View clinical trials related to Rectal Neoplasms.
Filter by:In this study, investigators apply a radiopathomics artificial intelligence (AI) supportive model to predict neoadjuvant chemoradiotherapy (nCRT) response before the nCRT is delivered for the patients with locally advanced rectal cancer (LARC). The radiopathomics AI system predicts individual tumor regression grading (TRG) category based on each patient's radiopathomics features extracted from the Magnetic Resonance Imaging (MRI) and biopsy images. The predictive power to classify each patient into particular TRG category will be validated in this multicenter, prospective clinical study.
Main objective: To evaluate the bidirectional relationships between physical exercise and sleep parameters, as a part of multimodal prehabilitation intervention, on pre- and postoperative outcomes in surgical patients with colorectal cancer, in an RCT. Secondary objective: to determine whether the levels of anxiety and depression affect these relationships. Objectives are based on the overarching hypothesis that is sleep and physical activity influence each other through complex, reciprocal interactions including multiple physiological and psychological pathways. To achieve this, providing a multimodal prehabilitation, specifically physical exercise, involved in mental and physical health through different mechanisms, i.e., improving physical functioning and fitness, reducing side effects of cancer treatments, preventing bone loss and weight gain, improving the quality of life and sleep, decreasing symptoms of fatigue and depression. The present is a pilot study aiming to evaluate the bidirectional relationships between sleep and physical exercise, and the preliminary outcome has important implications for informing both clinical and public health practice. Research question: Does a multimodal intervention including physical exercise improve sleep quality and duration compared to standard of care, during the perioperative period? Conversely, does a better sleep quality and duration increases the level of physical exercise during the perioperative period? How the level of anxiety and depression will affect these relationships? If the Prehabilitation program specifically physical exercise will positively affect sleep quality and duration after surgery, in the way to be a protective factor of sleep to not be reduced by up to 55% compared to those receiving standard of care?
This is an observational research study. Patients with rectal cancer can choose different courses of treatment. This study will follow these patients over the course of approximately six years, depending on their treatment. Patients will be monitored through clinic visits and survey assessments to see how they do, how they feel regarding their treatment choices, and their outcomes. The surveys will analyze the impact of the patients' treatment choices, as well as patient adherence, in a rural setting.
Backgrounds: A multicenter randomized phase III trial (NCT02605265) proved that adding irinotecan guided by UGT1A1 to capecitabine-based neoadjuvant chemoradiotherapy significantly increases complete tumor response. The treatment toxicities were increased but tolerable. Purposes: This study aims to identify the predictive biomarkers (from patients' tumor biopsy samples and peripheral blood samples before neoadjuvant therapy) for predicting the response and toxicities to neoadjuvant therapy to stratify patients and optimize treatment strategy.
The recently developed liquid biopsy technology (to obtain and characterize tumour cells and tumour components like Deoxyribonucleic acid (DNA) or Ribonucleic Acid (RNA) from a simple blood draw), in combination with advanced Magnetic Resonance Imaging techniques (MRI), can tackle the following problems in rectal cancer: 1. Assessment of tumour heterogeneity from liquid biopsies. 2. Assessment from advanced MRI feature extraction to indicate poor outcome 3. Faster assessment of therapy response in Neoadjuvant chemotherapy (NAT) for rectal cancer; 4. Detection of emerging drug/therapy resistance. This project's overall objective is to develop and validate technologies and tools to include liquid biopsies in the clinical workflow, aiming at introducing a more precise and dynamic genetic characterization of tumour at the diagnosis and during treatment phases.
Multimodality treatment that comprises preoperative fluoropyrimidine with concurrent radiotherapy followed by total mesorectal excision (TME) surgery and adjuvant fluoropyrimidine-based chemotherapy is recommended as a standard treatment of patients with stage II/III rectal cancer. However, the main target of radiotherapy is local control but no improvement in disease-free survival (DFS) or overall survival (OS) has been shown with this treatment strategy, which leaves approximately 30% of patients in whom distant metastases will develop. Moreover, the short- and long-term adverse effects of radiotherapy such as chronic pain, faecal incontinence and urogenital/anal dysfunction are associated with poor quality of life. Neadajuvant chemotherpay (NACT) alone has been proposed instead of preoperative chemoradiotherapy (CRT) with the aim of elimination of potential micrometastasis as early as possible while avoiding the adverse effects of radiotherapy, without jeopardizing local control. Evidence from the UK CR07 trial suggests that, without RT, a local recurrence rate of 5% (27/543) can be achieved if a complete mesorectal excision is carried out with a negative CRM. A small single-center phase II pilot trial treated patients with stage II or III rectal cancer with induction FOLFOX/bevacizumab chemotherapy followed by CRT only in those with stable or progressive disease and resection in all patients. All 32 of the participants had an R0 resection, and the 4-year DFS was 84%. Another phase II trial, which included 60 patients with stage II/III rectal cancer, assessed the R0 resection rate after FOLFOX plus either bevacizumab or cetuximab. An R0 resection was achieved in 98.3% of the participants, and the pathologic complete response rate was 16.7%. The phase III FOWARC trial, compared neoadjuvant therapy with and without radiation and found that perioperative mFOLFOX6 alone led to a similar downstaging rate as fluorouracil-radiotherapy, and no significant difference in outcomes was found between mFOLFOX6 without radiotherapy and 5-FU- radiotherapy. On the basis of the results of these trials, The investigators hypothesized that radiotherapy could be selectively omitted for patients who respond to NACT alone. The results of TRIBE showed that FOLFOXIRI plus bevacizumab yield a high objective response rate (ORR) (65%), early tumor shrinkage (ETS) (62.7%) and depth of response (DoR) (43.4%) in patients with metastatic colorectal cancer. The investigators were motivated to investigate this triplet-drugs chemotherpay plus bevacizumab both by the possibility of avoiding the toxicities of radiation without compromising local control, and the possibility that earlier introduction of intensive systemic therapy might achieve rapid tumor shrinkage, and improve distant control. The investigators conducted this phase III trial to compare neoadjuvant mFOLFOXIRI plus bevacizumab with selective radiotherapy with induction FOLFOX followed by concomitant chemoradiotherapy in patients with high-risk locally advanced rectal cancer.
This early phase I trial studies how well heated intra-peritoneal chemotherapy with doxorubicin and cisplatin work for the treatment of abdominal or pelvic tumors that can be removed by surgery (resectable), does not respond to treatment (refractory), or has come back (recurrent). Heated intra-peritoneal chemotherapy is a procedure performed in combination with abdominal surgery for cancer that has spread to the abdomen. It involves the infusion of a heated chemotherapy solution that circulates into the abdominal cavity. Chemotherapy drugs, such as doxorubicin and cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Heating a chemotherapy solution and infusing it directly into the abdomen may kill more cells.
Background: Extralevator abdominoperineal excision (ELAPE) may cause various surgical complications including disruption of perineal wound, perineal hernia and adhesive small-bowel obstruction. Pelvic peritoneum reconstruction could prevent those complications, but it may not always be achievable, especially in patients with severe pelvic fibrosis after neoadjuvant radiotherapy. Previous study has reported the application of the pelvic peritoneum reconstruction using the bladder peritoneum flap in laparoscopic ELAPE. The aim of the study is to evaluate the short-term clinical, technical and safety outcomes of pelvic peritoneum reconstruction using the bladder peritoneum flap in laparoscopic ELAPE. Methods/Design: This is a single -center prospective cohort study and fulfill the IDEAL 2A stage principle. Rectal cancer patients after neoadjuvant radiotherapy and about to undergo laparoscopic ELAPE will be included. Main exclusion criteria are being complicated with urgent complications, ASA grade > 3 and accompanied with mental illness. Patients suffering rigid pelvis or huge perineal peritoneum defect, and having difficulty in primary perineal wound closure will be considered eligible for the baldder peritoneum flap (BPF) group; corresponding rectal cancer patients will be allocated to the control group. After informed consent, 10 patients are planned to be included in the BPF group. Standard laparoscopic ELAPE with pelvic peritoneal floor reconstruction using BPF are to be performed. The surgical safety is to be evaluated after one-year follow-up. Primary endpoints are the occurrence of intraoperative and postoperative complications of pelvic peritoneum reconstruction after ELAPE. Second endpoints are overall complication rate within 30 days after surgery, extent of small intestine falling down to pelvic cavity, and other follow-up consequences within 1 year after surgery.
Extramural Vascular Invasion Positive(EMVI+) is a high risk of distant metastasis for locally advanced rectal cancer(LARC) after resection. The study is to evaluate the efficacy and safety of mFOLFOXIRI as neoadjuvant chemotherapy alone for EMVI+ LARC.
Randomized clinical trial of multimodal prehabilitation in vulnerable patients with colon or rectal cancer prior to surgery.