- Conditions
- Heart Failure With Preserved Ejection Fraction, Obesity
- Interventions
- HeO2 gas mixture, Room air gas mixture
- Other
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 55 Years to 90 Years
- Enrollment
- 78 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2029
- U.S. locations
- 1
- States / cities
- Dallas, Texas
Heart Failure clinical trials
Directory of U.S. ClinicalTrials.gov public records for Heart Failure. Browse Heart Failure recruiting trials, filter by phase, sponsor, location, or intervention, and open the official ClinicalTrials.gov study record for each result.
By Clinical Trials Finder Guidance last reviewed June 10, 2026 Data synced October 10, 2026 Report an issue
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
How Heart Failure studies are organized in the registry
Heart failure records routinely distinguish reduced versus preserved ejection fraction — the abbreviations HFrEF and HFpEF appear directly in titles and condition fields and are the cleanest way to split the portfolio. Device and monitoring studies form a substantial share alongside drug trials.
These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.
Live official records
Open in full search- Conditions
- Fontan Circulation, Single Ventricle Heart Disease, HFpEF - Heart Failure With Preserved Ejection Fraction
- Interventions
- Dapagliflozin tablet, Placebo Tablet
- Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Heart Failure, Heart Failure With Reduced Ejection Fraction, Heart Failure, Systolic, Heart Failure With Preserved Ejection Fraction, Heart Failure, Diastolic
- Interventions
- Lactobacillus Plantarum 299v Freeze Dried Capsule, Freeze Dried Potato Starch Capsule
- Other
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 21 Years to 89 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Heart Failure With Preserved Ejection Fraction, Inflammation
- Interventions
- L-Citrulline, Placebo for L-Citrulline, BH4, Placebo for BH4, Atorvastatin, Placebo for Atorvastatin
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2030
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Hypertension Pulmonary Secondary Heart Failure, Right Sided Heart Failure With Normal Ejection Fraction, Heart Failure With Normal Ejection Fraction
- Interventions
- Levosimendan
- Drug
- Lead sponsor
- Tenax Therapeutics, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2023
- U.S. locations
- 9
- States / cities
- Stanford, California • Chicago, Illinois • Minneapolis, Minnesota + 6 more
- Conditions
- HFpEF
- Interventions
- Exercise training
- Other
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2028
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Heart Failure With Preserved Ejection Fraction
- Interventions
- Empagliflozin + Potassium Chloride, Empagliflozin + Potassium Nitrate, Potassium Chloride + Placebo for Empagliflozin
- Drug
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 53 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Preeclampsia, Heart Failure Preserved Ejection Fraction, Hypertension
- Interventions
- Not listed
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 500 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Heart, Heart Failure With Preserved Ejection Fraction (HFPEF)
- Interventions
- VS-041, Placebo
- Drug · Other
- Lead sponsor
- Vasa Therapeutics
- Industry
- Eligibility
- 50 Years and older
- Enrollment
- 42 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 21
- States / cities
- Little Rock, Arkansas • Huntington Beach, California • Santa Maria, California + 18 more
- Conditions
- Heart Failure
- Interventions
- Kansas City Cardiomyopathy Questionnaire-12
- Other
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,249 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Type2 Diabetes, Heart Failure With Preserved Ejection Fraction
- Interventions
- Empagliflozin 25 MG, Placebo
- Drug
- Lead sponsor
- The University of Texas Health Science Center at San Antonio
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- San Antonio, Texas
- Conditions
- Atrial Fibrillation, Heart Failure With Normal Ejection Fraction
- Interventions
- Pulmonary Vein Isolation
- Procedure
- Lead sponsor
- Inova Health Care Services
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 13 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Fairfax, Virginia
About this Heart Failure clinical trials directory page
- What this page lists
- U.S. ClinicalTrials.gov public records that list Heart Failure as a study condition, including recruiting, not yet recruiting, and active not recruiting trials across phase 1, phase 2, and phase 3.
- How to narrow results
- Use the filters above to scope by intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, age, or NCT ID within Heart Failure.
- Where the data comes from
- Records are sourced from the official ClinicalTrials.gov public API. Each result links back to the official study page, which is the source of truth for eligibility, enrollment, and contact information.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, ranking of trials by quality, or AI-generated medical summaries.
Related: all condition pages, browse by drug or therapy, browse by U.S. city, browse by sponsor, or open the full search for Heart Failure.