Changhai Hospital

This study tests whether treating an extra area in the heart (the superior vena cava) along with the standard treatment (pulmonary vein isolation) can better prevent irregular heartbeats in people with paroxysmal atrial fibrillation. About 650 adults aged 18-80 will be randomly a…

This early-phase study tests a new treatment called CD19/BCMA CAR-NK cells for people with IgG4-related disease that has come back or not responded to standard care. The goal is to see if these specially engineered immune cells are safe and can put the disease into remission with…

This study tests whether giving three drugs (epacadostat, lenvatinib, and standard chemotherapy) before surgery can completely eliminate esophageal cancer in 33 adults with stage II to IVa disease. The main goal is to see if no cancer remains in the removed tissue. Participants m…

This study looks at whether a special microscope on a thin probe (pCLE) can find early stomach cancer more accurately than a standard tissue biopsy. Researchers will review past cases from 169 patients who had both tests before surgery. The goal is to see which method better iden…

This study tests whether spraying a mixture of acetic acid and indigo carmine dye inside the colon during a colonoscopy helps doctors find more flat, hard-to-see polyps called sessile serrated lesions. These polyps can turn into colorectal cancer if missed. About 2,689 adults age…

This study looks back at medical records of 350 people who had a capsule endoscopy (swallowing a pill-sized camera) for gastrointestinal bleeding. Researchers want to see how often the camera finds the bleeding source and if any problems occur. No new tests or visits are needed—o…

This study tests a device that flattens colon polyps before they are examined under a microscope. The goal is to help pathologists see key features that are often missed with standard methods. About 1,156 adults having polyps removed during a colonoscopy will take part. If succes…

This study tests a new balloon-assisted method against the standard water-injection technique for creating a bypass around a stomach blockage (gastric outlet obstruction). The goal is to relieve symptoms like nausea and vomiting in patients who cannot have surgery. About 272 adul…

This study will follow 800 people, including those with chronic pancreatitis, pancreatic cancer, and healthy volunteers, to learn why some pancreatitis patients later get pancreatic cancer. Participants give blood samples and health info; some may also provide tissue samples. Res…