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CompletedNCT05139472Updated Sep 19, 2024

Impact of Empagliflozin on Functional Capacity in Heart Failure with Preserved Ejection Fraction

A Phase 4 interventional study of Empagliflozin 10 MG in Heart Failure with Preserved Ejection Fraction, Heart Failure, Diastolic and Diabetes Mellitus, sponsored by University of Texas Southwestern Medical Center. Completed at 2 sites in United States. Open to participants aged 50 Years to 85 Years. Per ClinicalTrials.gov, last updated 2024-09-19.

Sponsored by University of Texas Southwestern Medical Center · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Sep 2023, 3 years ago, and no results have been posted to the registry; the sponsor requested a delay in submitting them in Aug 2024.
Phase
Phase 4
Study type
Interventional
Enrollment
8
Allocation
Not applicable
Ages
50 Years to 85 Years
Sex
All
01

Study summary

Sodium-Glucose Cotransporter-2 (SGLT-2) inhibitors generally and empagliflozin specifically have shown cardiovascular benefits in patients with heart failure (HF), but the underlying mechanisms remain unclear. Empagliflozin use resulted in lower pulmonary artery diastolic pressures in patients with HF, suggesting a beneficial diuretic effect. Other potential mechanisms include increased blood volume, decreased blood pressure, and changes in sympathetic and neuro-hormonal activation.

This study is a single-arm, open label, prospective interventional study of 8 subjects with heart failure with preserved ejection fraction (HFpEF). Before and after 12 weeks of daily empagliflozin, participants with undergo comprehensive invasive exercise testing with a right heart catheter. Our goal is to evaluate the effects of empagliflozin on fitness, assessed by peak VO2, and peak left ventricular filling pressure, assessed by pulmonary capillary pressure at peak exercise.

Read the detailed description

This is a single-arm, open label, pilot study of 8 subjects with HFpEF. The subjects will undergo screening tests (exercise stress echo and blood work) to evaluate for potential exclusion criteria and provide familiarization to the exercise protocol. Those included will undergo an echocardiogram and invasive cardiopulmonary exercise test. This involves placement of a right heart catheter in the pulmonary artery and undergoing seated, upright exercise. During the exercise test, the subject's oxygen uptake (VO2), intra-cardiac pressures (right atrial pressure, pulmonary capillary wedge pressure) and cardiac output (Qc) will be measured. The subject will take a dose of empagliflozin in the lab and wait for at least 60 minutes. They will repeat a shortened version of the exercise test in the afternoon. After baseline testing, each subject will take 10mg empagliflozin daily for 12 weeks. They will have repeat blood work (specific electrolytes and renal function) 30 days after starting medication to screen for renal injury. After 12 weeks, they will return for another invasive cardiopulmonary exercise test and echocardiogram.

02

Conditions studied

  • Heart Failure with Preserved Ejection Fraction
  • Heart Failure, Diastolic
  • Diabetes Mellitus

Keywords

  • Exercise
  • Invasive Exercise Testing
  • SGLT-2 Inhibitors
03

In context

Heart Failure

5,703 studies on the registry are indexed under Heart Failure; 1,220 are open to participants now.

This study's enrollment of 8 is below the median of 72 across 3,737 interventional studies indexed under Heart Failure.

Browse Heart Failure studies →

Lead sponsor

University of Texas Southwestern Medical Center is the lead sponsor of 990 studies on the registry; 201 are open to participants now.

Of its 135 completed or terminated interventional studies of FDA-regulated products, 101 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • adults ages 50-85
  • clinical heart failure
  • ejection fraction > 50%

Exclusion criteria

Exclusion Criteria:

  • previous hypersensitivity or adverse reaction to SGLT-2 inhibitors
  • currently treated with SGLT-2 inhibitor
  • current or prior ejection fraction \<50%
  • chronic kidney disease with glomerular filtration rate \< 45 ml/kg/min
  • unstable coronary artery disease
  • significant arrhythmia
  • BMI >55 kg/m2
  • inability to exercise.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Experimental
    Treatment Arm

    This arm of the study will take 10 mg empagliflozin daily for 12 weeks

    Drug: Empagliflozin 10 MG

Interventions

  • DrugEmpagliflozin 10 MG

    Daily Empagliflozin

06

What researchers measure

Primary outcomes

  1. Peak Oxygen Uptake

    Peak VO2 measured on maximal exercise test

    Time frame: 12 weeks

  2. Peak Pulmonary Capillary Wedge Pressure (PCWP)

    Peak PCWP, measured at end-expiration, at the end of maximal exercise test

    Time frame: 12 weeks

Secondary outcomes

  1. Primary Endpoints after single dose of empagliflozin

    Peak VO2 and peak PCWP will be measured after a single dose of empagliflozin

    Time frame: 1 hour

  2. Cardiac Output at Rest and During Exercise

    Time frame: 12 weeks

  3. Stroke Volume at Rest and During Exercise

    Time frame: 12 weeks

  4. Right Atrial Pressure at Rest and During Exercise

    Time frame: 12 weeks

  5. Pulmonary Capillary Wedge Pressure at Rest and During Submaximal Exercise

    Time frame: 12 weeks

  6. Left ventricular volumes at rest and during submaximal exercise

    Measured by echocardiography

    Time frame: 12 weeks

  7. Hemoglobin mass, plasma volume, total blood volume

    Measured by Carbon Monoxide Rebreathe

    Time frame: 12 weeks

  8. Diastolic parameters at rest and during submaximal exercise

    Measured by echocardiography

    Time frame: 12 weeks

  9. 6 minute walk time

    Time frame: 12 weeks

07

Study locations

2 sites
  • Institute for Exercise and Environmental Medicine
    Dallas, Texas 75231, United States
  • University of Texas Southwestern Medical Center
    Dallas, Texas 75390, United States
08

References and documents

Individual participant data

Plan to share: No — De-identified data may be made available upon reasonable request

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05139472
Lead sponsor
University of Texas Southwestern Medical Center
Responsible party
James MacNamara (Assistant Professor of Medicine, University of Texas Southwestern Medical Center) — Principal investigator
First posted
Dec 1, 2021
Start date
Nov 9, 2021
Primary completion
Sep 20, 2023
Completion
Feb 19, 2024
Last update
Sep 19, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

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