View clinical trials related to Chemoradiation.
Filter by: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.
This study is to determine if an oral drug called Ramipril can lower the chance of memory loss in patients with glioblastoma getting chemoradiation. Patients will take Ramipril during chemoradiation and continue until 4 months post-treatment. Memory loss will be assessed using several neurocognitive tests throughout the duration of the study.
The ENSURE study will comprise two phases. Phase 1: European multicenter survey of surveillance protocols after esophageal cancer surgery ENSURE questionnaire will be circulated to representatives from participating European countries. Phase 2: European multicenter retrospective observational study of the impact of postoperative surveillance protocols on oncologic outcome and HR-QL Phase 2 will constitute a retrospective observational study of patients undergoing treatment with curative intent for esophageal cancer at participating Centers from June 2009 to June 2015.
Gastric cancer is one of the most common malignant tumors in China, and the incidence and mortality rate are second in malignant tumors. The treatment of gastric cancer need integrated multidisciplinary treatment, and surgery is the only possible curative method for gastric cancer at present. Previous studies have reported that neoadjuvant chemoradiotherapy can downstage primary tumor to increase radical resection rate in order to improve the long-term prognosis of advanced gastric cancer. However, there is no study on the application of hypo-radiotherapy to neoadjuvant radiotherapy in gastric cancer. The aim of this study was to observe the maximum tolerated dose (MTD) and dose limited toxicity (DLT) of hypo-fractionated radiotherapy for locally advanced gastric cancer.
The aim of this observational study is to retrospectively collect survival data for 3000 primary esophageal cancer patients from multicenter between January 2000 to present. Based on a Cox model, we want to develope a nomogram that predicts local recurrence, distant metastases, and survival for patients treated with radiotherapy or chemoradiotherapy with or without chemotherapy.
Rationale: Current standard treatment of localized esophageal cancer (EC) with neoadjuvant chemoradiotherapy (nCRT) followed by esophagectomy with curative intent results in 30% complete, 40-60% partial and 20% no-response at pathologic examination. Clinical response of nCRT is usually evaluated with PET-CT. However, response measurements are currently still insufficient in optimizing EC treatment. Proper pre-surgical response prediction may allow individualized treatment with esophagus-preservation in complete responders or switching to an alternative treatment in non-responders. Interestingly, in many tumors, a subset of cells has been found to possess cancer stem cell (CSC) properties with associated signaling as drivers of tumor (re-)growth and therapy resistance. Response of CSC-derived tissue resembling in vitro cultured tumor organoids may reflect patient's tumors sensitivity to therapy. Objective: To create a patient derived organoid model for EC patients to predict the pathologic tumor response to nCRT in clinical practice. This will allow a more personalized approach in future treatment of locally advanced EC. Study design: Fresh esophageal tumor material will be collected during diagnostic endoscopic ultrasound (EUS) in participating patients. These biopsies will be used to select cancer stem cells, which will be cultured to derive organoids (esophageal cancer patient derived organoids; EC-PDO). When the EC-PDO contain sufficient cells, these cells will be treated with radiotherapy and/or chemotherapy in order to obtain dose-response curves. The response of these EC-PDOs will be compared to the actual tumor response to nCRT treatment in these EC patients, which will be assessed at the definitive pathologic examination of the resection specimen after esophagectomy with curative intent. Study population: All patients with curatively treatable and resectable esophageal cancer (adenocarcinoma or squamous cell carcinoma) can be included in this trial. Main study parameters/endpoints: The main endpoint is response prediction to chemoradiotherapy by EC-PDO; the steepness of the dose response survival curve in the organoids in relation to the pathologic response after resection in the clinical situation. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The patients will be asked to undergo 3 to 6 additional biopsies during endoscopic ultrasonography (EUS) for the TNM staging of the tumor. The risk of these additional biopsies is not greater than the biopsies for the diagnosis of EC. The patient will not benefit from participation in this trial. For the future approach we can get more insight into the mechanism of (chemo)radiation response or resistance to nCRT, which might lead to a better patient selection and more individualized esophageal cancer treatment in the future. This improvement in selection and treatment can result in less over or under-treatment of these EC patients.
Simultaneous integrated boost (SIB), a field-in-field escalation technique, has been introduced to deliver higher radiation dose to the certain part of target with the same fractionation scheme. The aim of this study was to investigate the value of chemoradiation (CCRT) using SIB in glioblastoma and the correlation with surgical extent.
The benefit of aspirin in cancer of the colon and rectum is already known. Recently, it was described its potential activity during chemoradiotherapy, with higher rate of tumor downstaging. Furthermore, induction chemotherapy followed by chemoradiation represents an attractive approach, with more favorable compliance and toxicity profiles. The aim of this study was to evaluate the efficacy of total neoadjuvant treatment and assess the efficacy and feasibility of aspirin use during chemoradiotherapy for high-risk rectal cancer.
The aim of this study is to evaluate the feasibility and the effect of daily, individual, supervised and structured exercise training before radiotherapy in patients diagnosed with Non-Small Cell Lung Cancer. Primary outcome is maximal oxygen uptake (VO2peak). The hypotheses are that patients who undergo daily exercise training will increase VO2peak, functional capacity (measured by 6-minute walk test (6MWD)) and lung function (forced expired volume in one second (FEV1)).
Pancreaticoduodenectomy is associated with high perioperative morbidity, with surgical site infection (SSIs) being one of the most common complications. A retrospective study at Hopkins on SSIs in these patients identified the rate of SSIs to be 16.7% and pre-operative bile stent/drain and neoadjuvant chemotherapy were independent predictors of surgical site infection. Patients with these factors having a predicted risk of up to 32%. Another subsequent retrospective study demonstrated that the use of negative pressure wound therapy device was significantly associated with a decrease in the rate of SSIs. The hypothesis of the investigator(s) for the current study is that placement of Prevena Peel & Place Dressing (Negative Pressure Wound Therapy, NPWT) in patients undergoing pancreaticoduodenectomy who are at high risk of SSIs will result in a significant decrease in their SSI rate.