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 study was designed as a prospective, multicenter, randomized, open-label, parallel-controlled clinical trial. The study population was patients with vulvar leukoplakia, and compared the efficacy and safety of AI temperature-controlled radio frequency technology and electrical stimulation in the treatment of vulvar leukoplakia. According to the research purpose, the sample size was calculated and determined to be 120 cases, and they were randomly assigned to the observation group and the control group according to the ratio of 1:1, namely 60 cases in the radio frequency observation group and 60 cases in the electric stimulation control group.
Myopia is the most common refractive eye disease worldwide. The number of cases is up to 2 billion. In recent years, the incidence of myopia in China is obviously rising trend. As early as the 2018 national health committee epidemiological data show that teenage myopia rate in China has been the first in the world, and has become the influence in China, especially the youth eye health major public health problem. In recent years, prevention and control measures for myopia have emerged in endlessly, such as increasing outdoor activity time, sufficient sunlight exposure, orthokeratology and local use of low-concentration atropine can partially prevent the occurrence or slow down the progression of myopia. But the effects are limited and cannot completely inhibit the development of myopia. In recent years, with the in-depth study of myopia, it is found that myopia is not only the change of diopter, but also the pathological changes of the whole eyeball shape and corresponding tissues. The incidence of myopia is closely related to the biological parameters of the eyeball, which has become a hotspot of clinical research in recent years. Current studies believe that eyeball biological parameters such as axial length, scleral thickness, choroid thickness are related to the occurrence of myopia, among which the change of scleral structure and shape, namely scleral remodeling, is considered to be an important factor in all visual stimuli leading to myopia. A large number of studies have also shown that scleral remodeling can lead to changes in the scleral biomechanics, thereby promoting the development of myopia. Multiple studies have shown a negative correlation between myopia and scleral thickness, with the thinning of the lower anterior sclera being the most significant. The lower anterior sclera is considered to be a marker for predicting the development of myopia, but some studies have found no correlation between the two. Such differences in the results may be related to the precision of the measurement instrument, the sample size of the included cases, age, and the grouping of different refractive states. The correlation between various biological parameters of the eyeball, especially the sclera, and myopia is not clear at present. Therefore, more penetrating and clearer instruments, more sample sizes, and more scientific grouping are needed for further research and confirmation.
This phase I/II study the side effects and efficacy of natural killer cells after donor stem cell transplant and how they treat patients with myeloid malignancies or lymphoproliferative disorders. Investigators expanded NK cells ex vivo with a non-feeder cell regimen to avoid the risk of infusion of feeder cells with expanded NK cells. Investigators infuse NK cells after myeloablative conditioning therapy. These cells may help decrease relapse of malignant disease, severe graft versus host disease, reactivation of certain viruses, and, therefore, prolong the survival of participants.
This multicenter randomized controlled clinical trial was conducted to compare the eradication efficacy and health economic benefits of individualized regimens based on HP drug resistance mutation gene detection (multiple PCR method), individualized regimens based on HP traditional drug sensitivity testing (E-test method) and empirical regimens in the Helicobacter pylori treatment.
Magnetically controlled capsule endoscopy (MCE) is now widely used all over the world. However, the standard gastric preparation method by dimethicone we used clinically still has mucus at the bottom of the stomach. In this study, we aimed to determine whether pronase granules is helpful to improve the cleanliness of gastric mucosa in MCE.
This trial aims to evaluate the efficacy and safety of neoadjuvant therapy with Darolutamide combined with Androgen-Deprivation Therapy in High-risk/Very high-risk localized prostate cancer. This trial is A prospective, single-arm, multicenter clinical trial. Treatment cycle is 24 weeks,
Endoscopic retrograde cholangiopancreatography (ERCP) is a technically challenging procedure. It takes time to learn the basic skills and need at least 180 - 200 cases for trainees to achieve competency in ERCP. Hands-on practice in patients remains the gold standard for ERCP training. Traditional hands-on ERCP training requires the trainer to be on-site to assist the trainee with ERCP operations. We hypothesized that the trainee can be safely guided by trainer off-site with interactive audio and endoscopic and fluoroscopic view. Technology-enabled health care at a distance has profound scientific potential and accordingly has been met with growing interest. Teleguidance facilitated ERCP cannulation is a strategy to provide expert cannulation guidance to trainee in settings where such expertise is not on-site. Teleguidance not only reduces unnecessary radiation exposure of endoscopist, but also provides remote assistance for trainees to complete training or further improve skills. Given the advantages of the off-site teleguidance, it could be an attractive substitute for on-site hands-on ERCP training. The primary aim of this study was to evaluate whether off-site assistance (Off group) could achieve a comparable success rate to on-site assistance (On group) regarding the rates of successful selective biliary cannulation during ERCP training.
The primary purpose of this three-arm single center, randomized, subject and assessor blind, controlled clinical study is to evaluate the effect of dexmedetomidine on patient-controlled intravenous analgesia after pediatric scoliosis orthopedics.
This Ⅱ study evaluates the safety and efficacy of intratumoral injection of OH2 in locally advanced or metastatic bladder cancer. OH2 is an oncolytic virus developed upon genetic modifications of the herpes simplex virus type 2 strain HG52, allowing the virus to selectively replicate in tumors. Meanwhile, the delivery of the gene encoding human granulocyte macrophage colony-stimulating factor (GM-CSF) may induce a more potent antitumor immune response.
This is a single-center, open-label, non-randomized, single-arm Phase 1 Study to evaluate safety and tolerability of optimized Dual CD33/CLL1 CAR T Cells in subjects with refractory or relapsed acute myeloid leukemia. Maximum of twenty subjects will be enrolled. After the collection of PBMC and about 5 days before infusion, lymphodepletion chemotherapy (fludarabine at 30 mg/m^2/day and cyclophosphamide at 250 mg/m^2/day) will be administrated for 3 days. Then this study will be using BOIN1/2 approach from starting dose 1: 1×10^6 (±20%) to dose 2: 5×10^6 (±20%). If the manufactured cells were not sufficient to meet the preassigned standard dose criteria, patients are given infusion at a low dose of 5×10^5 (±20%) /kg.