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Improving Right Ventricular Function in Young Adults Born Preterm: A Pilot Study

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合作者:
信息的提供 (责任方):
October 3, 2018
October 5, 2018
October 5, 2018
November 2018
September 2020   (主要结果测量的最终数据收集日期)
Right ventricular energetic efficiency[ Time Frame: Visits 2 and 3 (2 days) ]
mL/mJ

与当前相同
  • left ventricular energetic efficiency[ Time Frame: Visits 2 and 3 (2 days) ]
    mL/mJ
 
Improving Right Ventricular Function in Young Adults Born Preterm: A Pilot Study
Improving Right Ventricular Function in Young Adults Born Preterm: A Pilot Study

The purpose of this research is to evaluate the short-term effects of sildenafil and metoprolol on heart function in young adults born premature.

The purpose of this study is to evaluate the short-term therapeutic effects of sildenafil and metoprolol on right ventricular function in young adults born premature using novel 4-Dimensional flow Cardiac Magnetic Resonance Imaging.
Interventional
Phase 2
分配:
干预模型: Single Group Assignment
干预模型描述: Young adults born premature, recruited either from the National Lung Project Cohort or the general public, will undergo Cardiac Magnetic Resonance Imaging before and after medication administration. This will occur twice, on two separate visits. Subjects will be given sildenafil in between imaging scans at one visit, and will receive intravenous metoprolol in between scans at a separate visit. These visits can occur in either order.
盲法: Interventional
盲法描述:
主要目的: Treatment
  • Procedure: Pulmonary Function Testing
    Subjects will undergo spirometry, Plethsymography, and diffusion capacity.
  • Procedure: Electrocardiogram
    Subjects will undergo an electrocardiogram to ensure sinus rhythm
  • Procedure: Cardiac Magnetic Resonance Imaging
    Subjects will undergo positron magnetic resonance imaging to detect images of the heart
  • Drug: Metoprolol
    Subjects will receive intravenous metoprolol
  • Drug: Sildenafil
    Subjects will receive a 50 milligram tablet of sildenafil (to be taken orally)
  • Experimental: Young adults born premature
    Young adults born premature, recruited either from the National Lung Project Cohort or the general public, will undergo Cardiac Magnetic Resonance Imaging before and after medication administration. This will occur twice, on two separate visits. Subjects will be given sildenafil in between imaging scans at one visit, and will receive intravenous metoprolol in between scans at a separate visit. These visits can occur in either order. Subjects will also undergo pulmonary function testing and electrocardiogram.
 
Not yet recruiting
10
与当前相同
September 2020
September 2020   (主要结果测量的最终数据收集日期)
Inclusion Criteria: 1. Provision of signed and dated informed consent form 2. Male or female aged 18-35 3. History of preterm birth (either a or b): 1. Participant in the Newborn Lung Project (birth year 1988-1991, birth weight <1500 g) 2. Non-NLP participant, with birth weight <1500 g and gestational age 32 weeks or less, verified by medical records Exclusion Criteria: 1. Pregnant or lactating 2. Use of prescribed medications that would interfere with study medications 1. Sildenafil: Use of phosphodiesterase type 5 inhibitors (sildenafil, tadalafil, vardenafil), nitrates, soluble guanylate cyclase inhibitor (riociguat) within 48 hours of study visit 2. Metoprolol: Use of nodal blocking agents including beta blockers, non-dihydropyridine calcium channel blockers (i.e. diltiazem), and anti-arrhythmics (i.e. amiodarone) 3. Presence of known comorbidities for which these therapeutic interventions would be contraindicated: 1. Moderate to severe heart failure 2. Severe bradycardia (heart rate <45), or second or third-degree heart block 3. Systolic blood pressure <90 mmHg or >190 mmHg 4. Angina 5. Severe peripheral arterial circulatory disorders 6. History of severe bronchospasm 4. Presence of any implanted device incompatible with CMR imaging 5. Known allergic or hypersensitivity reaction to components of the study medications 6. Any other reason for which the investigator deems a subject unsafe or inappropriate for study participation.
参与研究的性别: All
最小年龄:18 Years ,最大年龄:35 Years  
没有
United States
 
No
研究美国FDA监管的药品: Yes
研究涉及美国FDA监管的设备产品: No
计划分享 IPD: No
University of Wisconsin, Madison
Principal Investigator: Kara N Goss, MD University of Wisconsin-Madison School of Medicine and Public Health
October 2018

ICMJE     国际医学期刊编辑委员会和 世界卫生组织 ICTRP 要求的元素
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