Large intestine disorder

This trial is testing an experimental therapy called IOV-5001, which uses a patient's own immune cells (tumor-infiltrating lymphocytes) to attack cancer. The study involves adults with advanced solid tumors, including non-small cell lung cancer, triple-negative breast cancer, col…

This study tests whether liver transplantation can extend survival for adults with colorectal cancer that has spread only to the liver and cannot be removed or destroyed by local treatments. About 260 participants aged 18 to 65 will receive a new liver from a deceased or living d…

Researchers are testing whether a combination of chemotherapy (mFOLFOX6) plus two immunotherapy drugs, suvemcitug and enlonstobart, can shrink high-risk mid-rectal cancer enough to safely skip pelvic radiation before surgery. The trial enrolls 52 adults with locally advanced rect…

Researchers are testing a combination treatment for people with recurrent cryptoglandular perianal fistula, a painful tunnel that keeps coming back after surgery. The study enrolls 25 adults who have had at least two failed fistula operations and have a seton drain in place for a…

This trial is testing an experimental oral drug, LG00313112, in people with advanced solid tumors that carry a specific genetic change called TP53 Y220C. The drug aims to restore the function of the p53 protein, which normally helps stop cancer growth. The study includes adults w…

This study tests whether giving the immunotherapy drug dostarlimab for a longer period can completely eliminate tumors in people with a specific genetic type of rectal cancer. Participants have stage II or III rectal cancer that is mismatch repair deficient (dMMR) or microsatelli…

This study tests a new vaccine (IP-QSV) designed to protect against four types of Shigella bacteria, which cause severe diarrhea. The trial will include 370 healthy adults, children, and infants in Mali. Researchers will check if the vaccine is safe and triggers a strong immune r…

This study follows up on African children who received an experimental Shigella vaccine in earlier studies. Researchers will take blood samples 1, 2, and 3 years after the last vaccine dose to see how long the immune protection lasts. No new vaccines are given in this study. The …

This trial tests whether a 7-day course of antibiotics after draining a first-time perianal abscess can stop an anal fistula from forming. Adults with a first abscess are randomly assigned to receive antibiotics or not, then followed for up to 12 months. The goal is to see if ant…

This trial tests whether a drug called carfilzomib, given directly to the liver through an implanted pump, is safe for people whose colon, adrenal, or bile duct cancer has spread to the liver and persists after prior pump therapy. Participants receive weekly infusions of the drug…

Acute uncomplicated diverticulitis is often treated with antibiotics, but evidence suggests they are not always needed. This study evaluates whether a standardized treatment approach based on clinical findings, lab results, other health conditions, and CT scans can reduce unneces…

Researchers are testing whether QL1203, a proposed biosimilar of the drug Vectibix (panitumumab), behaves similarly in the body to the original Vectibix when both are combined with chemotherapy (mFOLFOX6). The trial enrolls adults with RAS wild-type metastatic colorectal cancer t…

Researchers are studying whether patients can safely leave the hospital within 48 hours after minimally invasive colorectal surgery. The trial follows 97 adults having elective laparoscopic or robotic surgery for benign or malignant disease. It checks how many meet predefined cli…

This early-stage trial tests an oral capsule containing a genetically modified probiotic yeast designed to neutralize toxins produced by C. diff bacteria. The study first evaluates safety in healthy adults, then in people at risk for recurrent C. diff infection. Participants take…

This study compares four different sequences of biologic drugs (infliximab, filgotinib, ustekinumab, and vedolizumab) in 240 adults with moderate to severe ulcerative colitis. The goal is to see which order of treatments works best to achieve and maintain remission without steroi…

Researchers are running a Phase I trial of HEC-921, an experimental drug given by intravenous infusion, in adults with advanced malignant solid tumors. The study first gives HEC-921 alone to find the highest dose people can tolerate, then tests it in combination with oxaliplatin,…

This phase 2 trial is testing whether a lower dose of the immunotherapy drug nivolumab, given less often, can still control cancer in people with various advanced or metastatic cancers. The goal is to see if a cheaper, more accessible regimen works as well as the standard high-co…

Researchers are testing an experimental injectable drug called ALK-N001 in adults with advanced gastrointestinal tumors, including esophageal and colorectal cancers that have worsened after standard treatment. The phase II trial gives the drug intravenously every two weeks at one…

Researchers are running a first-in-human study of MGC030, an antibody-drug conjugate, in people with advanced solid tumors that have come back or stopped responding to standard treatment. The trial includes participants with urothelial, colorectal, gastric, gastroesophageal, esop…

Researchers are tracking how long adults with moderate to severe Crohn's disease or ulcerative colitis keep taking guselkumab, a biologic drug, in routine care. The study follows about 400 people who start the treatment and records when they stop. It also checks whether early imp…

Researchers are running a phase 1 trial to find out how safe and tolerable ATTO-1091 is in healthy adults and in people with ulcerative colitis. The study also measures how long the drug stays in the body. About 96 participants will receive either ATTO-1091 or a placebo, visit th…

This trial tests whether a combination of two investigational drugs (QL-1706) plus chemotherapy and bevacizumab, with or without radiation, can shrink or eliminate tumors in people with locally advanced rectal cancer before surgery. The goal is to see if this neoadjuvant approach…

Researchers are testing whether nitazoxanide, an antiparasitic drug with anti-inflammatory properties, can help people with mild-to-moderate ulcerative colitis when added to their usual treatment. The trial enrolls adults aged 18 to 65 with active disease and stable therapy. Over…

Researchers are testing whether adding serplulimab, an immunotherapy, to standard CAPOX chemotherapy and bevacizumab can shrink locally advanced colorectal tumors before surgery. The study enrolls about 85 adults with locally advanced rectal adenocarcinoma. The main goal is to se…

Researchers test whether giving mFOLFOXIRI plus bevacizumab before surgery can shrink locally advanced rectal cancer enough to avoid removing the rectum. Adults with stage II or III rectal cancer receive six cycles of the drug combination. Depending on how well the tumor responds…

Researchers test whether adding retlirafusp alfa, an experimental immunotherapy, to standard targeted drugs and chemotherapy can shrink colorectal cancer that has spread to the liver enough to allow surgery. The trial enrolls about 80 adults with initially unresectable liver meta…

Researchers are testing whether adding targeted radiation plus the immunotherapy drug cadonilimab to standard second-line chemotherapy helps adults with colorectal cancer that has spread only to the peritoneum. The trial enrolls about 198 participants and randomly assigns them to…

Researchers are testing whether adding olomorasib, an experimental drug that targets the KRAS G12C mutation, to cetuximab and standard chemotherapy (mFOLFOX6) helps people with advanced colorectal cancer that cannot be removed by surgery or has spread. The trial enrolls about 50 …

This study tests whether oral vancomycin, an antibiotic, can help children aged 6-15 with inflammatory bowel disease (IBD), especially types linked to liver problems. About 140 kids will either get vancomycin plus standard care or standard care alone for up to a year. Researchers…

People newly diagnosed with breast, colorectal, lung, or prostate cancer often also manage other long-term conditions and take multiple medications. This pilot study tests whether a pharmacist-led medication review plus the Medisafe mobile app helps them stick to those regimens. …

This phase 1 trial tests an investigational drug called DEM301 in adults with advanced colorectal cancer that has progressed after standard treatments. DEM301 is an antibody-drug conjugate, a type of therapy designed to deliver a toxic agent directly to cancer cells. The study ai…

Researchers are testing whether a diet low in serine and glycine, combined with chemotherapy, immunotherapy, and radiotherapy, improves outcomes for people with locally advanced rectal cancer. The trial enrolls 140 adults aged 18 to 80 with stage cT3, cT4, or node-positive rectal…

This study will test hyperbaric oxygen therapy (HBOT) — breathing pure oxygen in a pressurized chamber — for over 30 conditions, including long COVID, Crohn's disease, frostbite, and multiple sclerosis. Researchers will track 100 patients to see if HBOT improves their quality of …

This phase II trial is testing whether a 16-hour fast before each dose of the immunotherapy drug serplulimab, combined with chemotherapy, can improve outcomes for people with a common type of locally advanced rectal cancer. The approach aims to boost the immune system's ability t…

This early-stage trial tests an experimental drug called STRO-006 in adults with advanced solid tumors, including head and neck, lung, esophageal, gastric, colorectal, endometrial, bladder, and breast cancers that have not responded to standard treatments. The study has three par…

This phase 2 trial tests whether giving two immunotherapy drugs, pembrolizumab and porustobart, before surgery can shrink tumors in adults with a common type of colon cancer called MSS (microsatellite stable) that has not spread. Participants receive the drugs through a vein, wit…

This phase 2 trial tests whether adding the investigational drug becotatug vedotin to pucotenlimab and capecitabine before standard chemoradiotherapy can improve outcomes for people with locally advanced squamous cell carcinoma of the anal canal. Participants first receive two cy…

This trial tests an experimental oral drug called DES-1357 in adults with metastatic colorectal cancer that has specific genetic features (dMMR or MSI-H). The study runs in three parts: first, to find a safe dose; second, to check tolerability and early signs of tumor shrinkage; …

This early-stage trial tests an investigational drug called ABBV-253 in adults with advanced solid tumors, including lung, colorectal, and pancreatic cancers. The study aims to find safe doses and see whether the drug can shrink tumors. Participants receive the drug by infusion, …

This study tests a drug called sacituzumab tirumotecan in 20 people with advanced anal or rectal cancer that has spread or cannot be removed and has not responded to other treatments. The goal is to see if the drug can shrink tumors and how safe it is. Participants will receive t…

This trial tests whether a coordinated care pathway, involving oncologists, geriatricians, pharmacists, and pharmacologists, can reduce severe side effects in adults over 70 with certain cancers who are starting oral therapy. Participants receive extra monitoring, including blood…

This trial tests whether an experimental drug called LBL-024, when combined with standard treatments like bevacizumab, oxaliplatin, capecitabine, or fruquintinib, can safely shrink tumors in people with metastatic colorectal cancer. The study includes adults aged 18 to 75 who hav…

This early-phase trial tests two immunotherapy drugs (ivonescimab and ADG126) alone or with chemotherapy in 30 adults with advanced or metastatic MSS colorectal cancer, a type that doesn't respond well to standard immunotherapy. The main goal is to find safe doses and check for s…

This trial tests whether preparing the bowel before fistula laser closure surgery helps the wound heal better. Anal fistulas are abnormal tunnels that can form near the anus, and laser closure is a technique to seal them while sparing the muscle. Researchers will compare two grou…

This trial tests a cell therapy called DC-CTL, made from a patient's own immune cells, combined with standard anti-tumor treatment. The goal is to see if this approach is safe and may help control solid tumors such as colorectal, esophageal, lung, liver, and breast cancer. About …

This trial tests whether adding Bacillus probiotic spores to standard treatment can help people with Crohn's disease or ulcerative colitis. Researchers will give 150 adults either a placebo or one of two probiotic formulas for 30 days, alongside their usual care. The goal is to s…

This trial tests whether a minimally invasive laser procedure can close low perianal fistulas as effectively as traditional open surgery. Adults with a primary low perianal fistula are randomly assigned to receive either laser closure or open fistulectomy. Researchers track heali…

This phase 1 trial tests the safety and tolerability of LMT503, an oral drug intended for inflammatory bowel disease, in healthy adults aged 18 to 65. Participants receive either LMT503 or a placebo in single or multiple ascending doses, with some also checking how food affects t…

This phase II trial tests whether adding retlirafusp alfa to standard chemotherapy and bevacizumab can shrink tumors in people with advanced RAS-mutated colorectal cancer that has spread to the liver. The study enrolls 46 adults who have not had prior systemic treatment and whose…

This trial tests whether adding trastuzumab rezetecan, a targeted antibody-drug, to standard chemotherapy and bevacizumab can safely control advanced colorectal cancer that carries the HER2 marker. Researchers will enroll 48 people with HER2-positive, unresectable or metastatic c…

This observational study tracks how long patients with moderate-to-severe Crohn's disease or ulcerative colitis continue taking guselkumab, a biologic treatment, in everyday clinical practice. Researchers will measure time until treatment discontinuation and early responses like …

This trial tests whether a dietary fiber called resistant potato starch can reduce the amount of drug-resistant bacteria living in the gut. The study enrolls Veterans who carry these bacteria without symptoms, and half will take the starch daily while the other half takes a place…

This study offers continued access to tucatinib, an oral targeted therapy, for people with HER2-positive cancers (including breast, cervical, and lung) who were already benefiting from the drug in a previous Pfizer-sponsored trial. The main goal is to monitor long-term safety and…

This pilot study tests whether a surgeon located at a different hospital can safely perform parts of robotic prostate or colorectal cancer surgery using the Toumai robotic system. The local surgical team remains with the patient and can take over control at any moment. Researcher…

This early-stage trial is testing an investigational drug called BL-ARC002 in people with advanced gastrointestinal or other solid tumors that have spread. The main goals are to find a safe dose and to see if the drug shows any signs of shrinking tumors. Participants receive the …

This study tests whether two immunotherapy drugs, cemiplimab and fianlimab, can safely shrink colon tumors before surgery in people with stage II-III colon cancer that hasn't spread. Participants get two IV doses before surgery, then are followed for up to three years. The goal i…

This phase II trial is testing whether combining the experimental immunotherapy drug ivonescimab with chemotherapy (paclitaxel) delivered directly into the abdomen can safely and effectively treat people with high-grade metastatic appendiceal adenocarcinoma that cannot be removed…

This phase III trial is testing whether an experimental drug called BL-M07D1 can slow or stop the growth of advanced colorectal cancer in people whose tumors have high levels of the HER2 protein and who have already tried standard chemotherapy. Participants will be randomly assig…

This early study tests whether adding donor natural killer (NK) cells to standard maintenance therapy can safely help control advanced lung and colorectal cancers. About 20 adults will receive NK cell infusions alongside their usual drugs. The main goal is to check for side effec…

This trial compares two oral medications for active ulcerative colitis, a chronic inflammatory bowel disease causing diarrhea, bleeding, and pain. About 320 Chinese adults will be randomly assigned to take either etrasimod, a newer drug that blocks immune cells from entering the …

This trial is testing whether combining the drug mirikizumab with a surgical procedure can help heal perianal fistulas in people with Crohn's disease. Participants will receive the drug through infusions and injections, along with two surgical steps to clean and close the fistula…

This study tests whether people with certain gastrointestinal cancers—like stomach, esophageal, or colorectal—can safely skip radical surgery after responding well to precision therapies such as immunotherapy or targeted drugs. Participants with specific molecular markers will be…

This phase 2 trial is testing whether adding the immunotherapy drug sintilimab and the anti-angiogenic drug suvemcitug to standard chemoradiation can improve outcomes for people with locally advanced rectal cancer that is microsatellite-stable (pMMR). The study plans to enroll 18…

This early-stage trial tests a topical ointment called ACU-D1 for HPV-related vulvar and perianal lesions in people with HIV. Nine participants will apply the cream twice daily for 4 weeks. The main goal is to find the safest dose and see if the treatment can boost immune markers…

This early trial is testing whether a new investigational drug called HX15001, given as an injection, can be safely combined with an existing pill (etrasimod) to treat moderate-to-severe ulcerative colitis. The study will include about 32 adults with the condition and will focus …

This clinical trial is testing an experimental oral medication called AC-101 in adults with moderately to severely active ulcerative colitis (UC), a chronic inflammatory bowel disease. The study aims to see if AC-101 can help achieve clinical remission—meaning fewer symptoms and …

This study tests whether adding a heat treatment (thermal ablation) to the standard procedure for removing large colon polyps can lower the chance they grow back. About 752 adults will be randomly assigned to receive either standard removal alone or standard removal plus burning …

This phase 2 trial is investigating whether adding a ketogenic diet and/or high-dose intravenous vitamin C to standard chemoradiotherapy and immunotherapy can improve outcomes for patients with locally advanced rectal cancer that is mismatch repair proficient (pMMR/MSS). The stud…

This trial compares two endoscopic techniques for removing flat, non-cancerous colorectal polyps that are 10-20 mm in size. One method uses a cold snare (no heat), while the other uses a hot snare with electrocautery. The goal is to see if the cold approach is just as effective a…

This trial tests whether an AI tool called SurgDiff can predict how difficult rectal cancer surgery will be, based on MRI scans and patient data. The goal is to help surgeons choose the best surgical approach for each patient, potentially reducing complications. The study involve…

This early-stage trial is testing an experimental oral medication called HRS-7085 in adults with moderate to severe ulcerative colitis, a chronic inflammatory bowel disease. The main goal is to see if the drug is safe and tolerable, and to understand how it moves through the body…

This early-stage trial is testing an experimental drug called SHR-7590 to see if it is safe and tolerable when given by injection under the skin or into a vein. It involves healthy volunteers and people with moderate-to-severe ulcerative colitis, a condition that causes inflammat…

This trial tests whether an arginine-free diet, given as a liquid formula for four weeks, can enhance the effects of standard chemoradiotherapy in people with locally advanced rectal cancer. The study first checks the diet's safety in a small group, then randomly assigns about 13…

This study tests whether an intestinal or multivisceral transplant can help people with a rare abdominal cancer called pseudomyxoma peritonei (PMP) that cannot be removed by surgery. Twenty participants will receive the transplant and be followed for 12 months to see if they surv…

This trial is testing whether a probiotic supplement called Colipral, which contains a specific strain of E. coli bacteria, can improve gut health in people with ulcerative colitis who are in remission but still have digestive issues. Participants will take either the supplement …

This trial is testing an experimental oral drug called PTT-621 in adults aged 18-70 with moderate-to-severe ulcerative colitis who haven't responded well to standard treatments. Participants will take PTT-621 tablets for 12 weeks. The main goal is to see if the drug can improve t…

This trial is testing whether an investigational drug called SYS6090, when combined with standard treatments like bevacizumab and chemotherapy, can safely and effectively treat advanced colorectal cancer that cannot be removed by surgery. The study includes adults with a specific…

This early-stage trial is testing whether a drug called aletekitug is safe and tolerable for people with moderate to severe ulcerative colitis, a chronic inflammatory bowel disease. The drug works by blocking a protein called IL-18, which may play a role in the inflammation that …

This early trial is testing an experimental biologic drug called aletekitug in adults with moderate to severe ulcerative colitis. The main goal is to see if the drug is safe and tolerable when given repeatedly. Researchers will monitor side effects and changes in lab tests, vital…

This trial investigates whether a sensitive blood test (Signatera) can detect when it is safe to pause immunotherapy in people with advanced solid tumors like lung cancer, melanoma, and colorectal cancer. Participants are randomly assigned to either continuous standard immunother…

This early-stage trial is testing an experimental oral medication called Alpha-0261 in about 10 adults with moderate to severe ulcerative colitis. The main goal is to check the drug's safety and tolerability, while also looking at whether it can help reduce symptoms and lead to c…

This trial tests whether a special light mode called linked color imaging (LCI) helps doctors find more sessile serrated lesions (a type of precancerous colon polyp) during colonoscopy than standard white light. About 2,000 adults aged 45 and older having their first screening co…

This trial is testing whether an experimental drug called MRG007, given together with standard chemotherapy and targeted therapies, can safely shrink tumors in people with advanced colorectal cancer that cannot be removed by surgery. The study involves about 316 participants and …

This early-stage trial is testing an experimental treatment called the IKS04 regimen in people with advanced cancers of the digestive system, including colorectal, stomach, pancreatic, and bile duct cancers. The regimen combines a targeted antibody-drug conjugate with an addition…

This study tests whether a temporary higher dose of upadacitinib (45 mg daily) can bring ulcerative colitis back under control in adults whose disease flared up while on the standard 30 mg maintenance dose. Participants receive the higher dose for 8 to 16 weeks, then may step dow…

This trial is testing whether transplanting healthy gut bacteria can boost the power of immunotherapy and chemoradiotherapy in people with a common type of locally advanced rectal cancer. Participants receive a combination of sintilimab (an immunotherapy drug), CAPOX chemotherapy…

This phase 3 trial tests whether giving the targeted therapy cetuximab plus FOLFIRI chemotherapy in scheduled breaks works as well as continuous treatment for people with a specific genetic type of metastatic colorectal cancer (RAS/BRAF wild-type). The study compares how long the…

This phase 2 trial is testing whether adding an experimental drug called DCSZ11 to standard radiation and chemotherapy can improve outcomes for people with a high-risk type of rectal cancer. The study will enroll 30 adults who have not had prior treatment. The goal is to see if t…

This phase II trial is testing whether adding an experimental drug called retlirafusp alfa to standard chemotherapy and bevacizumab, with or without a short course of radiotherapy, can shrink liver metastases from colorectal cancer enough to allow surgical removal. The study enro…

This study tests whether adding a combination of curcumin (from turmeric) and QingDai (a traditional Chinese herb) to standard vedolizumab treatment can help people with moderate to severe ulcerative colitis reach remission. About 160 adults will receive either the herbal combo o…

This phase 3 trial is testing whether adding two immune-boosting drugs, iparomlimab and tuvonralimab, to standard chemotherapy can help people with a specific type of metastatic colorectal cancer that has stopped responding to first-line treatment. The study includes about 270 ad…

This trial tests whether a combination of whole-body electromyostimulation (WB-EMS) — a technology that uses electrical impulses to make muscles contract — and nutritional therapy can help people with certain gastrointestinal cancers preserve muscle mass. Participants include tho…

This phase 3 trial is testing whether adding a three-month course of FOLFOX4s chemotherapy after short-course radiotherapy improves outcomes compared to radiotherapy alone in adults aged 75 and older with locally advanced rectal cancer. The study aims to see if the combination ca…

This phase 4 trial is for people with advanced colorectal cancer that started on the right side of the colon and has a normal RAS gene. Researchers want to see if adding the targeted drug cetuximab to standard chemotherapy helps shrink tumors more than chemotherapy alone or with …

This trial asks whether adults with ulcerative colitis who are in deep remission can safely stop taking their JAK inhibitor medication (tofacitinib, upadacitinib, or filgotinib) instead of continuing daily maintenance therapy. Half of the 224 participants will stop treatment and …

This phase 2 trial tests whether combining the experimental drug tunlametinib with other targeted therapies can shrink tumors or slow cancer growth in people with metastatic colorectal cancer that has worsened after at least one prior treatment. Participants are grouped based on …

This study tests whether sending patients home on the same day of surgery, with follow-up care via phone calls, home visits, and a mobile app, is as safe and less costly than keeping them in the hospital overnight. The trial includes adults in Uganda having low-risk procedures su…

This study looks at how the oral medication etrasimod works for Chinese adults with active ulcerative colitis (UC) in real-world settings. About 500 participants will take etrasimod as part of their routine care and be followed for at least 52 weeks. Researchers will track change…

This phase 2 trial tests an experimental drug called SHR-A1904 in people with advanced colorectal cancer that has spread and no longer responds to standard treatments. The study aims to see if the drug is safe and can shrink tumors or slow the disease. Participants must have alre…

This pilot study tests whether providing medically tailored meals and fresh produce can help people with stage I-III colorectal cancer eat fewer ultra-processed foods. Participants are randomly assigned to receive fully prepared meals, meals plus fresh produce, or meal-planning m…

This study tests a new biologic drug called XYA02 in 190 adults with advanced solid tumors (including lung, ovarian, and pancreatic cancers) that have not responded to standard treatments. The main goals are to check safety, find the best dose, and see if the drug can shrink tumo…

This observational study follows about 196 adults with early-stage (pT1) rectal cancer who have high-risk features after local tumor removal. Instead of undergoing radical surgery that often requires a colostomy, participants receive adjuvant radiotherapy or chemoradiotherapy. Th…

This phase 2 trial tests whether giving a combination of an immunotherapy drug (serplulimab), an epigenetic drug (decitabine), and chemotherapy (CAPOX) before surgery can improve outcomes for people with locally advanced colorectal cancer. The study enrolls 35 adults with previou…

This trial investigates whether combining two drugs—trastuzumab deruxtecan (T-DXd) and cetuximab—can shrink tumors in people with advanced colorectal cancer that has low levels of the HER2 protein and has worsened after standard treatments. The study enrolls adults with metastati…

This pilot study explores whether patients with margin-clear stage II or III rectal cancer who do not need a permanent colostomy can safely go straight to surgery instead of receiving chemotherapy first. Participants are randomly assigned to either 12 weeks of chemotherapy follow…

This trial tests whether closing the surgical wound immediately after cleaning it with a special high-pressure irrigation technique (HIEDI) is as good as or better than waiting a few days to close it. The study involves 200 people aged 12 and older who have open surgery for compl…

This study tests an experimental drug, TAX2, in adults with advanced or metastatic solid tumors that have not responded to standard treatments. The trial has two parts: first, finding a safe dose, and then testing that dose in more people. Researchers will monitor side effects, h…

This trial investigates whether adding two targeted drugs—tafolecimab and sintilimab—to standard chemoradiation can improve outcomes for people with locally advanced rectal cancer that has not spread. Participants receive short-course radiation followed by chemotherapy plus immun…

This trial investigates whether adding the drug savolitinib to standard chemotherapy plus cetuximab improves tumor shrinkage in people with a specific genetic subtype (RAS/BRAF wild-type) of metastatic colorectal cancer that has not been treated before. Participants are randomly …

This phase II trial tests a combination of two drugs—SYS6026 and Enlonstobart—in people with advanced solid tumors that have spread and are linked to HPV types 16 or 18. The study aims to see if the combination is safe and shows signs of shrinking tumors. Participants must be at …

This trial compares two techniques—snare tip soft coagulation and hybrid APC—used to burn the edges of the wound after removing large colon polyps. The goal is to see which method is faster while still preventing polyps from coming back. About 140 adults with large non-cancerous …

This phase 2 trial tests whether the combination of pembrolizumab (an immunotherapy) and lenvatinib (a targeted therapy) can shrink tumors in people with advanced anal squamous cell cancer that cannot be removed by surgery or has spread to other organs. Participants must have alr…

This study compares two ways to treat uncomplicated perianal fistula: conventional open surgery (fistulectomy) and a newer laser ablation technique. About 72 adults with a single, simple fistula tract will be randomly assigned to one of the two procedures. Researchers will track …

This phase 2 trial is testing whether giving two drugs—Zanzalintinib and Retifanlimab—before surgery can help patients with early-stage colon cancer. The study enrolls adults aged 18 to 80 with a type of colon cancer called pMMR that can be removed surgically. Participants receiv…

This phase 2 trial tests whether adding an experimental drug called tovecimig to standard chemotherapy (FOLFIRI) can shrink tumors or slow cancer growth in people with metastatic colorectal cancer who have already tried one prior treatment. The study will enroll 25 participants a…

This phase 2 trial tests whether combining sintilimab (an immunotherapy) with gossypol acetate (a compound from cottonseed) can shrink tumors in people with advanced colorectal cancer that has not responded to at least two prior treatments. The study will enroll 32 adults aged 18…

This phase 2 trial tests whether adding a new form of interferon (rSIFN-co) to standard total neoadjuvant therapy (short-course radiation plus chemotherapy) can improve the chance of complete tumor disappearance in people with mid-low locally advanced rectal cancer. About 90 adul…

This study looks at whether immunotherapy can shrink certain gastrointestinal cancers (like colorectal or stomach cancer) enough that some patients may not need major surgery. People whose tumors have specific genetic features (MSI-H/dMMR or POLE mutation) and who respond well to…

This study tests a new drug called TQB2930, which targets the HER2 protein on cancer cells, combined with standard chemotherapy and possibly another drug (bevacizumab). The goal is to find the safest and most effective dose and see if it shrinks tumors in people with advanced col…

This early-phase trial tests a new drug called nelmastobart, combined with two existing cancer drugs (TAS-102 and bevacizumab), in 45 Chinese patients with advanced colorectal cancer that has not responded to standard treatments. The main goal is to check safety and how the body …

This study tests whether adding two immunotherapy drugs to radiation therapy can better shrink advanced rectal cancer than standard chemoradiation. About 342 adults with a specific type of rectal cancer will be randomly assigned to one of three treatment groups. The goal is to se…

This study tests an experimental tablet called Hemay005 in 360 Chinese adults with moderate to severe ulcerative colitis, a chronic gut condition. Participants will receive either the drug or a placebo to see if it can bring about remission and improve symptoms over 12 weeks, wit…

This phase II trial tests a new approach for high-risk locally advanced rectal cancer. Participants first receive short-course radiotherapy, followed by a combination of chemotherapy (NALIRIFOX) and immunotherapy (Pucotenlimab) for about 6 months. The goal is to see if this regim…

This early-stage trial tests a new drug called EMB-01, a bispecific antibody that targets two cancer-related proteins, combined with standard chemotherapy. About 120 adults with advanced colorectal cancer that cannot be surgically removed will receive the combination. The main go…

This early-phase trial tests an experimental drug called CLSP-5282 in up to 140 adults with advanced solid tumors (like lung, pancreatic, or colorectal cancer) that have a specific genetic change called KRas G12V. The drug is given by IV infusion. The main goals are to check safe…

This study tests whether adding an experimental immunotherapy drug (QL1706) to standard chemotherapy and radiation can shrink liver tumors from colon cancer enough to allow surgery. About 30 adults with colon cancer that has spread only to the liver will receive the combination b…

This small study tests a new approach for people with stage II/III rectal cancer that has not spread. Instead of chemotherapy, patients receive targeted internal radiation followed by two doses of the immunotherapy drug nivolumab before surgery. The goal is to see if this combina…

This study looks at whether people with certain genetic types of gastrointestinal cancers (stomach, colorectal, or anal) can safely avoid major surgery after immunotherapy. Instead of removing the organ, doctors will monitor closely or do smaller procedures to remove any remainin…

This trial tests a drug called HRX215 in 80 adults with colorectal cancer that has spread to the liver. Before surgery to remove liver tumors, patients often get a procedure (PVE) that blocks blood flow to the tumor area to encourage the healthy part of the liver to grow. HRX215 …

This early-phase trial tests a combination of three drugs—TAS-102, bevacizumab, and serplulimab—in 20 people with metastatic colorectal cancer who have already had surgery to remove tumors. The goal is to see if the combination is safe and can delay cancer progression. Participan…

This study tests a new drug (GV20-0251) combined with an immunotherapy (anti-PD-1) in people with advanced solid tumors that have not responded to or cannot tolerate standard treatments. About 227 adults with various cancers, including lung, breast, and colorectal, will participa…

This early-phase study tests a drug called zanidatamab in 10 adults with advanced HER2-positive solid tumors (like endometrial, bladder, or pancreatic cancer) that have worsened after at least one prior treatment. Participants receive the drug by IV every two weeks. The main goal…

This study tests a drug called Trastuzumab Rezetecan in 15 adults with advanced solid tumors that have the HER2 protein. The goal is to see if the drug can shrink tumors. Participants get the drug by IV every 3 weeks. This is for people whose cancer has worsened after other treat…

This phase 3 trial tests whether a blood test that measures tumor DNA (ctDNA) can help doctors decide when to reduce or switch chemotherapy in people with metastatic colorectal cancer. About 408 participants will be randomly assigned to either standard treatment or a strategy whe…

This phase 2 trial tests a combination of two drugs—becotatug vedotin (a targeted therapy) and pucotenlimab (an immunotherapy)—as a first treatment for advanced head and neck squamous cell carcinoma. It is for patients whose cancer has returned or spread and who cannot tolerate p…

This study tests a treatment called extracorporeal photopheresis (ECP) for people with advanced melanoma who develop severe colitis or hepatitis from immunotherapy. ECP filters a patient's blood, treats it with a light-activated drug, and returns it to the body. The trial compare…

This study tests a new chemotherapy regimen called FOLFOX8 against the standard mFOLFOX6, both combined with targeted drugs (bevacizumab or cetuximab), as a first treatment for people with metastatic colorectal cancer that cannot be surgically removed. About 229 participants will…

This early-stage study tests a new tablet, LT-010391, in people with advanced solid tumors (lung, colon, or pancreatic cancer) that have a specific genetic change called KRAS G12D. The main goals are to check safety and find the right dose. About 198 participants who have tried o…

This study tests whether injecting a special solution (KRC-01) into rectal tumors before radiation can make the radiation work better. The solution increases oxygen inside the tumor, which helps radiation kill cancer cells. About 24 adults with advanced rectal cancer that hasn't …

This study tests a new drug called HDM2017 combined with standard treatment (fruquintinib) in 120 people with advanced colorectal cancer that has spread. The goal is to find the safest dose and see if the combination can shrink tumors. Participants must have tried other treatment…

This phase 2 trial is testing a combination of two targeted drugs (fruquintinib and serplulimab) plus chemotherapy as a first treatment for 80 people with advanced colorectal cancer that has RAS or BRAF mutations. The goal is to see if this mix can delay cancer growth and improve…

This early-phase trial is testing a new mRNA-based drug called YMN-A02 in 10 people with advanced colorectal cancer that has spread to the liver and has not responded to standard treatments. The drug is designed to help the immune system attack the cancer by producing a CTLA-4 an…

This Phase 3 trial tests whether giving chemotherapy directly into the liver artery (HAI) after surgery can prevent cancer from coming back in patients with colorectal cancer that spread to the liver. About 272 high-risk patients will receive either standard IV chemo or HAI chemo…

This phase II trial tests whether a stronger chemotherapy cocktail (cmFOLFOXIRI) plus an immunotherapy drug (PD-1 inhibitor) works better than standard chemotherapy (mFOLFOX6) when given before surgery for locally advanced colon cancer. About 138 patients with high-risk stage II …

This study tests whether treating children with uncomplicated appendicitis using antibiotics alone works as well as surgery. About 724 children aged 5 to 15 will be randomly assigned to receive either antibiotics or an operation. The goal is to see if the antibiotic approach lead…

This study tests whether giving patients special nutritional drinks and a tailored diet before and after colorectal cancer surgery can lower the risk of complications like infections and improve recovery. About 190 adults with colorectal cancer who are scheduled for minimally inv…

This phase 3 study tests whether a new drug called Enlituo, combined with chemotherapy (FOLFOX), works as well as the standard treatment Erbitux plus FOLFOX for people with advanced colorectal cancer that has specific genetic traits (RAS/BRAF wild-type and MSS/pMMR). About 608 ad…

This phase 2 trial tests whether adding the immune-boosting drug ivonescimab to standard chemotherapy (FOLFIRI) helps people with advanced colorectal cancer live longer without their cancer growing. It compares this new combination to the current standard of FOLFIRI plus bevacizu…

This early-stage study tests a new treatment called DCTY1102 for people with advanced cancers (like pancreatic, colorectal, or lung cancer) that have a specific genetic change (KRAS/NRAS G12D mutation) and a certain immune type (HLA-A*11:01). The treatment uses the patient's own …

This phase 2 trial tests a short course of radiation followed by a mix of chemotherapy, targeted therapy, and immunotherapy in 60 people with locally advanced rectal cancer. The goal is to see if this approach can make the tumor disappear completely before surgery, possibly allow…

This study tests a combination of three drugs—S-531011, fruquintinib, and pembrolizumab—in people with advanced colorectal cancer that has not responded to standard treatments. The cancer type is called MSS or pMMR, which typically does not respond well to immunotherapy alone. Th…

This study tests whether a new form of chemotherapy (liposomal irinotecan) combined with other drugs works better than standard irinotecan for people with metastatic colorectal cancer that has progressed after first-line treatment. About 408 adults aged 18 to 75 will be randomly …

This early-stage trial tests a personalized cancer vaccine called ODI-2001 in 77 people with advanced colon or pancreatic cancer that has spread or cannot be removed. The vaccine is custom-made for each patient's tumor and is given along with a drug that boosts the immune system.…

This early-stage study tests a new drug called SNA028 in 20 people with advanced colorectal cancer that has a specific marker (GPA33). The drug uses a two-step process to deliver radiation directly to cancer cells. The main goals are to check if it is safe and how the body handle…

This study tests a personalized radiation approach for locally advanced rectal cancer. By adjusting the radiation dose halfway through treatment based on a special MRI scan, doctors hope to increase the number of patients whose tumors completely disappear before surgery. The tria…

This study looks at whether adding a short course of chemotherapy after standard chemoradiation can improve outcomes for people with stage I rectal cancer, allowing them to keep their rectum instead of needing major surgery. About 292 participants will be randomly assigned to rec…

This study tests whether frozen stool capsules (fecal transplants) can help children aged 8-17 with ulcerative colitis stay in remission after steroid treatment. Participants will receive either capsules or enemas containing healthy donor stool. The main goal is to see if the cap…

This study tests whether a special omega-3-enriched nutritional drink can improve nutrition in people with advanced lung or colorectal cancer who are at risk of malnutrition. About 118 participants will either get the drink plus dietary advice, or just dietary advice alone. The g…

This study tests whether giving chemotherapy directly into the liver along with standard chemo pills and IV drugs can help prevent colorectal cancer from coming back after surgery to remove tumors from the liver. About 28 adults who have had successful surgery and show no remaini…

This trial compares a one-day course of antibiotics after appendix surgery to the standard five-day course in 200 children and adults with uncomplicated appendicitis. The goal is to see if the shorter course prevents infections just as well, while reducing side effects and costs.…

This study tests a combination of two types of radiation therapy for elderly or frail patients with rectal cancer who cannot or will not have surgery. The goal is to shrink or control the tumor while maintaining quality of life. Researchers will follow 80 participants for up to t…

This phase 2 trial tests whether injecting an oncolytic virus (H101) directly into liver tumors, along with radiation, chemotherapy, targeted therapy, and immunotherapy, can shrink or control colorectal cancer that has spread to the liver and cannot be removed by surgery. The stu…

This early-stage study tests a new treatment plan for people with stomach or colorectal cancer that has spread to the lining of the abdomen. The approach combines low-dose radiation to the whole abdomen with chemotherapy and an immunotherapy drug. The main goal is to check if the…

This Phase 2 trial tests whether E-CEL UVEC Cells, a type of genetically engineered cell, can treat perianal fistula—a painful tunnel that forms near the anus. The treatment involves injecting the cells directly into the fistula tract in a minimally invasive procedure. Researcher…

This Phase 1 trial tests a new drug called HLX05-N, which is a biosimilar (a copy) of the cancer drug Erbitux, in 387 people with metastatic colorectal cancer. Participants will receive either HLX05-N or Erbitux (from the US or EU) along with standard chemotherapy. The study aims…

This phase 3 trial tests whether short-course radiation followed by chemotherapy and an immunotherapy drug (serplulimab) works better than standard long-course chemoradiation for high-risk locally advanced rectal cancer. 612 patients will be randomly assigned to one of the two tr…

This phase 2 trial tests whether adding targeted radiation (SBRT) and an immunotherapy drug (sintilimab) to standard chemotherapy (TAS-102) and bevacizumab can help people with recurrent metastatic colorectal cancer live longer without their cancer growing. The study will enroll …

This study looks at whether older adults (60+) with ulcerative colitis who are in long-term remission can safely stop taking thiopurines (azathioprine or 6-mercaptopurine) and rely only on high-dose mesalazine. Thiopurines carry increased risks of infection and cancer with age, s…

This study tests whether daily adaptive radiotherapy (ART) can safely deliver shorter, more intense radiation treatments for prostate, endometrial, cervical, and rectal cancers. About 264 participants will be randomly assigned to standard radiation or ART, which uses daily imagin…

This study tests a drug called fruquintinib in 88 adults with advanced colon cancer that has not responded to standard chemotherapies. The goal is to see if adding supportive care to manage side effects can help patients live longer without their cancer growing. Participants will…

This study tests whether a targeted chemoradiotherapy can completely eliminate early-stage rectal cancer, allowing patients to avoid surgery and keep their rectum. 90 adults with small, localized tumors will either receive standard surgery or the new treatment followed by close m…

This Phase 3 trial tests whether a three-drug chemotherapy combination (FOLFOXIRI) works better than the standard two-drug combination (CAPOX/FOLFOX) for people with high-risk locally advanced rectal cancer. Both groups also receive chemoradiation, and then either surgery or a wa…

This phase II trial tests whether a special radiotherapy regimen followed by targeted therapy and immunotherapy can shrink tumors in people with advanced colorectal cancer that has not responded to prior treatments. About 33 participants will receive the treatment and be monitore…

This pilot study tests whether a device that delivers controlled heat (radiofrequency ablation) can safely close perianal fistulas—abnormal tunnels between the anal canal and skin. Eighty adults with certain types of fistulas will receive a single RFA treatment. Researchers will …

This study tests a drug called everolimus in people with advanced colorectal cancer that has a specific genetic change (CDK12 deficiency) and has not responded to other treatments. The goal is to see if the drug can shrink tumors or slow the cancer's growth. About 38 adults will …

This study tests giving an immunotherapy drug (pembrolizumab) before surgery to people with a specific type of colon cancer (dMMR). The goal is to see if the drug can shrink or eliminate the tumor so some patients may avoid surgery and instead be closely monitored. About 152 adul…

This study tests whether using stool biomarkers (fecal calprotectin and fecal immunochemical test) to guide treatment adjustments can prevent relapses in people with ulcerative colitis. About 240 adults in remission will be randomly assigned to either biomarker-guided therapy or …

This study tests whether giving immunotherapy drugs (nivolumab with or without ipilimumab) or immunotherapy plus radiotherapy before surgery can improve outcomes for people with a specific genetic type of colorectal cancer called MSI-H/dMMR. About 114 participants will be randoml…

This phase 2 trial is testing a new approach for people with stage II-III rectal cancer. It combines short-course radiotherapy that spares the tumor-draining lymph nodes with a PD-1 inhibitor (a type of immunotherapy). The goal is to see if this combination can lead to a complete…

This study tests whether adding the immunotherapy drug dostarlimab to standard chemotherapy (XELOX) after chemoradiation improves outcomes for people with locally advanced rectal cancer. About 270 participants will be randomly assigned to receive either the combination or chemoth…

This pilot study tests whether the antibiotic vancomycin can safely treat active ulcerative colitis in adults who also have primary sclerosing cholangitis, a liver condition. Fourteen participants will take vancomycin or a placebo for 4 weeks, with an optional 4-week extension. T…

This study tests whether a new drug called IP-001, injected into the liver after standard heat-based tumor destruction, can help prevent colorectal cancer from coming back. About 717 adults with colorectal cancer that has spread only to the liver will be randomly assigned to rece…

This study compares two standard radiotherapy approaches—short-course (1 week) and long-course (several weeks)—given before surgery to people with locally advanced rectal cancer. The goal is to see which one works better at shrinking tumors and is easier for patients to tolerate.…

This study compares a new drain fixation method (extra-peritoneal tunneling) to the standard method after rectal cancer surgery. About 596 participants will be randomly assigned to one of the two groups. The goal is to see if the new method reduces drain movement and improves the…

This study tests a new endoscopic technique called ESISD for removing large, flat precancerous growths in the rectum. It compares ESISD to the standard procedure (ESD) in 60 patients to see if it is faster, safer, and more cost-effective. The goal is to improve treatment for pati…

This study is testing whether adding an immunotherapy drug (PD-1 inhibitor) to standard chemoradiation can better shrink or eliminate tumors in people with locally advanced rectal cancer that has a high chance of coming back. About 30 participants will receive the combination tre…

This study tests a procedure called irreversible electroporation (IRE), also known as Nanoknife, to treat liver tumors that have spread from colorectal cancer. IRE uses short electrical pulses to destroy cancer cells while sparing nearby blood vessels and bile ducts. The trial wi…

This phase 2 trial is testing whether giving the drugs encorafenib and cetuximab again can help people with a specific type of advanced colorectal cancer (BRAF V600E-mutant) whose disease got worse after prior treatment with similar drugs. About 25 participants will receive the d…

This phase 2 trial tests a new approach for locally advanced rectal cancer: using MRI-guided, reduced-field short-course radiotherapy together with immunotherapy and chemotherapy before surgery. The goal is to shrink the tumor effectively while causing fewer side effects than sta…

This study tests a new type of day hospital for people with inflammatory bowel disease (IBD), like Crohn's disease or ulcerative colitis. In one visit, patients get blood tests, a doctor checkup, education on managing their condition, and optional workshops on diet or fatigue. Th…

Doctors usually send colorectal tissue to a lab and wait days for results. This pilot study tests a miniaturized device called MULTISCOPE that uses light-based imaging to tell healthy tissue from cancerous tissue in real time. Researchers will examine 30 tissue samples removed du…

This study tests whether an artificial intelligence (AI) system can help doctors spot more precancerous polyps and colorectal cancers during colonoscopy compared to standard procedures. Over 3,300 adults scheduled for screening or surveillance will be randomly assigned to AI-assi…

Many cancer trials require patients to have specific molecular markers, so researchers test large numbers of people to find the few who qualify. This study evaluates FATHOM, an AI system that reads clinical trial records and routine tumor slides to predict which patients carry th…

Researchers are testing whether artificial intelligence can assess colorectal cancer risk by analyzing facial features, tongue images, and exhaled breath. The study enrolls adults aged 18 to 80 who are scheduled for a colonoscopy, collecting their multimodal data before the proce…

This trial tests whether a laser-based imaging device can help surgeons assess blood flow in the bowel during rectal cancer surgery. About 100 adults with rectal cancer will have the laser imaging performed alongside standard fluorescence imaging. The goal is to see if the laser …

Colonoscopy helps doctors find and remove polyps that can turn into bowel cancer, but the right side of the bowel often stays dirty even after standard preparation, so polyps there can be missed. This trial tests whether giving a small sodium phosphate enema into the right colon …

Researchers at the University of British Columbia are collecting intestinal ultrasound images from adults, including healthy people and those with inflammatory bowel disease such as Crohn disease or ulcerative colitis. The goal is to build a computer program that can measure bowe…

This trial tests whether a new non-invasive device, called Body Surface Colonic Mapping, can accurately measure colon movement in children. The device uses a sticky pad with electrodes placed on the abdomen to detect electrical activity from the colon. Researchers will compare it…

This study focuses on American Indian communities, who face high colorectal cancer death rates. Researchers will test a program where a navigator helps clinics and patients schedule diagnostic colonoscopies within 60 days after a positive screening. The goal is to improve early d…

This trial tests two new imaging modes, VIST and SFI, during colonoscopy to see if they help doctors find and classify colorectal polyps better than standard white light. About 990 adults undergoing screening or surveillance colonoscopy will be randomly assigned to one of the thr…

This study tests whether an artificial intelligence model can use routine laboratory results and patient information to identify people at high risk for colorectal adenomas, which are precancerous polyps. The researchers will collect data from 400 adults undergoing colonoscopy an…

This trial is testing two new imaging tracers, called CM500, to see if they can help detect solid tumors anywhere in the body. The tracers are given by injection and then used with PET scans to create detailed images. The study includes healthy volunteers and people with various …

This study tests whether ratios of routine blood markers—like C-reactive protein-to-albumin and neutrophil-to-lymphocyte—can accurately tell if inflammatory bowel disease (IBD) is active or in remission. Adults with Crohn's disease or ulcerative colitis will have blood tests and …

This early study tests a new radioactive antibody called NTH-2403 in 16 people with advanced colorectal, head and neck, lung, or triple-negative breast cancers. The antibody targets a protein found on cancer cells and their supporting cells, allowing doctors to see tumors on scan…

This study investigates whether tiny particles shed by tumors into the blood, called extracellular vesicles, can serve as a non-invasive biomarker for metastatic colorectal cancer. Researchers will analyze blood samples from 290 patients at different treatment stages to see if th…

This study tests whether combining two stool tests—fecal immunochemical test (FIT) and fecal calprotectin (FC)—can accurately detect precancerous or cancerous changes in people with long-standing ulcerative colitis. Participants will provide stool samples and then undergo a speci…

This study tests whether annual liquid biopsies (from blood, urine, stool, and vaginal swabs) can safely replace colonoscopies every 18 months for people with Lynch syndrome. 2,000 participants will be split into two groups: one gets standard care (colonoscopy every 18 months), t…

This trial tests whether an AI system called GI Genius can help doctors accurately tell apart small colorectal polyps (5 mm or less) during a colonoscopy—identifying which ones are harmless versus those that need monitoring. For each small polyp, doctors first record their own di…

This trial is testing whether a breath analysis device can detect unique chemical patterns—called volatile organic compounds—that may signal the presence of cancer. Researchers will collect breath samples from 1,000 people with various cancers and 1,000 healthy volunteers, then u…

This trial explores whether betacyanin, a pigment found in beetroot, can help doctors detect anastomotic leakage — a serious complication where intestinal contents leak after rectal cancer surgery — earlier than current methods. About 120 people undergoing laparoscopic rectal can…

This study compares two imaging methods for checking blood flow to the bowel during colorectal surgery: the standard technique using a dye called indocyanine green (ICG) and a newer dye-free method called Laser Speckle Contrast Imaging (LSCI). About 30 adults having elective colo…

This study tests whether a partially digested whey formula can help doctors tell the difference between a non-allergic milk intolerance and a true cow's milk protein allergy in babies. Infants aged 1 to 6 months with digestive symptoms will receive the special formula. The goal i…

This study looks at whether a substance in urine, called PGE-MUM, can show if ulcerative colitis is active or in remission. Researchers will collect urine and blood samples from 114 adults with confirmed ulcerative colitis and compare the results with colonoscopy findings. If suc…

This study tests a new, non-invasive method to detect colorectal cancer and precancerous growths by analyzing odors from breath and intestinal gas. About 453 participants—including people with colorectal cancer, precancerous lesions, and healthy volunteers—will provide samples an…

This study compares a new 3D colonoscopy with the standard 2D version to see which more accurately identifies polyps that could become colorectal cancer. About 600 adults undergoing colonoscopy will have their polyps examined with both methods, and the results will be checked aga…

This study aims to see if a simple blood test can find HPV-related oropharyngeal cancer early in men aged 50 and older who have no symptoms. Researchers will check blood for two markers of HPV and then follow up with those who test positive to find and treat any tumors. If succes…

This study tests whether spraying a mix of acetic acid and indigo carmine dye during colonoscopy helps doctors find more precancerous polyps (called sessile serrated lesions) in the right side of the colon compared to standard white-light colonoscopy. About 2,689 adults aged 45-8…

This study tests a new device that flattens colon polyps before they are examined under a microscope. The goal is to help doctors better identify sessile serrated lesions, a type of polyp that can lead to colorectal cancer. About 1,156 adults having polyps removed during a colono…

This study tests a special ultrasound technique called contrast-enhanced subharmonic ultrasound to see if it can predict whether chemotherapy is working for colorectal cancer that has spread to the liver. Currently, doctors wait about 2 months for CT or MRI scans to see if tumors…

This study will compare two different PET/MRI scans to see which one is better at finding lymph node metastases in people with middle to high rectal cancer. Thirty participants will receive both types of scans before surgery. The goal is to see if the newer tracer, [68Ga]Ga-CTR-F…

This study tests whether a swallowable capsule camera (colon capsule endoscopy) can effectively screen for colorectal cancer in people with Lynch syndrome, a genetic condition that greatly increases cancer risk. Researchers will compare the capsule's ability to find polyps and ot…

This study will check how well MRI can find and map perianal fistulas before surgery. Thirty patients with suspected fistulas will get an MRI, and the results will be compared to what surgeons find during the operation. The goal is to see if MRI can help doctors plan better surge…

This study tests a simple 10-item checklist that parents can use during a video call to help doctors figure out if a child's belly pain is appendicitis. About 1,500 children aged 3 to 16 with stomach pain will try the checklist with a medical student, then get standard care. The …

This study aims to see if measuring two proteins in the blood, Talin-1 and Cripto-1, can help diagnose colorectal cancer. Researchers will compare these levels in 70 newly diagnosed patients and healthy people. The goal is to find a simpler, more accurate way to detect the diseas…

This study aims to improve how doctors classify colon tumors by using artificial intelligence (AI) to analyze CT scans. The AI will be trained to tell early-stage tumors from advanced ones and to detect lymph node involvement, which is key for deciding on treatments like chemothe…

This study aims to increase the number of Native Americans who get a follow-up colonoscopy after an abnormal home stool test. Colorectal cancer is a leading cause of cancer death, and Native Americans are affected more than others. Researchers will work with the community to crea…

This study will test whether an artificial intelligence system can detect minimal residual disease—tiny amounts of cancer left after surgery—and predict recurrence in 700 people with rectal cancer. The AI combines blood tests, genetic data, and scans to create a more complete pic…

This study compares a new DNA sequencing platform (MGI) against the current standard (Illumina) for diagnosing hereditary cancers like breast and ovarian cancer, Lynch syndrome, and intestinal polyposis. Researchers will analyze 248 patient samples using both platforms to see if …

Researchers are testing an experimental drug called INCA33890 in people with stage II or III colorectal cancer who have finished surgery and chemotherapy but still have tiny amounts of tumor DNA in their blood. This leftover DNA, called circulating tumor DNA or ctDNA, can signal …

Researchers are testing whether a nasal catheter that diverts stool from the small intestine can prevent leaks after surgery for mid to low rectal cancer. The trial compares this catheter approach with a standard protective ileostomy, a temporary opening in the abdomen to divert …

This trial tests a program where trained community members, called Colon Health Champions, lead discussions about colorectal cancer risk and screening barriers. The goal is to see if this peer-led approach is feasible and acceptable for adults aged 45 to 75 who are due for routin…

This Phase 2 trial tests whether psilocybin, a psychedelic compound, can prevent or lessen chemotherapy-induced peripheral neuropathy (nerve damage) in people with breast, colorectal, or head and neck cancer. About 83 participants will receive either psilocybin, a low-dose placeb…

This trial tests whether giving children a probiotic called Saccharomyces boulardii alongside a common antibiotic can prevent diarrhea, a frequent side effect. Children aged 6 months to 5 years with upper respiratory infections will receive either the antibiotic alone or the anti…

This study tests whether providing educational materials and mailing stool-based screening kits (FIT or Cologuard) to primary care patients can increase colorectal cancer screening rates. Participants aged 45-75 who are eligible for screening will be assigned to receive education…

This trial tests whether applying 5-ASA (mesalamine) directly to the ileal pouch after surgery for ulcerative colitis can prevent pouchitis—a painful inflammation that affects more than half of patients. Adults with UC who are scheduled for pouch surgery are randomly assigned to …

This early-phase trial tests a personalized vaccine made from a person's own immune cells (dendritic cells) loaded with cancer-specific markers. The goal is to train the immune system to recognize and destroy precancerous cells in people with Lynch syndrome, who have a high risk …

This pilot trial tests a community-based program designed to help Chinese immigrants aged 45-75 get up-to-date on colorectal and breast cancer screening. The program includes a group education session led by a community health worker and personalized help navigating the healthcar…

This early-stage trial tests whether a daily supplement called SAMe can help prevent colorectal polyps (precursors to colon cancer) in 18 adults who have already had surgery for early-stage colon cancer. Participants will take SAMe for up to a year while researchers monitor for s…

This study tests whether a multilevel screening program can increase colorectal cancer screening rates among Veterans aged 45-49, an age group now recommended for screening due to rising early-onset cases. Participants are randomly assigned to receive a patient education letter a…

This study tests whether a one-day health awareness campaign in community pharmacies can encourage more Malaysian adults aged 50 to 75 to get screened for colorectal cancer. Participants receive educational materials and one-on-one guidance about the disease and a simple home scr…

This study tests whether an AI-powered chatbot and smart reminders can encourage more high-risk adults aged 45 to 74 to get a colonoscopy, the best way to detect colorectal cancer early. About 1,680 participants will be split into two groups: one gets usual care, the other also g…

This phase III trial tests whether a vaccine made from a person's own immune cells can prevent cancer in 372 adults with Lynch syndrome, a genetic condition that raises cancer risk. Participants receive either the vaccine or a placebo and are monitored for tumor development. The …

This early-phase trial tests whether adding Ursodeoxycholic Acid (UDCA) to standard antibiotics can prevent Clostridioides difficile (C. diff) infection from returning. About 30 adults with C. diff and risk factors for recurrence will take UDCA three times daily for up to eight w…

This study tests whether wearing tight compression garments on hands and feet during chemotherapy can prevent nerve damage (peripheral neuropathy) caused by taxane or oxaliplatin drugs. About 358 breast and colorectal cancer patients will be randomly assigned to wear compression …

This study tests a gel called TAR-0520 to see if it can prevent hand-foot syndrome, a painful skin reaction caused by the chemotherapy drug capecitabine. About 25 people with breast or colorectal cancer will apply the gel to their hands twice daily for 12 weeks. Their feet will n…

This study tests whether the HPV vaccine can prevent the return of high-grade squamous intraepithelial lesions (HSIL) in people who have already been treated for them. About 984 adults aged 18–55 with HPV-related HSIL of the cervix, vulva, vagina, penis, or anus will receive eith…

This study tests whether a modified high-fiber version of the UK's EatWell diet can improve health markers linked to early-onset colorectal cancer. Two hundred adults in the UK will follow either the standard EatWell diet (30g fiber/day) or a modified version (40g fiber/day) for …

This trial tests whether having general practitioners (GPs) proactively give colorectal cancer screening kits to eligible patients (ages 50-74) increases screening rates compared to the usual practice of sending an invitation letter. Over 26,000 participants will be involved. The…

Researchers compare two surgical methods for removing an inflamed appendix in obese patients: laparoscopic (keyhole) surgery and traditional open surgery. The trial enrolls 166 obese adults with acute appendicitis, randomly assigning each to one of the two procedures. The main go…

A loose seton is a thread surgeons place through a complex anal fistula to keep it draining. This pilot study follows 50 adults who already have a polypropylene seton and whose surgeon decides, as part of routine care, to replace it with a braided polyester one. Researchers ask e…

This study tests a mobile app designed to help Black and Hispanic adults with inflammatory bowel disease (IBD) manage stress and improve their quality of life. The app teaches coping skills, mindfulness, and disease acceptance. Researchers want to see if the app is practical and …

This trial tests whether a personalized 6-month exercise program can reduce persistent fatigue in people with inflammatory bowel disease (IBD) who are in remission. Researchers will randomly assign 120 participants to either the exercise program or usual care. Fatigue levels are …

Colorectal cancer patients who live with a stoma often face stigma, social anxiety, and loneliness. Researchers are testing a six-week mindfulness and self-compassion program adapted for these patients. The pilot trial enrolls 20 adults who have finished active treatment and spea…

This study tests whether an 8-week mindfulness-based stress reduction (MBSR) program can lower stress and improve well-being in people with inflammatory bowel disease (IBD). Seventy adults with mild-to-moderate IBD will either take the MBSR course online or watch an educational s…

This trial tests a virtual mind-body group program for female survivors of colorectal and anal cancer who experience sexual well-being challenges. Participants join weekly group sessions with other survivors to learn coping skills for physical changes, social factors, and thought…

This study tests whether a 10-session virtual group psychotherapy program can help people with inflammatory bowel disease (IBD) who also have anxiety or depression. The therapy is adapted from a standard manual called Mind Over Mood and includes education on the brain-gut connect…

This study tests two online pain education programs for adults with Crohn's disease or ulcerative colitis who have chronic pain. Participants will complete a 2-hour online session and report their pain and quality of life weekly for 8 weeks. The goal is to see if these programs a…

This trial tests whether a structured art therapy program, grounded in positive psychology, can improve self-compassion and hope in children aged 8 to 12 who are staying in a hospital ward. Half of the 80 participants will receive the art therapy sessions alongside standard nursi…

This study tests whether an AI-powered program can help older adults with serious illnesses like cancer or heart disease manage emotional distress. Participants receive short videos and daily check-ins from a chatbot that teaches practical coping skills, all from their own phone.…

This trial tests whether mind-body practices like breathwork, meditation, and gentle yoga can improve quality of life, stress, and sleep in people who have recently finished cancer treatment. Participants will practice these techniques weekly for six weeks while wearing an activi…

This phase III trial tests whether a daily probiotic supplement, OXXYSLAB®, can reduce peripheral neuropathy—nerve damage causing pain and numbness—in people with stage III colon cancer receiving oxaliplatin-based chemotherapy (FOLFOX or XELOX). About 130 participants will take e…

This study tests whether a special liquid diet (elemental diet) can help adults with inflammatory bowel disease (IBD) feel better during a flare. The diet provides all nutrients in an easy-to-digest form. Researchers will track symptom changes and inflammation levels in 42 outpat…

This trial compares two standard gas pressures used during laparoscopic appendectomy — 10 mmHg versus 15 mmHg — to see which leads to less pain and faster recovery. About 150 adults with uncomplicated appendicitis will be randomly assigned to one pressure level. Researchers will …

This study tests whether Shouhui Tongbian Capsules, a traditional Chinese herbal medicine, can relieve constipation after surgery for benign anal or rectal conditions like hemorrhoids. 120 adults will be randomly assigned to take either the herbal capsules or a standard laxative …

This trial investigates whether gentle abdominal massage, performed early after colon cancer surgery, can help the intestines start working again more quickly. Many patients experience a temporary slowdown in gut function (postoperative ileus) that causes bloating, pain, and naus…

This study investigates whether a traditional Chinese mind-body practice called Baduanjin Qigong, combined with standard exercises, can improve muscle strength and quality of life in adults aged 35–55 with colorectal cancer who are undergoing chemotherapy. Participants will take …

This study tests whether the powder used to clean the bowel before a colonoscopy can be taken as vegan capsules instead of mixing it into a liquid drink. Adults aged 18 to 75 who have had a prior colonoscopy will swallow many capsules with clear fluids. Researchers will check if …

This study looks at whether starting trans-anal irrigation (a procedure that uses warm water to help empty the bowel) within three months of stoma closure reduces daily bowel movements more than starting later. The trial involves 250 adults who have had rectal cancer surgery and …

This study tests whether taking high doses of vitamin E and CoQ10 daily for 90 days can reduce chronic side effects from pelvic radiation in people treated for prostate, uterine, cervical, or anal cancer. Researchers will monitor safety, side effects, and quality of life in 200 a…

This study tests whether an artificial intelligence-based dietary care app can reduce distress from bowel changes and improve quality of life in rectal cancer patients who have had anal-preserving surgery. One hundred participants will be randomly assigned to either standard diet…

This study tests whether a short liquid diet followed by a low-sulfur eating plan is safe and helpful for people with mild to moderate ulcerative colitis. Researchers will check if this approach improves gut health, lowers inflammation, and eases symptoms. They will also use brea…

This study tests whether letting patients give themselves sedation medication (propofol) by pressing a button during a colonoscopy leads to higher satisfaction than standard sedation given by a doctor. About 40 adults scheduled for colonoscopy will be randomly assigned to either …

This study tests a 6-week health behavior program for 40 colorectal cancer patients who are at least 3 months past surgery. The program uses counseling and support to encourage healthy habits like diet and exercise. Researchers want to see if it's practical and helps improve pati…

This study tests a 4-week AI chatbot program called AI-EGG that teaches emotional skills to young and middle-aged colorectal cancer survivors. The goal is to see if it helps them build resilience and improve quality of life. Fifty-four participants will be randomly assigned to ei…

This study tests whether a 12-week exercise program, delivered via Zoom, is practical and helpful for older adults (65+) with cancer who live in rural areas. Participants will do two supervised exercise sessions per week. The goal is to see if the program improves quality of life…

This study tests whether combining two ultrasound-guided nerve blocks (transversus abdominis plane block and rectus sheath block) can better control pain and speed recovery after robotic colon cancer surgery. About 90 adults having their first robotic colectomy will receive the b…

This study tests whether a home-based exercise program can help people with gastrointestinal or lung cancer handle chemotherapy better. Up to 120 participants will be randomly assigned to either an aerobic and resistance exercise group or a stretching group. All activities are do…

This study tests whether an AI-enhanced virtual reality cognitive behavioral therapy (VR/AI CBT) program can reduce anxiety and improve quality of life in people with inflammatory bowel disease (IBD). Seventy-six adults with IBD and moderate-to-severe anxiety will be randomly ass…

This study develops and tests a support program for cancer survivors who worry about their cancer returning. 150 adults who finished treatment for breast, head and neck, colon-rectal, or prostate cancer will join. Depending on their level of fear, they will receive education, psy…

This study tests whether transplanting healthy gut bacteria (fecal microbiota transplantation) can help advanced cancer patients who are losing weight and appetite—a condition called cachexia. About 66 adults with stomach, colorectal, or lung cancer will receive the treatment. Th…

This study tests a web-based program designed to help advanced cancer patients manage symptoms like depression, pain, fatigue, and sleep problems, while also supporting their caregivers. The program combines online tools with guidance from healthcare professionals. Researchers wi…

This study tests whether electroacupuncture can help bowel function return faster after minimally invasive colorectal cancer surgery. 240 adults will be randomly assigned to receive real acupuncture, sham acupuncture, or standard care. The main goal is to see how quickly patients…

This study tests whether a supervised exercise program, started two weeks before chemotherapy and continued for 16 weeks during treatment, can help adults aged 35 to 65 with breast, lung, or colon cancer tolerate chemotherapy better. The goal is to see if participants can receive…

This study tests whether a supervised strength-training program is safe and practical for people with locally advanced rectal cancer who are receiving chemotherapy and radiation before surgery. Fifteen participants will do personalized resistance exercises twice a week for about …

This study tests whether giving lidocaine through a vein during surgery, plus injecting ropivacaine into the surgical cuts, helps people recover better after laparoscopic colon cancer surgery. About 182 adults will be randomly assigned to get either the lidocaine plus ropivacaine…

This study will test a one-day acceptance and commitment therapy (ACT) program for 50 veterans who have both inflammatory bowel disease (IBD) and a mental health condition like depression, anxiety, or PTSD. The goal is to see if this brief therapy can improve their quality of lif…

This study looks at whether exercise can lessen nerve damage caused by certain chemotherapy drugs. About 140 people with colorectal or gynecologic cancer will either exercise or receive usual care. Researchers will measure nerve function, blood markers, and quality of life to see…

This study tests a support program called FamCASP for adult family members of people with colorectal cancer. The program includes a digital screening tool and counseling to help families cope better. Researchers will compare families who get the support with those who don't, meas…

This study tests whether a special imaging mode called RDI helps doctors remove early-stage cancers from the stomach, esophagus, or colon more quickly and safely than standard white-light endoscopy. About 158 adults with early cancers or precancerous lesions will be randomly assi…

This early study tests whether selpercatinib, a drug already used for certain cancers, can help with cachexia (severe weight loss and appetite loss) in people with advanced lung, colon, or pancreatic cancer. Seven participants will take the drug twice daily for 12 weeks, with reg…

This study tests whether modafinil, a drug used for narcolepsy, can reduce severe fatigue in people with Crohn's disease or ulcerative colitis. About 70 participants will receive either modafinil or a placebo for 12 weeks. The main goal is to see if a larger trial is possible, bu…

This study tests a highly absorbable form of curcumin (from turmeric) in 72 adults with mid-to-low rectal cancer who are getting chemoradiation before surgery. The goal is to see if curcumin can reduce severe gut side effects like diarrhea and rectal pain. Researchers will also c…

This study tests whether injecting platelet-rich plasma (PRP) into the wound after fistulotomy surgery for simple anal fistula can speed healing and reduce pain. About 70 adults aged 18-65 with simple low anal fistulas will be randomly assigned to get either standard surgery plus…

This study is building a new questionnaire to measure how well people with inflammatory bowel disease (IBD) take care of themselves. Researchers will talk to 275 adults with Crohn's disease or ulcerative colitis to understand their self-care habits, then test the questionnaire to…

This study will follow 100 adults with Crohn's disease, ulcerative colitis, or other IBD, plus their healthy relatives, for up to 3 years. Researchers will collect blood, stool, tissue samples, and imaging to track how immune cells and genetics change over time. The goal is to fi…

Researchers are observing 300 adults aged 60 and older with inflammatory bowel disease who are starting an advanced therapy chosen by their usual care team. The study tracks immune-aging markers such as CD4/CD8 ratio and IL-6, along with frailty and nutrition, over 52 weeks. The …

This observational study gathers information from routine care on how localized rectal cancer is treated across Austrian hospitals. It aims to document the variety of treatment approaches, including total neoadjuvant therapy and immunotherapy, and their outcomes. By analyzing thi…

This pilot study looks at whether it is safe to stop giving antibiotics after surgery for a burst (perforated) appendix. About 100 adults will be randomly assigned to receive either antibiotics or no antibiotics after their operation. The main goal is to see if a larger study is …

Researchers are testing whether blocking three inflammation pathways at once (TL1A, IL-23, and α4β7) calms inflamed intestinal tissue more effectively than blocking each pathway alone. The study enrolls 30 people: 10 with ulcerative colitis, 10 with Crohn's disease, and 10 withou…

This study looks at how anxiety, depression, and stress might cause advanced IBD treatments to stop working. Researchers will ask 450 people with IBD to fill out questionnaires about their mental health while they receive regular infusions. The goal is to understand if mental hea…

This study aims to develop a method using advanced MRI scans to predict whether rectal cancer has been completely eliminated after chemoradiation. About 115 patients will be enrolled to test the accuracy of this MRI-based prediction. If it works, some patients might safely avoid …

Researchers at Assiut University Children Hospital are comparing conventional and biologic therapies in children and adolescents with inflammatory bowel disease, including Crohn's disease and ulcerative colitis. The study tracks about 100 patients to measure clinical remission at…

This study is exploring whether a rapid, non-invasive stool test can help monitor inflammatory bowel disease (IBD) in children. The test uses a technology called differential mobility spectrometry (DMS) to analyze the molecular profile of stool samples. Researchers will compare t…

Rectal cancer treatment can involve chemotherapy, radiation, surgery, or watch-and-wait surveillance, and each can affect bowel, urinary, sexual, and stoma function. Most studies measure quality of life at a single point or after one type of treatment, leaving gaps in how patient…

Researchers are testing a visual sampling capsule that collects fluid from different parts of the intestine without surgery. They will use it in 250 people, including those with active or remission Crohn's disease or ulcerative colitis, plus healthy volunteers. By analyzing the m…

This study looks at whether showing AI suggestions a few seconds later helps doctors make better decisions when diagnosing small colon polyps. Seventy endoscopists will watch 100 polyp videos, with some seeing AI advice right away and others seeing it after a delay. The goal is t…

This study investigates whether the bacteria living in the gut influence the development of diverticular disease and acute diverticulitis. Researchers will compare the gut microbiota of people with and without these conditions to identify differences and risk factors. The goal is…

Researchers at Assiut University are studying how nutrition, diet-related inflammation, and blood markers relate to disease activity in people with inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis. The study will enroll 100 adults aged 18 to…

Researchers at National Taiwan University Hospital are looking back at records of adults who came to the emergency department with right-sided belly pain and were diagnosed with either epiploic appendagitis or diverticulitis. They will compare symptoms, lab results, and CT and ul…

Researchers at Fudan University are testing whether an artificial intelligence tool can score bowel preparation quality by measuring fecal coverage during colonoscopy. The study enrolls 560 adults aged 45 to 75 who have not had a colonoscopy in the past three years. The goal is t…

This trial tests whether people living with HIV can collect their own anal swabs for anal cancer screening, compared with swabs taken by a clinician. About 700 participants in Australia will provide both types of swabs, which will be checked for high-risk HPV and precancerous cel…

This study tests a new short camera called a rectoscope to check the lower bowel after rectal tumour removal. The goal is to see if it can be used in the clinic with a simple enema instead of strong bowel prep, making follow-up checks faster and reducing waiting lists. Thirty pat…

This study looks at whether offering a simple take-home colon cancer test (FIT kit) at local pharmacies can increase screening rates. About 1,500 patients and pharmacy staff will take part. The goal is to see if this approach is practical, affordable, and effective at catching ca…

This study tests an online tool called 'Let's Talk' designed to help people with Lynch syndrome encourage their relatives to get screened for the condition. Lynch syndrome is a genetic disorder that raises cancer risk, and only about half of close relatives currently get tested. …

This study looked at nearly 24,000 older adults (65+) with ulcerative colitis or Crohn's disease to see if certain advanced treatments lead to more infections. Researchers compared patients taking ENTYVIO, TNF-alpha inhibitors, or ustekinumab using Medicare claims data from 2016 …

This study tests a program to help people with inherited cancer gene mutations (like BRCA or Lynch syndrome) stick to recommended cancer screening schedules. Researchers will interview 80 female participants and provide standard care to see if this approach improves adherence and…

This study will follow 110 adults in Poland with metastatic colorectal cancer (cancer that has spread) who are taking fruquintinib after at least two prior treatments. Researchers will track how long patients live without their cancer getting worse and their overall survival, usi…

This study looks at people who had surgery for advanced lower rectal cancer, comparing two procedures: one that removes the rectum and anus (requiring a permanent stoma) and one that removes the rectum but keeps the anus (with a reconnection). The goal is to see which approach le…

This study looks at whether a combination of immune cell activity, genetic changes, and imaging features can help predict if colorectal cancer that has spread to the liver will come back after surgery. Researchers will analyze tumor tissue, blood samples, and scans from about 210…

This study asks whether an artificial intelligence system can make the same care recommendations as a team of cancer experts for people with stomach, colon, or rectal cancer. About 69 participants will have their medical information reviewed independently by both the AI and a mul…

This phase 2 trial tests whether a highly sensitive blood test (ctDNA) can help manage treatment for 200 people with early-stage rectal cancer. After standard chemotherapy and radiation, some patients will have their treatment guided by the blood test results instead of immediate…

This study investigates why children with inflammatory bowel disease (IBD) have an overactive immune response in the gut, and whether blood stem cells can be engineered to restore tolerance. Researchers will analyze blood and intestinal tissue samples from 80 children with IBD, w…

This study aims to develop a diagnostic model that predicts the risk of colorectal cancer and advanced polyps in adults aged 18 to 80 who are already scheduled for a routine colonoscopy in China. Participants fill out a questionnaire about their lifestyle, medical history, and sy…

This lab study tests whether a cell-free mixture of molecules and particles released by human amniotic mesenchymal stromal cells can reduce inflammation, prevent scarring, and promote healing in gut tissue from people with inflammatory bowel disease (Crohn's disease or ulcerative…

People with inflammatory bowel disease (Crohn's disease or ulcerative colitis) have a higher risk of developing colorectal cancer. This study follows 800 adults with IBD who need a screening colonoscopy to look for precancerous growths called dysplasia. Researchers aim to underst…

This study looks at 3,000 people who had surgery for colorectal cancer to see how often polyps come back in the colon afterward. Researchers will check if the type and stage of the original cancer are linked to polyp recurrence. The goal is to improve follow-up care by identifyin…

This study investigates whether a special 3D MRI scan, called magnetic resonance elastography (3D-MRE), can detect microscopic tumor remnants at the surgical margin after liver cancer removal. Current methods only examine the removed tissue, not the remaining liver. Researchers w…

This study investigates whether two blood-based biomarkers—circulating tumor DNA (ctDNA) and tumor-educated platelets (TEP)—can predict how well colon cancer responds to pre-surgery therapy. About 80 adults with stage III colon cancer will provide extra blood samples before, duri…

This study looks at why some people have more pain than others after colorectal surgery. Researchers will test pain sensitivity, analyze blood for inflammation, and ask about emotional health and life stress. The goal is to find better ways to manage pain and prevent long-term di…

This study looks at how certain cancers develop in people with HIV and what factors might increase their risk. Researchers will analyze medical data from 1,000 HIV-positive adults to track which types of cancer occur most often and why. The goal is to improve early detection and …

This study aims to find the best text messages to remind people to complete at-home colorectal cancer screening. Researchers will work with 7,220 adults aged 45-75 at community health centers. They will test different message versions to see which ones lead to more screening and …

This study investigates why colorectal adenomas (precancerous polyps) sometimes return after being surgically removed. Researchers will collect tissue samples from 30 patients and use advanced genetic sequencing to compare polyps that recur with those that do not. The goal is to …

This study is testing whether a blood test can locate where colorectal cancer has returned or spread after surgery. Researchers are analyzing genetic markers in the blood to build a model that predicts whether a recurrence is local or distant. The goal is to improve early detecti…

This study looks at medical records from thousands of adults with Crohn's disease or ulcerative colitis treated in Dutch hospitals between 2018 and 2026. Researchers will analyze which treatments patients receive, how often they switch therapies, and how the disease affects other…

This study investigates whether acupuncture points become tender or more sensitive in people with inflammatory bowel disease (IBD), such as Crohn's disease or ulcerative colitis. Researchers will compare skin temperature, blood flow, and pain sensitivity at specific body points b…

This study looks at people who have had certain types of colon polyps (serrated lesions) removed. It aims to find out why some of them later develop new advanced growths in the colon. By tracking 750 adults over time, researchers hope to identify risk factors that could help doct…

This study explores whether combining artificial intelligence analysis of tumor tissue with special blood tests (liquid biopsy) can more accurately predict if colon cancer will return after surgery. Researchers will follow 400 adults with stage II or III colon cancer for up to fi…

This study explores whether changes in heart rate, sleep, and activity measured by a person's own smartwatch can predict flare-ups in inflammatory bowel disease (IBD). Six hundred adults with Crohn's disease or ulcerative colitis who already own a compatible device will participa…

This study will follow 120 women having surgery for common anal conditions like fissures, hemorrhoids, or fistulas. Researchers want to see if their sexual function improves after surgery. Participants will fill out questionnaires before surgery and at 3 and 6 months after. The g…

This study looks at people with inflammatory bowel disease (IBD), including ulcerative colitis and Crohn's disease, to better understand their risk of serious heart problems like stroke and heart attack. Researchers will collect information on therapy, disease activity, lifestyle…

This study follows about 2000 people with colorectal cancer to track their health over time, including survival, disease progression, and side effects from treatments. Researchers aim to understand how the disease behaves in real-world settings, outside of controlled clinical tri…

This study will follow 100 people with severe obesity who are starting a GLP-1 drug (like Ozempic or Wegovy) to see if it causes new anal or rectal problems within the first 3 months. Participants will have a check-up before starting the drug and again after 3 months to look for …

This study looks at whether it's safe to skip mechanical bowel preparation (the drink that cleans out your colon) before colon surgery. Currently, the best practice combines that drink with antibiotics to prevent infections. The trial will compare two groups: one getting the drin…

This study tests a new surgical method for removing the splenic flexure during laparoscopic surgery for left-sided colorectal cancer. It compares the new technique (inferior mesenteric artery first with complete medial approach) to traditional methods. The goal is to see if it is…

This study will send different types of WhatsApp messages to 235,000 people in Chile who are due for cancer or chronic disease screenings. Researchers want to see if the way a message is worded (basic, risk-focused, or peace-of-mind) and whether it mentions one test or both tests…

This study will follow 57 people having minimally invasive colon surgery where the removed tissue is taken out through the rectum instead of a new abdominal cut. Researchers want to see how often this technique injures the internal anal sphincter muscle and how it affects bowel c…

This study tests whether watching a short video tailored to their specific type of inflammatory bowel disease (IBD) helps patients better prepare their bowel for a colonoscopy. About 600 adults with ulcerative colitis or Crohn's disease will be randomly assigned to receive either…

This observational study will collect detailed information from 150 adults undergoing emergency surgery for complicated diverticulitis. Researchers will analyze factors that influence surgeons' decisions to perform either a primary anastomosis (reconnecting the bowel) or a Hartma…

This study will follow 200 people with colorectal cancer and healthy controls to explore how genes, blood sugar, and immune responses are connected. Researchers will analyze blood and tissue samples to find shared genetic factors that may influence both cancer and diabetes. The g…

This study is testing whether a green dye called indocyanine green (ICG) can help surgeons see and remove lymph nodes that contain cancer during laparoscopic colon cancer surgery. About 25 adults with colon cancer will receive the dye injected around the tumor and into a vein. Th…

This study looks at whether the type of stapler used to reconnect the bowel after colorectal cancer surgery affects the risk of a leak. About 600 adults having planned surgery will be observed, but their treatment won't change. The goal is to see if newer staplers are safer than …

This study looks at where cancer spreads to lymph nodes in people with colon or rectal cancer. Researchers will examine tissue from 1200 patients who had surgery to remove their cancer. The goal is to find patterns that could help doctors better plan treatment in the future.

This study looks at how often polyps in the stomach or colon grow back after being removed during a scope procedure. Researchers will follow about 2,000 adults for up to three years to track recurrence and identify risk factors like polyp size, lifestyle, and health history. The …

This study will test a new way to create CT images for people with colon cancer. The method uses deep learning to make the images clearer. Researchers will compare the quality of these new images to standard ones. The goal is to see if this technique helps doctors see tumors bett…

This study tests whether training healthcare providers to reduce stigma can increase the use of HIV and STI prevention services, like testing and preventive medications. It will involve 8 clinics in the Mississippi Delta and track changes in how often patients receive these servi…

This study will collect blood samples from 1,000 people with small colon growths to see if a liquid biopsy can accurately tell benign from malignant lesions and predict cancer spread to lymph nodes. Current methods often lead to unnecessary surgery. The goal is to create a bioban…

This study looks at how decision counseling affects people who get a positive result on the Shield blood test for colorectal cancer. Researchers want to see if counseling helps reduce confusion and increases the chance of getting a follow-up colonoscopy. About 350 adults aged 45-…

This study is a registry that collects medical information and biological samples from up to 100,000 people with gastrointestinal cancers, such as pancreatic or colorectal cancer. No new treatments or drugs are given. The goal is to gather real-world data to help researchers answ…

This study follows 75 adults with Crohn's disease or ulcerative colitis who are starting guselkumab, a drug used for inflammatory bowel disease. Researchers want to see if the drug also helps with joint pain and stiffness linked to spondyloarthritis. Participants will report symp…

This study will check if people with Lynch syndrome, a genetic condition that raises cancer risk, have more gum disease than the general population. Researchers will look at dental records from 25 adults with Lynch syndrome. The goal is to see if gum disease is a hidden health is…

This study will compare treatment recommendations made by a large language model (AI) with those made by a team of cancer experts for 180 people with rectal cancer. The AI will analyze de-identified patient information and suggest a treatment plan. The goal is to see how often th…

This study looks at adults with severe constipation and an enlarged rectum (idiopathic megarectum) to see if the problem started in childhood. Researchers will compare 120 participants—some with the condition and some without—by asking about their early-life digestive health and …

This study aims to see if a new, simpler tool called CRIS can help doctors better predict which large colon polyps contain cancer. About 764 patients and many endoscopists will take part, comparing the new score to an existing one. The goal is to make cancer risk assessment easie…

This observational study looks at how histidine, a common amino acid, and its transporter SLC15A3 influence colorectal cancer's sensitivity to immunotherapy. Researchers will analyze tumor tissue and blood samples from 150 patients to understand why some cancers resist treatment.…

This study will test whether an artificial intelligence (AI) system can help doctors identify inflammatory bowel disease (IBD) earlier and more accurately. Researchers will analyze medical records from 4,500 patients to see how well the AI's suggestions match actual diagnoses. Th…

This study looks at whether tumor DNA found in blood or peritoneal fluid can predict the spread of digestive cancers (stomach, colon, pancreas) to the lining of the abdomen. Researchers will follow 300 patients with early-stage tumors to see if those with positive DNA markers are…

This study looks at adults who had a C. diff infection and were treated with either a fecal transplant (FMT) or antibiotics alone. Researchers want to see if FMT leads to healthier gut bacteria and fewer health problems years later. Participants will give blood, stool, and urine …

This observational study follows 200 patients with colorectal cancer whose liver tumors are found at the same time as the primary cancer. Researchers will compare one-step surgery (removing both tumors at once) versus staged operations (bowel first or liver first) to see which ap…

This study looks at whether a special decision aid helps patients with a cancerous colon polyp choose between more surgery or careful monitoring. About 110 adults in Denmark will use the aid during their doctor visit. The goal is to see if it changes treatment choices and improve…

This study will look at tumor samples and health records from 300 people who had surgery for rectal cancer. The goal is to find patterns in the tumor's immune environment that can predict which patients will respond well to chemotherapy or immunotherapy. This could help doctors i…

This study will give fecal transplants to 90 people with recurrent C. difficile infection, ulcerative colitis, or metabolic syndrome. Researchers will use advanced tests on stool and tissue samples to track how donor bacteria settle in the gut and interact with the host. The goal…

This study will collect information from 2,000 adults having colorectal surgery with the Hugo RAS robot. Researchers will track complications, recovery, and long-term outcomes to see how safe and effective the system is. The goal is to provide real-world evidence to improve minim…

This study follows 42 women with HPV-positive pelvic cancer (cervix, vagina, vulva, or anus) to understand how radiotherapy, with or without surgery, affects their sexual quality of life. Participants complete questionnaires about sexual function and emotional distress over time.…

This study will examine 100 patients with lower gut symptoms like chronic diarrhea, blood in stool, or abdominal pain who are having a colonoscopy. Researchers want to see which types of colon inflammation (colitis) are most common and how they appear during the procedure. The go…

This study looks at why colorectal cancer spreads to the liver. Researchers will collect tumor samples from 156 patients during surgery to study a protein called SMYD3. They believe SMYD3 helps cancer cells survive and grow in the liver by changing how cells use energy and handle…

This study will enroll 210 people scheduled for colorectal cancer surgery. Researchers will collect data from wearable devices, continuous glucose monitors, and blood protein tests to see if they can better predict who will have complications after surgery. The goal is to improve…

This study looks at whether giving fish oil nutrition before colon surgery helps patients with constipation recover better. About 306 adults will either get fish oil before surgery or only after. Researchers will compare complication rates, recovery, and quality of life. The goal…

This study will test two different imaging techniques to help surgeons see blood flow in the bowel during surgery for colorectal cancer. About 150 adults having a specific type of colon surgery will be included. The goal is to see which method works best to guide surgical decisio…

This study will collect data from 10,000 patients across Saudi Arabia who undergo emergency abdominal surgery (laparotomy). Researchers will track complications and deaths within 30 and 90 days after surgery. The goal is to understand current care quality, test international risk…

This study tests whether a prepackaged low-residue diet (Colobox) helps clean the colon better than just following oral and written instructions before a colonoscopy. Around 230 adults will be randomly assigned to one of two diet plans for 24 hours before the procedure. The goal …

This study will enroll 5,500 average-risk adults in Texas to see if offering a blood test for colorectal cancer, along with an educational smartphone app, increases screening rates. Participants can choose the blood test, and some will get the app to help them follow up. The goal…

This study will analyze tumor samples from 50 women with advanced or recurrent endometrial cancer to find biological markers that predict whether immunotherapy will work. Researchers will examine the tumor's DNA, epigenetics, and surrounding environment. The goal is to better und…

This study looks at two ways to remove rectal cancer tumors. The newer method removes the tumor through the anus, avoiding extra cuts in the belly. The goal is to see if this leads to fewer wound problems and less pain after surgery. The study will review records from 190 adult p…

This study tests whether fluorescent dyes attached to two IBD drugs (adalimumab and risankizumab) can show where the drugs go in the gut. 30 adults with ulcerative colitis or Crohn's disease will receive a low dose of the labelled drugs, then undergo a special camera procedure 2-…

This study looks at whether doctors are properly reporting small cancer spots called tumor deposits in people with rectal cancer. These spots can show if the cancer is more aggressive and might need extra treatment like chemo or radiation. Researchers will compare reports from be…

This study looks at whether a simple intestinal ultrasound can accurately measure disease activity in people with active ulcerative colitis, compared to the standard colonoscopy. Researchers will enroll 200 adults with active UC to see if the ultrasound scores match the colonosco…

This study tests whether using the 'teach-back' method—where patients repeat back what they've learned—improves understanding and reduces readmissions after same-day anal fistula surgery. Half of the 76 participants will get this interactive education, while the other half receiv…

This study looks at whether measuring visceral fat (belly fat) using CT scans can predict how well ulcerative colitis patients respond to biologic therapy. Researchers will follow 200 adults with active ulcerative colitis for 6 months, tracking changes in fat volume and treatment…

This study looks at 38 women who had pelvic side effects (like pain in the rectum, bladder, or vagina) after radiation or chemotherapy for gynecological cancers. Researchers will compare their gut bacteria to healthy controls and see if rectal ozone therapy changes the microbiome…

This study will check how common Helicobacter pylori infection is in 100 adults with inflammatory bowel disease (Crohn's or colitis) at the Guadeloupe hospital. Researchers will take extra stomach biopsies during routine endoscopy to study the stomach's bacteria. The goal is to s…

This study looks at how a personalized strength training program affects people with different cancers, including lung, colon, breast, and blood cancers. 150 adults will either do supervised strength training plus home exercises, or just home exercises, for 12 weeks. Researchers …

This study looks at how the bacteria in the gut and mouth relate to nutrition in 150 adults with digestive cancer starting chemotherapy. Researchers will collect stool and saliva samples, along with questionnaires and tests, before and after the first chemo cycle. The goal is to …

This study looks at the viruses (called bacteriophages) living in the guts of people with inflammatory bowel disease (IBD) and healthy people. Researchers want to understand how these viruses differ and whether they can be grown in a lab to create a new treatment. The study invol…

This study will follow 100 people who need a stoma (an opening in the belly to pass stool) after surgery. Some will have their stoma site marked and get education before surgery, while others will not. The goal is to see if these steps improve quality of life and reduce problems …

This study compares a newer imaging method called TXI with standard dye-based imaging during colonoscopies in people with inflammatory bowel disease (IBD). The goal is to see which method better detects precancerous changes that can lead to bowel cancer. About 242 adults with IBD…

This study creates a registry of 500 cancer patients receiving immunotherapy to better understand and manage immune-related side effects (irAEs). Researchers will collect data on who gets these side effects, how they present, and what treatments work best. The goal is to improve …

This study will test a tool that helps doctors decide whether colorectal cancer screening is appropriate for adults over 75 based on their life expectancy. Researchers will develop a life expectancy model and then give doctors alerts in the electronic health record. The goal is t…

This study looks at whether taking a daily vitamin D supplement (2000 IU) for 12 months can improve the health and quality of life of people with Crohn's disease or ulcerative colitis. Researchers will track how well participants stick to the supplement and measure their vitamin …

This observational study will follow 4500 adults with Crohn's disease or ulcerative colitis to identify biological markers—such as gut bacteria patterns—that predict disease progression and complications. Researchers will collect blood, stool, saliva, and tissue samples during ro…

This study tests whether data from a wearable device and grocery loyalty cards can help detect disease flares in people with Crohn's disease or ulcerative colitis. Eighty adults will wear a smartwatch and use a store card to track their health and food purchases. The goal is to d…