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.
Stroke is the second largest cause of death globally after ischemic heart disease.Of the total number of prevalent strokes, 84.4% are ischemic. Reperfusion therapy is the most important treatment for acute ischemic stroke (AIS) ,including intravenous thrombolysis and/or endovascular treatment.However,the most serious and common complication with reperfusion therapy is hemorrhage transformation(HT),which significantly increases disability and mortality. The fundamental mechanism leading to post-stroke HT is the disruption of the blood brain barrier(BBB) and increase of permeability.Endocan plays a critical role in vascular inflammatory responses by enhances the production of pro-inflammatory cytokines by endothelial cells,the expression of adhesion molecules such as inter-cellular adhesion molecule-1(ICAM-1) and vascular cell adhesion molecule-1(VCAM-1),and the adhesion of leukocytes to endothelial cells. Endocan significantly decreases levels of zonula occludens（ZO-1) and occludin which are tight junction proteins that play major roles in the maintenance of vascular barriers. Endocan could induce vascular endothelial growth factor-A(VEGF-A) and facilitate the binding of VEGF-A to its receptor(VEGFR-2) to enhanced endothelial permeability.Therefore,endocan is a reliable biomarker of endothelial dysfunction, which may be associated with disruption of the BBB. In this context, the investigators hypothesized that elevated pretreatment serum endocan levels might be independently associated with HT after reperfusion therapy in the acute phase of ischemic stroke. Serum endocan,ICAM-1,VCAM-1 and matrix metalloproteinase-9(MMP-9) levels will be determined by enzyme-linked immunosorbent assay(ELISA) in blood samples obtained at baseline (pretreatment) and at 12,24 hours after reperfusion therapy in patients with acute stroke and in healthy subjects.In the present study,the investigators attempt to investigate whether high levels of endocan are associated with HT in patients who received reperfusion therapy.In addition,the investigators explore the association between serum endocan and early neurological deterioration and unfavourable short-term prognosis.
This is a Phase 1, open label, dose escalation clinical trial of human umbilical cord-derived mesenchymal stem cells for the treatment of decompensated cirrhosis. The purpose of this study is to assess the safety of human umbilical cord-derived mesenchymal stem cells in patients with decompensated cirrhosis.
HbA1c is widely used as the gold standard for evaluating glycemic control. However, in patients who need adjusting hypoglycemic regimen, A1c was not a sensitive marker. In comparison, serum GA level can reflect the average blood glucose level in the last 2~3 weeks of diabetes. Therefore, investigators undertake this study to determine whether knowledge of GA values and adjusting anti-diabetic regimens according to GA values will result in improved glycemic control in newly diagnosed type 2 diabetes mellitus (T2DM). This multicenter randomized controlled clinical study will be conducted in 10 hospitals in China. A total of 200 patients with newly diagnosed T2DM will be 1:1 randomly assigned to two groups: intervention group (GA) and control group (NC). In GA group, the anti-diabetic treatment regimen will be strengthened when GA value is higher than 16% at 4 weeks. In NC group, investigators will be not aware of the GA value and rely on the current guidelines to adjust treatment. At 12-week of follow-up，investigators compare the achievement rate of HbA1c(≤7%) between the two groups.
This trial is a Phase II study. The purpose of this study is to evaluate the efficacy, safety, and pharmacokinetics of AK117/AK112 administered with chemotherapy in participants with locally advanced or metastatic triple-negative breast cancer (TNBC) who have not received prior systemic therapy for metastatic breast cancer (mBC).
PREVENT is a prospective, multicenter, interventional study evaluating the performance of the OverC multi-cancer detection blood test in asymptomatic individuals with cancer risk.
This is a multicenter randomized controlled trial comparing the efficacy and safety of two endometrial preparation protocols for the first frozen embryo transfer cycle in PCOS with whole embryo freezing. Subjects will be randomized to letrozole-stimulated group or hormone replacement treatment group in their first frozen embryo transfer cycle, and their pregnancy and perinatal outcomes during this cycle will be followed up and analysis.
Helicobacter pylori (H. pylori) is closely related to the occurrence of gastric cancer and other diseases, the discovery and eradication of H. pylori infection has great significance to the prevention and treatment of related diseases. At the same time,understanding the influencing factors of H. pylori infection and eradication failure in the population can provide a scientific basis for the formulation of local H. pylori prevention and control strategies. So, the investigators intend to analyze the factors related to H. pylori infection and eradication failure in the outpatients of gastroenterology clinics in Xi'an, China.
A randomized, double-blind, placebo-controlled study of tolerance, pharmacokinetic / pharmacodynamics (PK / PD) and immunogenicity of single administration of PEG uric oxidase for injection in healthy adults and hyperuricemia volunteers.
The purpose of this study is to determine effects of remote ischemic conditioning on dynamic cerebral autoregulation, blood pressure and heart rate variability in patients with cerebral small vessel disease.
At present, surgery, radiotherapy and chemotherapy are the main treatment methods for patients with advanced gastrointestinal cancer. Although targeted therapy has significantly improved the prognosis of patients, the mortality of patients has not been significantly reduced, so new treatment methods are urgently needed. In recent years, immunotherapy has become a new hotspot in tumor therapy. Compared with traditional treatment, immune checkpoint inhibitors (ICIS) have shown long-term good efficacy and tolerance in clinical trials. However, single drug ICIS has reached a bottleneck for advanced gastrointestinal cancer, with low response rate and poor PFS and OS. With the results of REGONIVO showing good efficacy, the treatment mode of immune combined with small molecule anti angiogenesis drugs has sprung up. The purpose of this study was to analyze the efficacy and safety of in Camrelizumab combination with Apatinib mesylate in advanced gastrointestinal cancer.