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临床试验/NCT07741890
NCT07741890尚未招募2 期

aDAPt-ANOCA: Dapagliflozin for the Treatment of Angina With Non-Obstructive Coronary Artery Disease (ANOCA)

The Christ Hospital0 个研究点目标入组 120 人开始时间: 2026年9月1日最近更新:
适应症
相关药物

试验速览

阶段
2 期
状态
尚未招募
入组人数
120
主要终点
Change in quantitative myocardial perfusion reserve index (MPRI)

研究概览

简要总结

The primary purpose of this study is to evaluate the efficacy of DAPA for the treatment of coronary microvascular dysfunction (CMD) among patients with angina and no obstructive coronary artery disease (ANOCA) and established CMD as compared to placebo.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Participant is older than 18 years of age
  • Participant is willing and able to sign informed consent
  • Participant is willing to comply with the specified follow-up evaluations
  • Anginal Symptoms (chest pain, pressure, dyspnea on exertion, or anginal equivalents
  • Stable CMD treatment (ie: Guideline Directed Medical Treatment) for >30 days prior to enrollment with no plans to change treatment during trial duration
  • Non-obstructive CAD: Patients with non-obstructive CAD (coronary narrowing of <50%, and/or FFR ≥0.80) assessed by Left Heart Cath or CCTA within the past 5 years
  • Diagnosis of CMD based on prior testing within 5 years:
  • Invasive Coronary Functional Testing derived Coronary Flow Reserve (CFR) < 2.5
  • Stress Cardiac MRI measure myocardial perfusion reserve index (MPRI) <2.5
  • Stress Positron Emission Tomography (PET) measured Myocardial Blood Flow <2.5

排除标准

  • Clinical Diagnosis Type 1 or 2 diabetes on medical treatment
  • Clinical Diagnosis of Heart failure with preserved ejection fraction (HFpEF)
  • Symptomatic Postural Orthostatic Tachycardia Syndrome (POTS)
  • History of coronary artery bypass graft (CABG)
  • Severe valvular heart disease (any valve)
  • BMI > 35 kg/m²
  • Cardiomyopathy based on infiltrative diseases (e.g. amyloidosis), accumulation diseases (e.g. haemochromatosis, Fabry disease), muscular dystrophies, cardiomyopathy with reversible causes (e.g. stress cardiomyopathy), hypertrophic obstructive cardiomyopathy or known pericardial constriction
  • Current treatment with any SGLT-2 inhibitor
  • Hypersensitivity to SGLT2i
  • Impaired renal function (eGFR less than 30 mL/min/1.73 m2)
  • Symptomatic hypotension
  • History of genital mycotic infections
  • History of chronic urinary tract infections (UTIs)
  • Pre-menopausal women (last menstruation ≤ 1 year prior to informed consent) who: - are nursing or pregnant or - are of child-bearing potential and are not practicing an acceptable method of birth control, or do not plan to continue using this method throughout the study and do not agree to submit to periodic pregnancy testing during participation in the trial. Acceptable methods of birth control include tubal ligation, transdermal patch, intra uterine devices/systems (IUDs/IUSs), oral, implantable or injectable contraceptives, sexual abstinence (if allowed by local Authorities), double barrier method and vasectomized partner.
  • Contraindications to CMRI such as ferromagnetic implants and materials, Cochlear implants, implanted neurostimulators, severe obesity, and certain cerebral aneurysm clips, severe claustrophobia.
  • Comorbidities limiting life expectancy to less than one year
  • Any clinical condition that might interfere with the trial protocol or the Participant's ability to be compliant with the trial protocol (e.g., active alcohol or drug abuse, dementia).
  • Currently enrolled in another investigational device or drug trial, or less than 30 days since ending another investigational device or drug trial(s) or receiving other investigational treatment(s). Patients participating in a purely observational trial will not be excluded
  • Any other condition which, in the opinion of the investigator, may preclude the participant from safe participation in the study or compromise data integrity

结局指标

主要结局

Change in quantitative myocardial perfusion reserve index (MPRI)

时间窗: 180 days

Change from baseline in the dapagliflozin group compared with the placebo group. A normal MPRI value is usually above 2.0. A value below 1.5 often points to reduced blood flow or poor heart function.

次要结局

  • Tissue Characterization by Cardiac MRI(180 days)
  • Cardiac Structure and Function by Cardiac MRI(180 days)
  • Cardiac Strain by Cardiac MRI(180 Days)
  • Epicardial Adipose Tissue (EAT) by Cardiac MRI(180 Days)
  • Oxygen-sensitive cardiac magnetic resonance (OS-CMR)-derived BMORE biomarkers(180 days)
  • Seattle Angina Questionnaire (SAQ)(Baseline, 90 days, 180 days and 30 days after stopping treatment)
  • 6 minute walk test(Baseline, 90 days, 180 days and post-drug assessment)
  • Change in Bloodwork and Biomarkers Endothelial Dysfunction and Inflammation(Baseline, 90 days, 180 days and 30 days after stopping treatment.)
  • Change in Extracellular Volume Fraction (ECV) by Cardiac MRI(180 days)
  • Cardiac Strain by Cardiac MRI(180 days)
  • Duke Activity Status Index (DASI)(Baseline, 90 days, 180 days and 30 days after stopping treatment)
  • International Physical Activity Questionnaire (IPAQ)(Baseline, 90 days, 180 days and 30 days after stopping treatment)
  • The University of California, San Diego Shortness of Breath Questionnaire (UCSD-SOB)(Baseline, 90 days, 180 days and 30 days after stopping treatment)
  • Short Form-36 Health Survey (SF-36)(Baseline, 90 days, 180 days and 30 days after stopping treatment)
  • Change in Late Gadolinium Enhancement (LGE) by Cardiac MRI(180 days)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Odayme Quesada

Principal Investigator

The Christ Hospital

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