Active clinical trials for "Rectal Neoplasms"

The purpose of this study is to assess the effect of palliative pelvic radiation on symptoms and quality of life among patients with incurable prostate and rectal cancer.

RATIONALE: Learning about quality of life, symptoms, and health behaviors in colorectal cancer survivors may help to determine the long-term effects of colon and rectal cancer treatments and may help to improve the quality of life for future cancer survivors. PURPOSE: This clinical trial is looking at patient-reported outcomes in long-term survivors of colon and rectal cancers.

This study was conducted to compare the significance of lymph node ratio and absolute count of positive lymph node count on overall survival in patients with rectal cancer who underwent resection with curative intent

Data on disease recurrence was collected for all primary rectal cancer patients diagnosed in the Netherlands over the first six months of 2015. Three-year cumulative incidence, risk factors, treatment and three-year OS of locally recurrent rectal cancer were determined.

The aim of this retrospective cohort-study is to assess the effects of AL and its severity divided according the ISREC-classification on the long-term oncological outcome.

The anastomotic leaks are multivariable in its origin. The incidence varies among different centers between 4% and as high as 25%. The impact of leakage in a rectal anastomosis can be devastating for the patient and very costly for the health care system. Prolonged hospital stay (LOS), invasive treatment and intensive care are the consequences. The future of colorectal surgery will increasingly include older patients with increased preoperative morbidity and probably even higher risk for anastomotic leaks. which makes it suitable for reinforcing a rectal anastomosis. The goal is to shift the clinical leaks spectrum into a subclinical and therefore self-healing one.

Freenome is using a type of artificial intelligence, called machine learning, to identify patterns of cell-free biomarkers in blood to detect cancer early. The purpose of this study is to develop and validate a blood-based assay to detect colorectal cancer by collecting blood and stool samples from healthy patients undergoing routine screening colonoscopy and from patients recently diagnosed with colorectal cancer or advanced adenomas.

Rectal cancer is a common diagnosis. The prognosis after treatment has improved over the last decades, partly due to neoadjuvant radio(chemo)therapy, but also due to improved surgical technique (TME) and, in certain cases, due to adjuvant therapy after surgery. For some 15-20 years, treatment of metastasis has changed; liver- and lung metastasis in certain situations are surgically removed, or in the liver, treated with ablation (radio-frequency). During the same period the possibilities for chemotherapy of metastatic disease have improved, with new drugs and more drug regimens. These changes in treatment pathways have required changes in how patients with newly diagnosed rectal cancer are "worked up" pre-treatment. Starting in the early 2000s magnetic resonance imaging of the pelvic area has developed and is today mandatory to be able to adequately stage the tumour and plan for the multi-modal treatment before and after surgery. In many hospitals the set-up is a combination of computed tomography of the abdomen and chest and to this a MRI of the pelvic organs is added, whereas others have adopted MRI also for the abdominal part, thus having an MRI of the liver for the diagnosis of liver metastasis initially, before surgery. For the chest organs, CT is still normative. MRI has a higher sensitivity and specificity to detect liver metastasis, compared with CT. In order to plan the liver surgery/ablations, most liver surgeons rely on MRI for detailed information about the position of the metastasis and the relation to large vessels. The aim of this study is to examine the possible differences in percentage of patients requiring further radiology examinations after basic set-up comparing the routine of initial MRI of abdomen (and pelvic organs) with the routine of initial CT of the abdomen (and MRI of the pelvic organs). Further included is an analysis of the rate of liver metastasis using the two different routines, and finally outcome over 12 months in terms of liver treatment for metastasis.

The purpose of this study is to determine whether 18F-FDG-PET-CT and texture analysis of MRI performed 9 weeks after Neoadjuvant Chemo-radiotherapy in patients with locally advanced rectal cancer has the ability to identify patients with Complete Response.

The purpose of this study is to investigate if PET/CT and MRI scans performed early in treatment and six weeks after treatment can predict the response of rectal cancer following chemotherapy and radiotherapy. This will help doctors to better tailor treatments for rectal cancer in the future.