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 - 7 out of 7 results
Recruiting
Wisconsin
Do you have a high-risk pregnancy? This study will investigate the use of a non-invasive scan called fetal magnetocardiography to detect potential problems in the fetus in five high-risk pregnancy conditions associated with stillbirth. The scan is normally used to look at fetal heart rhythms. To participate in this study, you must be at least 18 years old and pregnant with one of the following: having a stillbirth in a previous pregnancy, carrying identical twins, or having a fetus that has been diagnosed with major congenital heart disease, fetal hydrops, or fetal gastroschisis. This study takes place in Madison and Milwaukee, Wisconsin.
Adult, Older Adult
Female
Recruiting
Indiana
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.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Illinois
Demonstrating the feasibility, effectiveness, and cost-effectiveness of electronically delivered smoking cessation interventions via patient portals in Federally Qualified Health Care (FQHC) settings has the potential for wide-spread dissemination and significant public health impact. on patient populations with demonstrated high rates of smoking.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Pennsylvania
The purpose of this study is to examine the acute effects of nicotine free electronic cigarette aerosol on vascular function in healthy, non-smokers.
Adult
Accepting Healthy Volunteers
Recruiting
Iowa
The investigators will study the effect of pulmonary arterial vasodilation to see if it eliminates indices of persistent lung injury in smokers that are susceptible to emphysema.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Pennsylvania
The purpose of this study is to examine the acute effects of nicotine free electronic cigarette aerosol on vascular function in healthy, non-smokers.
Adult
Accepting Healthy Volunteers
Recruiting
Iowa
This study will use dual energy x-ray computed tomography (DECT) to evaluate the relationship between heterogeneous perfusion, hypoxia (low oxygen in inspired gas) and induction of pulmonary vascular dilatation to characterize emphysema susceptibility in a normal smoking population.
Adult, Older Adult
Accepting Healthy Volunteers