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.
To evaluate the safety and effectiveness of electronic Vision-aid Device in walking and obstacle recognition for visually blind people
Nonsuicidal self-injury (NSSI) is defined as direct, deliberate bodily harm without suicidal intention. In recent years, growing evidence suggests that NSSI has become a worldwide public health issue. People with NSSI behaviors, especially adolescents, commonly exhibit emotion-related and interpersonal problems. Pain empathy represents an essential basal domain of socio-emotional processing and refers to the ability to empathize, connect and share with others' pain. However, altered empathic processing has not been systematically examined in adolescents with NSSI. To this end, the current functional magnetic resonance imaging (fMRI) study will recruit one group of NSSI adolescents (n=40) and one healthy control (HC) group (n=40), to compare their neural activity regarding pain empathy processing, which is measured by blood oxygenation level-dependent (BOLD) fMRI. The investigators included conditions of physical pain empathy (stimuli depicting noxious stimulation to the limbs) and affective pain empathy (stimuli depicting faces expressing pain) as well as corresponding control stimuli. The investigators hypothesize that compared to HC, NSSI adolescents show increased empathic reactivity to physical pain stimuli in salience and arousal related brain regions but decreased empathic reactivity to affective pain empathic stimuli.
The goal of this observational study is to compare serum glucose and lipid metabolism levels between health volunteers and vitiligo patients. The main question it aims to answer is whether vitiligo is related to glucose and lipid metabolism disorders. Participants will complete a vitiligo questionnaire and test serum levels of indicators related to glucose and lipid metabolism. Researchers will compare vitiligo patients with healthy volunteers to see if there is a correlation between vitiligo and disorders of glucose and lipid metabolism.
The purpose of this study is to evaluate whether PET/CT-RGD or MIBI can be used for the angiogenesis assessment of NL003 in PAD patients.
Plastic particles are a ubiquitous pollutant in the living environment and food chain, so far, plenty of studies have reported the internal exposure of microplastics and nanoplastics in human tissues and enclosed body fluids. Neurosurgery is the only department that can open the skull. In addition to blood and cerebrospinal fluid, there are brain tissue and tumors in the presence of lesions. Whether any of these microplastics and nanoplastics are present remains a mystery. This prospective observational study will harvest biological samples of neurosurgery patients. The objective of this research is to be able to detect microplastics and nanoplastics on blood and operation samples of neurosurgery patients.
This study aims to assess the clinical efficacy and safety of obinutuzumab in Chinese patients with indolent non-Hodgkin B-cell Lymphoma (predominantly Follicular lymphoma and Marginal zone lymphoma) in a real-world setting.
The efficacy and safety of chidamide in first-line maintenance therapy for PTCL will be assessed through a retrospective case analysis.
Chronic stress refers to a special emotional state caused by unexpected stress for a long time, with an increasing incidence in the population. It can cause the body to release hormones such as cortisol and adrenaline. Tumor patients often experience changes such as psychological and emotional abnormalities, decreased quality of life, and impaired social relationships. Under stimulation, patients often experience negative reactions such as anxiety or depression. Epidemiological studies have shown that stress can affect the prognosis of malignant tumors, but the effect of stress on the efficacy and prognosis of esophageal cancer is still unclear. In animal models, chronic stress leads to an increase in tissue catecholamine levels, increased tumor burden, and increased invasiveness of ovarian cancer cells in mouse models. At the same time, stress can promote tumor neovascularization in mice. However, the mechanism by which chronic stress affects the occurrence and development of esophageal cancer is currently unclear. In addition to neurohumoral factors, chronic stress can cause changes in the gut microbiota, which in turn affects the body's digestion, metabolism, and immune function. It is a key gatekeeper of the immune response to tumors. Therefore, gut microbiota as an intermediate factor may also affect the occurrence and prognosis of various types of esophageal cancer.
The purpose of the D4325C00007 study is to identify and characterise patients with known or newly diagnosed CKD for possible participation in future renal clinical studies and to obtain an overview on current treatment choices for this patient group in different regions.
This is a school-based, cross-sectional study to assess the incidence and prevalence, risk factors of myopia among schoolchildren in both eye-use environment, eye-use habits, lifestyle, and family and subjective factors before and during COVID-19. Large population and representative study subjects. Environmental exposure and daily within and out-of-school activities will be evaluated in a random subgroup.