Active clinical trials for "Rectal Neoplasms"

The purpose of the study is to determine the feasibility of using magnetic resonance imaging (MRI)-guided adaptive chemoradiation therapy to improve response to treatment.

This study is designed to investigate whether or not the use of a customized vacuum immobilization device (CVID) to immobilize rectal cancer patients undergoing preoperative pelvic radiation therapy improves the positional stability of patients during each radiation treatment. This question is more relevant now in the era of image-guided radiation therapy (IGRT). Using state of the art IGRT technologies such as cone beam CT (CBCT) scanning, assessments of the accuracy of treatment delivery can be made during a course of radiation therapy allowing for patient set-up corrective strategies to be implemented. The use of CBCT scanning may minimize any potential benefit of of a CVID if the patient's pretreatment position can be corrected prior to treatment and our current immobilization strategy results in a stable patient position. While it is seemingly intuitive to assume that the use of CVID results in better patient stability, there is actually little data to support this.

This study will evaluate whether artificial intelligence technique reduces the temporary ileostomy rate in patients with rectal cancer who receive anterior resection.

Magnetomotoric ultrasound, combines conventional ultrasound with a time-varying magnetic field. The aim is to improve diagnosis of mesolectal lymph nodes.

National, multi-center, open-label,randomized, 2-arm phase III superiority trial, comparing neoadjuvant chemotherapy (CT) with mFolfirinox followed by preoperative chemoradiotherapy (CRT), versus preoperative CRT in patients with locally advanced rectal cancer.

There are severel problems associated with the closing of a temporary loop-ileostomy after surgery for rectal cancer. The purpose of this study is to answer two questions: The choice of anastomotic method - does it influence the postoperative course? The use of a prophylactic mesh when closing the stoma site - will there be less hernias?

This study aims to demonstrate that a preoperative combination of mechanical bowel preparation and oral antibiotics, before elective laparoscopic rectal cancer surgery, is associated with a reduction of postoperative surgical site infection rate, as compared to mechanical bowel preparation alone Our hypothesis is that a preoperative colonic preparation including a combination of mechanical bowel preparation and oral antibiotics before elective laparoscopic rectal cancer surgery is associated with a reduced rate of 30-day postoperative surgical site infection, as compared to mechanical bowel preparation alone

Currently, low concordance (36%) is found between clinical complete response and pathologic complete response in patients with rectal cancer after neoadjuvant chemoradiotherapy. Probe-based confocal laser endoscopy (pCLE) provides a promising targeted optical biopsy to evaluate the response to neoadjuvant chemoradiotherapy. The aim of this study is to investigate whether pCLE-targeted optical biopsy can improve the accuracy of preoperative endoscopic biopsy for local rectal scars in rectal cancer patients after neoadjuvant chemoradiotherapy.

To evaluates the role of Dendrobium Huoshanense Suppository for radiation proctitis in locally advanced rectal cancer treated by capecitabine and irinotecan based neoadjuvant chemoradiation.

The overall aim of this pilot study is to prospectively monitor programmed death-ligand 1 (PD-L1) expression dynamics in vivo, during neoadjuvant chemoradiotherapy (CRT) or short-course preoperative radiotherapy (SCPRT) in rectal and esophageal cancer by a positron emission tomography (PET) imaging approach.