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Clinical Trial NCT07363772 (HEROS 4) for Cardiopulmonary Resuscitation (CPR), Basic Life Support Training Course, Cardiac Arrest (CA) is recruiting. See the Trial Radar Card View and AI discovery tools for all the details. Or ask anything here.
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Evaluation of Mixed Reality Cardiopulmonary Resuscitation Training (HEROS 4) 120 At-Home Randomized

Recruiting
Clinical Trial NCT07363772 (HEROS 4) is an interventional study for Cardiopulmonary Resuscitation (CPR), Basic Life Support Training Course, Cardiac Arrest (CA) that is recruiting. It started on 1 February 2026 with plans to enroll 120 participants. Led by Seoul National University Hospital, it is expected to complete by 30 June 2027. The latest data from ClinicalTrials.gov was last updated on 2 February 2026.
Brief Summary
<Study Design> This study is a cluster-randomized, stratified, non-inferiority trial designed to evaluate the feasibility, efficacy, and educational effectiveness of HEROS 4.0, a mixed-reality (MR)-based cardiopulmonary resuscitation (CPR) training system, compared with conventional instructor-led CPR training.

<Objective & Hypothesis> The primary objective is to determine whether MR-based HEROS 4.0 CPR trainin...

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Official Title

Evaluation of Efficacy and Effectiveness of Mixed Reality Cardiopulmonary Resuscitation Training

Conditions
Cardiopulmonary Resuscitation (CPR)Basic Life Support Training CourseCardiac Arrest (CA)
Other Study IDs
  • HEROS 4
  • 2401-048-1500
NCT ID Number
NCT07363772
Start Date (Actual)
2026-02-01
Last Update Posted
2026-02-02
Completion Date (Estimated)
2027-06-30
Enrollment (Estimated)
120
Study Type
Interventional
PHASE
N/A
Status
Recruiting
Primary Purpose
Health Services Research
Design Allocation
Randomized
Interventional Model
Parallel
Masking
None (Open Label)
Arms / Interventions
Participant Group/ArmIntervention/Treatment
ExperimentalHEROS 4.0
Participants will receive a two-stage CPR training program consisting of pre-training and on-site MR-based training. As pre-training, participants will be instructed to watch a 40-minute instructional video (conventional CPR training group video) at home prior to their visit. After completing the pre-training, participants will undergo 20 minutes of MR-based CPR training using the HEROS 4.0 system in a dedicated CPR ...Show More
HEROS 4.0
Participants will receive a two-stage CPR training program consisting of pre-training and on-site MR-based training. As pre-training, participants will be instructed to watch a 40-minute instructional video (conventional CPR training group video) at home prior to their visit. After completing the pre-training, participants will undergo 20 minutes of MR-based CPR training using the HEROS 4.0 system in a dedicated CPR ...Show More
Active ComparatorConventional CPR training
Participants will receive 60 minutes of standard CPR education delivered through instructional videos and in-person instructor guidance, reflecting current community CPR training practice.
Conventional CPR training
Participants will receive 60 minutes of standard CPR education delivered through instructional videos and in-person instructor guidance, reflecting current community CPR training practice.
Primary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
Chest compression fraction
Chest compression fraction (CCF) is defined as the proportion of total resuscitation time during which chest compressions are actively delivered. Chest compression quality metrics including CCF will be measured during a standardized cardiac arrest simulation using a CPR quality-measurement manikin.
(1) Immediately after training and (2) at 6-month follow-up.
Secondary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
Mean chest compression depth
The average depth of all chest compressions delivered during the simulated resuscitation.
(1) Immediately after training and (2) at 6-month follow up.
Mean chest compression rate
The average number of chest compressions performed per minute during the CPR simulation.
(1) Immediately after training and (2) at 6-month follow up.
Proportion of compressions with adequate depth
The percentage of chest compressions that meet guideline-recommended depth (5-6 cm) criteria during the simulation.
(1) Immediately after training and (2) at 6-month follow up.
Proportion of compressions with adequate rate
The percentage of chest compressions that fall within the guideline-recommended (100-120 compressions per minute) compression rate range.
(1) Immediately after training and (2) at 6-month follow up.
Overall basic life support performance
Measurement of basic life support performance during standardized cardiac arrest simulation using the following checklist items including: Check response / Assess breathing / Call EMS and get help / Chest compressions / Activate AED and attach pads / Stand clear / Deliver shock / Minimize CPR interruptions /
(1) Immediately after training and (2) at 6-month follow up.
CPR self-efficacy
Participants' self-efficacy in performing CPR will be evaluated using a modified version of the Basic Resuscitation Skills Self-Efficacy Scale (BRS-SES), consisting of 15 items rated on a 11-point Likert scale (converted to 0-100 scale), with higher scores indicating greater self-efficacy.
(1) Before training, (2) immediately after training and (3) at 6-month follow-up.
System Usability Scale
The usability of the MR-based CPR Training program will be evaluated using the System Usability Scale (SUS), a validated 10-item questionnaire rated on a 5-point Likert scale, with higher scores indicating better usability. This assessment will be conducted only in the experimental group.
Immediately after training
Participation Assistant
Eligibility Criteria

Eligible Ages
Adult
Minimum Age
18 Years
Eligible Sexes
All
Accepts Healthy Volunteers
Yes
  • Adults aged 18-50 years who have not received CPR training within the previous 12 months.

  • Healthcare professionals
  • Individuals unable to safely tolerate MR equipment (e.g. motion sickness)
Seoul National University Hospital logoSeoul National University Hospital
Study Responsible Party
Ki Jeong Hong, Principal Investigator, Professor, Seoul National University Hospital
Study Central Contact
Contact: Dong Hyun Choi, MD, PhD, 82-2-2072-4646, [email protected]
1 Study Locations in 1 Countries

Nowon-gu

Nowon-gu Public Health Center, Seoul, Nowon-gu, 01689, South Korea
Dong Hyun Choi, MD, PhD, Contact, 82-2-2072-4646, [email protected]
Recruiting