ElectrocardiogramNCT04221958
Surface ECG Mapping
An observational study of Electrocardiogram, run by Stanford University at 1 site in United States.
Trial summary
This study aims to confirm a scientific concept that superficially placed electrocardiogram (ECG) leads may be compared to one another to help determine positioning. If proven to be effective, this could offer a more non-invasive means of positioning using superficial ECG tracings. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Electrocardiogram
- What is being tested?
- Electrocardiogram
- Type of treatment
- Medical device
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2025to Dec 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: The population of participants include healthy volunteers from the research/administrative/health care staff from the institution.
Who may be able to join
- Adult volunteers from institution's staff
- Age >18 years
Who cannot join
- Existing heart conditions
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Surface ECG Mapping in Healthy Adult Volunteers
This study aims to confirm a scientific concept that superficially placed electrocardiogram (ECG) leads may be compared to one another to help determine positioning. If proven to be effective, this could offer a more non-invasive means of positioning using superficial ECG tracings.
- Conditions
- Electrocardiogram
- Being tested
- Electrocardiogram
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ElectrocardiogramDevice
An electrocardiogram measures the electrical activity of the heartbeat. This "intervention" will be used on healthy adult volunteers whom are part of the staff at the institution.
| Study group | Role | What they receive |
|---|---|---|
| Electrocardiogram (ECG) Mapping | Participants will have 10 superficial electrode-patches placed on their chest in two vertical columns of 5 electrode-patches. The channels V1-V5 will be connected to one of the columns. The channel V6 will be connected to each of the electrode-patches in the second column ad recordings will be taken for approximately 2 minutes on each electrode-patch. ECG readings will be recorded. Receives: Device: Electrocardiogram |
What is being measured
The primary outcome is the main question the study is designed to answer.
ECG Tracing
ECG tracing for each electrode will be recorded in voltage per unit of time.
Measured: Approximately 30 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jan 2020
- Study startJan 2025 (estimated)
- Primary completionDec 2025 (estimated)
- Study completionDec 2025 (estimated)
Why it stopped: Unable to start the study due to changes in personnel.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ElectrocardiogramStudies of the same condition, open and under way.
- More trials run by Stanford UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Stanford University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Chi-Ho Ban Tsui, Stanford University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04221958
- Sponsor's protocol ID
- 54619
- Status last verified
- Apr 2025
- First submitted
- 6 Jan 2020
- Last updated
- 4 May 2025
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 4 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Surface ECG Mapping in Healthy Adult Volunteers
- ClinicalTrials.gov ID
- NCT04221958
- Acronym / sponsor ID
- 54619
- Conditions
- Electrocardiogram
- Study type
- Observational
- Recruitment status
- WithdrawnReason stopped: Unable to start the study due to changes in personnel.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Stanford UniversityUniversity, hospital or other
- Study start
- Jan 2025 (estimated)
- Primary completion
- Dec 2025 (estimated)
- Study completion
- Dec 2025 (estimated)
- First posted
- 9 Jan 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to confirm a scientific concept that superficially placed electrocardiogram (ECG) leads may be compared to one another to help determine positioning. If proven to be effective, this could offer a more non-invasive means of positioning using superficial ECG tracings.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Electrocardiogram (ECG) Mapping | – | Device: ElectrocardiogramParticipants will have 10 superficial electrode-patches placed on their chest in two vertical columns of 5 electrode-patches. The channels V1-V5 will be connected to one of the columns. The channel V6 will be connected to each of the electrode-patches in the second column ad recordings will be taken for approximately 2 minutes on each electrode-patch. ECG readings will be recorded. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The population of participants include healthy volunteers from the research/administrative/health care staff from the institution.
Key inclusion criteria (2 listed)
- Adult volunteers from institution's staff
- Age >18 years
Key exclusion criteria (1 listed)
- Existing heart conditions
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ElectrocardiogramAn electrocardiogram measures the electrical activity of the heartbeat. This "intervention" will be used on healthy adult volunteers whom are part of the staff at the institution. | Device | Electrocardiogram (ECG) Mapping |
Primary outcome
ECG Tracing
Time frame: Approximately 30 minutes
ECG tracing for each electrode will be recorded in voltage per unit of time.
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 May 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Electrocardiogram, run by Stanford University at 1 site in United States.
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 2 inclusion and 1 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: withdrawn, as of the sponsor's last update on 4 May 2025. 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 United States. 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?
The study was withdrawn before enrolling participants, so there are no results.
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?
ECG Tracing (time frame: Approximately 30 minutes). 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 4 May 2025.