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Showing 1-20 of 37 trials
NCT07481786
This is a phase 3, randomized, controlled clinical trial comparing two brain-directed treatment strategies for adult patients with extensive brain metastases from lung adenocarcinoma. The trial compares fractionated stereotactic radiotherapy combined with bevacizumab (FSRT-Bev) versus hippocampus-avoidant whole-brain radiotherapy with simultaneous integrated boost (HA-WBRT-SIB). The main objectives are to evaluate intracranial tumor control and preservation of neurocognitive function . Patients will be randomly assigned in a 1:1 ratio to receive either FSRT plus bevacizumab or HA-WBRT-SIB. In the experimental group, FSRT is delivered to visible brain tumors over 5 daily treatments (total 30 Gy, 6 Gy per fraction). Bevacizumab is given intravenously every 3 weeks for 4 cycles. In the control group, patients receive hippocampus-avoidant whole-brain radiation (25 Gy) with a simultaneous dose boost to metastatic lesions (40 Gy total) over 10 daily treatments.
NCT07325721
This study is for adult men with previously untreated high risk, very high risk, or pelvic lymph node positive prostate cancer. The purpose of this study is to evaluate the safety and effectiveness of the combination of two emerging radiation treatment techniques (hypofractionated radiotherapy and microboost technique). Participation will include standard of care visits along with questionnaires and blood draws completed for research purposes. There is optional banking of blood and prostate biopsy tissue which will not require extra biopsies. Participation in this study is anticipated to last approximately 6 weeks with follow up every three months for two years then twice yearly for years 3-5.
NCT05926765
This study will assess the efficacy and safety of bilateral intra-parotid administration of AAV2-hAQP1 in adults with Grade 2 or Grade 3 radiation-induced late xerostomia.
NCT07365124
The aim of this study is to learn whether using MRI (magnetic resonance imaging) scans to plan radiotherapy is better than using CT (computed tomography) scans alone. The main questions it aims to answer is: * Can MRI scan images be adjusted to make the tumour and normal tissues easier to see? * Does adding MRI to a radiotherapy planning CT make the radiotherapy plan more precise? * Can MRI be used to adjust a radiotherapy plan during a course of treatment to make it more precise, and might that reduce the side effects? * Are there particular MRI scans that can predict how a tumour will respond to radiotherapy or how likely the patient is to have side effects? This study will assess current MRI scanning procedures and ensure these are adjusted to best suit radiotherapy planning. It will also provide pilot data evaluating: 1. MRI-adapted radiotherapy Usually, radiotherapy plans are based on a pre-treatment planning CT scan. Unless an issue is detected the patient would complete their whole course of radiotherapy on this plan. This does not account for changes in position/size/shape of the tumour that occur over the whole treatment course. Clinicians therefore increase the size of the tumour/target to account for these uncertainties, which can increase side effects. This study will assess the potential to reduce side effects from radiotherapy by using repeat MRI scans and replanning during the treatment course (MRI-adaptive radiotherapy). 2. Imaging biomarkers MRI sequences can be used to predict response to radiotherapy or chance of developing side effects. This study will identify potential MRI sequences that may be used as imaging biomarkers, to guide the development of future clinical trials. The study will be undertaken at SBUHB, lasting 4 years, and involving ≤15 healthy volunteers and ≤150 patients.
NCT07289646
Stereotactic body radiotherapy (SBRT) has an increasing role in the treatment of both primary and secondary lung tumors. However, lung SBRT remains associated with significant radiation induced lung injury (RILI). Indeed, the reported incidence of symptomatic radiation induced lung injury (grade≥2) in the published literature is up to 20%. A current challenge of lung SBRT is therefore to better preserve lung function and to reduce pulmonary toxicity. During standard lung SBRT planning, dose constraints are defined on the anatomical lung volume. This planning considers the lung as functionally uniform and does not take into account the variability of regional lung function distribution. Functional lung avoidance is an emerging concept in lung radiotherapy (RT). The technique aims at personalizing RT treatment planning to individuals' lung functional distribution, by sparing functional pulmonary areas while prioritizing delivery of high doses to non-functional regions. 68Ga-MAA lung perfusion PET/CT is a novel imaging modality for regional lung function assessment. As compared with conventional lung scintigraphy, lung perfusion PET/CT is inherently a vastly superior technology for image acquisition (higher sensitivity and spatial resolution, greater access to respiratory gated acquisition). A more accurate lung functional mapping improves the possibility of functional lung avoidance planning for SBRT. The hypothesis is that functional lung avoidance planning guided by 68Ga-MAA perfusion PET/CT, while delivering an optimal dose to the tumor, will reduce the frequency of RILI in patients treated with lung SBRT.
NCT05167994
To investigate the safety and efficacy of preoperative IMRT and concurrent Anlotinib Hydrochloride for primary truncal or extremity soft tissue sarcoma; To investigate the Quality of life and extremity function post-combination treatment; To study the mechanism of radio-sensitizing effects of Anlotinib Hydrochloride for primary truncal or extremity soft tissue sarcoma; To assess the relationship between the MRI imaging, pathological findings and local control.
NCT07249333
Neoadjuvant radiotherapy plays an important role in the treatment of locally advanced colorectal cancer. Although radiation therapy is extremely important in reducing the tumor mass, downstaging, and therefore providing conditions for curative surgery, neoadjuvant therapy can increase the risk of perioperative complications, which can lead to slower patient recovery, greater perioperative morbidity, prolonged hospitalization, and increased treatment costs. The aim of the study is to determine whether there is a difference in the incidence of perioperative complications after radical colorectal cancer surgery between patients who received neoadjuvant radiotherapy and those patients who did not undergo neoadjuvant radiation. Data is collected from the medical documentation and information system of the Oncology Institute of Vojvodina. Demographic characteristics of patients, comorbidities, length of hospital stay, length of treatment in the intensive care unit, occurrence of complications in the perioperative period, as well as data on neoadjuvant therapy are analyzed. All included patients are of similar general condition, as determined by the CFS (Clinical Frailty Scale). Intraoperative complications are graded using the ClassIntra classification of intraoperative adverse events, and the presence of postoperative adverse events are assessed and classified using the Clavien-Dindo classification of postoperative complications and the HARM (HospitAl stay, Readmission, Mortality rate) score.
NCT07249957
This is a domestic single-center prospective clinical trial. The study selected patients with histologically confirmed cervical squamous cell carcinoma, diagnosed as stage IIb according to the FIGO 2018 staging principle (tumor size \< 4 cm). The patients first received 6 cycles of induction chemotherapy (carboplatin (AUC2) + paclitaxel (80 mg/m2), q1w), followed by concurrent chemoradiotherapy with a platinum-based regimen. The external beam radiation field only covered the entire uterus (including the primary lesion of the cervix), the bilateral parametrium, and the lesion of the cervix/vagina extending 3 cm downward. A total of 60 participants are planned to be included in the study.
NCT07133594
More than 50% of cancer patients have radiotherapy (RT) as part of their care pathway. Scientific and technological advances leads to an increase in demand. The development of hypofractionation is also increasing the capacity to treat more patients. These transformations raise questions from an organizational point of view, the quality of care and the response to patient needs. Several publications highlight that evaluating patient's experience, satisfaction, and collecting their ideas are excellent foundations for delivering patient-centered care (3,4). To assess the patient experience in RT, Olausson et al. developed and validated a questionnaire in English. To this day , this questionnaire has not been validated in French. The main objective is to validate the psychometric property of reliability of the Radiotherapy Experience Questionnaire (RTEQ) after its adaptation into French. This project also includes an assessment of patient satisfaction regarding their RT care pathway. This study is part of a broader initiative aimed at redesigning the patient journey in radiotherapy, and innovating in the tools and in the overall care approach.
NCT07080411
Based on preliminary findings on the motion error of the clinical target volume (CTV) in MR-guided adaptive radiotherapy (MRgART) for locally advanced rectal cancer (LARC), this study aims to reduce CTV-to-PTV margins and evaluate the complete response (CR) rate following MRgART in LARC patients. Additionally, it will investigate the safety and tolerability of MRgART, as well as its impact on: 3-year organ preservation rate Local recurrence rate in patients under a "watch-and-wait" approach 3-year overall survival (OS), disease-free survival (DFS), and local progression-free survival (LPFS). Furthermore, by analyzing ADC maps of the gross tumor volume (GTV), this study will characterize treatment responses and spatial deformation in metabolically active tumor subregions. These insights may inform future dose-escalation strategies for LARC radiotherapy, with the ultimate goal of improving prognosis and quality of life in this patient population.
NCT07035600
Earlier studies have shown that many patients (up to 30%) who have had a major surgery for rectal cancer, called a rectum amputation (where the entire rectum and anus are removed and the person gets a permanent stoma), still have trouble sitting and walking three years after the surgery. These problems are then seen as long-term or chronic. WASA is a randomized multicenter international study that will test a way to reduce these problems. It will start in fall 2025 and go on for 3.5 years. About 300 patients will take part. The patients will be randomly divided into two groups. One group will get guided online training twice a week, specially made for their needs. The other group will get information about the World Health Organization's (WHO) general advice on physical activity. The idea is that special training during the first year after surgery will reduce problems with walking and sitting. If the hypothesis can be confirmed, it could lead to an easy and low-cost way to help many rectal cancer patients feel and function better.
NCT06311955
To observe the efficacy and toxicities of heavy ion radiation therapy for locally advanced or advanced primary thymic epithelial malignant tumor received R2 resection. The primary endpoint was progression-free survival and toxicities, and the secondary endpoint was local relapse-free survival, overall survival and cause-specific survival.
NCT06851572
The study titled "Prevalence of Late Xerostomia and Hyposalivation with Associated Risk Factors in Survivors of Head and Neck Cancer After Radiotherapy" is a multi-centric cross-sectional study conducted in Egypt. It aims to assess the prevalence of late-onset xerostomia (dry mouth) and hyposalivation in survivors of head and neck cancer (HNC) who have undergone radiotherapy. Given the widespread use of radiotherapy as a treatment for HNC, its long-term side effects-especially on salivary gland function-are a major concern for patient quality of life. The study includes 260 participants who have completed curative radiotherapy at least one year prior, with or without chemotherapy. Patients were selected from multiple centers, and eligibility criteria required them to be at least 18 years old. Those with recurrent or secondary malignancies were excluded. The researchers hypothesized that high doses of radiation administered to the salivary glands would lead to a high prevalence of xerostomia, and that concomitant chemotherapy might further exacerbate this condition. To evaluate xerostomia, both subjective and objective assessments were conducted. The Summated Xerostomia Inventory (SXI), a five-item questionnaire, was used to measure self-reported symptoms of dry mouth. Objective assessments included salivary flow rate measurement, oral dryness indicators, and glandular response to stimulation. Additionally, the MD Anderson Symptom Inventory for Head and Neck Cancer (MDASI-HN) was used to assess the impact of xerostomia on daily functioning and quality of life. The study also examined various risk factors associated with xerostomia, including tumor site, treatment type (radiotherapy alone or with chemotherapy), demographic factors (age, gender, education level), and lifestyle habits (such as smoking status). Smoking history was classified into never smokers, former smokers (quit \>6 months before diagnosis), and current smokers (either quit post-diagnosis or continued smoking). This research is significant as it is one of the first large-scale studies in Egypt to evaluate long-term salivary dysfunction in head and neck cancer survivors. By identifying prevalence rates and contributing factors, the study provides valuable insights for improving patient care and developing better management strategies for individuals suffering from post-radiotherapy xerostomia.
NCT06730035
This is a study focused on analyses of peripheral blood (tissue study). The aim of the trial is to determine whether it is possible to predict early clinical and/or pathological responses after radiotherapy in the setting of neoadjuvant treatment for locally advanced rectal carcinomas, through qualitative and quantitative assessment of circulating extracellular vesicles in plasma and the microRNA (miRNA) contained within them. Extracellular vesicles are "clean-up" structures that collect various elements circulating in the blood, including fragments of DNA and RNA from tumor cells. Observing how these structures and their contents change with radiotherapy could provide early indications of the tumor's response to treatment. The trial seeks to answer the question: "Can the quantity of CD69+ vesicles in patients undergoing neoadjuvant radiotherapy predict their response early?" The trial is monocentric and plans to enroll approximately 30 patients. Participation in this trial does not offer direct benefits, as it involves only laboratory investigations without modifications to the usual diagnostic-therapeutic process for the condition considered. The collection of information is aimed at improving knowledge regarding extracellular vesicles. These vesicles could provide early insights into the response to neoadjuvant radiotherapy for locally advanced rectal tumors. In this way, subsequent therapeutic strategies can be personalized based on this response.
NCT06722885
Stereotactic Body Radiotherapy (SBRT) delivers an ablative dose of radiation to tumours, with high precision. This technique offers an alternative to surgery for lung lesions. The UZ Brussel of the VUB developed with the support of the Hercules foundation (grant for heavy research infrastructure) in collaboration with Brainlab AG a breathing-synchronized radiation technique on the VERO SBRT system, where the radiation beam follows the moving target (dynamic tumour tracking). The implantation of a marker in the tumour is thereby mandatory for its visualization but excluding patients with poor pulmonary function. Therefore Brainlab® recently released an update of the VERO SBRT system that allows "Markerless Tracking". This markerless technique is currently being implemented at the Radiotherapy Department of UZ Brussel for lung lesions. Hence we plan an observational study that will document the outcome of and feasibility for patients with lung lesions treated with markerless tracking on the VERO SBRT system at the Radiotherapy Department in UZ Brussel.
NCT06331585
The purpose of this phase Ⅱ trial was to investigate the effect of low-dose radiotherapy (LDRT) on the tumor immune microenvironment (TME) in oligometastasis, oligoprogression, and oligopersistence of non-small cell lung cancer (NSCLC) after immunotherapy. At least 20 participants will be enrolled in this study. All will take part at Hetian District People's Hospital.
NCT06313073
The goal of this clinical trial is to compare the effects of neoadjuvant radiotherapy and adjuvant radiotherapy in patients with breast cancer. The main questions it aims to answer are: * The clinical effect of neoadjuvant radiotherapy for breast cancer was determined according to the postoperative specimens. * Evaluate the acute and late toxicity of preoperative radiotherapy Participants will be randomly divided into two groups: the neoadjuvant radiotherapy group and the adjuvant radiotherapy group.
NCT04351204
Radiation therapy is predominantly based on a Computed Tomography (CT) scan obtained during the treatment planning phase. During the course of radiotherapy, however, both the tumor and organs at risk (OAR) are variable in position, shape and size between fractions, and during beam delivery within one treatment fraction. Around the clinical target volume (CTV) a safety margin (Planning Target Volume, PTV) is created to account for these geometric uncertainties to ensure that the tumor receives the prescribed dose. Direct integration of imaging at the linear accelerator enables daily monitoring of patient positioning, tumor position, and alterations in patient anatomy. Image guided radiotherapy (IGRT) enables the detection and immediate correction of such deviations and increases the precision of delivery. Adaptive radiotherapy has become an important strategy for serially modifying dose distributions in a manner that can substantially reduce OAR dose and subsequent toxicity, while maintaining adequate target coverage. Current adaptive protocols rely upon a standard CT-based workflow and (cone-beam) CT-based image guidance. Magnetic Resonance Imaging (MRI) has superior soft-tissue contrast over CT and seems a very promising modality to integrate in the radiation treatment process, facilitating better visualization of the tumor and OAR during treatment.
NCT06165900
This study was an open-label, multicenter, randomized study. It is planned to include 136 patients with stage II-III triple negative breast cancer. Eligible subjects will be randomized to receive either the experimental arm: adebrelimab plus stereotactic radiotherapy followed by adebrelimab plus chemotherapy (nab-paclitaxel + carboplatin) or the control arm: adebrelimab plus nab-paclitaxel + carboplatin.
NCT06070155
This study will be conducted on 28 participants who are survivors of breast cancer and underwent radiotherapy. The purpose of the current study is to investigate the effect of aerobic exercises on quality of life and serum levels of Zinc, Copper and iron in post-menopausal women who received radiotherapy after surviving breast cancer.