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NCT00001628 · ClinicalTrials.gov registry record · Phase 3

The Role of Angiotensin Type I Receptor in the Regulation of Human Peripheral Vascular Function

A Phase 3 study, sponsored by National Heart, Lung, and Blood Institute (NHLBI).

Completed
Registry status
Phase 3
Development phase
36
Enrollment target

NCT00001628: Completed Phase 3 study, sponsored by National Heart, Lung, and Blood Institute (NHLBI).

NCT00001628 is a Phase 3 study that has completed, run by National Heart, Lung, and Blood Institute (NHLBI). The registered enrollment target is 36 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (95% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00001628, a Phase 3 study, has completed, sponsored by National Heart, Lung, and Blood Institute (NHLBI).

COMPLETED
Registry status
Phase 3
Development phase
36 participants
Enrollment target

Study 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 from ongoing studies in the Cardiology Branch (Protocol 95-H-0099) designed to investigate the link between ACEI and the vascular endothelium indicate that ACEI improve peripheral endothelial function, an effect that is partially mediated by bradykinin. The current protocol is designed to investigate whether the beneficial effects of ACEI on peripheral endothelial function are also due to inhibition of angiotensin II. The recent development of selective angiotensin II type 1 (AT1) receptor antagonists allows us to specifically examine the effects of angiotensin II on vasomotor activity.

Interventions

  • DRUG Angiotensin II type 1 receptor antagonists

Trial Details

FieldValue
Enrollment Target 36 participants
Start Date 1997-07
Est. Completion 2000-09
Phase Phase 3

What the finished NCT00001628 record still lists

NCT00001628 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 36 participants, a relatively small participant target, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (95% lower).

The record links to 0 conditions, and to 1 intervention - of which Angiotensin II type 1 receptor antagonists is the first listed.

NCT00001628 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00001628 about?

NCT00001628 is a clinical study titled "The Role of Angiotensin Type I Receptor in the Regulation of Human Peripheral Vascular Function". 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 clinic...

What is the current status of trial NCT00001628?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 36 participants. The study started on 1997-07. Estimated completion is 2000-09.

What interventions are being tested in trial NCT00001628?

The interventions under investigation include: Angiotensin II type 1 receptor antagonists (DRUG).

Who is sponsoring clinical trial NCT00001628?

This trial is sponsored by National Heart, Lung, and Blood Institute (NHLBI), which has 501 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00001628's enrollment target sits among peer trials

36 1901st of 2000 higher than 98 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00001628, the US trial registry maintained by the National Library of Medicine. NCT00001628 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.