View clinical trials related to Radiotherapy.
Filter by:Some radiation therapy treatment plans require the use of boluses. Boluses are placed directly on the skin overlying the area to be treated. The radiation beam interacts with the bolus before entering the body and ensures that the correct radiation dose reaches your tumor. The purpose of this study is to determine whether the shortcomings of conventional bolus preparation can be overcome by using a 3D printer. CT scans of the body can be used to create 3D models for boluses. The 3D models can then be printed into plastic boluses using a 3D printer. Preliminary studies have shown that 3D printed boluses conform to body contours better and allow for more precise control over radiation dose. In this study, both a conventional and 3D printed bolus will be made. The Investigators will then simulate treatment with both boluses to determine which bolus will result in more optimal treatment for the participant. The superior bolus will be used in the participant's treatment.
To investigate the efficacy and toxicity of S-1 with concurrent radiotherapy in older patients with esophageal cancer.
Hypoxic modification of radiotherapy with nimorazole has previously been shown to increase radiosensitivity in hypoxic head and neck squamous cell carcinomas (HNSCC). In Denmark, nimorazole is added the radiotherapy of most HNSCC, as it has not previously been possible to discriminate more hypoxic tumours from less hypoxic tumours. A hypoxia gene profile has shown to discriminate between responders and non-responders to nimorazole. In DAHANCA 30, expected hypoxia profile guided non-responders are randomized to +/- nimorazole during radiotherapy.This in order to verify clinical use of the gene profile in selecting the relevant patients for hypoxic modification of radiotherapy with nimorazole.
Patients with Non-small cell lung cancer that had metastatic lesions after been treated with definitive surgery or chemoradiotherapy are being asked to participate in this study. 1. To observe immunity-mediated tumor response outside the radiation field (abscopal effect) after chemoradiotherapy of a metastatic site in metastatic Non-small cell lung cancer patients. 2. To induce the efficacy (effectiveness) of a new combination of therapy, chemoradiotherapy and thymalfasin for heavily pretreated, metastatic Non-small cell lung cancer patients; 3. To explore the role of PET/CT scanning to assess tumor response/abscopal effect. This study will help find out what abscopal effects (good or bad) the combination of radiotherapy and thymalfasin has on metastatic Non-small cell lung cancer.
Patients with small cell lung cancer that had metastatic lesions after been treated with definitive surgery or chemoradiotherapy are being asked to participate in this study. 1. To observe immunity-mediated tumor response outside the radiation field (abscopal effect) after chemoradiotherapy of a metastatic site in metastatic small cell lung cancer patients. 2. To induce the efficacy (effectiveness) of a new combination of therapy, chemoradiotherapy and thymalfasin for heavily pretreated, metastatic small cell lung cancer patients; 3. To explore the role of PET/CT scanning to assess tumor response/abscopal effect. This study will help find out what abscopal effects (good or bad) the combination of radiotherapy and thymalfasin has on metastatic small cell lung cancer.
In metastasized of locally advanced breast cancer patients, local problems often occur like skin metastases, ulcerations or lymph node metastases. These problems are related to a worse quality of life, while overall survival is generally in the order of months to years. Treatment of these lesions is challenging, especially after failure of first or second line systemic therapy. Local treatments, like radiation, are able to give short-term palliation, but the effect is often disappointing in the long run. Therefore, the search for new therapeutic strategies like the combination of local and systemic treatments is emerging. Recent investigations clearly show that radiation is capable of inducing a systemic anti-tumor response. Both in mouse models and in patients, it was reported that irradiating one metastasis can slow down the growth of other non-irradiated metastases. This effect is called the "abscopal effect" and is immune-mediated. There are also several chemotherapeutics that are capable of influencing the immune response like cyclophosphamide. Cyclophosphamide is a known inducer of immunogenic cell death, which leads to the activation of dendritic cells and thus the presentation of antigens. In this pilot study the investigators wish to identify the immunological effects of combined treatment with radiation and cyclophosphamide in breast cancer patients. Five patients with metastasized breast carcinoma will be treated with the combined treatment and the immunological effects will be monitored using repeat blood draws and biopsies. These effects will be correlated to the clinical response.
Aims: 1. Evaluate changes in lung function before and after radiotherapy for patients with NSCLC in stage I-III receiving curatively intended radiotherapy 2. To assess the predictive value of pulmonary function tests for the development of radiation pneumonitis after curative radiotherapy 3. To assess biomarkers in blood samples before, during, and after radiotherapy and correlate to the development of radiation pneumonitis 4. Investigate survival
An open-label, non-randomized study to assess the titration, safety and efficacy of intranasal fentanyl pectin nasal spray for the treatment of secondary breakthrough pain secondary to radiation-induced mucositis in patients with confirmed tolerance of opioid therapy for chronic pain. Study objectives include assessment of breakthrough pain episodes related with food intake in patients with mucositis secondary to radiotherapy or radio-chemotherapy for head and neck tumors
Cerebral radiation necrosis (CRN) is a well-documented late complication of radiation therapy for cancers, and may have a devastating effect on the patient's quality of life (QOL). However,CRN was once regarded as a progressive and irreversible disease, no standard therapy has been suggested for CRN. In our clinical practice, we have used monosialotetrahexosylganglioside (GM1)to treat CRN, and found that GM1 can successfully reverse CRN. So we carried out this prospective study to test the efficacy of GM1 for CRN.
This study will evaluate the role of cyclooxygenase pathways in radiation-induced and chemoradiation-induced mucositis.