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Could a nasal swab cure a racing heart? new study investigates

NCT ID NCT07617077

Symptom relief Sponsor: Marmara University Pendik Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares a simple nasal swab to the standard Valsalva maneuver for stopping a common rapid heartbeat condition called supraventricular tachycardia (SVT). About 60 adults with SVT in the emergency room will be randomly assigned to one of the two methods. The goal is to see which approach restores a normal heart rhythm faster and more comfortably.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Jun 2027

An estimate. End dates often move.

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 years and older

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 years or older * Electrocardiographically confirmed supraventricular tachycardia (SVT): narrow QRS complex (≤120 ms), regular rhythm, rapid ventricular rate, documented on 12-lead ECG or continuous cardiac monitoring * Hemodynamic stability, defined as ALL of the following simultaneously present: * Systolic blood pressure ≥90 mmHg * Diastolic blood pressure ≥60 mmHg * Alert and oriented mental status (GCS 15) * No signs of acute end-organ dysfunction * Ability and willingness to provide written informed consent Exclusion Criteria: * Age younger than 18 years * Pregnancy (known or suspected) * Inability to confirm SVT diagnosis by ECG criteria * Delta wave or pre-excitation pattern on ECG (Wolff-Parkinson-White syndrome or asymptomatic pre-excitation) - due to risk of ventricular fibrillation with vagal maneuvers * Wide QRS tachycardia (QRS ≥120 ms) where ventricular tachycardia cannot be excluded * Absolute contraindication to modified Valsalva maneuver (inability to assume supine position or passive leg elevation) * Contraindication to nasal swab (nasal surgery within 30 days, active epistaxis, visible nasal polyp or mass) * Hemodynamic instability requiring immediate synchronized cardioversion * Prior enrollment in this study (re-presentation with SVT) * Refusal to participate

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Conditions

The condition(s) this trial relates to.

Emergencies Tachycardia, Atrioventricular Nodal Reentry Tachycardia, Supraventricular ventricular tachycardia

As listed by the trial registrant

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

Atrioventricular nodal reentry tachycardia Paroxysmal supraventricular tachycardia Supraventricular tachycardia Vagal maneuver

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Marmara University Pendik Training and Research Hospital

    RECRUITING

    Istanbul, Pendik, 34899, Turkey (Türkiye)

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