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NCT01914926 · ClinicalTrials.gov registry record · Phase 4

Comparison of Diltiazem and Metoprolol in the Management of Acute Atrial Fibrillation or Atrial Flutter

A Phase 4 study, sponsored by Antonios Likourezos.

Completed
Registry status
Phase 4
Development phase
54
Enrollment target

NCT01914926: Completed Phase 4 study, sponsored by Antonios Likourezos.

NCT01914926 is a Phase 4 study that has completed, run by Antonios Likourezos. The registered enrollment target is 54 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (90% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01914926, a Phase 4 study, has completed, sponsored by Antonios Likourezos.

COMPLETED
Registry status
Phase 4
Development phase
54 participants
Enrollment target

Study Summary

Acute atrial fibrillation is the most common sustained, clinically significant dysrhythmia encountered in the emergency department (ED) and the most common dysrhythmia treated by emergency physicians. Atrial flutter is less common than atrial fibrillation but its management in the ED is very similar, and the majority of patients with atrial flutter also have atrial fibrillation. Symptomatic relief and ventricular rate control are generally the primary therapeutic objectives in the ED management of acute atrial fibrillation and flutter (AFF). The need for swift, appropriate action by the emergency physician is highlighted by the fact that up to 18% of patients with AFF develop potentially life-threatening complications such as congestive heart failure, hypotension, ventricular ectopy, respiratory failure, angina and myocardial infarction. Both beta-blocking agents and calcium channel blockers are commonly used to treat AFF in the ED. Metoprolol is the most commonly used beta-blocker; and diltiazem is the most frequently used calcium channel antagonist.\[8\] Diltiazem was released by the FDA for treatment of AFF in 1992. Shreck et al. were the first to demonstrate both the efficacy of diltiazem in the ED management of AFF with rapid rate and its clear superiority over the previously most commonly used pharmacologic agent, digoxin. To date, only one prospective, randomized trial has compared the effectiveness of a calcium channel blocker (diltiazem) with a beta-blocker (metoprolol) for rate control of AFF in the ED. Despite the relatively small sample size (n=20 in each group) the authors concluded that both pharmacologic agents were similarly effective. In order to test this finding, the investigators conducted a prospective comparison of metoprolol and diltiazem for the management of patients presenting to the ED with AFF with rapid ventricular rate.

Primary Outcome

Percent of patient who reached a HR\<100bpm within 30 minutes from baseline.

Interventions

  • DRUG Diltiazem
  • DRUG Metoprolol

Trial Details

FieldValue
Enrollment Target 54 participants
Start Date 2009-06
Est. Completion 2010-11
Phase Phase 4
Antonios Likourezos

33 total trials

What the finished NCT01914926 record still lists

NCT01914926 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 54 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (90% lower).

The record links to 0 conditions, and to 2 interventions - of which Diltiazem is the first listed.

NCT01914926 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01914926 about?

NCT01914926 is a clinical study titled "Comparison of Diltiazem and Metoprolol in the Management of Acute Atrial Fibrillation or Atrial Flutter". Acute atrial fibrillation is the most common sustained, clinically significant dysrhythmia encountered in the emergency department (ED) and the most common dysrhythmia treated by emergency physicians. Atrial flutter is less common than atrial fibrillation but its management in the ED is very similar...

What is the current status of trial NCT01914926?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 54 participants. The study started on 2009-06. Estimated completion is 2010-11.

What interventions are being tested in trial NCT01914926?

The interventions under investigation include: Diltiazem (DRUG), Metoprolol (DRUG).

Who is sponsoring clinical trial NCT01914926?

This trial is sponsored by Antonios Likourezos, which has 33 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01914926's enrollment target sits among peer trials

54 1223rd of 2000 higher than 772 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 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 NCT01914926, the US trial registry maintained by the National Library of Medicine. NCT01914926 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.