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52 clinical studies listed.

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Colorectal Adenocarcinoma

Tundra lists 52 Colorectal Adenocarcinoma clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT07143487

Family Communications After Genetic Testing

This clinical trial compares patient (proband)-mediated communication to provider-mediated communication for improving genetic testing in first-degree relatives of patients with newly diagnosed colorectal cancer. It is estimated that 30% of cases of colorectal cancer have a genetic basis and about 15% of these patients have a disease-causing (pathogenic) inherited (germline) variant in a cancer susceptibility gene. Most individuals carrying a pathogenic germline variant are unaware of their cancer risk and may not meet guidelines for genetic testing. Identifying pathogenic germline variants or hereditary cancer syndromes in cancer patients has important implications for their at-risk relatives who may not know that they are at high risk for cancer. The burden of communicating this risk to first-degree relatives often falls on the patients, who may lack sufficient knowledge to correctly share and explain their genetic test results. Receiving provider-mediated communication of genetic testing results may be more effective at communicating genetic risk to first-degree relatives than the usual practice of proband-mediated communication.

Gender: All

Ages: 18 Years - Any

Updated: 2026-11-03

33 states

Colon Adenocarcinoma
Colorectal Adenocarcinoma
Rectal Adenocarcinoma
+12
SUSPENDED

NCT04111172

A Vaccine (Ad5.F35-hGCC-PADRE) for the Treatment of Gastrointestinal Adenocarcinoma

The goal of this clinical trial is to learn whether the Ad5.F35-hGCC-PADRE vaccine is safe and can stimulate an immune response against gastrointestinal (GI) cancers in patients with pancreatic, colorectal, esophageal, gastric, or small bowel adenocarcinomas who have completed surgical resection and standard adjuvant therapy. An additional goal is to evaluate whether the vaccine may help eliminate minimal residual disease (MRD) in ctDNA-positive colon cancer patients. The main questions it aims to answer are: Is the Ad5.F35-hGCC-PADRE vaccine safe and tolerable at different dose levels? Does the vaccine induce GCC-specific T-cell immune responses in patients with GI malignancies? In ctDNA-positive colon cancer patients, can the vaccine promote ctDNA clearance as a marker of MRD elimination? The investigators will compare immune responses across different vaccine dose levels (10¹¹, 10¹², and 5 × 10¹² virus particles) to determine the optimal dose. Participants will: Receive the Ad5.F35-hGCC-PADRE vaccine by intramuscular injection. Be assigned to one of three dose levels during the dose-finding phase or receive a prespecified dose in the dose-expansion cohort. Undergo safety assessments, including monitoring for adverse events, injection-site reactions, and laboratory test abnormalities. Have blood samples collected to evaluate GCC-specific T-cell immune responses. For ctDNA-positive colon cancer patients, undergo ctDNA testing to assess clearance of minimal residual disease.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-28

1 state

Pancreatic Ductal Adenocarcinoma
Colorectal Adenocarcinoma
Gastric Adenocarcinoma
+36
RECRUITING

NCT07714538

Breath Research Narrow Validation for Gastrointestinal Cancer Detection

The investigators of this study are developing a simple breath test to help detect gastrointestinal (gut) cancers earlier, including cancers of the oesophagus (food pipe), stomach, pancreas, liver and bowel. These cancers often cause non-specific symptoms that are similar to benign conditions, making early diagnosis difficult. Delays between the onset of symptoms and referral for a diagnostic test such as an endoscopy or a scan, can allow the cancer to progress. The breath test detects small molecules called volatile organic compounds (VOCs) that are released in exhaled breath. Some of these VOCs are strongly associated with these cancers and may help identify high-risk patients who require urgent investigation. In practice, patients who come to their GP with concerning symptoms will be offered the breath test. If the test is positive, patients can be referred promptly for a diagnostic test, while those with a negative result can be reassured and offered re-testing if symptoms persist. Earlier diagnosis could improve access to curative treatment while reducing unnecessary invasive investigations. Previous studies have identified a panel of VOCs that appear to distinguish patients with gastrointestinal cancers from those without cancer. This study aims to confirm these findings in a new group of participants to determine whether the same biomarkers can be reliably identified. Participants will provide a breath sample, usually before a hospital procedure they are already scheduled to undergo, and complete a short questionnaire about their medical history and medications. Some participants will also be asked to drink a nutritional supplement before providing a second breath sample. The results will help determine whether the breath test is reliable enough for further clinical evaluation

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-22

2 states

Oesophageal Squamous Cell Carcinoma
Oesophageal Adenocarcinoma
Gastric Adenocarcinoma
+4
RECRUITING

NCT07811193

A Study to Evaluate the Efficacy of VVD-133214 in Combination With Pembrolizumab Compared With Pembrolizumab Alone in Participants With Advanced Cancer of the Colon or Rectum

Researchers are looking for a better way to treat people with advanced colorectal cancer. Colorectal cancer (cancer of the colon or rectum) is one of the most common cancers worldwide. Treatments include surgery, chemotherapy, radiotherapy, and immunotherapy; however, these treatments do not work for everyone, may cause serious adverse events or may stop working eventually. New treatments and treatment combinations are needed, especially for cancers that cannot be removed with surgery or that have spread to other parts of the body (called advanced or metastatic cancer). Cells normally repair themselves when mistakes happen as they divide. But in some people with cancer, the repair system does not work properly because of a problem called dMMR (deficient mismatch repair). As a result, mistakes build up in the cell's DNA, leading to a condition called MSI (microsatellite instability). Over time, these changes can cause cells to grow and behave abnormally, contributing to the development and growth of cancer. To survive, some cancer cells with dMMR or MSI rely on a protein called Werner helicase. This protein helps repair some of the DNA damage allowing them to keep growing. Because these cancer cells depend more on Werner helicase than healthy cells, blocking this protein may help stop cancer cells from surviving while having less effect on healthy cells. The study drug, VVD-133214, is designed to block the Werner helicase protein. Blocking this protein may help stop cancer cells from growing, while causing less harm to healthy cells. VVD-133214 is being studied in combination with pembrolizumab, an approved immunotherapy that helps the immune system recognize and attack cancer cells. This study will test the combination of VVD-133214 and pembrolizumab in people with advanced colorectal cancer with MSI and/or dMMR who have not yet received treatment for their advanced disease. The study aims to find the best dose of VVD-133214 in combination with pembrolizumab and to test whether the combination is more effective than pembrolizumab alone. Participants will receive treatment with VVD-133214 for as long as it can help them and does not cause serious adverse events. Treatment with pembrolizumab will stop after two years. Participants can also stop treatment at any time. During the study, participants will have regular visits with the study doctor for tests, scans, and check-ups. These visits help check how well the cancer is responding to the treatment and monitor the participants' health. The study will also monitor adverse events, which are any new or worsening medical problems that can happen during the study. Doctors record all adverse events, irrespective of whether the study doctor believes they are related to the study treatments, to help ensure participants' safety throughout the study. After stopping treatment, participants will return for follow-up visits: 30 days after their last dose of VVD-133214 and/or 100 days after their last dose of pembrolizumab. After that, participants will have long-term follow-up visits every 90 days for as long as they agree to continue participating in follow-up.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-21

88 states

Colorectal Adenocarcinoma
NOT YET RECRUITING

NCT07875920

Phase 1 Study of NW-301V TCR-T Cells in Advanced Solid Tumors With KRAS G12V Mutation

This is a single-arm, multicenter, open-label, Phase 1a/1b dose-escalation and dose-expansion study designed to evaluate the safety, preliminary antitumor activity, and pharmacokinetic/pharmacodynamic (PK/PD) characteristics of NW-301V, an autologous TCR-T cell therapy, in Chinese adult participants with advanced malignant solid tumors harboring a KRAS G12V mutation.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-15

2 states

Advanced Solid Cancer
Pancreatic Ductal Adenocarcinoma (PDAC)
Colorectal Adenocarcinoma
+4
ACTIVE NOT RECRUITING

NCT04094688

Vitamin D3 With Chemotherapy and Bevacizumab in Treating Patients With Advanced or Metastatic Colorectal Cancer

This phase III trial studies how well vitamin D3 given with standard chemotherapy and bevacizumab works in treating patients with colorectal cancer that has spread to other parts of the body. Vitamin D3 helps the body use calcium and phosphorus to make strong bones and teeth. Drugs used in chemotherapy, such as leucovorin calcium, fluorouracil, oxaliplatin, and irinotecan hydrochloride, work in different ways to stop the growth of tumor cells by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as bevacizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving vitamin D3 with chemotherapy and bevacizumab may work better in shrinking or stabilizing colorectal cancer. It is not yet known whether giving high-dose vitamin D3 in addition to chemotherapy and bevacizumab would extend patients' time without disease compared to the usual approach (chemotherapy and bevacizumab).

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-14

50 states

Colorectal Adenocarcinoma
COMPLETED

NCT07871019

CT Radiomics and Deep Learning-Based Non-Invasive Model for Tracing Primary Sites of Adenocarcinoma Liver Metastases: Automatic Differentiation of Multiple Primary Digestive Tumors

This is a retrospective observational study. Liver metastasis occurs frequently in digestive-system cancers. Identification of the primary tumor source of liver metastasis may pose clinical challenges. Biopsy is an invasive procedure associated with potential sampling errors. This study aims to develop and validate a non-invasive artificial-intelligence model based on contrast-enhanced CT images. The model integrates CT radiomics and deep learning to automatically determine the primary origin of adenocarcinoma liver metastases, including gastric adenocarcinoma, colorectal adenocarcinoma, biliary/gallbladder adenocarcinoma, and pancreatic ductal adenocarcinoma. The investigators will retrieve historical medical records and de-identified abdominal contrast-enhanced CT images from patients diagnosed at West China Hospital, Sichuan University between January 2015 and August 2026. No new intervention or treatment will be administered to participants in this study.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-13

1 state

Liver Metastases
Gastric Adenocarcinoma
Colorectal Adenocarcinoma
+2
RECRUITING

NCT05988645

Performance and Safety of MiWEndo-assisted Colonoscopy (MiWEndo II)

The study involves the planned use of a new microwave-based device during colonoscopy procedures in 50 patients to assess the performance and safety of its use for detection of colorectal polyps and lack of normal clinical practice modification. The device is a final design version, which has been previously tested in several preclinical studies (including phantom studies, an ex vivo study with human tissues, and an in vivo study with porcine model) and in a pilot study in humans (NCT05477836)

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-08

Colorectal Cancer
Colorectal Polyp
Colorectal Adenoma
+3
RECRUITING

NCT07658196

TLR9 Immunotherapy for Peritoneal Carcinomatosis

The goal of this clinical trial is to determine the safety and efficacy of of ACM-CpG for inoperable peritoneal metastases or malignant ascites. The main questions it aims to answer are: • To determine the safety and maximum tolerated dose (MTD) or optimal biologic dose (OBD) of intraperitoneal injection(s) of ACM-CpG for inoperable peritoneal metastases or malignant ascites? Researchers will assign treatment levels using escalating doses of ACM-CpG Therapy. Participants will: * Will receive at least one dose of ACM-CpG therapy on Day 1 of a 28-day treatment cycle. * May receive up to 2 additional injections if they have clinically stable or responsive disease. * Must visit the clinic on Days 1, 4, 7, 10, 14, 21, and 28 for checkups and tests. * Will have a CT scan or MRI performed every 8 weeks for 3 scans and then continue to receive scans every 12 weeks to monitor their disease.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-01

1 state

Malignant Ascites
Colorectal Adenocarcinoma
Peritoneal (Metastatic) Cancer
+1
ACTIVE NOT RECRUITING

NCT05731271

A First-in-Human, Phase 1 Study of TST003 in Subjects With Solid Tumors

The goal of this clinical trial is to test the safety of TST003 in patients with cancer. The main question\[s\] it aims to answer are: * What is the recommended dose patients can safely receive? * How long does this drug remain in the body after administration? * What are the side effects of this drug? * Does your cancer respond to TST003? * Participants on this study will get TST003 intravenously (through a needle into your vein), once every 3 weeks. * You may need to come to the study site 2-4 times to have tests to see if you are eligible to be in the study before you begin to receive the study drug. * After you start the study drug, you will need to return to the site several times after each dose so the physician can take vital signs, draw blood samples, and evaluate you for safety and wellbeing. * Participants will continue taking the drug as long as they are receiving clinical benefit. * At the end of your study participation, additional testing is required.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-29

2 states

Locally Advanced Solid Tumor
Metastatic Tumor
Colorectal Adenocarcinoma
RECRUITING

NCT07551596

Testing the Combination of Anti-Cancer Drugs, Botensilimab (AGEN1181) and Balstilimab (AGEN2034), After Standard Treatment for Colorectal Cancer, Combat Trial

This phase II trial tests the effect of the botensilimab in combination with balstilimab in treating patients with stage II/III colorectal adenocarcinoma with detectable circulating tumor (ct) deoxyribonucleic acid (DNA) in the blood. Immunotherapy with monoclonal antibodies, such as botensilimab and balstilimab, may help the body's immune system attack the tumor, and may interfere with the ability of tumor cells to grow and spread. Giving botensilimab and balstilimab may be an effective combination to remove any remaining microscopic cancer cells in the bloodstream in patients with stage II/III colorectal adenocarcinoma. In addition, clearing the ctDNA from the blood may serve as an early indicator of treatment response.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-29

2 states

Colorectal Adenocarcinoma
Stage II Colorectal Cancer AJCC v8
Stage III Colorectal Cancer AJCC v8
RECRUITING

NCT07020117

A Study of [225Ac]Ac-AKY-1189 in Patients With Solid Tumors

This is a first-in-human Phase 1b, 2-part, multicenter open-label clinical study to evaluate safety and efficacy of a Nectin-4 radiopharmaceutical (\[225Ac\]Ac-AKY-1189) in patients with locally advanced or metastatic solid tumors and to establish the maximum tolerated dose (MTD) or maximum administered dose (MAD) and the recommended Phase 2 dose.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-17

10 states

Urothelial Carcinoma Bladder
Triple Negative Breast Cancer (TNBC)
Hormone Receptor Positive Breast Adenocarcinoma
+4
RECRUITING

NCT07813884

Exploratory Evaluation of the BiP Inhibitor BPR001-615 in Primary Cells and the Diagnostic Value of Circulating BiP in Colorectal Adenocarcinomas

Colorectal cancer is one of the most common cancers worldwide. Although surgery and drug treatments have improved, some colorectal cancers may continue to grow or become resistant to treatment. Researchers are therefore looking for new biological targets that could help develop future therapies. BiP, also known as GRP78, is a protein normally present inside cells. It helps cells manage stress and maintain normal protein function. Cancer cells are often exposed to stressful conditions, such as low oxygen levels and limited nutrients. To survive in this environment, they may produce increased amounts of BiP. High BiP activity may help cancer cells avoid cell death, continue to grow, and become more resistant to treatment. BPR001-615 is an experimental compound developed to block the activity of BiP. The main hypothesis of the COLBiP study is that inhibition of BiP by BPR001-615 will reduce the viability and growth of human colorectal cancer cells in a dose-dependent manner. The compound will only be tested in the laboratory on tumor cells obtained during surgery. It will not be administered to participants, and the results of the laboratory tests will not be used to guide their treatment. COLBiP is a prospective, single-center, exploratory pilot study conducted at Nice University Hospital. The study will include 15 adult patients undergoing planned surgical removal of a confirmed colorectal adenocarcinoma. During the participant's usual hospital care, a 5 mL blood sample will be collected, preferably at the same time as routine blood sampling or placement of an intravenous line. After the tumor has been surgically removed, a small fresh tissue fragment will be collected from the surgical specimen. This sampling will not interfere with the tissue required for routine diagnosis, which will remain the priority. The tumor fragment will be transported to the C3M laboratory, where researchers will isolate the tumor cells and grow them in primary cell culture. These cells will then be exposed to increasing concentrations of BPR001-615. The effect of the compound will be evaluated by measuring cell viability and growth using two complementary laboratory methods: the WST-1 assay and cell counting with trypan blue exclusion. The researchers will establish a dose-response curve and, when possible, estimate the concentration of BPR001-615 required to reduce cell viability by 50%. In parallel, the amount of circulating BiP in the blood will be measured using an ELISA laboratory test. BiP expression within the tumor tissue will also be evaluated using immunohistochemistry. The study will explore whether circulating BiP levels, tumor BiP expression, and the response of the tumor cells to BPR001-615 are associated with one another. Researchers will also examine whether BiP levels are associated with routinely collected tumor characteristics, including tumor stage and histological features. There is no expected direct medical benefit for participants, and participation will not change their usual diagnosis, surgery, or treatment. The procedures specific to the study use blood and tumor tissue collected during routine care, and the additional risk is expected to be minimal. This pilot study aims to provide early evidence about the activity of BPR001-615 in human colorectal cancer cells and to assess whether BiP could be useful as a biomarker in future studies of BiP-targeted treatments.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-17

Colorectal Adenocarcinoma
RECRUITING

NCT03715933

Phase 1 Study of INBRX-109 in Subjects With Locally Advanced or Metastatic Solid Tumors Including Sarcomas

This is a first-in-human, open-label, non-randomized, three-part phase 1 trial of INBRX-109, which is a recombinant humanized tetravalent antibody targeting the human death receptor 5 (DR5).

Gender: All

Ages: 12 Years - 85 Years

Updated: 2026-09-08

13 states

Ewing Sarcoma
Colorectal Adenocarcinoma
RECRUITING

NCT07795749

Ph II Intraperitoneal Paclitaxel + System Therapy in GI Ca w/Peritoneal Carcinomatosis (STOPGAP-B)

This is a phase II open-label, basket clinical trial to assess the feasibility of systemic and Intraperitoneal chemotherapy in subjects with Gastrointestinal Malignancies with Peritoneal Carcinomatosis. These are subjects who have a proven primary carcinoma of the digestive tract..

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-31

1 state

Esophageal Carcinoma
Gastric Cancer (Diagnosis)
Colorectal Adenocarcinoma
+3
COMPLETED

NCT03366155

Hepatic Artery Infusion Pump Chemotherapy With Floxuridine and Dexamethasone in Combination With Systemic Chemotherapy for Patients With Colorectal Cancer Metastatic to the Liver

Background: Many people with colorectal cancer get liver metastases. Standard treatment for this is a combination of chemotherapy drugs. Directing the chemotherapy to the liver may be effective. A device that does this a pump that delivers drugs over 2 weeks at constant rate into the hepatic artery. The person's body temperature causes the drug to flow from the pump. Researchers want to see if this helps people with colorectal metastases to the liver. Objective: To study the effectiveness of a hepatic artery infusion pump at treating colorectal metastases to the liver. Eligibility: Adults at least 18 years old with colorectal metastases to the liver Design: Participants will be screened with: Medical history Physical exam Heart, blood, and urine tests Scans Participants will stay in the hospital a few days. A small plastic tube (catheter) will be inserted in an artery into the liver. The catheter will be attached to the pump. That will lie under the skin on the abdomen. It will be small and participants will be able to feel it. Participants will get treatment in 28-day cycles. Every Day 1, they will have physical exam, symptom review, and blood tests. Every 2 weeks, they will come to the clinic to get chemotherapy by a catheter or port. Every 12 weeks, they will have a scan. Tissue samples may be taken during the study. When they finish the drug, participants may have the pump removed. They will repeat the Day 1 tests. They will be called every 6 months to see how they are doing.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-28

1 state

Colorectal Cancer
Liver Metastases
Colorectal Adenocarcinoma
+2
RECRUITING

NCT06225011

Fluoxetine for the Modification of Colorectal Tumor Immune Cells Before Surgery in Patients With Colorectal Cancer

This phase I trial tests whether fluoxetine (prozac) works to modify the tumor immune cells before surgery in patients with colorectal cancer. Fluoxetine is a commonly used selective serotonin reuptake inhibitor (SSRI) prescribed for major depressive disorder and generalized anxiety. Giving fluoxetine may modify the immune cell composition in the tumor and its microenvironment and may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread in patients with colorectal cancer.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-20

1 state

Colorectal Adenocarcinoma
RECRUITING

NCT07291180

A Feasibility Study of Mass-Based Response Drug Screening to Guide Personalized Hyperthermic Intraperitoneal Chemotherapy for High-Grade Appendiceal and Colorectal Adenocarcinoma With Peritoneal Metastasis

This study will evaluate the role of mass-based response testing (MRT) to select and deliver personalized hyperthermic intraperitoneal chemotherapy (HIPEC) regimens to patients with peritoneal metastasis (PM) from high-grade appendiceal adenocarcinomas (HGAA) and colorectal cancer (CRC).

Gender: All

Ages: 18 Years - 81 Years

Updated: 2026-07-21

1 state

Appendiceal Cancer
Colorectal Adenocarcinoma
Peritoneal Metastases
ACTIVE NOT RECRUITING

NCT03599752

Chemotherapy and/or Metastasectomy in Treating Patients With Metastatic Colorectal Adenocarcinoma With Lung Metastases

This phase II trial studies how well chemotherapy and/or metastasectomy work in treating patients with colorectal adenocarcinoma that has spread to the lungs (metastases). Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Metastasectomy is a surgical procedure that removes tumors formed from cells that have spread from other places in the body. It is not yet known if chemotherapy and metastasectomy together works better in treating patients with metastatic colorectal adenocarcinoma with lung metastases.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-16

5 states

Colorectal Adenocarcinoma
Colorectal Carcinoma Metastatic in the Lung
Stage IV Colorectal Cancer AJCC v8
+3
NOT YET RECRUITING

NCT07691632

Serplulimab Plus Decitabine and CAPOX Before Surgery for Locally Advanced Colorectal Cancer

Title:A Single-Arm, Single-Center, Phase II Exploratory Study of Serplulimab Combined with Decitabine plus CAPOX as Neoadjuvant Therapy for Locally Advanced Colorectal Cancer Background:Colorectal cancer is one of the most common gastrointestinal malignancies worldwide. Patients with locally advanced colorectal cancer remain at high risk of recurrence and distant metastasis after surgery. Although perioperative chemotherapy has improved clinical outcomes, the pathological complete response rate remains limited. Immune checkpoint inhibitors have shown remarkable efficacy in dMMR/MSI-H colorectal cancer; however, most pMMR/MSS tumors respond poorly to immunotherapy alone. Decitabine, a DNA methyltransferase inhibitor, may enhance tumor immunogenicity by promoting tumor antigen expression, improving antigen presentation, increasing immune cell infiltration, and reshaping the tumor immune microenvironment. CAPOX chemotherapy may further induce immunogenic cell death and enhance antitumor immune responses. Therefore, the combination of serplulimab, decitabine, and CAPOX may provide a synergistic neoadjuvant treatment strategy for locally advanced colorectal cancer. Objective:This study aims to evaluate the efficacy and safety of serplulimab combined with decitabine plus CAPOX as neoadjuvant therapy for patients with locally advanced colorectal cancer. The primary endpoint is pathological complete response rate. Secondary endpoints include R0 resection rate, tumor downstaging, objective response rate, disease-free survival, and safety outcomes. Methods:This is a prospective, single-center, single-arm, phase II exploratory clinical study. A total of 35 patients with previously untreated locally advanced colorectal adenocarcinoma will be enrolled. Eligible patients are adults aged ≥18 years with histologically or pathologically confirmed cT3/cT4N+M0 colorectal adenocarcinoma according to the AJCC/UICC 8th edition, at least one measurable lesion according to RECIST 1.1, ECOG performance status of 0-1, adequate organ function, and an expected survival of more than 3 months. The study includes a safety lead-in stage and a dose-expansion stage. In the safety lead-in stage, decitabine dose escalation will follow a conventional 3+3 design, with two planned dose levels: 10 mg and 15 mg intravenously on Days 1-2 of each 3-week cycle. Serplulimab will be administered at 300 mg intravenously on Day 1 of each 3-week cycle. CAPOX consists of oxaliplatin 130 mg/m² intravenously on Day 1 and capecitabine 1000 mg/m² orally twice daily on Days 1-14 of each 3-week cycle. The maximum tolerated dose or recommended phase II dose of decitabine will be determined based on dose-limiting toxicity. In the dose-expansion stage, patients will receive serplulimab combined with decitabine and CAPOX for four cycles as neoadjuvant therapy. Patients without distant metastasis and considered suitable for surgery will undergo radical colorectal cancer resection 2-4 weeks after completion of neoadjuvant treatment. Postoperative adjuvant therapy will be determined by the investigator according to pathological findings and clinical practice. Endpoints and Analysis:The primary endpoint is pathological complete response, defined as the absence of residual viable tumor cells in the primary tumor and resected lymph nodes after neoadjuvant therapy. Secondary endpoints include R0 resection rate, tumor downstaging rate, objective response rate assessed by RECIST 1.1, and disease-free survival. Safety assessments include adverse events, serious adverse events, immune-related adverse events, laboratory abnormalities, vital signs, 12-lead ECG, ECOG performance status, thyroid function, and physical examination findings. Adverse events will be graded according to NCI-CTCAE version 5.0. Descriptive statistics will be used for analysis. Continuous variables will be summarized by mean, standard deviation, median, minimum, and maximum. Categorical variables will be summarized by frequency and percentage. Time-to-event outcomes will be analyzed using the Kaplan-Meier method. Expected Significance:This study will explore whether the combination of PD-1 blockade, epigenetic modulation, and CAPOX chemotherapy can improve pathological response while maintaining acceptable safety in locally advanced colorectal cancer. The results may provide preliminary evidence for a new neoadjuvant treatment strategy and support future multicenter clinical studies.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-09

1 state

Locally Advanced Colorectal Cancer
Colorectal Adenocarcinoma
RECRUITING

NCT06314958

Stage II/III Colorectal Cancer Recurrence

This study will develop an assay to predict disease recurrence in patients with stage II/III CRC after receiving adjuvant chemotherapy, using genome-wide DNA methylation.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-07

1 state

Colorectal Cancer
Colorectal Adenocarcinoma
Colorectal Cancer Stage II
+2
RECRUITING

NCT06342440

Early Detection of Advanced Adenomas and Colorectal Cancer

This study aims to develop a highly sensitive, specific, and cost-effective blood assay for early detection of colorectal adenomas and cancer, using advanced machine learning and state-of-the-art biological analyses.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-07

1 state

Colorectal Cancer
Colorectal Neoplasms
Colorectal Polyp
+15
RECRUITING

NCT06342401

Early Onset Colorectal Cancer Detection

Colorectal cancer (CRC) once predominantly affected older individuals, but in recent years has witnessed a progressive increase in incidence among young adults. Once rare, early-onset colorectal cancer (EOCRC, that is, a CRC diagnosed before the age of 50) now constitutes 10-15% of all newly diagnosed CRC cases and it stands as the first cause of cancer-related death in young men and the second for young women. This study aims to detect EOCRC with a non-invasive test, using a blood-based molecular assay based on microRNA (ribonucleic acid)

Gender: All

Ages: 18 Years - 50 Years

Updated: 2026-07-07

1 state

Colorectal Cancer
Colorectal Neoplasms
Colorectal Adenocarcinoma
+5
COMPLETED

NCT04457284

Temozolomide, Cisplatin, and Nivolumab in People With Colorectal Cancer

This study will test whether the combination of cisplatin, nivolumab, and temozolomide is an effective treatment for in people with advanced and/or metastatic colorectal cancer that is mismatch repair-proficient (MMR-proficient). The researchers will also look at how safe the study drug combination is in participants.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-18

2 states

Colorectal Adenocarcinoma