Extrahepatic cholestasis

This study tests two methods for widening a blocked bile duct during a special endoscopy procedure. One method uses a mechanical dilator, the other uses an electrocautery device. The goal is to see which causes less bleeding. The trial will involve 64 patients who cannot have sta…

This study at the National Institutes of Health is looking at 1,000 adults with known or suspected hormone gland (endocrine) disorders. The goal is to better understand these conditions and help train doctors. Participants may receive tests, treatments, or surgery as part of thei…

This study enrolls up to 15,000 children with known or suspected endocrine or metabolic disorders, along with their family members. Researchers will collect medical records, blood, saliva, and other samples to identify genetic changes linked to these conditions. The goal is to be…

This study aims to collect medical data and biological samples (blood, urine, stool, and tissue) from up to 4,000 adults with known or suspected gastrointestinal diseases. Participants receive standard medical care at the NIH, and any extra samples or leftover tissue from procedu…

This study enrolls adults with known or suspected endocrine (hormone gland) disorders, such as diabetes or thyroid disease, to help researchers learn more about these conditions. Participants will undergo medical exams, blood and imaging tests, and possibly genetic testing. The m…

This study is testing a tool called B-COMPASS that uses a 22-question survey to predict whether people will follow their prescribed treatments. Researchers will enroll 3100 adults with cardiovascular, endocrine, immune, nerve, cancer, or rare diseases across Europe. The goal is t…

This study is using advanced whole-genome sequencing to find hidden genetic causes of cholestatic liver disease in adults whose condition remains unexplained after standard tests. Researchers will compare the DNA of 60 affected adults to a large group of healthy controls. The goa…

This study compares two advanced techniques used when doctors have trouble reaching the bile duct during a procedure called ERCP. About 188 adults with difficult bile duct access will be randomly assigned to either an endoscopic ultrasound-guided rendezvous technique or an early …

This study tracks 1,000 patients undergoing major liver, pancreas, or bile duct surgery to see if the time it takes for their albumin levels to return to normal can predict complications and length of hospital stay. Albumin is a protein that drops after surgery due to inflammatio…