visible tumors, followed by intrape…

This trial is testing an investigational imaging device that uses shortwave infrared light to help surgeons see important structures like nerves, ureters, and bile ducts during surgery. The study involves adults aged 18 and older who are undergoing certain surgical procedures, su…

This study compares two strategies to increase colon and liver cancer screening among 30,300 veterans. One approach directly reaches out to veterans to schedule tests, while the other helps healthcare providers fix system issues. Researchers will track screening rates over 12 mon…

This study tested whether routine screening for four cancers (prostate, lung, colorectal, and ovarian) can lower the number of people who die from these diseases. Over 154,000 adults aged 55–74 joined the trial. Researchers compared cancer deaths between those who got screened an…

This study is testing whether a simple stool test can predict if the gut lining is healing in people with moderate-to-severe ulcerative colitis who are starting biologic therapy for the first time. Researchers will measure levels of a protein called calprotectin in stool samples …

This study tests a new device that takes detailed images of the lower gut during a standard colonoscopy. About 250 adults aged 45 to 75 will have the probe used during their procedure. The goal is to see if the device works well for real-time imaging.

This study looks at how chronic noncommunicable diseases like inflammatory bowel disease and breast cancer impact a person's ability to work. Researchers will follow 200 working-age adults for 12 months, collecting data on health, work performance, and well-being. The goal is to …

This study looks at whether regular text message check-ins and the ability to text your IBD care team can improve disease management and quality of life. About 900 people with Crohn's disease or ulcerative colitis will take part. Some will get extra symptom surveys and texting ac…

This study looks at whether two blood markers, zonulin and LBP, can help detect liver damage in people with both ulcerative colitis (UC) and fatty liver disease. Researchers will measure these markers and use a special ultrasound to check liver stiffness in 100 adults with UC who…

This long-running study follows nearly 100,000 French women, mostly teachers, since 1990 to understand what factors influence their risk of cancer, heart disease, diabetes, and other major illnesses. Participants fill out questionnaires every few years about their lifestyle, medi…

This study looks at whether a 6-month or 12-month follow-up colonoscopy is better for people who had a large colon polyp (20-50 mm) removed that was not cancerous. About 546 adults will be assigned to one of the two follow-up schedules. The goal is to see which timing finds any r…

This study looks at whether chemotherapy slows tumor growth in people with a rare type of appendiceal cancer that has spread. About 30 participants will be observed with and without chemotherapy to compare tumor growth rates. The goal is to give doctors clearer guidance on whethe…

This study looks at how diet, genetics, and gut bacteria work together to cause digestive problems like IBS, IBD, and celiac disease. Researchers will follow about 4,000 adults with and without these conditions to find patterns. The goal is to understand why some people get sick …

This study looks at whether a special home care program helps people with a new stoma (a surgical opening on the belly) recover better after colorectal cancer surgery. About 98 adults who had a stoma created will get extra support and teaching to manage their stoma at home. The g…

This study looks at whether having close contact with pets can help keep your gut healthy while taking antibiotics and lower the risk of a serious infection called C. difficile. Researchers will follow 200 adults getting dental implants who need antibiotics, checking their gut ba…

This study looks at how the drug infliximab behaves in the body of people hospitalized with severe ulcerative colitis. Researchers measure drug levels in blood, stool, and colon tissue, along with changes in proteins and genes. The goal is to better understand how the drug works,…

This study screens adults interested in fecal microbiota transplant (FMT) for Clostridium difficile infection. Researchers will collect medical information and run basic health tests to create a database of potential participants. The goal is to make it faster and easier to enrol…

This study looks at how diet affects inflammation in people with Crohn's disease or ulcerative colitis (IBD). About 140 participants will either follow a Nordic-based test diet for six weeks or use a digital information tool. Researchers want to see if these approaches can reduce…

This study tests whether AI-generated messages can change how cancer survivors think about alcohol and cancer risk. About 850 adults who have had certain cancers and currently drink alcohol will view different messages. Researchers will measure changes in their beliefs about canc…

This study looks at 200 people with known or suspected inflammatory bowel disease (IBD). Researchers will use computers to analyze standard medical images and videos from endoscopies, biopsies, and scans. The goal is to create automated metrics that might help doctors assess IBD …

This study tests a special camera that measures oxygen levels in the bowel during colorectal surgery. Surgeons will use it to see if low oxygen areas predict leaks after the procedure. About 52 adults having laparoscopic colorectal surgery will take part. The goal is to see if th…

This study observes how 4,000 adults with ulcerative colitis are treated in real-world clinics, not in a controlled trial. Researchers will analyze prescription patterns and outcomes to create an updated treatment flowchart. The goal is to improve understanding of which therapies…

This research study collects tissue, blood, and other samples from 2,400 people diagnosed with breast, colon, kidney, liver, multiple myeloma, or prostate cancer at a young age. The goal is to identify genetic changes that may explain why these cancers occur early, especially in …

This study looks at survival rates for people with cancers like melanoma, breast, colon, and lung cancer using data from Russian cancer registries. It includes 100,000 people of any age. The goal is to understand survival trends to help improve cancer care, not to test a new trea…

This study compares open D3 surgery with laparoscopic CME surgery for right-sided colon cancer in 128 patients. The goal is to see if laparoscopic surgery leads to less pain, fewer complications, and faster recovery, while still being as effective at removing cancer. Researchers …

This study analyzes data from over 45,000 people diagnosed with colon or ovarian cancer in England between 2016 and 2017. Researchers are looking for differences in how quickly people are diagnosed and what treatments they receive, based on their socioeconomic status. The goal is…

This study looks back at medical records of 120 adults with Crohn's disease or ulcerative colitis who switched from intravenous to subcutaneous (under-the-skin) vedolizumab. Researchers want to see what dosing patterns doctors used and whether patients achieved remission. No new …

This study tests a computer tool that uses maps and location data to help infection preventionists find and stop hospital-acquired infections faster. About 25 infection prevention staff will use the tool and report how easy it is to use and whether it helps them respond more quic…

This study is for people with gastrointestinal cancer that has spread to the lining of the abdomen. Researchers will collect tumor tissue and blood samples to create a custom blood test that looks for cancer DNA. The goal is to see if this test can help doctors monitor the cancer…

This study looks at 50 patients with peritonitis caused by a burst diverticulum in the colon. Researchers will measure 92 inflammatory proteins in abdominal fluid and blood, and analyze tissue and bacteria changes. The goal is to better understand why some people develop this lif…

This study enrolls 4,000 people with breast, ovarian, or colorectal cancer to test a comprehensive genetic panel. The panel looks for inherited cancer risks and tumor mutations that may affect drug sensitivity. Researchers aim to validate these genetic findings to potentially gui…

This study tests whether a simple blood test that looks for tumor DNA can detect colorectal cancer coming back earlier than standard CT scans. About 359 people who had surgery for stage II or III colorectal cancer will be randomly assigned to either the blood test plus frequent P…

This study is testing a special thermal probe that measures temperature changes in the lining of the colon during a routine colonoscopy. The goal is to see if the probe can detect inflammation in people with inflammatory bowel disease (IBD), including Crohn's disease and ulcerati…

This study investigates genetic factors that may increase the risk of developing colorectal cancer at a young age (18-50). Researchers will collect blood or saliva samples and review medical records from 818 participants, including patients and their family members. The goal is t…

This study examines DNA from over 21,000 cancer patients in New York to find gene changes linked to several cancers, including breast, colon, and lung. Researchers will compare these genes to those from healthy people to spot differences. The goal is to generate ideas for future …

This study looks at whether helping people aged 40-49 with a family history of colon cancer make informed choices about screening leads to more colonoscopies. Participants either get standard care (direct referral for colonoscopy) or a shared decision-making session where they ca…

This study looks at 400 adults with acute appendicitis to figure out who can be treated with antibiotics alone and who needs surgery. Researchers will track lab results, imaging, and symptoms to see which approach works best for each patient. The goal is to help doctors choose th…

This 5-year observational study is following 15,000 adults and children with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, in real-world clinics. Researchers are collecting data on disease patterns, treatment use, and patient outcomes to bett…

This study aimed to see if two advanced imaging modes, TXI and RDI, built into standard colonoscopy equipment, could make removing large colon polyps faster and safer. The trial was planned for adults with polyps 20 mm or larger, but it was withdrawn before any participants were …

This study looks at whether continuous heart rate variability (HRV) monitoring can predict how well patients with inflammatory bowel disease (IBD) respond to biologic therapies like infliximab or vedolizumab. Researchers will track HRV in 100 patients starting treatment and compa…

This study looks at people aged 45-74 who had a positive fecal immunochemical test (FIT) but a normal colonoscopy. Even with a clear colonoscopy, these individuals may still have a higher risk of colorectal cancer. The trial will compare two follow-up options after two years: ano…

This observational study looks back at 700 patients from 15 hospitals in 2 countries to compare local treatments like surgery and radiation for brain metastases that spread from colorectal cancer. Researchers will track how long patients live and how long it takes for brain tumor…

This study aims to understand how inflammatory bowel disease (IBD) affects patients' quality of life. Researchers will survey 385 adults with Crohn's disease or ulcerative colitis about their symptoms, emotional well-being, and social support. The goal is to identify factors that…

This study tests a new payment model for cancer care in Hawaii. Instead of paying for each service separately, doctors get a single payment for an episode of care, with bonuses for meeting quality goals. The study includes 7 oncologists and looks at how this affects care quality,…

This study follows 189 adults hospitalized with acute severe ulcerative colitis to track their treatments and outcomes. Researchers will collect detailed medical data to identify factors that predict whether a patient needs stronger medications or emergency surgery. The goal is t…

This study is collecting blood, stool, and urine samples from 1,000 people with Inflammatory Bowel Disease (IBD). Researchers will store these samples along with medical information to learn more about the disease and find ways to improve patient outcomes. The study does not invo…

This observational study is following up to 500,000 adults with chronic gastrointestinal diseases like Crohn's disease, ulcerative colitis, and eosinophilic GI disease. Researchers will collect data from electronic health records and patient reports to understand how these condit…

This study looks back at 193 people with stomach, appendix, or colon cancer who had surgery with or without heated chemotherapy (HIPEC). Researchers want to see if HIPEC affects how quickly the bowels start working again after surgery and whether it leads to more complications. T…

This long-running study at Johns Hopkins aims to identify the genetic and environmental factors that cause inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. Researchers are enrolling 2,500 participants — including patients, their family members, …

This study aimed to find out if certain genes that affect bleeding can cause a false positive result on a stool test used to screen for colon cancer. Researchers planned to compare genetic markers in people who had a high test result but a normal colonoscopy with those who had no…

This study aims to better understand inflammatory bowel disease (IBD) by collecting tissue samples from 1,100 people undergoing endoscopy or bowel surgery. Researchers will analyze gene activity, proteins, and gut microbes to learn what causes the disease. The study includes both…

This study aims to find genes that cause inflammatory bowel disease (IBD) specifically in African Americans. Researchers will collect health information and blood samples from 2,400 African Americans, both with and without IBD. No treatment is given—the goal is to better understa…

This study observes 562 adults with inflammatory bowel disease (Crohn's disease or ulcerative colitis) who are starting or switching to Hyrimoz®, a biosimilar of adalimumab. Researchers will track how many patients continue the treatment after 6 months and why some stop, such as …

This study collects blood and saliva samples from people with cancer and their relatives to build a DNA bank. Researchers hope to better understand how cancer runs in families. About 992 participants are expected to join. The samples will be stored and analyzed later for genetic …

This study looks at two different surgeries for a rare colon cancer located at the splenic flexure. About 140 patients will be split into two groups: one getting a smaller surgery (removing only the tumor section) and the other a larger surgery (removing more colon and lymph node…

This study brings together cancer experts to agree on standard definitions for key measurements used in cancer clinical trials, such as how long patients live without their cancer getting worse. Currently, different trials define these measurements in different ways, making it ha…

This pilot study aims to develop new ways to diagnose colon cancer and predict if it will spread to the liver. Researchers will collect blood and liver tissue samples from 51 patients undergoing surgery for colon cancer or benign colon growths. The goal is to find biomarkers that…

This study is checking how many people with suspected hemorrhagic proctosigmoiditis (a type of bowel inflammation) actually have a sexually transmitted infection (STI) like chlamydia or gonorrhea. Researchers will take a swab during a routine colonoscopy from 214 patients across …

This study searches for new gene changes (mutations) that appear in cancer patients but not in their healthy parents. By comparing DNA from 1,275 people with certain cancers and their families, researchers hope to find genetic clues that increase cancer risk. The goal is to bette…

This study looks at how moderate aerobic exercise (like brisk walking) might help prevent colorectal cancer from coming back. Researchers will measure changes in inflammation and other blood markers in 60 people who have finished cancer treatment. Participants either walk on a tr…

This study is collecting health information from 2,000 people with Crohn's disease or ulcerative colitis across three hospitals in South Korea. Researchers aim to build computer models that can predict how each patient will respond to different treatments. No new drugs are being …

This study follows over 2,000 Korean patients with stage II or III colon cancer after surgery to see which chemotherapy treatments they actually receive and how they fare. Unlike typical clinical trials, it includes older adults and reflects real-world medical practice. The goal …