View clinical trials related to Radiotherapy.
Filter by:This prospective national multicenter observational and interventional study aims to assess the longitudinal disease trajectory of patients with oligometastatic disease (OMD) who receive local metastasis-directed therapy. Patients with any category of OMD from any non-hematological cancer are eligible for inclusion. Local ablative therapy (LAT) includes surgical metastasectomy, radiotherapy, thermal ablation, and electroporations. The primary objective is to assess the time to failure of LAT strategy in patients with OMD from any primary cancer treated with all LAT modalities.
Colorectal cancer (CRC) is a significant cause of morbidity and mortality worldwide. Its early clinical manifestations are often subtle, leading to late-stage diagnosis in about 30% of cases with distant metastases. Liver metastases are widespread and associated with poor prognosis, especially in terms of response to immunotherapy. Despite advancements in first- and second-line treatments, third-line therapies for advanced CRC remain limited, emphasizing the need for novel strategies. This prospective study evaluates the efficacy of combined therapy involving Sintilimab, Fruquintinib/Regorafenib, and radiotherapy in advanced CRC. The study cohort comprises patients with non-liver metastatic advanced CRC and those with liver metastases, each receiving tailored treatment protocols. The primary objectives are to assess progression-free survival (PFS), overall survival (OS), and treatment response rates. Subgroup analyses will focus on liver metastases to delineate their impact on treatment outcomes. The rationale for this study stems from the intricate interplay between immunotherapy, targeted therapy, and radiotherapy in CRC management. Previous data suggest a negative correlation between liver metastases and immunotherapy efficacy, necessitating a comprehensive approach integrating multiple treatment modalities. Radiotherapy, particularly stereotactic body radiation therapy (SBRT), has shown promise in controlling liver tumors and modulating the tumor microenvironment, potentially enhancing immunotherapy responses. This study aims to provide valuable insights into optimizing third-line and subsequent therapies for advanced CRC by elucidating the efficacy and safety of this combined treatment approach. The findings may pave the way for personalized treatment strategies tailored to individual patient characteristics, ultimately improving clinical outcomes in this challenging disease setting.
The goal of this observational study is to compare the prognostic differences between SBRT and Surgery for NSCLC patients with interlobular fissure invasion. The main questions it aims to answer are: 1. Explore the survival differences. 2. Explore of the lung function changes before and after different treatments.
Recent years have seen significant advancements in the treatment landscape of advanced hepatocellular carcinoma (HCC), with the emergence of targeted and immunotherapy strategies reshaping first-line therapy. Sorafenib, a multi-targeted tyrosine kinase inhibitor, initially set the standard, followed by approvals for lenvatinib, regorafenib, cabozantinib, and ramucirumab. Immunotherapy, particularly combinations like atezolizumab with bevacizumab, has shown superior efficacy over sorafenib. Despite these advances, second-line therapies offer limited progression-free survival (mPFS: 2-3 months), necessitating new approaches. Radiotherapy, bolstered by technological advancements, has shown promise. Techniques like stereotactic body radiotherapy (SBRT) combined with PD-1 inhibitors achieve significant response rates and survival benefits. Combining radiotherapy with targeted immunotherapy has also demonstrated improved outcomes. Radiotherapy, especially in oligometastatic HCC, is increasingly favored due to its ability to enhance local control without increasing toxicity. These developments underscore the evolving landscape of HCC treatment towards personalized and multimodal approaches.
Operandi project aims to address unmet clinical needs in the current management of GEP-NETs treated with PRRT by exploring new opportunities provided by imaging-based artificial intelligence (AI) and data augmentation, simultaneous PET-MRI imaging, and novel approaches to increase patient selection and PRRT efficacy (genomic profiling, radiopotentiators, and new radionuclides). The study aim to identify predictive and early markers indicative of PRRT effectiveness based on a large prospective cohort of GEP-NET patients. This cohort will be used to uncover relevant predictive signatures within the morphological, functional, and molecular imaging data using novel imaging-based AI approaches with a new patient imaging pathway including simultaneous PET-MRI. Considering this global objective, the objective of this clinical research protocol is to provide clinical, molecular and imaging data in a prospective standardized study, notably by performing systematic PET-MRI at baseline, at middle course of PRRT and at 1 year of the beginning of PRRT, in patients with advanced GEP-NETs treated with PRRT.
The objective of this single-center clinical study was to evaluate the disease control rate(DCR) and safety of multimodal radiotherapy in the treatment of patients with renal cell carcinoma (RCC) progressed after prior immunotherapy.
This is a single-center, single-arm, open-label study that includes patients meeting the inclusion criteria (liver-GTV volume < 700ml or estimated liver-GTV V5 < 300ml) with hepatocellular carcinoma with diffuse tumor thrombosis involving both left and right lobes. All lesions receive moderate-dose hypofractionated intensity-modulated radiotherapy, with a gross tumor dose of 25Gy/5f, and a maximum dose of 35Gy/5f at the tumor center. One week before or during the radiotherapy, patients receive concurrent Tislelizumab at a dose of 200mg. Subsequently, Tislelizumab is administered intravenously every 3 weeks. Follow-up examinations are conducted 1-3 months post-radiotherapy. Lenvatinib 4mg may be used for maintenance therapy with Tislelizumab if there are no contraindications. Maintenance therapy is continued until disease progression or intolerance. The primary endpoint is median overall survival (mOS), and secondary endpoints include objective response rate (ORR), progression-free survival (PFS), and toxicity.
At present, the treatment methods for recurrent cervical cancer are very limited. The immune checkpoint inhibitors (ICBs) is a promising new directions for recurrent cervical cancer, but the clinical response rate is insufficient. Pulse low-dose rate radiotherapy (PLDR) is a new technology in recent years, which uses continuous pulse low-dose rate irradiation to induce hypersensitivity in tumors, and its clinical safety has been verified. Compared to conventional radiotherapy, PLDR has advantages in protecting the lymphatic system and relieving the immune barrier, but it is still unclear whether it can improve the efficacy of ICB. This project aims to combine PLDR with ICB to explore new strategies for recurrent cervical cancer.
This is a single-arm prospective phase II clinical trial to investigate the efficacy and safety of adjuvant simultaneouslyintegrated boost radiotherapy following narrow-margin(<1cm) hepatectomy in patients with HCC. Eligibility patients will receive IMRT or VMAT to high risk area of tumor bed and tumor bed. The prescription dose to 95% GTVtb boost was planned at 55-60Gy, with PTV 45-50Gy, in 23-25 fractions, mainly depending on the dose constraints of OARs. The primary endpoint is the 3-year OS, the secondary endpoints are disease-free survival, patterns of failure, toxic events and local control rate.
This is a single-arm prospective phase II clinical trial to investigate the efficacy and safety of concurrent radiotherapy with envafolimab and capecitabine in locally advanced pancreatic cancer.Eligibility patients will receive intensity-modulated radiotherapy(IMRT)or volumetric modulated arc therapy(VMAT) to pancreatic lesions,metastatic lymph nodes and high-risk lymphatic drainage areas,concurrent with and followed by envafolimab and capecitabine.