There are about 36818 clinical studies being (or have been) conducted in China. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The primary objective of this study is to evaluate the durability of protection and immuno-persistence of Recombinant Human Papillomavirus Bivalent (Types 16,18) Vaccine administered in females aged 18-45 years.
Current assessment of lower limb ischemia cannot reflect the location and degree of ischemia. Tissue perfusion assessment was used in the diagnosis and treatment of lower limb ischemia in this project, and the quantitative evaluation of ischemia degree was realized by using its advantages of quantitative analysis and perfusion imaging.
Hypofractionated radiotherapy could provide more convenient treatment and had similar toxicities.However,reports of hypofractionated radiotherapy with two-stage expander/implant reconstruction are rare,Some studies have shown that hypofractionated radiotherapy had similar toxicities to conventional fractionated radiotherapy in patients with breast reconstruction. So,investigators conducted a phase II study to observe the reconstruction failure in hypofractionated radiotherapy with two-stage expander/implant reconstruction.
This multi-center, open label phase II clinical study is performed in patients with recurrent metastatic squamous cell carcinoma of the head and neck progressed on prior anti-PD-1 mab ± platinum-based chemotherapy. This study is investigating the safety and efficacy of SI-B001 as a single agent in patients.
Acute myocardial infarction (AMI) is an event of myocardial necrosis caused by myocardial ischemia. Although the incidence and economic burden of AMI has declined in high-income countries, the incidence rate of AMI in China has increased dramatically over the past several decades. Initial medical therapy combined with primary percutaneous coronary intervention (PCI) is currently the most important advance in restoring coronary perfusion. Timely reperfusion therapy may halt the progress of necrosis and preserve viable tissue; however, it can also induce myocardial injury and cause cardiomyocyte death, a phenomenon called myocardial ischemia reperfusion injury (IRI), which can increase final myocardial infarct size by up to 50%. Unfortunately, there is no effective intervention for preventing IRI to date, though an improved understanding of the pathophysiology of IRI has led to the suggestion of several innovative therapeutic strategies with the potential for reducing unintended negative side effects of reperfusion therapy in AMI patients. Whether there is a therapeutic intervention that can effectively and safely reduce myocardial infarct size and cardiac mortality has been intensely explored over the years. Against this backdrop, a phenomenon called remote ischemic conditioning (RIC) has long been discussed as a potential approach to address the above issues. The purpose of present study is to investigate the efficacy of perioperative remote ischemic conditioning delivered at individual timepoints (e.g., pre-, per- and post-PCI) on myocardial injury in patients with AMI.
Chest malignant solid tumor (mainly lung and esophageal cancer) is a common malignant tumor that seriously threatens the health of residents in China. Its morbidity and mortality rank first, sixth, first, and fourth among all malignant tumors respectively. The treatment effect is not satisfactory, and the overall 5-year survival rate after surgery alone is about 20%-35%. Recent studies have shown that neoadjuvant therapy combined with surgery in the treatment of locally advanced esophageal cancer and lung cancer can significantly improve the efficacy compared with surgery alone. The results of multiple international and multi-center neoadjuvant immunotherapy showed that this new model of combined immunoadjuvant immunotherapy brought a breakthrough point for the treatment of malignant solid tumors of the chest. However, its safety and target benefit groups are still the biggest problems, and there is a large room for improvement. To develop the optimal treatment strategy, it is necessary to further clarify the immunomodulatory mechanisms of neoadjuvant CTIO, explore and develop new evaluation methods and prognostic biomarkers for the selection of targeted benefit patients, and the evaluation of efficacy. This is a key scientific issue in the current neoadjuvant CTIO treatment mode for thoracic malignant solid tumors, mainly lung and esophageal squamous cell carcinoma, which urgently needs to solve its safety and select the benefit population.
Aortic valve disease (AVD) is the most common and age-related mortality in elderly patients with valvular heart disease (VHD). Although transcatheter aortic valve replacement (TAVR) has been recommended at a higher level in foreign guidelines, there are still many high-risk and severe elderly patients with VHD who have not received effective treatment because of many complications and untimely medical treatment. Different from Europe and the United States, the majority of patients with bicuspid aortic valve are in China, and the calcification is more serious. The current clinical evaluation system and treatment guidelines can not be effectively applied to the high-risk and complex elderly patients. Therefore, the investigators should train and set up a valvular heart disease team, explore the technical difficulties of TAVR treatment in such patients, establish emergency TAVR operation mechanism, build a clinical evaluation system for high-risk and complex elderly patients with aortic valve disease in China, evaluate the curative effect periodically and further optimize the treatment strategy, so as to improve the quality of life and the meaning of life cycle of elderly patients with VHD in China Great significance.
The key technology research and standard evaluation system of elderly heart valve disease evaluation is to further establish a domestic multi center and large sample full information big data platform of elderly heart valve disease based on the previous Chinese elderly valve disease cohort and clinical research platform and the national valve disease surgery data platform.
Patients with high horseshoe anal fistula will be randomized to one of two equal group: treatment group will have decompression and drainage seton and control group will undergo cutting seton.
The purpose of this study is to investigate whether the addition of metronomic capecitabine to the standard treatment can improve prognosis in locoregionally advanced head and neck squamous cell carcinoma.