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.
With the development of society and the enhancement of people's awareness of law and self-protection, it is necessary to use simulation technology to create a simulated human and clinical environment to replace the traditional teaching of clinical operation on real patients. So simulation teaching is more and more important in medical education. However, simulation teaching is in the ascendant in China, especially in the ultrasound-guided nerve block, limited by the lack of full simulation of puncture model, the simulation training of ultrasound-guided nerve block is not carried out much. Therefore, this study uses simulation training to carry out ultrasound-guided horizontal abdominal muscle block teaching, in order to explore an effective way of ultrasound-guided nerve block teaching.
Diffuse large B-cell lymphoma (DLBCL) is the most common non-Hodgkin's lymphoma, accounting for 35% of lymphoma. Chimeric antigen receptor T cell (CAR-T) therapy is a new method to treat DLBCL. KTE-C19, published in the New England Medical Journal in December 2017, was used to treat relapsed and refractory B-cell lymphoma. One year of treatment for 111 patients, the total response rate was 82%, and the complete remission rate was 54%. However, a large number of clinical studies have shown that about 20% of patients with B-ALL and 50% of patients with B-NHL cannot achieve complete remission (CR) after CD19-CAR-T treatment. Targeting tumor microenvironment is an important new method to overcome the drug resistance of CAR-T cells. In this study, IL-7 and CCL19 were connected on the basis of traditional second generation CD19 CAR-T cells to construct novel fourth generation CAR-T cells, which can promote the infiltration, accumulation and survival of CAR-T cells in lymphoma tissue, and further enhance the anti-tumor effect of traditional CAR-T cells. At the same time, combined with four generations of CAR-T cells and PD1 monoclonal antibody, PD1 / PDL1 signal pathway was blocked, anti-tumor effect of CAR-T was improved, and immune response and long-term remission rate of DLBCL were improved.
Humeral intercondylar fractures are very challenging in clinical treatment. There are many problems not clear. One of the important problems remained to be solved is which fixation method can achieve the best effects after olecranon osteotomy. Therefore, the investigators are going to perform a retrospective analysis of patients with distal humerus fractures admitted to their hospital in 2012-2017 to compare the functional outcomes of elbow joints with tension-band fixation and plate fixation after olecranon osteotomy.
Peritoneal dialysis-related peritonitis is a common complication of peritoneal dialysis, which is the main cause of transfer from peritoneal dialysis to hemodialysis. Guidelines for International Society for peritoneal dialysis（ISPD）published in 2016 recommend that timely and adequate use of antibiotics is the most important part of treatment. Empiric treatment should be initiated as soon as possible after obtaining microbiological specimens，then adjust the antibiotics according to culture results and drug sensitivity of bacteria. Intraperitoneal antibiotic can ensure antibiotic concentrations at the local sites of the infection are maximized，however, in patients with renal failure, the investigators should pay attention to the nephrotoxicity caused by the reduction of renal excretion，being guided by Pharmacokinetic/ Pharmacodynamic Principle on antibiotic can develop dosing recommendations to optimize antibiotic efficacy and minimize toxicity. In this study, the investigators aim to detect the concentration of ceftazidime and cefazolin in CAPD patients，so as to analyze the pharmacokinetics parameters and evaluate the rationality of the treatment.
COVID-19 has a high infection rate and mortality, and serious complications such as heart injury cannot be ignored. Cardiac dysfunction occurred in COVID-19 patients, but the law and mechanism of cardiac dysfunction remains unclear. The occurrence of progressive inflammatory factor storm and coagulation dysfunction in severe and fatal cases of NCP points out a new direction for reducing the incidence of severe and critically ill patients, shortening the length of duration in severe and critically ill patients and reducing the incidence of complications of cardiovascular diseases. Aspirin has the triple effects of inhibiting virus replication, anticoagulant and anti-inflammatory, but it has not received attention in the treatment and prevention of NCP. Although Aspirin is not commonly used in the guidelines for the treatment of NCP, it was widely used in the treatment and prevention of a variety of human diseases after its first synthesis in 1898. Subsequently, aspirin has been confirmed to have antiviral effect on multiple levels. Moreover, one study has confirmed that aspirin can inhibit virus replication by inhibiting prostaglandin E2 (PGE2) in macrophages and upregulation of type I interferon production. Subsequently, pharmacological studies have found that aspirin as an anti-inflammatory and analgesic drug by inhibiting cox-oxidase (COX). Under certain conditions, the platelet is the main contributor of innate immune response, studies have found that in the lung injury model in dynamic neutrophil and platelet aggregation. In summary, the early use of aspirin in covid-19 patients, which has the effects of inhibiting virus replication, anti-platelet aggregation, anti-inflammatory and anti-lung injury, is expected to reduce the incidence of severe and critical patients, shorten the length of hospital duration and reduce the incidence of cardiovascular complications.
Phase I study of IMMH-010 in patients with advanced malignant solid tumors
To determine the incidence of glaucoma following bilateral congenital cataract removal and estimate the associated risk factors in a large cohort to provide guidance for clinical practice.
This study evaluates the effect of squatting on the toilet on gastric transit time and complete examination rate of capsule endoscopy.In the observation group, the patients could go to squatting on the toilet at any time as they want to after taking the capsule.
Luminal type A breast cancer is a type with good clinical prognosis, and the proportion of lymph node metastasis is low, but a small number of patients have more lymph node metastasis when the primary tumor is very small, and the survival is poor, suggesting that this part of Luminal A breast cancer has the different expression of some genes from that of general Luminal A breast cancer, which affects tumor invasion and participates in the occurrence of tumor metastasis. But the mechanism is not clear, especially in the current tumor microenvironment and immune related mechanisms.We want to investigated the relationship of the transcriptional tumor immune microenvironment with early lymph node metastasis among Luminal A type breast cancer.
Transcranial magnetic stimulation (TMS) is a procedure that has been shown to improve fatigue in chronic sufferers. It uses a plastic covered coil that sends a magnetic pulse through the skull into the brain and by targeting particular areas in the brain it can be used to help modulate the perception of fatigue. The study intends to use this technique to treat such a disabling symptom in patients who suffer from Multiple System Atrophy (MSA). Initially the aim is to study this technique in 22 MSA patients who are suffering from fatigue . These patients would require an resting-state funtional MRI before and after the stimulation. The stimulation would be performed ten sessions and the patients would be assessed by a clinician using well recognized clinical tools. It is anticipated that there will be a meaningful improvement in fatigue. It is also anticipated that TMS is a safety technique to use in MSA patients . Our findings will revealed that fatigue may be associated with an altered default mode network and sensorimotor network connectivity in MSA patients. We hypothesize that these divergent motor and cognitive networks connectivity changes and their adaptive or maladaptive functional outcome may play a prominent role in the pathophysiology of fatigue in MSA.