View clinical trials related to Rectal Neoplasms.
Filter by:The purpose of this study was to evaluate the effect of concurrent capecitabine-based long-term radiotherapy followed by 4 cycles XELOX pre- a delayed TME compared with 6 cycles XELOX post- a Regular Timing TME in patients with high-risk rectal cancer defined by MRI.
In this study, we aim to investigate the value of circulating tumor DNA (ctDNA) analysis in the diagnosis, treatment, and surveillance of patients with surgically resectable colorectal cancer, by performing serial analysis of ctDNA, next-generation sequencing of surgical specimens, and observation of patients undergoing radical resection of the tumor with or without adjuvant chemo- and/or radiotherapy.
The objective of the TransValid-KFO179/GRCSG-Trial-A is the validation of potential biomarkers. These are predictive (Prediction of probability of response to a certain therapy) / prognostic (predicting long-term outcome) microarray-based gene expression signatures and immunohistochemically evaluated biomarkers. The evaluation was done within the KFO179 (www.kfo179.de) - the validation is implemented in this trial. Therefore tumor material of patients undergoing standard radiochemotherapy will be analyzed from pretreatment biopsies an residual tissue from the resection specimen after surgery. This validation and the biomaterial asservation will be incorporated into clinical routine in all participating centers as a model for the treatment of solid tumors. The obtained biomarkers with a predictive and prognostic power will be used to develop an algorithm to predict patients at high risk of local and distant cancer recurrence.
The purpose of this study is the increase of resection rate of primary cancer in rectal after short course radiotherapy without interrupt chemotherapy schedule during the period of chemotherapy. Radiation therapy is followed by additional chemotherapy to prevent the progression of systemic metastasis, and to reduce the incidence of rectal carcinoma including metastasis.
We explored the relationship between NLR and grade 3 or higher treatment related small bowel toxicity and treatment outcome of patients with rectal cancer undergoing capecitabine and concurrent intensity modulated radiotherapy (IMRT).
Laparoscopy colon surgery is accepted worldwide in the recent years. But there is still argument on the effect of laparoscopy rectal surgery. Laparoscopy has advantages on showing the inferior mesenteric artery (IMA), protection of autonomic nerve, low rectal anastomosis, and total mesorectum excision. However, debate on the level of IMA ligation and debonding of splenic flexure never ends. This study is going to give a clear and definite answer to how and why surgeons should deal with the IMA in laparoscopy rectal surgery，base on the 3D reconstruction of IMA and identification of IMA perfusion types.
This research plans to collect rectal cancer patients after sphincter-preserving surgery from 14 institutions in China mainland, observe the incidence and risk factors about bowel dysfunction after operation.
Patients with rectal adenocarcinoma of intermediate risk (defined by magnetic resonance imaging [MRI]), without mutations in KRAS, BRAF, NRAS and PI3KCA, who are candidates for preoperative treatment, will receive a preoperative Induction therapy with 12 weeks of panitumumab with mFOLFOX-6 to evaluate the efficacy in terms of pathologic complete response (pCR)
This is a single-center prospective clinical trial to evaluate non-inferiority of indocyanine green guided sentinel lymph node biopsy compared with the gold standard Technecium99 guided sentinel lymph node biopsy in patients with cancers and subjected to surgery. The diagnostic performance and the tolerance of indocyanine green (ICG) to the radio-isotope (Techniciun99) in the detection of sentinel lymph nodes will be assess using an "Optonuclear" probe (EURORAD S.A.) and QUEST camera
The aim of this multicenter phase II study is to evaluate the response rate, local control, disease-free survival and treatment-related toxicity of preoperative chemoradiation for intermediate or locally advanced rectal cancer in the fit elderly.