Clinical trials

This prospective randomized controlled clinical study aims to evaluate the safety and efficacy of a novel Vortex Intelligence Stone Optimized Removal (VISOR,The experimental group) system compared to a single-use ureterorenoscope (the control) for treating upper urinary tract stones. A total of 100 patients with upper urinary tract stones (cumulative stone diameter ≤3 cm) will be enrolled and randomly assigned in a 1:1 ratio to either the experimental group (n=50) or the control group (n=50). The experimental group will undergo surgery using the innovative system, which integrates irrigation-suction, pressure monitoring-regulation, and lithotripsy-evacuation functions. The control group will be treated with a conventional single-use ureterorenoscope. The primary outcome measure is the immediate stone-free rate (SFR), defined as the proportion of patients with residual fragments \<4 mm on renal non-contrast computed tomography (NCCT) performed within 24 hours postoperatively. Key secondary endpoints include the SFR at 3 months, operative and lithotripsy times, total laser energy used, intraoperative ureteral injury (Traxer grading), postoperative pain scores, incidence of fever (\>38.0°C), and overall complication rates (Clavien-Dindo classification). Patient follow-up assessments will be conducted at 24 hours, 21±7 days, and 90±14 days post-surgery to monitor stone clearance, complications, and recovery. This study seeks to determine if the novel system offers superior stone clearance while maintaining a safe renal pelvic pressure profile, potentially improving outcomes for patients with larger renal stones treated ureteroscopically.

The association between biological aging and type 2 diabetes mellitus (T2DM) incidence in individuals with and without metabolic dysfunction-associated steatotic liver disease (MASLD) remains unclear.We assessed biological age by calculating phenotypic age (PhenoAge), Klemera-Doubal method (KDMAge), and homeostatic dysregulation (HDAge). To examine the association of biological ageing with the risk of T2DM, cox regression models were conducted. Furthermore, we applied survival analysis, restricted cubic spline models and population attributable fraction (PAF) to further evaluate the association between biological ageing and T2DM incidence.

Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.

Endoscopic resection of pedunculated polyps mainly focuses on how to prevent bleeding, and also needs to pay attention to the convenience of resection and the integrity of resection, which means that different endoscopic resection strategies should be adopted for pedunculated polyps with different pedicle sizes. The head larger than 20mm or pedicle larger than 5mm are defined as large pedunculated polyps, which are at greater risk of bleeding. Current guidelines recommend hot removal by snare following preoperative saline injection, ligation of the pedicle with a nylon ring or metal clip, depending on the size of the polyp head and pedicle. However, the use of snares and metal clamps does not appear to reduce delayed postoperative bleeding, and the technical requirements of nylon ligation are relatively high. Recent studies have found that Underwater endoscopic mucosal resection (UEMR) is also safe and effective for the treatment of large and medium colorectal sessile polyps. Therefore, it is still necessary to further explore new safe and effective endoscopic resection strategies and techniques.

This multicenter, randomized, double-blind, placebo-controlled clinical trial aims to evaluate the efficacy of Vitamin C supplementation in improving the prognosis of patients with Chronic Obstructive Pulmonary Disease (COPD) through its antioxidant effects. The primary objectives of the study are to determine: 1. Whether Vitamin C reduces the frequency of acute COPD exacerbations. 2. Whether Vitamin C improves pulmonary function and health-related quality of life in patients with COPD. The study will compare Vitamin C to a placebo to assess its impact on oxidative stress and its potential to enhance clinical outcomes in COPD management. Participants will: 1. Receive either daily oral Vitamin C supplementation or a placebo for a period of 6 months. Undergo monthly clinical evaluations, including spirometry and symptom assessments. 2. Report any adverse events or health changes during the trial.

In this multicenter, prospective, randomized controlled study, we aimed to figure out, compared with the global chronic obstructive pulmonary disease initiative (GOLD) guideline -guided antibiotic therapy, whether Interleukin 6 (IL6)-guided antibiotic therapy for acute exacerbation of chronic obstructive pulmonary disease (AECOPD) can lead to a reduction in the use of antibiotics without increasing the rate of treatment failure.

Autoimmune gastritis is currently relatively rare in China due to its insidious onset, diverse clinical manifestations involving multiple systems such as digestive, hematological, and nervous systems, and its association with other autoimmune diseases. It can also be complicated by hyperplastic gastric polyps, gastric neuroendocrine tumors, gastric adenocarcinoma, and other diseases, making it prone to clinical misdiagnosis. As a form of gastritis in the post-Helicobacter pylori era, its detection rate has been gradually increasing with the continuous improvement of endoscopic technology in China. Applying the PDCA cycle management in disease diagnosis can significantly improve the detection rate of the disease, benefiting patients. Through the PDCA management model, this study further enhanced gastroenterologists' understanding of this disease from various aspects, aiming to improve the clinical diagnosis of autoimmune gastritis.

The goal of this clinical trial is to test CD19-7×19 CAR-T cells combined with Tislelizumab in refractory and relapsed diffuse large B lymphoma. The main question\[s\] it aims to answer are: question 1：What is the safety of CD19-7×19 CAR-T cells combined with Tislelizumab in the treatment of relapsed or refractory diffuse large B-cell lymphoma. question 2：What is the efficacy of CD19-7×19 CAR-T cells combined with Tislelizumab in the treatment of relapsed or refractory diffuse large B-cell lymphoma. Participants will be asked to receive clinical evaluation before CAR-T, including physical examination, blood routine test, biochemical test, imaging test, etc.Peripheral blood lymphocytes will be collected for preparation of CAR-T cells after enrollment. Pretreatment chemotherapy with fludarabine and cyclophosphamide will be used before CAR-T infusion. On the 31st day after CAR-T infusion, Tislelizumab 200mg was given once every 21 days for 6 cycles. Participants will be required to report concomitant medication and adverse events, and their disease was evaluated throughout the study.