Clinical Trials and Studies

Do you or your child have sickle cell disease and access to a smart phone? This study tests whether a mobile app can help adolescents and young adults who have sickle cell disease take medicine, such as hydroxyurea, correctly and on time. To participate in this study, you or your child must be between 12 and 21 years old, have sickle cell disease, and be currently taking hydroxyurea. This study takes place in Chicago, Illinois.

Do you or your child have sickle cell disease and receive blood transfusion treatment? This study aims to determine how long red blood cells survive in people with sickle cell disease. Some people receive blood transfusions from donor blood as a treatment for sickle cell disease. But sometimes, donor blood cells do not survive long once transfused, which can make long-term blood transfusions less effective as a treatment option. Participants in this study must be 6 years old or older and have already been receiving blood transfusion treatment for more than 3 months. This study takes place in Atlanta, Georgia.

Do you have sickle cell disease and need chronic red blood cell (RBC) transfusions? This study aims to determine the effectiveness of matching donor red cells by RH genotype for people who need frequent RBC transfusions. Participants in this study must be 1 year or older. This study is located in Philadelphia, Pennsylvania.

Do you or your child have sickle cell disease? This study aims to develop a mathematical equation to estimate the functioning of the kidneys in children and adults with sickle cell disease. To participate in this study, you or your child must be between 5 and 50 years old. This study takes place in Birmingham, Alabama; Chicago, Illinois; and Memphis, Tennessee.

Are you an adult with sickle cell disease who doesn't experience pain episodes? This study uses machine learning to identify sickle cell disease patients who may be at increased risk of chronic kidney disease. To participate in this study, you must be between 18 and 65 years old with sickle cell disease and not experiencing any painful episodes. This study takes place in Chicago, Illinois, Winston-Salem, North Carolina, and Memphis, Tennessee.

This study is testing whether a new imaging technique can help healthcare providers diagnose venous thromboembolism. To participate in this study, you must be at least 18 years old and diagnosed with venous thromboembolism. This study takes place in Boston, Massachusetts.

This study is testing whether a medicine called metformin can help treat aortic aneurisms in the abdomen. The study will use imaging tests to examine whether metformin can help prevent these aortic aneurisms from getting bigger. To participate in this study, you must be 55 to 90 years old and diagnosed with an abdominal aortic aneurism. This study takes place in Stanford, California.

Are you a woman who is postmenopausal or a man older than 65? This study will investigate the effects of oral progesterone for older women and testosterone for older men on QT intervals. QT intervals that are increased by medicine can lead to dangerous heart rhythm problems. Researchers hope to learn more about why this happens and how to deliver safer doses. This study is located in Indianapolis, Indiana.

Are you an adult with heart failure and right bundle branch block (RBBB)? This study will evaluate the effectiveness and benefit of His-bundle-pacing enhanced cardiac resynchronization therapy (His-CRT) versus cardiac resynchronization therapy (BiV-CRT). This study is located in Rochester, New York.

Are you a female between 18 and 55 years old who has postural tachycardia syndrome (POTS)? This study is looking at the sympathetic nervous system and its effect on the increased heart rate and dizziness upon standing that people with POTS experience. This study is located in Nashville, Tennessee.