Active clinical trials for "Colorectal Neoplasms"

The purpose of the this study is to determine the prevalence of germline cancer susceptibility gene mutation among Chinese population, and to find best ways to screen patients with colorectal cancer in China. To accomplish this objective, the investigators will establish a large sample database of hereditary colorectal cancer related information using multigene panel testing based on Next-Generation Sequencing.

In this study, the investigators establish a model for the early diagnosis of colorectal cancer based on the detection of 5-hydroxymethylcytosine (5-hmC) in training group and validate the effectiveness of the model using a validation group recruited from multiple centers.

To confirm the role of the collective dissemination in the mechanisms of tumoral invasion of colorectal cancers

This is an observation pilot trial aimed to study to the association between mindfulness and other psychological factors, including both protective and risk factors, with recovery of functional ability following colorectal cancer surgery.

Colorectal cancer (CRC) is a significant and growing health burden in Hong Kong. According to data from Hong Kong Cancer Registry, CRC ranked the first in incidence and the second in mortality, with around 5,000 new cases diagnosed and more than 2,000 cancer-related mortality in 2014. The investigators aim to evaluate the association between serial weight change during first line treatment and outcomes in patients with metastatic CRC.

Observational case-control study in a retrospective cohort of patients with stage II or III colorectal cancer undergoing scheduled surgery.

In this prospective study, the main goal is to evaluate the strength of Monomark -a monocyte-based transcriptomic test combined to a mathematical model- in patients with a positive FIT test. Therefore, in parallel to the routine FIT screening, blood samples will be harvested and the monocyte genetic profile will be determined. This fundamental study, will disclose the diagnostic power of a biomarker panel ("MonoMark") head to head with the well-established FIT diagnostic test, a core prerequisite for the routine use of this test as an alternative and more reliable CRC screening tool.

A prospective multicenter observational cost-utility study following older or high-risk patients with colorectal cancer with and without prehabilitation before surgery.

Colorectal cancer is the third most common cancer in the UK and Ireland, it is the second commonest cancer in both men and women. Very often the diagnosis is made by either endoscopy/colonoscopy and the surgical treatment is carried out by a minimally invasive approach ("Keyhole"surgery). Tissue samples gathered by either approach are sent to the pathologist to confirm the nature of their content. At present this takes some time (days) and so the information cannot guide the procedure being done or indeed any other investigations or processes that need implementation as soon as possible until the pathology process is completed. Fluorescence guided surgery uses an approved dye along with approved cameras to add more information regarding tissue characteristics then is available by normal viewing alone. It has already been shown to be associated with an improvement in safety related to healing after colorectal surgery and the investigators are sooning in a randomised trial examining this in rectal cancer to prove it. Whether or not this trial proves this or not, the ability to better understand tissue health during investigation/operation needs further examination and development. In this study, the investigators will examine the role of computer vision and machine learning in determining the nature of the tissue being seen in real-time additive to the surgeons' own opinion and experience. This is needed because the dynamic phases of fluorescence inflow into any tissue is difficult to interpret most especially when it relates to microvasculature as is present within a cancer site or deposit. By this means the investigators hope to better understand the dynamic perfusion in and out of tissue whether normal or abnormal and define signatures that can speed up and/or help inform the surgeon regarding the actual nature of the tissue being seen. The investigators will compare the data being generated with that already being captured with regard to standard pathology and radiology and other laboratory measures of clinical course. Tissue resected from a patient will also be examined in the laboratory under near-infrared microscopy and analysed for fluorescence intensity to understand where exactly and how much of the dye accumulates in specific regions of tissue. There are no new operations in this study and no new interventions are being made on the basis of the information being gathered- it's a comparative study to see how this added information can add value to interventionalists during surgery. There are four collaborating groups involved in this research consortium, two are commercial partners as they add value in both this advanced field of analytics and in the ensuring a clinical business case is included so that findings of this work can be useful for patients.

This is a multicenter observational study aimed to describe the efficacy and safety of regorafenib plus programmed cell death-1 (PD-1) inhibitors in Chinese patients with advanced colorectal cancer in routine clinical practice. The primary end point is overall survival. The secondary endpoints include progression-free survival, objective response rate, disease control rate and the incidence of treatment-related adverse events.