Could giving heart drug earlier save more lives?
NCT ID NCT06680869
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether giving the heart medication amiodarone one cycle earlier than usual during cardiac arrest can improve survival. About 585 adults with a shockable heart rhythm will be enrolled. The goal is to see if this change in timing helps restore a normal heartbeat faster.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Amiodarone (a heart rhythm medication)
- What this could lead to
- If successful, this could lead to a faster, more effective treatment protocol for cardiac arrest, potentially improving survival and recovery.
- What could go wrong
- This is a pilot study, so results are preliminary. The earlier dosing may not improve outcomes and could carry risks like low blood pressure or allergic reactions.
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 585 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Jan 2028
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Emergency medical services (EMS)-treated non-traumatic out-of-hospital cardiac arrest * Initial rhythm on EMS rhythm assessment of ventricular fibrillation or ventricular tachycardia * Recurrence or persistence of ventricular fibrillation or ventricular tachycardia after one defibrillation attempt Exclusion Criteria: * Known allergy to amiodarone * EMS-assessed contraindication to amiodarone * Pre-existing "do-not-attempt-resuscitation" orders * Inter-facility transportations * Initial care by a non-participating EMS agency able to perform advanced life support interventions * Pediatric patient as determined by EMS * Prisoners * Pregnant patients
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Oregon Health & Sciences University
RECRUITINGPortland, Oregon, 97035, United States
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