300,000+ clinical trials. Find the right one.

105 active trials for Colorectal Neoplasms

Effects of Anesthetic Techniques on Time to Start of Adjuvant Chemotherapy, and Early and Late Outcomes Following Surgery for Colorectal Cancer

Colorectal cancer (CRC) is the third most common cancer in the world with a high postoperative mortality (2 - 6%) as well as a low 5-year survival (40%). Despite advances in surgery and the use of minimally invasive laparoscopic surgery in recent years and adjuvant chemotherapy after surgery, long-term prognosis has only improved marginally. Epidural analgesia is commonly used as a part of the perioperative management of patients undergoing open, colorectal cancer surgery. Not only does it reduce pain and stress, epidurals have been shown to reduce perioperative inflammation and preserve immunological function, all of which may be beneficial in perioperative tumorigenesis. In several retrospective studies, anesthesia and choice of analgesia have shown to improve long-term survival, but no randomized studies have been published in the literature today. Similarly, the benefits of propofol anesthesia in comparison to inhalational anesthesia have recently been high-lighted in relation to cancer surgery, and many patients today request the use of epidurals, total intravenous anesthesia and loco-regional anesthetic technique during surgery, without clear evidence from prospective studies in the literature. Therefore, the question as to the real benefit of anesthesia technique in postoperative outcomes and tumor recurrence remain unanswered, and skepticism abounds amongst both surgeons and anesthesiologists. It is therefore important to study short- and long-term outcomes in patients undergoing CRC surgery, comparing epidural vs. no epidural or inhalational vs. total intravenous anesthesia. However, prospective, randomized studies are costly, require many patients, and the benefits of choice of anesthesia and analgesia on outcome remain uncertain from the current literature. There is a clear diffusion in practice across the world in the choice of anesthesia for patients undergoing CRC surgery, a lack of evidence in the literature and an absence of guidelines on best practice anesthesia care. We believe that by performing a large, prospective, observational, international, pragmatic study, with low costs, it will be possible to answer some of the important questions pertaining to the choice of anesthesia and analgesia. The clinical trials network at the European Society of Anesthesiology will play an important role in the success of this study.

Start: April 2021
A Phase 2 Randomized, Open-Label Study of RRx-001 vs Regorafenib in Subjects With Metastatic Colorectal Cancer

This two-stage study is designed to compare the safety and activity between RRx-001 against regorafenib followed by irinotecan-based therapies in a parallel comparative study. Patients who are suffering from advanced or metastatic (meaning the disease has spread) colorectal cancer are invited to participate in this study. There will be two groups of patients (Randomized, open label study), one of these will receive RRx-001 and the other one will receive regorafenib. If patients qualify to participate in this study, they will be randomly assigned to the 'interventional arm' where patients will receive the experimental drug, RRx-001, or the 'control arm' where they will receive the current standard-of-care, Regorafenib. Patients have a 66% chance (2 out of 3) of receiving RRx-001 and a 33 % chance (1 out of 3) of receiving regorafenib. On progression in the first part of the study, provided ECOG performance status is adequate, and if clinically appropriate i.e. there are no absolute or relative contraindications in the opinion of the Investigator, all subjects will enter the second part of the study and receive irinotecan plus bevacizumab. Whether patients are given RRx-001 or regorafenib, they will also receive best supportive care, which includes treatments to help manage side effects and symptoms of cancer. This is an open label study, which means patients will know to which of these treatments, RRx-001 or regorafenib, they are assigned.

Start: May 2014
Longitudinal Incision Versus Cruciate Incision in the Construction of an End Colostomy

TITLE: "Incidence of parastomal hernia: Randomized clinical trial comparing the longitudinal fascial incision (" Hepworth hitch ") vs. cruciate incision in the exteriorization of a end colostomy ". DESIGN: Randomized, open and parallel clinical trial so patients will be assigned to the cruciate incision group or longitudinal incision with a 1: 1 allocation ratio. POPULATION: Patients undergoing colorectal cancer surgery a definitive end colostomy. OBJECTIVES: The main objective is to compare the parastomal hernia rate diagnosed by imaging at 2 years after surgery. Secondary objectives are: Clinically relevant parastomal hernia rate by physical examination 2 years after surgery. Incidence of postoperative complications related to the stoma (dehiscence, retraction, stenosis, necrosis, surgical revision, prolapse and special needs of care of the stoma in the immediate or late postoperative period); 3) Incidence of postoperative complications assessed according to the Comprehensive Complication Index (CCI) scale. 4) Ease / difficulty in the management of stomatherapy devices by patients using VAS (Visual Analogue Scale). DESCRIPTION OF THE INTERVENTION: An end colostomy without placement of a prophylactic mesh will be performed in all patients. In the group 1A, a longitudinal incision will be made in the anterior rectus fascia and in the posterior fascia, with two Prolene sutures at the ends of the incision of the anterior aponeurosis. In patients of group 1B, a cruciate incision will be made in the anterior rectus fascia, as well as in the posterior fascia. DURATION OF THE STUDY: The expected duration of the study is 3 years. PATIENT FOLLOW UP TIME: The planned follow-up time is 2 years. EXPECTED RECRUITMENT TIME: 12 months.

Start: April 2019
Systemic Oxaliplatin or Intra-arterial Chemotherapy Combined With LV5FU2 and an Target Therapy in First Line Treatment of Metastatic Colorectal Cancer Restricted to the Liver

Colorectal cancer is the 3rd most common cancer in France and the 2nd cause of death from cancer. Between 30 to 60% of patients develop limited or predominant liver metastases. Surgical resection of these metastases, only curative treatment is not immediately possible in 10-15% of cases. In unresectable patients, current palliative treatments are based on systemic chemotherapy associated or not with the targeted therapies (anti-EGFR (panitumumab), anti-VEGF (bevacizumab)). In this patient population, special attention was paid to intensified treatment regimens in order to improve their efficiency and improving the tumoral response rate, the intensity of the response and its earliness correlate with improved overall and progression-free survival. The intra-arterial use of oxaliplatin coupled with IV chemotherapy has yielded OR levels of 64% in patients having survived one or more lines of chemotherapy IV and 62% in patients who have progressed on oxaliplatin IV. In addition, the HIA administration of oxaliplatin limits systemic and especially neurological toxicities, thanks to a greater hepatic clearance. In conclusion, the combination of systemic chemotherapy, targeted therapy and HIAC with oxaliplatin has showed promising efficacy results associated with good tolerance from the first line onwards. Indeed, we can expect from the Phase II recent data, a control rate close to 100%, with high response rates associated with early maturity and depth responses as well as prolonged survival. However, to date, in the absence of randomized trial testing this combination, this strategy does not have sufficient evidence to be integrated in our routine practices, and HIAC remains limited to a few expert centers in treatment catch-up.

Start: December 2016
Analysis of Intestinal Microflora Combined With DNA Methylation in Stool to Detect Colorectal Cancer

Introduction: Colorectal cancer (CRC) has the third highest incidence rate and the fourth mortality rate in the world. Traditional colonoscopy as an invasive examination method cannot be widely used in screening for colorectal neoplasia. The fecal immunochemical test has some limitations in sensitivity. Also, race and regional differences may affect results. Abnormality in the composition of the gut microbiota has been implicated as a potentially important etiologic factor in the initiation and progression of colorectal cancer. Analyzing fecal flora and exfoliated cell genes may represent a new screening tool for colorectal cancer.This research aims to use 16S rRNA to compare differences in fecal flora between colorectal cancer patients and healthy controls. These data combined with DNA findings of fecal exfoliated cells may further clarify this difference to build a model for screening early colorectal cancer in Chinese people. Methods and analysis: In total, 300 patients with positive colonoscopy results and 200 health controls will be recruited. All participants will complete an information form and questionnaires. Fecal samples will be examined by 16S rRNA analysis. Gene methylation levels will be detected in fecal exfoliated cells. Models of related intestinal microbiota and methylation genes will be built. Receiver operating characteristic (ROC) curve analysis will be used to select some models with appropriate sensitivity and specificity.The models will be further validated by multicenter studys.

Start: February 2018