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Ambient AI SystemCLOVA ChartyNCT07637591

Evaluation of a Generative AI-Based Voice Documentation System for Patient-Clinician Communication in the Emergency Department and Its Impact on Clinical Workflow Efficiency and Usability

A study testing VoiceEMR in people with Ambient AI System and Emergency Department, run by Samsung Medical Center at 1 site in South Korea.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This research study at Samsung Medical Center evaluates the impact of Ambient AI system, a Generative AI-based communication and documentation system developed by NAVER, on the efficiency and quality of medical record-keeping within the Emergency Department (ED). Read more about this study

Who is it for?
Ages 20 years and olderHealthy volunteers can take part
What is being tested?
VoiceEMR
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteSouth Korea
Study dates
7 Apr 2025to 15 Aug 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthcare providers who have performed triage and initial examinations in the emergency department for at least 6 months
  • Individuals who act as the primary subjects of communication during the triage and initial examination process
  • Individuals who have voluntarily signed the informed consent form after receiving a detailed explanation of the research study

Who cannot join

  • Individuals who do not agree to participate in the research
  • Individuals who do not participate in the communication during the triage or initial examination process

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Samsung medical center

    Seoul, Gangnam-gu, 06351

Other trials in South Korea

About this study

Official title: Evaluation of a Generative AI-Based Communication and Clinical Documentation System and Its Impact on Workflow Efficiency in the Emergency Department

This research study at Samsung Medical Center evaluates the impact of Ambient AI system, a Generative AI-based communication and documentation system developed by NAVER, on the efficiency and quality of medical record-keeping within the Emergency Department (ED). By converting patient-clinician dialogues into automated medical summaries, the study aims to reduce the administrative burden on healthcare providers and address the issue of physician burnout caused by excessive documentation. The trial involves approximately 1,148 patients and 20 medical staff members, comparing a control period of conventional documentation against an experimental phase where AI-generated drafts are utilized to assist in clinical recording. Through quantitative analysis of documentation time, patient length of stay, and speech-to-text accuracy, alongside qualitative assessments of usability and satisfaction, the research seeks to determine if this AI intervention can effectively streamline ED workflows and enhance the overall quality of patient care in overcrowded medical environments.

Being tested
VoiceEMR
Medical subject headings
Emergencies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VoiceEMRDevice

    Also called KMed Charty

    A tool that uses AI and Speech-to-Text (STT) technology to convert voice recordings of medical consultations into structured medical summaries.

Study groups in NCT07637591
Study groupRoleWhat they receive
user groupExperimentalThis arm is specifically composed of medical staff (doctors or nurses) who have at least 6 months of experience in emergency department triage and initial examinations.
Receives: Device: VoiceEMR

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the time difference (in minutes)

    the time difference (in minutes) from the end of consultation to the completion of the initial medical record

    Measured: during 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Jun 2026
  2. Study start7 Apr 2025
  3. Primary completion4 Jul 2025
  4. Study completion15 Aug 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Sequential
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07637591
Sponsor's protocol ID
2024-07-021
Acronym
CLOVA Charty
Status last verified
Jun 2026
First submitted
3 Jun 2026
Last updated
10 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing VoiceEMR in people with Ambient AI System and Emergency Department, run by Samsung Medical Center at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 10 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the time difference (in minutes) (time frame: during 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jun 2026.

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