Clinical Trials

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 an adult with mild heart failure and a left bundle branch block? This study will test whether a type of pacemaker called a cardiac resynchronization device can help the heart pump more blood in people who have mild heart failure (HF) and left bundle branch block. In the study, participants will have a cardiac resynchronization device implanted. This study is located in Bethesda, Maryland.

Are you a woman with coronary microvascular dysfunction? In this clinical trial, researchers are studying coronary microvascular dysfunction, which occurs when there are problems in the small blood vessels in the heart. It frequently causes chest pain and is more common in women. The researchers want to learn how daily life and mental stress affect the heart. You may be able to participate if you are at least 45 years old, have gone through menopause, and are willing to undergo tests to measure your stress level. The study is taking place at locations in Atlanta, Georgia.