View clinical trials related to Rectal Neoplasms.
Filter by:The present study will investigate the safety of inferior mesenteric artery embolization prior to rectal surgery, according to IDEAL recommendations (Lancet 2009). It aims to assess the safety of endovascular embolization of the inferior mesenteric artery prior to surgery in patients with rectal tumors, and estimate the potential benefits in terms of time to surgery and the occurrence of post-operative fistulas.The study will also assess the impact of subacute ischemia induced by IMA embolization on colonic vasculature remodeling, colonic ischemic suffering, altered hemostasis and initiation of neo-angiogenesis through blood sampling kinetics.The hypothesis is that ischemic preconditioning by inferior mesenteric artery embolization prior to rectal cancer resection surgery is safe and will result in a decrease in acute relative colon ischemia and a reduction in the rate of fistulas and post-surgical complications. Indeed, we believe that the beneficial effects of the ischemic preconditioning of IMA will be due to better blood perfusion of the colon at 3 weeks, which is apparently linked to remodeling and/or the development of collateral vascularization.
This study aimed at comparing the Comprehensive Complication Index (CCI), readmission rates, postoperative hospitalization days, duration of bearing the stoma (months), hospitalization costs, the number of hospitalizations with ghost ileostomy group versus no ileostomy group after total mesorectal excision for rectal cancer.
The goal of this observational trial with a nested randomized controlled trial is to investigate a selective approach of defunctioning stoma in low anterior resection in rectal cancer patients. The primary outcome is a hybrid so-called textbook outcome; stoma-free survival at two years without major LARS, reflecting a functionally appropriate outcome after low anterior resection for rectal cancer. Secondary outcomes include anastomotic leakage, postoperative mortality, reinterventions, stoma-related complications, quality of life measures, LARS, and permanent stoma rate up to two years after index surgery.
This single-arm trial will explore the efficacy and safety of long-course neoadjuvant chemoradiation with liposomal irinotecan and capecitabine guided by UGT1A1 status in patients with locally advanced rectal cancer.
This study is being done to answer the following questions: Is the chance of rectal cancer responding the same if chemotherapy alone is given before limited surgery compared to chemotherapy and radiation therapy given together before limited surgery? If radiation therapy is not given, is quality of life better?
phase II clinical trial to evaluate node-sparing short-course radiation combined with total neoadjuvant CAPOX and Sintilimab for MSS locally advanced rectal cancers.
The goal of the trial is to observe the changes of 68Ga FAPI signal before and after total neoadjuvant therapy for rectal cancers, and the correlation between the image parameters, immune checkpoints expression as well as the patient outcome. The trial will recruit patients with biopsy-confirmed rectal cancer aged 18 years old or older, with WHO/ECOG Performance Status 0-1, and eligible for total neoadjuvant therapy at the clinicians' discretion. After signing the informed consent, the participants will undergo a standard staging work-up if not already done, including colonoscopy and cross-sectional images such as CT, MR, and FDG-PET. Kidney function (by serum creatinine) and liver function (by serum alanine aminotransferase) will also be assessed. Only patients with stage II-III rectal cancer will be recruited. If patients meet the inclusion and exclusion criteria, they will undergo the first 68Ga-FAPI PET within 30 days before the beginning of total neoadjuvant therapy. At 22-24 weeks into the TNT, follow-ups for response evaluation will be conducted, including colonoscopy and cross-sectional images such as CT, MR, and FDG-PET. The second 68Ga-FAPI PET will be performed within one month of these exams. Afterward, participants will either undergo surgery or have image follow-ups every 3 months. The participants will be followed up for up to 2 years after the second 68Ga-FAPI PET, and immunochemical staining with CD47, CD73, PD-L1, and FAP on the biopsy or surgical specimens will be performed in one batch to avoid batch-to-batch variation.
The goal of this clinical trial is to learn about whether it is safe to omit dissection of the No.253 lymph nodes in mid and low rectal cancer surgery. The main question it aims to answer is that if it is possible to achieve the same long-term survival with and without the dissection of the No.253 lymph node in mid and low rectal cancer surgery. Participants will underwent laparoscopic rectal radical resection with or without the dissection of the No.253 lymph node.
This study aims to evaluate the efficacy of erectile rehabilitation with Sildenafil, in men treated with neoadjuvant proctectomy and radiotherapy for rectal cancer, in preventing long-term erectile dysfunction at 12 months post-operatively.
This is a multicenter, superior, randomized controlled trial designed to compare Robotic-assisted total mesorectal excision (RATME) and laparoscopic-assisted total mesorectal excision (LATME) for middle and low rectal cancer. The primary endpoint is the incidence of intersphincteric resection (ISR). The secondary outcomes are coloanal anastomosis (CAA), conversion to open, conversion to transanal TME (TaTME), incidence of abdominoperineal resection (APR), postoperative morbidity and mortality within 30 days after surgery, pathological outcomes, long-term survival outcomes, functional outcomes, and quality of life.