View clinical trials related to Rectal Neoplasms.
Filter by:Many data suggest that patients with low rectal adenocarcinoma who achieved ypT0N0 status have improved survival and disease-free survival (DFS) compared to all other stages however only few data are available regarding the specific prognosis factors of this subgroup. This retrospective multicentric study aimed to predict the prognosis of patients with complete pathological response after neoadjuvant treatment.
Compared to postoperative chemotherapy combined with radiotherapy, preoperative chemotherapy combined with radiotherapy shows higher sphincter preservation rate and lower local recurrence rate in locally advanced rectal cancer. The purpose of this study is to evaluate the response and prognosis of intraarterial chemoembolization and intravenous infusion chemotherapy in patients with rectal T3-T4 and/or N+ rectal cancer before operation.
This study compared robot-assisted total mesorectal excision to treat very low rectal cancer within 2 cm from the dentate line to avoid permanent colostomy. improves the quality of life with better defecation function, urinary function and sexual function.
The hypothesis of the study is that high intensity focused ultrasound (HIFU) can be used safely to treat rectal and pelvic cancer. The study consists of two trials exploring the use of HIFU in rectal and pelvic cancer to establish the safety and potential efficacy of HIFU in this instance. The first trial is a feasibility study looking at patients with early rectal cancer. We aim to recruit thirty patients with early rectal cancer who are due to undergo an operation to remove their cancer. After recruiting and consenting them for the trial, we will treat their rectal cancer with HIFU. Approximately one week after treatment they will undergo their normal cancer operation. This will allow us to demonstrate the safety of HIFU as a treatment for rectal cancer and evaluate the changes in rectal and surrounding tissue under the microscope after the cancer is treated with HIFU. In addition, we will monitor patients for any complications and the impact this treatment has on their quality of life. We will monitor the response of various markers for cancer with blood tests. The second trial aims to evaluate the treatment of a cohort of patients with inoperable rectal cancer. We aim to recruit thirty patients with either inoperable pelvic cancers - rectal, cervical or endometrial, or cancers that have returned after previous operations. We will offer these patients treatment of their cancer using HIFU. We will monitor the symptoms they experience and impact on their quality of life both before and at multiple time points after the treatment with HIFU. We will compare MRI scans before and after treatment to evaluate the effect HIFU has in reducing the size of the cancer. We hope to show that using HIFU in this group of patients can be both effective and lead to an improvement in both their symptoms and quality of life.
This pilot trial studies how well active surveillance and chemotherapy before surgery work in treating participants with stage II-III rectal cancer. Active surveillance involves monitoring participants for additional tumor growth after receiving cancer treatment. Drugs used in chemotherapy 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. It is not yet known whether deferring surgery after active surveillance and chemotherapy will work better in treating participants with stage II-III rectal cancer.
This phase II trial studies how well savolitinib works in treating patients with MET amplified colorectal cancer that has spread to other places in the body (metastatic) or cannot be removed by surgery (unresectable). Savolitinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
This is a prospective randomized controlled study that was conducted on patients of both sexes and definite age group at National Cancer Institute-Egypt and with adenocarcinoma of the rectum located within 15 cm from the anal verge. Tumor localization was categorized as the upper rectum (distal border of tumor is from 10 to 15 cm from the anal verge), middle rectum (5 to 10 cm from the anal verge) or lower rectum (less than 5 cm from the anal verge) as measured by colonoscopy and digital rectal examination. Patients were classified into two groups; robotic assisted rectal surgery and conventional laparoscopic rectal surgery.Baseline demographics (gender, age, ASA, BMI), preoperative data (distance of the tumor from the anal verge, clinical stage, whether preoperative chemoradiation (CRT), presence of residual tumor after CRT, intraoperative data (preparation time, actual operative time, estimated blood loss, conversion rate to open surgery), postoperative data (pathological stage, number of harvested lymph nodes, macroscopic completeness of resection in the form of proximal margin, distal margin, circumferential radial margin) and immediate postoperative outcome within one month (days of return of bowel function, days of hospital stay, complications, if any, like anastomotic leakage, ileus,wound problems and others, rate of re-operation, rate of readmission & 30-days mortality) were analyzed and compared.The criteria for patients selection were the following: histological diagnosis of adenocarcinoma of rectum, no anesthesiological contraindications to minimally invasive surgery, age ≤ 75 years, American Society of Anesthesiologists (ASA) ≤ 2 & the procedures performed by the same surgical team. Patients with metastatic disease, malignant bowel obstruction and those with irresectable tumor were excluded from our study.Preoperative workup (endoscopy with biopsies, radiological imaging including pelvic MRI, liver ultrasound, chest X-ray and routine abdominal and digital rectal examinations) was routinely carried out. The assignment of patients to either group was done by a permuted block randomization. It was an open-labeled study. The study was approved by the institutional review board of National Cancer Institute-Cairo University. All patients provided written informed consent.
Treatment for Low rectal cancer, especially in patients with regional lymph node metastasis are quite different between Japanese guideline (JSCCR) and western countries' guideline (NCCN, ESMO). While Japanese scholars advocate total mesorectal excision (TME) plus lateral lymph node dissection (LLND), European and American scholars advocate TME alone after Neoadjuvant Chemo-radiotherapy (nCRT), without the need of LLND. Accordingly, this clinical trial is designed to directly compare the efficacy and safety of these two treatment strategies for low rectal cancer with regional lymph node metastasis. It will provide high-level clinical evidence for the treatment of low rectal cancer with suspected local lymph node metastasis
This is a randomized multicentric clinical trial in patients affected by resectable rectal cancer, cT2N1-2, cT3N0-2, MRF -, aiming to evaluate the impact of the interval between chemoradiotherapy and surgery on the pathological response. Patients will undergo a neoadjuvant chemoradiotherapy treatment and those achieving a major or complete clinical and instrumental response will then be randomized and submitted to surgery with two options: the first group will be operated after an interval of 9-11 weeks, while the second will undergo surgery at 13-16 weeks, after a further clinical and instrumental re-evaluation 11-12 weeks after the end of chemoradiotherapy.
Patients with locally advanced rectal cancer will receive biopsy before the standard treatment of neoadjuvant chemoradiation. The investigators are going to establish organoids model from the pre-treatment biopsies and expose organoids to irradiation and the same chemotherapy drugs. The sensitivity of irradiation and chemotherapy drugs will be tested in the organoids model. Here, the investigators will launch the observational clinical trial to validate whether the organoids could predict the clinical outcome in locally advanced rectal cancer patients underwent neoadjuvant chemoradiation.