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Showing 1-17 of 17 trials
NCT04963283
Data from a prior phase II study of single agent cabozantinib in metastatic, refractory colorectal cancer (NCT03542877) combined with the compelling preclinical data in colorectal mouse models utilizing cabozantinib combined with nivolumab have led to this concept for a clinical trial to combine cabozantinib and nivolumab in patients with metastatic MSS CRC in the third line setting and beyond.
NCT04109924
This phase II trial studies how well TAS-102, irinotecan, and bevacizumab work in treating patients with pre-treated colorectal cancer that has spread to other places in the body (metastatic) or cannot be removed by surgery (unresectable). Drugs used in chemotherapy, such as TAS-102, 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. Irinotecan may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with bevacizumab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Giving TAS-102, irinotecan, and bevacizumab may work better in treating patients with colorectal cancer compared to traditional chemotherapy and bevacizumab.
NCT03015038
Duration of each part of the study per patient: * Screening: From 1 to 4 weeks * Sampling period (blood and tissue): 1 day * Follow-up by patient: 60 months * Total study duration by patient: 84 months * Total inclusion duration: 24 months * Total Follow-up duration: 60 months * Total study duration: 84 months
NCT02863107
This study investigates the genetic factors that may influence the risk of developing colorectal cancer at a young age. Finding genetic markers for colorectal may help identify patients who are at risk of colorectal cancer. Studying individuals and families at high risk of cancer may help identify cancer genes and other persons at risk.
NCT07167147
Colon cancer is one of the most common cancers worldwide, and even after curative (radical) surgery, some patients develop recurrence or distant metastasis. Understanding how tumor stage and lymph node status at the time of diagnosis influence the risk and patterns of recurrence is important for guiding follow-up and treatment strategies. This study retrospectively evaluates patients with stage I-III colon cancer who underwent radical surgery at Chang Gung Memorial Hospital between 2006 and 2018. A total of 7,259 patients are included from the institutional tumor registry. Patients are categorized into four tumor-node (TN) stage groups: * T1-3 without lymph node involvement * T1-3 with lymph node involvement * T4 without lymph node involvement * T4 with lymph node involvement The study aims to examine recurrence patterns (no recurrence, local recurrence, isolated lung metastasis, isolated liver metastasis, or multiple sites) and overall survival. Statistical analyses planned include Kaplan-Meier survival analysis and marginal structural models to compare outcomes across different TN stages and recurrence types. This study is based on retrospective data and was approved by the Institutional Review Board of Chang Gung Memorial Hospital (IRB No: 202500389B0). No new patient enrollment or interventions will be performed, and patient consent was waived due to the retrospective nature of the study.
NCT06414304
Colorectal cancer (CRC) is a leading cause of cancer-related mortality worldwide. Microsatellite instability or mismatch repair deficiency occurs in 20% of CRC, and is predominantly found in non-metastatic tumors. The success of the CheckMate 142 and KEYNOTE-177 clinical trials has shifted the treatment paradigm of the MSI/dMMR CRC, which has led to the adoption of immune checkpoint inhibitors (ICI) by international treatment standards. However, despite the encouraging effects of ICI, up to 30% of patients are resistant to treatment and exhibit rapid disease progression shortly after starting ICI. On the other hand, around 30% of patients treated with ICI demonstrate prolonged responses to the treatment with a duration of response of over 40 months. Furthermore, for \~10% of patients, treatment with ICI results in pseudo-progression - a phenomenon of a short-term increase followed by the decrease of the tumor volume. Currently, the mechanisms and biomarkers associated with the response or resistance to ICI in MSI-positive CRC are largely unknown. Select studies suggest that BRAF mutations (specifically, BRAF p.V600E) might negatively affect the patients' progression-free survival following ICI, however, these data are premature. The primary hypothesis is that the clonal heterogeneity and the evolution of MSI status of MSI-positive CRC will play a role in the development of ICI treatment resistance. The primary objective of the study is to investigate the dynamics of MSI status in serial liquid biopsy samples from patients with MSI-positive tumors receiving ICI.
NCT06971107
The goal of this prospective observational study is to learn more about how a specific type of DNA repair issue-called mismatch repair deficiency (dMMR)-affects colon cancer in people living in Turkey. The study will look at how often dMMR occurs, how it is reported, and how it relates to treatment outcomes. The main questions it aims to answer are: * How common is dMMR in colon cancer, and does it vary by where the tumor is in the colon? * How often is MSI (microsatellite instability) status reported in colon cancer biopsy reports before surgery? * How do different types of dMMR (such as MLH1/PMS2 loss, MSH2/MSH6 loss, or sporadic cases) affect survival over three years? Participants will: * Be people who had surgery for colon cancer between June 1, 2025 and May 31, 2026 at hospitals in Turkey that treat more than 30 colon cancer cases each year. * Have their medical and pathology data reviewed, including information about tumor location, biopsy results, surgery, and treatment. This study will not involve any new treatments. Instead, it will use existing medical records to better understand how to improve care and identify people who may benefit from immunotherapy. Results from this study will be shared at scientific meetings and published in medical journals.
NCT04068103
This phase II/III trial studies how well circulating tumor deoxyribonucleic acid (ctDNA) testing in the blood works in predicting treatment for patients with stage IIA colon cancer after surgery. ctDNA are circulating tumor cells that are shed by tumors into the blood. Finding ctDNA in the blood means that there is very likely some small amounts of cancer that remain after surgery. However, this cancer, if detected, cannot be found on other tests usually used to find cancer, as it is too small. Testing for ctDNA levels may help identify patients with colon cancer after surgery who do benefit, and those who do not benefit, from receiving chemotherapy.
NCT05356897
This phase II trial studies whether tucatinib combined with trastuzumab and TAS-102 works to shrink tumors in patients with HER2 positive colorectal cancer that has spread to other parts of the body (metastatic) and has one of the following gene mutations detected in blood: PIK3CA, KRAS, NRAS, or BRAF V600. Tucatinib is in a class of medications called kinase inhibitors. It works by blocking the action of the abnormal protein that signals tumor cells to multiply. This helps stop or slow the spread of tumor cells. Trastuzumab is a form of targeted therapy because it attaches itself to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When trastuzumab attaches to HER2 receptors, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. TAS-102 is a combination of 2 drugs; trifluridine and tipiracil. Trifluridine is in a class of medications called thymidine-based nucleoside analogues. It works by stopping the growth of tumor cells. Tipiracil is in a class of medications called thymidine phosphorylase inhibitors. It works by slowing the breakdown of trifluridine by the body. Giving tucatinib, trastuzumab, and TAS-102 together may work better than usual treatment for metastatic colorectal cancer.
NCT05130060
This phase Ib trial studies the safety and side effects of a vaccine (PolyPEPI1018 vaccine) in combination with TAS-102 in treating patients with colorectal that has spread to other parts of the body (metastatic). PolyPEPI1018 peptide vaccine is used to immunize against proteins present on the surface of tumor cells. This vaccine can activate the body's immune cells, called T cells. T cells fight infections and can also kill cancer cells. TAS-102 may help block the formation of growths that may become cancer. Giving PolyPEPI1018 and TAS-102 may kill more tumor cells in patients with metastatic colorectal cancer.
NCT03992456
This phase II trial studies how well retreatment with panitumumab works compared to standard of care regorafenib or trifluridine and tipiracil hydrochloride (TAS-102) in treating patients with colorectal cancer that is negative for RAS wild-type colorectal cancer has spread to other places in the body (metastatic), and/or cannot be removed by surgery (unresectable), and is negative for resistance mutations in blood. Treatment with panitumumab may interfere with the ability of tumor cells to grow and spread. Some tumors need growth factors to keep growing. Growth factor antagonists, such as regorafenib, may interfere with the growth factor and stop the tumor from growing. Drugs used in chemotherapy, such as TAS-102, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving panitumumab may work better in treating patients with colorectal cancer than with the usual treatment of regorafenib or TAS-102.
NCT06017141
This trial evaluates how inhalational anesthesia (drawn in through the lungs) and total intravenous anesthesia (TIVA) (through a needle in a vein in the arm) change the body's ability to recover from surgery or whether they impact the immune system immediately after surgery in patients with colon cancer. It is unknown whether these types of anesthesia change recovery from surgery or change the chances cancer comes back following surgery. This study may help researchers learn how different types of anesthesia affect recovery from colon cancer surgery.
NCT05872334
This clinical trial aims to evaluate the safety and feasibility of mid-line fascial suturing using MONOFIX sutures in patients undergoing minimally invasive surgery for colorectal cancer.
NCT03871790
An international, multicenter study to identify tumor molecular particularities and neoepitopes among participants with colorectal and pancreatic tumors undergoing surgery.
NCT05422547
The proposed study is a bidirectional analytical study, composed of a retrospective and a prospective cohorts. Patients with stage II - III colorectal cancer undergoing oncological surgery will be analyzed. The study will include a convenience sample of 100 individuals. Fifty cases will be included retrospectively and fifty prospectively. The study aims to evaluate the benefit of using the Immunoscore test as a predictor of recurrence in patients with operated stage II-III colon tumors. It will also be evaluated the impact on oncologic decision and costs.
NCT04863768
In this translational research study, Formalin-Fixed-Paraffin-Embedded (FFPE) tumor tissue blocks from patients with early-stage (II-III) colorectal cancer will be assessed for a comprehensive cancer gene panel from NIPD Genetics (https://www.nipd.com/) targeting regions in 37 clinically relevant cancer genes. The colorectal cancer panel includes an extended list of clinically relevant genes, designed to target clinically actionable and clinically significant mutations that will provide physicians with genetic information regarding a) prediction of the patient's response to targeted therapy, b) prognosis, that is, prediction of clinical outcome, c) diagnosis and molecular classification of colorectal cancer.
NCT04475159
Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a novel drug-delivery system developed to deliver, effectively and safely, small doses of cytotoxic agents into peritoneal tumor deposits. It is currently used for palliation and for down-staging of patients who are non-eligible for cytoreductive surgery (CRS) and hyperthermic intra-peritoneal chemotherapy (HIPEC). The aim of this study is to evaluate the efficacy of PIPAC used in neoadjuvant setting to enhance the response of patients with colorectal peritoneal metastasis when combined with neoadjuvant systemic therapy for patients eligible to CRS/HIPEC prior to planned surgery.