U.S. flag

An official website of the United States government

Here’s how you know
Here’s how you know

**Official websites use .gov**
A **.gov** website belongs to an official government organization in the United States.

**Secure .gov websites use HTTPS**
A **lock** ( A locked padlock) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Search Query:
			MAIN MENU

																				
              Health Topics
								All Health Topics A-Z
					
													
		

		Asthma


				

															Heart-Healthy Living


				

															High Blood Pressure


				

															Sickle Cell Disease


				

															Sleep Apnea


				

															Information & Resources on COVID-19
																				
              Health Education
								Education Programs and Initiatives
					
													
		

		The Heart Truth®


				

															Learn More Breathe Better®


				

															Blood Diseases and Disorders Education Program


				

															Publications and Resources
																				
              The Science
								Research Focus Areas
					
													
		

		Blood Disorders and Blood Safety


				

															Sleep Science and Sleep Disorders


				

															Lung Diseases


				

															Health Disparities and Inequities


				

															Heart and Vascular Diseases


				

															Precision Medicine Activities


				

															Obesity, Nutrition, and Physical Activity


				

															Population and Epidemiology Studies


				

															Women’s Health


				

															Research Topics


				

															Clinical Trials


				

															All Science A-Z
																				
              Grants and Training
								Grants and Training Home


				

															Policies and Guidelines


				

															Funding Opportunities and Contacts


				

															Training and Career Development
																				
              News and Events
								News and Events Home
					
													
		

		Email Alerts


				

															All News
					
													
		

		NHLBI News


				

															NHLBI in the Press


				

															Research Features


				

															All Events
					
													
		

		Past Events


				

															Upcoming Events
																				
              About NHLBI
								About NHLBI Home
					
													
		

		Mission and Strategic Vision


				

															Leadership


				

															Divisions, Offices and Centers


				

															Advisory Committees


				

															Budget and Legislative Information


				

															Jobs and Working at the NHLBI


				

															Contact and FAQs


				

															NIH Sleep Research Plan
						
						HOME
		Search Text: Clinical Trials
					
            Español
      
			
            The NHLBI leads or sponsors studies for patients who have heart, lung, blood, or sleep related diseases or disorders. Find studies for diseases and conditions and see if you or a loved one is eligible.
microscope
      How Clinical Trials Work
              person
      Who Can Participate
              asterisk
      Benefits, Risks & Safety Measures
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.
  Filter by:
      Close
    
          Disease or Condition
        
          CLEARAnemiaAngina (Chest Pain)Aplastic AnemiaArrhythmiasAsthmaAtherosclerosisAtrial FibrillationBleeding DisordersBlood CholesterolBlood Clotting DisordersBronchiectasisBronchitis(-)
Cardiac ArrestCardiomyopathyCircadian Rhythm DisordersConduction DisordersCongenital Heart DefectsCOPDCoronary Artery Bypass GraftingCoronary Heart DiseaseCystic FibrosisHeart-Healthy LivingHeart FailureHeart SurgeryHeart TestsHeart TreatmentsHeart Valve DiseasesHemolytic AnemiaHigh Blood PressureHigh Blood TriglyceridesHow Sleep WorksHow the Lungs WorkIdiopathic Pulmonary FibrosisInsomniaInterstitial Lung DiseasesLAMLong QT SyndromeLow Blood PressureLung Disease TreatmentsMetabolic SyndromeNarcolepsyNewborn Breathing ConditionsOverweight and ObesityPeripheral Artery DiseasePhysical Activity and Your HeartPlatelet DisordersPleural DisordersPneumoniaPulmonary HypertensionPulmonary RehabilitationRespiratory FailureSickle Cell DiseaseSleep ApneaSleep Deprivation and DeficiencySleep StudiesSmoking and Your HeartStrokeTests for Lung DiseaseThe LungsTreatments for Blood DisordersVenous ThromboembolismVentilator/Ventilator Support

        + View More Filters
Location
        
          (-)
CLEARIndiana
Age Group
        
          (-)
CLEARAdult (18-64)Senior (65+)
Recruitment Status
        
          (-)
CLEARRecruiting

        ━
        View Less Filters
    
          FILTER BY KEYWORD
Clear AllCardiac Arrest
Showing 1 - 1 out of 1 results
      
      Novel Approaches for Minimizing Drug-Induced QT Interval Lengthening
      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.
      Arrhythmias
              Long QT Syndrome
              Cardiac Arrest
                          Adult, Older Adult
                                      Accepting Healthy Volunteers Back To Top Link
  

        

        Back to top
  Web Policies & Notices
  

        

              Accessibility
                      No FEAR Act Data
                      Privacy Policy
                      Freedom of Information Act (FOIA)
                      HHS Vulnerability Disclosure
    
          Related Government Websites
  

        

              Health and Human Services
                      National Institutes of Health
                      Office of the Inspector General
                      USA.gov
    
          Stay Connected
    
      
            chat bubblesLive ChatLive Chat with us, Monday through Friday, 8:30 a.m. to 5:00 p.m. EST.envelopeGet Email AlertsReceive automatic alerts about NHLBI related news and highlights from across the Institute.
  Footer Bottom
  

        



Contact Us
                            Site Index
                            Jobs