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Simple syringe switch may fix racing heart faster

NCT ID NCT07554170

Symptom relief Sponsor: Hormozgan University of Medical Sciences Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two methods of giving the drug adenosine to people with a rapid heart rhythm called supraventricular tachycardia (SVT). 131 adults in the emergency room received the drug either through one syringe or two syringes. The goal was to see which method restored a normal heartbeat more effectively after the first dose.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

131 people

The number who actually took part.

Started

May 2024

Finished

Dec 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18 to 80 years * Presentation to the emergency department with narrow-QRS tachyarrhythmia * Heart rate ≥150 beats/min * No visible P wave or presence of retrograde P wave on ECG * Not responsive to Valsalva maneuvers lasting 15 to 30 seconds * Requiring adenosine administration Exclusion Criteria: * Wide-QRS tachycardia or irregular R-R interval on ECG * Known allergy or contraindication to adenosine * Recent ingestion of dipyridamole, carbamazepine, or theophylline * Caffeine ingestion within the previous 2 hours

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Conditions

The condition(s) this trial relates to.

Arrhythmias, Cardiac cardiovascular disorder Tachycardia, Supraventricular

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PSVT Supraventricular arrhythmia Supraventricular tachycardia Supraventricular tachycardias SVT

Contacts and locations

Locations

  • Shahid Mohammadi Hospital

    Bandar Abbas, Hormozgan, Iran

  • Shahid Mohammadi Hospital

    Bandar Abbas, Iran

More trials for these conditions

Other studies related to the condition(s) this trial covers.