View clinical trials related to Rectal Neoplasms.
Filter by:In initially metastatic rectal carcinoma, a neo-adjuvant multi-drug chemotherapy is usually performed, followed by a pelvic chemoradiation. The surgical indications on both metastases and the pelvic site are then discussed: in the case where a complete (or near-complete) response (CR) of the rectal tumor is observed (10 to 40%), the local surgery may be omitted or poned ("wait-and-see") in a sphincter-sparing strategy, in order to minimize or avoid the surgical morbidity, to focus on metastatic disease by the continuation of chemotherapy, and to preserve a better quality of life. After 8 weeks of induction chemotherapy (mFolfox6 regimen, 4 cycles), the aim of our study is to optimize the chemoradiation step on the distal rectal tumor, thanks to Intensity-Modulated Radiotherapy (IMRT) with simultaneous integrated boost (SIB) (Phase-1 part of the study), concomitantly with oral capecitabine. According to a Fibonacci dose-escalation scheme, 3 radiation dose-levels are defined, up to the definition of the maximal tolerated dose (MTD), requiring the inclusion of a maximum of 20 patients. Further patients will be included at the recommended dose for phase-2 (RDP2) in a two-step phase-2 study, considering simultaneously as principal objective at 12 months, both the efficacy (local CR rate in the range of 10 to 25%) and the tolerance (pelvic radiation disease: grade 3-4 toxicities in the range of 30 to 10%). Overall 65 patients will be included in the phase-2 study at the RDP2 dose.
This study is designed to evaluate the short-term and long-term results after single incision laparoscopic surgery for colorectal cancer（SILSC） compared with conventional laparoscopic surgery for colorectal cancer（CLSC）.
The investigators hypothesize that a primary embolization, 3-4 weeks before surgery, would allow development of vascular collaterality, in particular for the marginal artery which will ensure a better colonic perfusion.
With an increasing number of rectal cancer (RC) survivors, we see a rising attention to the late adverse effects following treatment of RC. Late adverse effects that are highly prevalent and negatively impact patients' symptom burden and quality of life are: bowel-, urological and sexual dysfunctions; psychological distress; fear of recurrence. The current follow-up program primarily focuses on detection of recurrence, with less attention to late adverse effects. In a patient-led follow-up program, the surveillance for recurrent disease is combined with detection and treatment of late adverse effects and supportive survivorship care. The follow-up involves a high degree of patient-involvement, aiming at meeting the individual patient's needs. The patient-led follow-up programme is based on a standardized patient-education in order to enforce the patients to assess and respond sufficiently to symptoms and health problems. In case of symptoms and concerns, the patients are instructed to consult a health professional for adequate assistance and intervention. The intervention is tested in a multicenter randomized trial, comparing the patient-led follow-up to standard routine follow-up, involving prescheduled outpatient visits.
The purpose of this project is to obtain important information about the tumour and surrounding organs during preoperative chemo-radiotherapy for patients with adenocarcinoma of the rectum. The knowledge generated in this project has the potential to make future radiotherapy treatments (RT) of rectal cancer patients more precise, with less side effects. This could lead the way to make chemo-radiotherapy the main treatment modality and spare a large group of patients from the risk of severe complications after surgery. Specifically, we aim to obtain: - A characterization of systematic and random changes in position and shape of tumours and surrounding organs during RT. - A patient-specific pre-treatment characterization of random uncertainties in position and shape of the tumour during radiotherapy. This will be used to create and assess an individual, patient-specific treatment strategy, with the possibility to implement an adaptive RT strategy using the information obtained from the MRI-scans during treatment. - Information about treatment response and local toxicity from morphological and functional data before, during and after CRT.
Application of circulating tumor DNA detection in diagnosis and treatment of locally advanced rectal cancer. First, to explore the feasibility of ctDNA as a detection index for rectal cancer. Second, evaluate the accuracy of ctDNA detection in rectal cancer. Third, to explore whether ctDNA can be used in the evaluation of preoperative concurrent chemoradiotherapy, so as to provide guidance for subsequent treatment. Fourth, to explore the guidance value for the decision of postoperative adjuvant therapy and the frequency of reexamination. Fifth, search for possible recurrence related mutations.
The purpose of this study is to evaluate the results of combined application of left colic artery preservation, anastomotic reinforcing sutures and postoperative transanal tube placement in robotic Low Anterior Resection for Rectal Cancer.
A Randomized, Double-Blind, Placebo-Controlled, Parallel, Multi-Center Study to Assess the Efficacy of BRCX014 Combined with Standard-Of-Care Treatment in Subjects with Glioblastoma Multiforme, Multiple Myeloma, and GI Malignancies
The aim of this study is to determine whether greater rectal cancer downstaging and regression occurs when surgery is delayed to 12 weeks after completion of radiotherapy/chemotherapy compared to 8 weeks. Hypothesis: Greater down-staging and tumor regression is observed when surgery is delayed to 12 weeks after completion of chemoradiotherapy compared to 8 weeks.
Open-label, Phase I-II, first-in-human (FIH) study for A166 monotherapy in HER2-expressing or amplified patients who progressed on or did not respond to available standard therapies. Patients must have documented HER2 expression or amplification. The patient must have exhausted available standard therapies. Patients will receive study drug as a single IV infusion. Cycles will continue until disease progression or unacceptable toxicity.