Find NHLBI Clinical Trials

Search selected NHLBI-supported clinical trials and observational studies by condition, location, or age group. You can also view the complete list of NHLBI-funded studies at ClinicalTrials.gov.

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Showing 1 - 10 out of 10 results
Recruiting
California
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.
Adult, Older Adult
Recruiting
Alabama
Do you have chronic bronchitis and COPD and want to improve treatment? This study will be testing how well a medicine called ivacaftor that is used to treat cystic fibrosis works also to treat symptoms of chronic bronchitis. New research suggests chronic bronchitis may be due to a problem similar to cystic fibrosis. To participate in this study, you must be 40 to 80 years old, have a history of smoking, and have not been diagnosed with asthma or cystic fibrosis. This study will be conducted in Birmingham, Alabama.
Adult, Older Adult
Recruiting
Massachusetts
Do you have COPD? This study will be looking for genes that may play a role in the development of COPD by looking at the blood from patients who have COPD, as well as the blood from those patients’ family members. To participate in this study, you must be 52 years old or younger and must not be pregnant or have other serious lung diseases such as lung cancer. This study will be conducted in Boston, Massachusetts.
All Ages
Recruiting
Maryland
Are you a healthy adult or someone with a history of lung infections such as pneumonia or bronchitis? This study aims to compare fluid and tissue samples from the nose and lungs of healthy adults with people who have a lung disease. Researchers hope to learn why some people are more susceptible to certain infections. This study is located at the NIH Clinical Center in Bethesda, Maryland.
All Ages
Accepting Healthy Volunteers
Recruiting
Massachusetts
Are you scheduled for open-heart surgery for your aortic valve? This study aims to look at changes in inflammation and gene activity while surgery patients are on a heart-lung bypass machine. To participate in this study, you must be at least 20 years old and be scheduled for aortic valve surgery, either with or without coronary artery bypass grafting (CABG). This study is located in Boston, Massachusetts.
Adult, Older Adult
Recruiting
Did you develop atrial fibrillation after coronary artery bypass graft (CABG) surgery? Did you develop atrial fibrillation after a coronary artery bypass grafting (CABG) surgery? This study is looking at how well oral anticoagulation medicines work to prevent complications, such as blood clots and heart attack, for patients who experience post-operative atrial fibrillation (POAF). This study is in multiple locations around the country.
Adult, Older Adult
Recruiting
Tennessee
The study is to investigate that the worsening orthostatic tachycardia and symptoms after glucose ingestion in POTS patients are due to a greater increase in splanchnic venous capacitance and excessive blood pooling during an orthostatic challenge.
Adult
Accepting Healthy Volunteers
Recruiting
Missouri
Is your newborn in the neonatal intensive care unit at St. Louis Children’s Hospital? This study aims to better understand breathing problems and blood flow through the heart in premature newborns to better detect conditions such as pulmonary hypertension. To participate in this study, your newborn must have been born prematurely between 24 and 29 weeks’ gestation and be a patient in the Neonatal Intensive Care Unit at St. Louis Children’s Hospital. This study is located in St. Louis, Missouri.
Child
Recruiting
Indiana
Have you been diagnosed with high blood pressure while pregnant? This study is investigating whether a mother’s blood pressure during pregnancy affects her newborn’s lung development. To participate in this study, your newborn must have been born either prematurely at more than 25 weeks’ gestation or at full term to a healthy mother or a mother who was diagnosed with high blood pressure during pregnancy. This study is located in Indianapolis, Indiana.
All Ages
Recruiting
Florida
Is your newborn in the NICU at Holtz Children’s Hospital in Miami? Newborns born very prematurely often need oxygen therapy or ventilation to help them breathe and survive. This study will help doctors understand how changes in oxygen and carbon dioxide levels while newborns are getting treatment affect how their lungs develop. While your newborn is in the newborn neonatal intensive care unit (NICU), researchers will record his or her oxygen and carbon dioxide levels, heart rate, and other measures. To participate in this study, your newborn must have been born prematurely between 23 and 28 weeks’ gestation, be less than 28 days old, and be receiving oxygen therapy. This study is located in Miami, Florida.
All Ages