Active clinical trials for "Colorectal Neoplasms"

This study will report the incidence of atrial fibrillation after elective colorectal cancer resection in the over 65 age group. This will be used to validate a risk model for the development of post-operative atrial fibrillation. Eligible patients will undergo electrocardiogram based screening for atrial fibrillation, as well as brain natriuretic peptide tests prior to surgery. They will undergo 24 hour holter monitor prior to surgery, and at 30 and 90 days following surgery. The primary outcome will be occurrence of atrial fibrillation within 90 days of surgery. Secondary outcomes include quality of life change, use of hospital services for atrial fibrillation, and complications of atrial fibrillation. This will be used to validate the pre-existing model for prediction of atrial fibrillation.

Colorectal cancer (CRC) ranked the first in cancer incidence in Hong Kong and it is frequently lethal with heterogeneous drug responses and survival outcomes. Immune-based approaches targeting to enhance tumor-specific responses have been actively under investigation as therapeutic strategies. Currently, PD1 and PD-L1 blockade has shown promising results in clinical trials especially in colorectal cancer patients with microsatellite instability. This study aims to examine the role of PD-L1/PD1 in immune cell-mediated cytotoxicity in colorectal cancer patients.

TRACC Part B This is a multi-centre, prospective, translational research study involving the collection and analysis of tumour tissue, serial blood samples and clinical data in patients with newly diagnosed stage I, II and III CRC. TRACC Part C is a : (multi-centre, prospective, randomised study, of ctDNA guided adjuvant chemotherapy versus standard of care adjuvant chemotherapy study after curative surgery in patients with high risk stage II or stage III CRC. )It aims to demonstrate that a de-escalation strategy of ctDNA guided adjuvant chemotherapy is non- inferior to standard of care treatment as measured by 3 year disease free survival (DFS) in patients with high risk stage II or stage III colorectal cancer CRC with no evidence of minimal residual disease (MRD) (ctDNA negative)

This phase II MATCH trial studies how well treatment that is directed by genetic testing works in patients with solid tumors or lymphomas that have progressed following at least one line of standard treatment or for which no agreed upon treatment approach exists. Genetic tests look at the unique genetic material (genes) of patients' tumor cells. Patients with genetic abnormalities (such as mutations, amplifications, or translocations) may benefit more from treatment which targets their tumor's particular genetic abnormality. Identifying these genetic abnormalities first may help doctors plan better treatment for patients with solid tumors, lymphomas, or multiple myeloma.

This study will maximize identification of women with Lynch Syndrome using an enhanced screening strategy to identify those at risk. These women will be referred to genetic counselling for testing and those found to have Lynch Syndrome will be asked to invite first degree relatives to participate and undergo genetic testing for Lynch Syndrome. Screening guidelines and risk reducing surgery options for participants found to have Lynch Syndrome will be reinforced by the study and adherence to these guidelines will be assessed annually for ten years following Lynch Syndrome diagnosis to assess the impact and cost-effectiveness of this enhanced screening approach.

Background: - Recent advances in cancer research have led to new therapies to treat the disease. It is important to continue these advances and discover new ones. To do that, researchers need tissue samples from solid tumors. This study will collect such samples from people already scheduled to have a procedure at the National Institutes of Health Clinical Center (NIHCC). Objectives: - To collect tissue samples for use in studying new ways to treat tumors. Eligibility: Adults 18 years and older, with a precancerous or cancerous solid tumor who are scheduled to have surgery or a biopsy at the NIHCC. Children under the age of 18 but who are older than 2 years of age are eligible to be enrolled on the research sample collection portion of this study if they will have a biopsy or surgery as part of their medical care. Design: Before their procedure, participants will have a small blood sample taken. Some participants will undergo leukapheresis. In this procedure, blood is removed through a tube in one arm and circulated through a machine that removes white blood cells. The blood, minus the white blood cells, is returned through a tube in the other arm. The procedure takes 3-4 hours. For all participants, during the surgery or biopsy, pieces of the tumor and pieces of normal tissue near it will be removed for this study. The rest of the tumor or precancerous growth will be sent to a lab for analysis. Participants will return to the clinic about 6 weeks after the operation for a routine checkup. Some may have to return for additional follow-up.

A population-based prospective study to evaluate clinical behaviour, resectability and survival in 1st line metastatic colorectal cancer (CRC) patients in Finland Primary objective: To assess clinical behaviour of metastatic colorectal cancer and overall resectability, postoperative morbidity and outcomes after resection Secondary objectives: To assess treatments for mCRC; To assess efficacy of chemotherapy and targeted drugs with overall response rates (ORR), failure free survival (FFS), progression free survival (PFS), and overall survival (OS); To radiologically assess tumour density and morphology, and assess alternative radiologic response evaluation in comparison with RECIST response criteria; To evaluate whole blood, plasma, serum and tumour block biomarkers and DNA polymorphisms that may predict drug effects, resectability and clinical behaviour of the tumour

The ASAC trial is a Scandinavian, multi-center, double-blinded, randomized, placebo-controlled study to determine whether adjuvant treatment with low-dose acetylsalicylic acid (ASA) can improve disease free survival in patients treated with resection for colorectal cancer liver metastases (CRCLM). Several studies have shown beneficial effect of ASA on primary prevention of CRC and the investigators group and others have shown a potential association of ASA also taken after the diagnosis on CRC survival in registry-based studies (secondary prevention). Up to 800 patients operated for CRCLM will be randomized to Arm#1 ASA 160 mg once daily or Arm#2 Placebo for a period of 3 years or till disease recurrence. The patients will be treated and followed up according to standard of care and the National Guidelines. The ASAC trial will be the first clinical interventional trial to assess the beneficial role of ASA in recurrence of CRC liver metastases and survival. ASA is an inexpensive, well tolerated, and easily accessible drug that will be highly potential as adjuvant drug in secondary prevention of CRC liver metastases if the study shows a beneficial effect. This trial will also investigate the effect of ASA as adjuvant treatment on Health-related Quality of Life and the cost-effectiveness.

This is a prospective, multicenter, observational, single-blinded controlled study. Dynamic monitoring of patients with resectable colorectal cancer was performed using the previously established colorectal tumor-specific plasma ctDNA methylation markers (Multigene methylation detection). Dynamic monitoring of plasma ctDNA methylation before and after treatment and at regular follow-up in patients with colorectal cancer after radical resection of tumor, to explore the predictive effect of postoperative plasma ctDNA methylation on postoperative recurrence and whether dynamic monitoring of postoperative ctDNA methylation could be earlier than imaging examination to indicate tumor recurrence.

This phase I trial studies how well an imaging agent called I-124 M5A works in detecting CEA-positive colorectal cancer that has spread to the liver. I-124 M5A is a monoclonal antibody, called M5A, linked to a radioactive substance called I-124. M5A binds to CEA-positive cancer cells and may, through imaging scans, be able to detect liver metastases by picking up signals from I-124.