Clinical Trials

Do you or a loved one have pneumonia? This study will test whether combining two medicines to reduce inflammation of the airway and to keep it open may help prevent respiratory failure in people who have pneumonia. To participate in this study, you must be at least 18 years old and have severe pneumonia with low blood oxygen levels.

Are you an adult who has PAD and overweight or obesity? This study aims to learn whether participating in an exercise program with a weight loss program reduces PAD signs and symptoms more than an exercise program alone. To participate, you must be between 18 and 85 years old, have PAD, and have a body mass index (BMI) greater than 28 but less than 45. Participants must also be willing to use a smartphone and attend weekly study sessions. This study is located in Evanston, Illinois; New Orleans, Louisiana; and Minneapolis, Minnesota.

Do you want to help find new treatments for heart failure with preserved ejection fraction? This study is testing whether a medicine called spironolactone can help treat heart failure with preserved ejection fraction when paired with the standard treatment. Spironolactone helps to remove excess water and sodium from the body. To participate in this study, you must be between 50 and 99 years old and diagnosed with heart failure with preserved ejection fraction.

Have you been diagnosed with peripartum cardiomyopathy and are within 5 months of your due date? This study is evaluating the effectiveness of a medicine called bromocriptine to treat peripartum cardiomyopathy, or weakness of the heart muscle that occurs during or shortly after pregnancy. To participate in this study, you must be at least 18 years old, diagnosed with peripartum cardiomyopathy, and within 5 months of your delivery date. This study takes place in Pittsburgh, Pennsylvania.

Do you have heart failure with preserved ejection fraction (HFPEF)? This study is testing the efficacy of a diuretic medicine called spironolactone that stops your body from absorbing too much salt and keeps your potassium levels from dropping too low. Participants of this study must be between 50 and 99 years old and already taking diuretic medicine. This study takes place in multiple locations across the United States and Sweden.

Are you 65 years old or older, and do you have severe primary mitral regurgitation? This condition — also called degenerative mitral regurgitation — happens when there is a problem with the mitral valve itself or its supporting tissue, leading to a leaky valve. This study is comparing the safety and effectiveness of two different ways of repairing the mitral valve: transcatheter edge-to-edge repair and surgical repair. To participate in this study, your healthcare provider must determine that you are a candidate for both mitral valve transcatheter edge-to-edge repair and surgical repair. This study takes place in multiple locations across the United States and Canada.

Are you an adult with high blood pressure who receives medical care from a Federally Qualified Health Center (FQHC)? This study is testing intervention strategies to help people from underserved communities lower their blood pressure and prevent cardiovascular disease. To participate in this study, you must be 40 years old or older and have high blood pressure that puts you at risk for cardiovascular diseases such as stroke or heart failure. This study takes place in New Orleans, Louisiana, and Biloxi, Mississippi.

Are you at least 55 years old and fully insured by Blue Cross Blue Shield of Louisiana, and do you want to improve your blood pressure? This study is testing a health coaching approach to help people with high blood pressure take their medicine correctly and on time. To participate in this study, you must have high blood pressure that is not well-controlled by medicine. This study takes place in New Orleans, Louisiana.

DIVA is a pragmatic randomized clinical trial (RCT) to determine: among (P) preterm infants born 24-27 6/7 weeks gestation undergoing extubation from mechanical ventilation, whether (I) Non-invasive neurally adjusted ventilatory assist (NIV-NAVA) (C) compared with Non-synchronized nasal intermittent positive pressure ventilation (NS-NIPPV), will reduce the incidence of (O) extubation failure within (T) 5 days (120 hours) of extubation.

Are you in need of a heart or lung transplant or have you had one in the past 3 months? Have you undergone a lung or heart transplant in the past 3 months or are you a candidate for heart or lung transplant? Some people with advanced heart and lung disease have heart and lung transplants but these new organs are often rejected. When this happens, patients must have repeated biopsies, which are invasive and expensive. Researchers in this clinical study want to see if a blood test can predict organ rejection and take the place of biopsies. To participate, you must be 18 to 80 years old and be a candidate for heart or lung transplant or have had a heart or lung transplant no more than three months ago. The study is taking place in Bethesda, Maryland, at the NIH Clinical Center, as well as in Baltimore, Maryland, and Falls Church, Virginia.