The Role of Angiotensin Type I Receptor in the Regulation of Human Peripheral Vascular Function
Launched by NATIONAL HEART, LUNG, AND BLOOD INSTITUTE (NHLBI) · Dec 9, 2002
Trial Information
Current as of May 09, 2025
Completed
Keywords
ClinConnect Summary
The renin angiotensin system (RAS) plays an important physiological and pathophysiological role in the control of blood pressure and plasma volume. Inhibition of the RAS is useful in the treatment of hypertension, cardiac failure and in some patients with myocardial infarction. Several recent clinical trials with angiotensin converting enzyme inhibitors (ACEI) have shown that they also reduce the incidence of myocardial infarction, but the mechanisms underlying this anti-ischemic effect are poorly understood. ACEI reduce angiotensin II synthesis and prevent bradykinin degradation. Results f...
Gender
ALL
Eligibility criteria
- • Patients over 18 years with endothelial dysfunction requiring diagnostic cardiac catheterization.
- • Normal volunteers or patients undergoing catheterization who have normal coronary arteries without risk factors for atherosclerosis will be used as controls.
- • No unstable angina.
- • No significant left main disease (greater than 50% stenosis).
- • No recent myocardial infarction (less than 1 month).
- • No pregnancy, lactation.
- • No allergy to losartan.
- • No renal failure (creatinine greater than 2.5 mg/dl).
- • Ability to withdraw ACE inhibitors.
About National Heart, Lung, And Blood Institute (Nhlbi)
The National Heart, Lung, and Blood Institute (NHLBI) is a leading component of the National Institutes of Health (NIH), dedicated to advancing research and clinical trials focused on cardiovascular, pulmonary, and hematologic diseases. With a mission to improve public health through innovative research, the NHLBI supports a wide range of studies aimed at understanding, preventing, and treating heart and lung conditions. By collaborating with academic institutions, healthcare providers, and patient communities, the NHLBI strives to translate scientific discoveries into effective clinical practices, ultimately enhancing the quality of life for individuals affected by these critical health issues.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Bethesda, Maryland, United States
Patients applied
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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