Asan Medical Center

This study looks at whether adding surgery after chemotherapy can help women with platinum-sensitive recurrent ovarian cancer live longer without their cancer growing. About 160 participants whose tumors shrank with chemo will be randomly assigned to get surgery plus more chemo o…

This study compares two blood-thinning medicines, aspirin and warfarin, to see which is safer for preventing clots in the first 6 months after a tissue heart valve replacement. About 1,058 adults who had aortic or mitral valve surgery will be randomly assigned to one of the two t…

This study tests whether inhaled nitric oxide can help newborns with a hole in their diaphragm (congenital diaphragmatic hernia) who also have high blood pressure in their lungs. About 40 babies will receive the gas, and doctors will check if their oxygen levels improve. The goal…

This study tests whether a blood test that detects tiny bits of tumor DNA can help decide who should get extra chemotherapy after esophageal cancer surgery. About 172 adults with stage 2 or 3 esophageal cancer will be randomly assigned to either receive chemotherapy plus an immun…

This study tests two oral drugs, lenvatinib and regorafenib, in people with advanced liver cancer that worsened after initial immunotherapy. The goal is to see how well these drugs control tumor growth and extend life. About 146 adults with varying liver function will take the me…

This study will observe 1000 adults having planned brain surgery to see if the thickness of their blood during the operation is linked to problems like infections, kidney injury, or death within 30 days. Researchers will measure blood viscosity and oxygen levels in the brain. The…

This study will test a new blood test that looks for tiny bits of cancer DNA (called MRD) in 600 people with endometrial or cervical cancer. The goal is to see if this test can find cancer coming back earlier than current methods like CT scans. Participants will give blood sample…

This study uses ultrasound to compare two ways of looking at a large vein under the collarbone (the subclavian vein) to see which is safer for inserting catheters. Researchers will scan 55 adults during anesthesia, measuring how far the vein is from the lung and artery. The goal …