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.
Total tubeless Percutaneous nephrolithotomy (PCNL) is a modified surgical method of PCNL surgery, that is, there is no indwelling nephrostomy tube and double-J tube during PCNL surgery. Compared with traditional PCNL surgery, it has the advantages of reducing pain, shortening operation time and reducing operation cost. Since this procedure was first performed in 2004, several randomized clinical studies have verified the safety and efficacy of total tubeless PCNL. Conventional total tubeless PCNL surgery requires the patient to first undergo retrograde transurethral ureteroscopic insertion of the ureteral catheter in the lithotomy position, and then change the patient to the prone position. However, a large number of literature reports and the surgical experience of PCNL in the past 20 years tell the investigators that the reverse insertion of ureteral catheter can cause many recent surgical complications.The study planned to perform the operation in the prone position without reverse insertion of a ureteral catheter in the total tubular PCNL surgery.
1. To carry out research on minimal residual disease (MRD) monitoring in patients with multiple myeloma (MM) based on plasma circulating tumor DNA (ctDNA) methylation sequencing, which aims to explore new MRD detection methods for MM; 2. Carry out ctDNA-based methylation sequencing in newly diagnosed, remission, and, relapsed MM patients, to track the clonal evolution patterns; and explore the in the initial diagnosis-remission-relapse stage of MM, track the clonal evolution characteristics of methylation profiles in MM patients during the disease progression.
This is a randomized, double-blinded, placebo-controlled, multicenter trial. Cerebral small vessel disease (CSVD) patients will be diagnosed by Magnetic Resonance Imaging (MRI) and randomized into treatment or control groups. The purpose of this trial is to assess the efficacy of cerebralcare pills on cerebral small vessel disease.
To analyze the postoperative visual effects, and to compare the safety and efficacy of different surgical treatment with of Marfan Syndrome with subluxation lens.
Alzheimer's disease (AD), the most common cause of dementia, is characterized by cognitive impairment, mental and behavioural abnormalities, and social dysfunction. Current treatments can only delay the progression of AD, not cure it completely. In vitro studies have shown that Astragalus has toxic effects such as anti-hypoxia injury of nerve cells, anti-free radical damage, anti-excitatory amino acids, etc. It can be used to expand cerebral vessels, increase cerebral blood flow, improve cerebral microcirculation, protect brain cells, and repair damaged brain cells. However, the clinical effects of add-on Astragalus in improving cognition in these patients remain unclear. Therefore, this pragmatic clinical trial aims to determine the efficacy and safety of add-on Astragalus in improving cognition in patients with AD
To explore the efficiency and safety of CLAG regimen in R/R ALL
Premix insulin is widely used, with high proportion of positive insulin autoimmune antibody in patients with type 2 diabetes. The positive insulin autoimmune antibody may affect blood glucose control. We aim to explore the management for the positive insulin autoimmune antibody and blood glucose control in these patients, and investigate the immune cells changes with the change of different glucose lowering drugs.
As a major breakthrough of acute stroke treatment over the past decade, endovascular thrombectomy (EVT) drastically improved neurological recovery and survival in patients with large vessel occlusion (LVO) ischemic strokes in major clinical trials. Nevertheless, much remained uncertain about the implementation of scientific evidence of EVT into real-world benefits. For instance, healthcare policies that influence critical time-matrices, endovascular thrombectomy techniques that may enhance success rate or prevent complications, or advanced imaging techniques that allow precise prognosis or expansion of treatment populations, should be evaluated. On the other hand, capturing LVO patients who were not able to undergo EVT may reveal the gap between clinical trials and real-world practice in the Asia-Pacific. In this multicenter prospective collaboration across the Asian-Pacific, the investigators aim to evaluate the determinants of effective EVT in the real-world setting.
As an established therapeutic target, HER2 is widely used in a variety of tumors, including breast cancer and gastric cancer, among which a variety of drugs, including trastuzumab, lapatinib and T-DM1, have been approved for the treatment of breast cancer and gastric cancer with HER2 amplification or overexpression. In colorectal cancer, HER2 as a target has also been focused in recent years.
This clinical trial aims to evaluate the efficacy and safety of pembrolizumab in the first-line treatment of advanced NSCLC complicated with COPD and its influence on the course of COPD, so as to provide prospective clinical evidence for immunotherapy of NSCLC complicated with COPD in China and to guide clinical application.