Asan Medical Center

This study tests two oral drugs, lenvatinib and regorafenib, in people with advanced liver cancer that worsened after initial immunotherapy. About 146 adults with varying liver function will take one of these pills daily. Researchers will measure how long the drugs control cancer…

This study compares two blood thinners—aspirin and warfarin—in people who have had a tissue heart valve replacement. Over 1,000 participants will take one of the two medicines for six months after surgery. The goal is to see which one is safer and better at preventing blood clots…

This study looks at whether adding surgery after chemotherapy can help women whose ovarian cancer has come back but still responds to platinum-based drugs. About 160 participants will be randomly assigned to get either chemotherapy alone or chemotherapy plus surgery to remove vis…

This study tests whether using a blood test to detect leftover cancer DNA can help decide who needs extra chemotherapy after esophageal cancer surgery. About 172 adults with stage 2-3 esophageal cancer will be randomly assigned to either standard follow-up or chemotherapy plus an…

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 will measure blood thickness during planned brain surgery in 1000 adults to see if it relates to brain oxygen levels and complications like infections or kidney problems within 30 days after surgery. No new treatments are tested—the goal is to better understand risk fa…

This study will enroll 600 people with endometrial or cervical cancer to see if a blood test can detect cancer recurrence earlier than standard methods. Participants give blood samples at diagnosis, after treatment, and during follow-up. The goal is to improve monitoring and guid…

This study uses ultrasound to compare two ways of looking at a major vein under the collarbone (subclavian vein) to see which is safer for placing catheters. Researchers will scan 55 adults during anesthesia, measuring distances to nearby arteries and lungs. The goal is to provid…