Active clinical trials for "Rectal Neoplasms"

This phase Ib/II trial studies the side effects and best dose of pan fibroblast growth factor receptor (FGFR) kinase inhibitor BGJ398 when given together with fluorouracil, irinotecan hydrochloride and oxaliplatin (combination chemotherapy) in treating patients with untreated pancreatic cancer that has spread to another place in the body. Pan FGFR kinase inhibitor BGJ398 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as fluorouracil, irinotecan hydrochloride and oxaliplatin, 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. Giving pan FGFR kinase inhibitor BGJ398 together with fluorouracil, irinotecan hydrochloride and oxaliplatin may be a better treatment for pancreatic cancer.

This is a phase II, prospective open label multi-center study in which subjects with stage II-III rectal cancer will be accrued in order to determine the pathological complete response rate of neoadjuvant pembrolizumab in combination with chemoradiation treatment (CRT). Subjects must have a diagnosis of rectal cancer, stage II (T3-4, N0) or stage III (any T, N1-2). Subjects must have received no prior treatments (chemotherapy, pelvic radiation or surgery) for their rectal cancer. Eligible subjects will receive standard chemoradiation with pembrolizumab administered every 3 weeks on days 1, 22, and 43 of the neoadjuvant interval. In all subjects, restaging endorectal or pelvic MRI with chest and abdominal CT will be performed at 6-8 weeks after completion of neoadjuvant treatment to determine resectability and to rule out any evidence of metastases. Subjects who have resectable disease will undergo surgery within 2-4 weeks of imaging; 8-12 weeks after completion of chemoradiation. Subjects who are found to have unresectable or metastatic disease post treatment with the combination of CRT+ pembrolizumab should receive standard of care definitive treatment per the discretion of their treating physician.

This study evaluates the safety and performance of SGM-101, a Carcinoembryonic Antigen (CEA)-specific chimeric antibody conjugated with a NIR emitting fluorochrome, for the visualization of CEA-expressing cancers during surgery. SGM-101 is injected 2 to 4 days before surgery and visualized using an optimized camera system.

Colonoscopy is currently accepted as the gold standard in screening, surveillance and prevention for colorectal cancer (CRC), and therefore, its quality is a major priority. The quality of colonoscopy is greatly dependent on the quality of the bowel preparation. Standard bowel cleansing includes a low-fibre diet on the day preceding the exam and a split regimen of 4 litres of polyethylene glycol (PEG) solution. In order to improve bowel cleansing some additional measures are available. Simethicone is an inexpensive and safe antifoaming agent that reduces the surface tension of air bubbles, theoretically presenting several benefits such as increased tolerability to the preparation, thereby improving the quality of the preparation and, secondly, adenoma detection (ADR) and cecal intubation rates (CIR). However, its role remains controversial, with some publications supporting its administration and others failing to demonstrate clear benefits. The main aim of this study is to assess if addition of simethicone to a split-dose cleansing regimen of 4 litres of PEG improves adequate bowel preparation rate.

Treatment of patients with locally advanced rectal cancer (LARC) is multidisciplinary and consists of neoadjuvant chemoradiotherapy (nCRT) followed by surgical removal of the rectal tumor and potentially tumor positive lymph nodes. After surgery, in 15 to 27% of patients that received nCRT no tumor cells can be detected during histopathological examination. In today's clinical practice, all of these patients with a pathological complete response (pCR) are operated upon, with substantial morbidity and mortality. The 5-year survival is 83.3% for patients with a pCR, and 65.6% for those without pCR. Response after nCRT is currently evaluated using magnetic resonance imaging (MRI). However, as MRI cannot differentiate between molecular characteristics of tissue, prediction of treatment response can be inaccurate. In patients with a potential cCR on MRI, additionally a high-definition white-light (HD-WL) endoscopy is performed with biopsies of the previous tumor location. If both MRI and HD-WL endoscopy confirm a potential cCR, patients can also be treated with a watch-and-wait approach, including frequent follow-up with HD-WL endoscopy and MRI. This potentially prevents extensive surgical procedures for patients in which this is not required. However, MRI and HD-WL endoscopy often remain insufficient for identification of cCR. Therefore, novel imaging methods are needed for accurate prediction of treatment response in order to select patients. The investigators believe fluorescence molecular endoscopy (FME) could be a promising technique for evaluation of treatment response. During surgery, tumor-negative resection margins are of great prognostic value. Currently, surgeons rely on visual and tactile inspection for differentiation between malignant and healthy tissue. When in doubt, a frozen section can be obtained, which is time consuming and poses a high risk of sampling error. However, 14.7% of patients still have tumor-positive resection margins, increasing the risk of local recurrence and worsening outcome. Therefore, there is a need for novel imaging techniques that can be used intraoperatively to improve margin assessment. The investigators believe molecular fluorescence-guided surgery (MFGS) could be a promising technique for evaluation of resection margins.

This pilot clinical trial studies short-infusion ziv-aflibercept in treating patients with metastatic colorectal cancer receiving combination chemotherapy. Ziv-aflibercept may stop the growth of colorectal cancer by blocking blood flow to the tumor. Giving the drug over a shorter infusion time may result in improved efficiency and patient satisfaction.

Standard treatment for rectum cancer is a pre-surgery course of external beam radiotherapy given with chemotherapy at the same time. External beam radiation can increase side effects both short and long-term by exposing normal tissue nearby the tumor such as the bladder, bowel and sexual organs. Instead, this study will use a different way of delivering radiation called brachytherapy to decrease normal tissue radiation exposure. Patient will be given three chemotherapy medications both before and after surgery: oxaliplatin (also called EloxatinTM) in combination with 5-fluorouracil (5-FU) and leucovorin (also called Folinic Acid). The purpose of this study is to find out whether giving chemotherapy and brachytherapy before surgery can: 1) enable patient's surgeon to successfully remove tumor 2) lower the risk of tumor recurrence 3) avoid patient having the side effects related to chemotherapy and external beam radiation therapy and 4) improve patient's ability to complete chemotherapy.

The purpose of this study is to evaluate the accuracy of Positron emission tomography, Computed Tomography perfusion and 3 Tesla MRI in the radiological down-staging of rectal cancer following neoadjuvant chemoradiation. The restaging result obtained by these imaging studies will be compared to standard imaging studies and the histopathology of the surgical specimen. We hypothesize that these 3 imaging modalities will detect lymph node metastases pretreatment better than standard pretreatment scans and will better determine the degree of response of the primary rectal tumor to preoperative chemoradiation.

One of the major problems of rectal cancer surgery is pelvic autonomic nerve damage, which is the main cause of urogenital dysfunction influencing postoperative quality of life. Costs for diagnostics and treatment of short and long-term urogenital dysfunction are immense. Varying degrees of urogenital dysfunction are found in up to 32% and 55% of patients with rectal cancer despite potentially nerve-sparing total mesorectal excision (TME). The study will examine the impact of a newly developed continuous monitoring device for preservation of urogenital function in patients with TME for rectal cancer. 188 patients will be included in the prospective, randomized, single-blind, parallel group multi-centre trial including two arms (TME with and without intraoperative continuous monitoring of pelvic autonomic nerves). The primary efficacy endpoint is the change in urinary function measured by International Prostate Function Score (IPSS) 12 months after surgery. Genital functions measured as secondary endpoints. The application of the continuous intraoperative neuromonitoring device could enhance the objective intraoperative confirmation of pelvic nerve sparing surgery. The investigators hypothesis is that the use of his device minimizes the risk of postoperative urogenital dysfunction in patients with TME for rectal cancer. An enormous reduction of treatment costs is to be expected.

The following project deals with a Danish multicenter trial that evaluates the value of Laparoscopic Ultrasound examination (LUS) in laparoscopic surgery for colon and rectum cancer (CRC). The project "The value of laparoscopic ultrasound in patients undergoing laparoscopic resection for colon and rectum cancer. - A prospective randomized trial" is part of a ph.d- study at the University of Southern Denmark in collaboration with several surgical departments at hospitals in Southern Denmark. The primary purpose is to investigate whether the use of laparoscopic ultrasound examination (LUS) will change the stage of the tumor, lymph node and metastasis (TNM stage) and the surgical approach in patients undergoing laparoscopic surgery for colorectal cancer (CRC). As a secondary objective; an evaluation of the use of LUS will change the treatment strategy for the individual patient with CRC. As an other objective we wants to investigate whether the use of contrast enhanced ultrasound examination in connection with LUS procedure increases the number of detected liver metastases.