NCT06556667Recruiting
MAX - SHOCK Clinical Trial
Comparison of Maximum Energy Shocks From Two Defibrillator Vendors MAX - SHOCK- A Randomized Controlled Clinical Trial
Source: ClinicalTrials.gov · Last updated 3 Feb 2026
Brief summary (registry, in English)
Can Electrical Cardioversion (ECV) for AF be improved. It is the preferred method to restore sinus rhythm in patients with AF in whom a rhythm-control strategy is pursued. Hypothesis: ECV success rates will be greater with a biphasic defibrillator with maximum energy of 360J (® Physio-Control) compared to a biphasic defibrillator with maximum energy of 200J (® Zoll)
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 376 (estimated)
- First submitted
- 31 Jul 2024
- Start date
- 31 Mar 2025
- Primary completion date
- 1 Sept 2027
- Lead sponsor
- Ottawa Heart Institute Research Corporation
- Diseases
- Atrial fibrillation
- NCT number
- NCT06556667
What you commit to
- Study type: Interventional
- Planned participants: 376
- From 31 Mar 2025 to the primary completion date, 1 Sept 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other
- Known left-atrial appendage thrombus.
- Contraindication to appropriate anticoagulation.
- Patient is included in another randomized clinical trial.
- Patient does not meet all of the above listed inclusion criteria.
Who the study is looking for
- Patients age \> 18 years.
- Persistent atrial fibrillation.
- Scheduled for elective cardioversion at UOHI
- Patient is within the circle of care of UOHI Electrophysiology staff
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Ottawa Heart Institute Coordinator of this site? Confirm its status | Ottawa | Canada | Recruiting |
Related publications
This page is information, not medical advice. Discuss any trial with your doctor.