Myocardial IschemiaPhase 1SMILENCT05762952
Effect of Dapagliflozin on Microvascular Function in Women With Symptoms of Coronary Artery Disease
A Phase 1 study testing Dapagliflozin 10mg Tab in people with Myocardial Ischemia, run by University of Virginia at 1 site in United States.
Trial summary
The goal of this clinical trial is to test the effects of a drug (in the drug class called sodium-glucose cotransporter 2 inhibitors) in women who have symptoms of ischemic heart disease. Read more about this study
- Who is it for?
- Ages 18 to 99 years, women only
- Conditions the study is for
- Myocardial Ischemia
- What is being tested?
- Dapagliflozin 10mg Tab
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 35 participants
- Where
- 1 siteUnited States
- Study dates
- 6 Jun 2023to 5 Aug 2025
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 99 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Willing to provide written informed consent.
- Signs and symptoms of suspected ischemia that prompted referral for further evaluation by cardiac catheterization or coronary computed tomography within two years of consent.
- No evidence of obstructive epicardial coronary artery disease (stenosis >50%) of a major epicardial vessel (>3mm) or a fractional flow reserve >0.80 by invasive catheterization or coronary computed tomography. (Participants who have not undergone cardiac catheterization or coronary angiogram within the last 2 years for their clinical care will be screened with computed angiogram of the coronary arteries to confirm eligibility).
- Estimated glomerular filtration rate ≥30ml/min/1.73m2 at enrollment
- For subjects having a history of type 2 diabetes mellitus: approval of diabetes care/prescribing provider
Who cannot join
- History of non-ischemic cardiomyopathy with left ventricular ejection fraction <40% or hypertrophic cardiomyopathy.
- History of congestive heart failure, severe pulmonary disease, liver disease
- History of Acute coronary syndrome within previous 30 days
- Stroke within the last 180 days or intracranial hemorrhage at any time.
- Severe Valvular disease
- Life expectancy <3 years, due to non-cardiovascular comorbidity.
Show all 13Show fewer
- Pregnancy or women who are breast-feeding
- Type 1 diabetes mellitus
- History of diabetic ketoacidosis in subjects with Type 2 Diabetes Mellitus
- Symptomatic hypotension or systolic blood pressure <95 mmHg on 2 consecutive measurements
- Active malignancy requiring treatment at the time of visit
- Severe, unstable, or rapidly progressing renal disease at the time of randomization
- History of recurrent urinary tract, bladder, or kidney infections
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Virginia
Charlottesville, Virginia, 22908
About this study
Official title: A Single-center, Randomized, Double-blind, Placebo-controlled Study to Evaluate Microvascular Disease After 12 Weeks of Therapy With Sodium-glucose Co-transporter 2 Inhibitor Compared to Placebo in Symptomatic Women With Non-obstructive Coronary Artery Disease
The goal of this clinical trial is to test the effects of a drug (in the drug class called sodium-glucose cotransporter 2 inhibitors) in women who have symptoms of ischemic heart disease. The main questions the study aims to answer are:
Does blood flow in the heart improve with study drug?
Participants will be randomly assigned to a 12-week course of the study drug, dapagliflozin 10mg, or placebo. Blood flow in the heart will be assessed using stress cardiac magnetic resonance imaging at baseline and 12 weeks. The researchers will compare the results from the two groups.
Read the detailed description
This single-center clinical investigation is a randomized, double-blind, placebo controlled trial of dapagliflozin in women who have symptoms of myocardial ischemia but in whom obstructive coronary artery disease has been ruled out by testing within 2 years.
Aim: Determine whether dapagliflozin improves coronary blood flow in women.
Participants will be randomly assigned to a 12-week course of dapagliflozin 10mg oral or placebo. Participants will complete study assessments at baseline, 6 weeks of treatment, and 12 weeks of treatment. Peak myocardial blood flows at rest and with pharmacological stress will be assessed using cardiac magnetic resonance imaging at baseline and 12 weeks. Symptom surveys and lab work will be collected at baseline, 6 weeks, and 12 weeks of treatment. Participants will be closely monitored throughout study participation for adverse events. Results will be captured in a database and published in a peer-reviewed journal.
- Conditions
- Myocardial Ischemia
- Being tested
- Dapagliflozin 10mg Tab, Placebo
- Medical subject headings
- Myocardial Ischemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dapagliflozin 10mg TabDrug
Also called active drug
Once daily oral dapagliflozin 10mg
PlaceboDrug
Also called Placebo matching tablet
Placebo capsules formulated by pharmacy to be indistinguishable from active drug
| Study group | Role | What they receive |
|---|---|---|
| Dapagliflozin | Experimental | Dapagliflozin 10mg oral tablet. Receives: Drug: Dapagliflozin 10mg Tab |
| Placebo | Placebo comparator | Placebo matching tablet. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Endocardial Myocardial Perfusion Reserve at Week 12
Endocardial myocardial perfusion reserve (MPR) was assessed using stress cardiac magnetic resonance (CMR) imaging. MPR represents the ratio of endocardial myocardial blood flow during pharmacologic vasodilator stress to endocardial myocardial blood flow at rest and is expressed as a unitless ratio. Higher values indicate greater myocardial perfusion reserve. Change from baseline was calculated as the Week 12 MPR ratio minus the baseline MPR ratio, with positive values indicating an increase in MPR and negative values indicating a decrease. The protocol did not prespecify a study-specific clinical threshold for interpretation of MPR.
Measured: Baseline to Week 12
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Mar 2023
- Study start6 Jun 2023
- Primary completion5 Aug 2025
- Study completion5 Aug 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Myocardial IschemiaStudies of the same condition, open and under way.
- More trials run by University of VirginiaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 35 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Virginia
- Sponsor type
- University, hospital or other
- Collaborators
- National Center for Advancing Translational Sciences (NCATS)
- Responsible party
- Principal investigator, Patricia Rodriguez Lozano, University of Virginia
- Investigators
- Patricia Rodriguez-Lozano, MD, Principal investigator, University of Virginia Health System
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05762952
- Sponsor's protocol ID
- HSR220123
- Other IDs
- KL2TR003016
- Acronym
- SMILE
- Status last verified
- Sep 2026
- First submitted
- 9 Jan 2023
- Last updated
- 6 Nov 2026
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Single-center, Randomized, Double-blind, Placebo-controlled Study to Evaluate Microvascular Disease After 12 Weeks of Therapy With Sodium-glucose Co-transporter 2 Inhibitor Compared to Placebo in Symptomatic Women With Non-obstructive Coronary Artery Disease
- ClinicalTrials.gov ID
- NCT05762952
- Acronym / sponsor ID
- SMILE / HSR220123
- Conditions
- Myocardial Ischemia
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 35 participants (actual)
- Lead sponsor
- University of VirginiaUniversity, hospital or other
- Collaborators
- National Center for Advancing Translational Sciences (NCATS)
- Study start
- 6 Jun 2023 (actual)
- Primary completion
- 5 Aug 2025 (actual)
- Study completion
- 5 Aug 2025 (actual)
- First posted
- 10 Mar 2023 (actual)
- Results
- Posted 6 Nov 2026
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this clinical trial is to test the effects of a drug (in the drug class called sodium-glucose cotransporter 2 inhibitors) in women who have symptoms of ischemic heart disease. The main questions the study aims to answer are:
Does blood flow in the heart improve with study drug?
Participants will be randomly assigned to a 12-week course of the study drug, dapagliflozin 10mg, or placebo. Blood flow in the heart will be assessed using stress cardiac magnetic resonance imaging at baseline and 12 weeks. The researchers will compare the results from the two groups.
Detailed description
This single-center clinical investigation is a randomized, double-blind, placebo controlled trial of dapagliflozin in women who have symptoms of myocardial ischemia but in whom obstructive coronary artery disease has been ruled out by testing within 2 years.
Aim: Determine whether dapagliflozin improves coronary blood flow in women.
Participants will be randomly assigned to a 12-week course of dapagliflozin 10mg oral or placebo. Participants will complete study assessments at baseline, 6 weeks of treatment, and 12 weeks of treatment. Peak myocardial blood flows at rest and with pharmacological stress will be assessed using cardiac magnetic resonance imaging at baseline and 12 weeks. Symptom surveys and lab work will be collected at baseline, 6 weeks, and 12 weeks of treatment. Participants will be closely monitored throughout study participation for adverse events. Results will be captured in a database and published in a peer-reviewed journal.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Dapagliflozin | Experimental | Drug: Dapagliflozin 10mg TabDapagliflozin 10mg oral tablet. |
| Placebo | Placebo comparator | Drug: PlaceboPlacebo matching tablet. |
Who may qualify
- Ages
- 18 to 99 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Willing to provide written informed consent.
- Signs and symptoms of suspected ischemia that prompted referral for further evaluation by cardiac catheterization or coronary computed tomography within two years of consent.
- No evidence of obstructive epicardial coronary artery disease (stenosis >50%) of a major epicardial vessel (>3mm) or a fractional flow reserve >0.80 by invasive catheterization or coronary computed tomography. (Participants who have not undergone cardiac catheterization or coronary angiogram within the last 2 years for their clinical care will be screened with computed angiogram of the coronary arteries to confirm eligibility).
- Estimated glomerular filtration rate ≥30ml/min/1.73m2 at enrollment
- For subjects having a history of type 2 diabetes mellitus: approval of diabetes care/prescribing provider
Key exclusion criteria (13 listed)
- History of non-ischemic cardiomyopathy with left ventricular ejection fraction <40% or hypertrophic cardiomyopathy.
- History of congestive heart failure, severe pulmonary disease, liver disease
- History of Acute coronary syndrome within previous 30 days
- Stroke within the last 180 days or intracranial hemorrhage at any time.
- Severe Valvular disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Dapagliflozin 10mg TabAlso: active drugOnce daily oral dapagliflozin 10mg | Drug | Dapagliflozin |
| PlaceboAlso: Placebo matching tabletPlacebo capsules formulated by pharmacy to be indistinguishable from active drug | Drug | Placebo |
Primary outcome
Change From Baseline in Endocardial Myocardial Perfusion Reserve at Week 12
Time frame: Baseline to Week 12
Endocardial myocardial perfusion reserve (MPR) was assessed using stress cardiac magnetic resonance (CMR) imaging. MPR represents the ratio of endocardial myocardial blood flow during pharmacologic vasodilator stress to endocardial myocardial blood flow at rest and is expressed as a unitless ratio. Higher values indicate greater myocardial perfusion reserve. Change from baseline was calculated as the Week 12 MPR ratio minus the baseline MPR ratio, with positive values indicating an increase in MPR and negative values indicating a decrease. The protocol did not prespecify a study-specific clinical threshold for interpretation of MPR.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Nov 2026.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: No
Related trials for Myocardial Ischemia
Not yet recruitingPhase 4
Roxadustat and Myocardial Injury After Off-Pump Coronary Artery Bypass Surgery
Coronary Artery Disease, Coronary Artery Bypass Grafting
RecruitingObservational study
Preoperative Gastric Ultrasound and Left Ventricular Function in Coronary Artery Bypass Surgery
Coronary Artery Disease, Left Ventricular Systolic Dysfunction
Active, not recruiting
The OCTOBER Trial - European Trial on Optical Coherence Tomography Optimized Bifurcation Event Reduction (OCTOBER)
Ischaemic Heart Disease, Ischemic Heart Disease
RecruitingEarly Phase 1
Thiamine Intervention and Coronary Artery Bypass Grafting
Coronary Heart Disease, Coronary Artery Bypass Grafting
Active, not recruitingObservational study
A Longitudinal Cohort Study to Evaluate Cardiovascular Risk Factors and Disease in Haiti
Hypertension, Diabetes
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Patricia Rodriguez-Lozano, MD principal investigator
University of Virginia Health System
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Dapagliflozin 10mg Tab in people with Myocardial Ischemia, run by University of Virginia at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 6 Nov 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline in Endocardial Myocardial Perfusion Reserve at Week 12 (time frame: Baseline to Week 12). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2026.