Embrace: Seizure Characterization

August 20, 2020 updated by: Empatica, Inc.

Characterizing Sleep, Stress, and Seizures in Daily Life: An Internet-based Study With the Empatica Embrace Watch and Smartphone-based Diary-alert System

The study is intended to characterize sleep, stress, and seizures in daily life with the Empatica Embrace watch and smartphone-based diary-alert system. The primary study objective is to collect and validate biometric signals from epilepsy patients using the Empatica Embrace watch and compare them to ictal events captured from human (patient and caregiver) reports.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Enrolling by invitation

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Patients use the Embrace sensor with a smartphone app, "Alert". The sensor attempts to capture convulsive seizure events such as generalized tonic-clonic seizures (GTCS's), and to initiate an alert when such an event is captured. Patients can also enter seizures (captured or not, GTCS or not) into the "Mate" diary, and they can cancel or mark false alarms if Embrace triggered a false alarm.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
100000

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 years to 95 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participants must be between the ages of 1-99
  • Anyone (healthy or not) can participate
  • Adult participant must either be able to give consent or must have an acceptable surrogate capable of giving consent on their behalf.
  • Participants under age 18 must have an adult guardian give informed consent, and if capable, the patient must give informed assent.
  • Participants with GTCS must have a functioning smartphone (iOS or Android) that can be paired with the Embrace over a Bluetooth Low Energy connection and agree that it can be kept on or near their person.
  • Participants with GTCS (or their surrogate) must be able to identify one or more "designated frequent caregivers," who has a functioning phone, agrees to keep it regularly charged, agrees to receive alerts, and agrees to respond to alerts promptly to the best of their ability.
  • Participants must be fluent in the language of the consent forms (Currently limited to English but Spanish and other languages are planned).
  • Participants must reside in the United States.

Exclusion Criteria:

  • Participants must not have broken or injured skin at the wrist or leg location where Embrace is worn, and they must be able to tolerate wearing Embrace snugly for long periods of time. Thus, they should not have allergies to the material composition of the Embrace watch, or discomfort wearing a wristwatch or leg-band device.
  • Participants should not be homeless.
  • Participants should not have active dependence on substances that are not currently prescribed by their doctor (e.g. alcohol, pain medications, illegal drugs) or be taking substances that they are not willing to disclose as a study participant.
  • Participants must not be pregnant or planning to become pregnant within six months at the time of screening.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Embrace+Alert App
Participants are allowed to enter the trial (to use Embrace+Alert app) whether or not they have epilepsy. People without epilepsy may use Alert in this trial even though they are not expected to have seizures, as long as they are willing to mark false positives. Since many people with epilepsy live active lives and appear perfectly healthy outwardly, it is important that their active lifestyle data not trigger false alarms. Allowing healthy participants without epilepsy to contribute active lifestyle data helps us make the detection algorithm even stronger and better.
Device: Embrace + Alert App
Participants will wear an Embrace smartwatch to collect data, and will provide survey/diary information on the occurrence of seizures. The device sends data to the Alert app, which issues either true detections or false alarms when it detects a possible convulsive seizure. Participants are asked to either cancel (in real time) or mark (at a later time) all false alarms using the Alert app.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Sensitivity of the GTCS detection of the Embrace + Alert app
Time Frame: The primary outcome is assessed continuously over the trial period (each new seizure is counted and summed for each person; the average time period is 6 months)
The number of GTCS automatically detected by Embrace will be compared to the total recorded by the wearer+caregiver in a seizure diary. This fraction is the sensitivity.
The primary outcome is assessed continuously over the trial period (each new seizure is counted and summed for each person; the average time period is 6 months)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
False alarm rate of the GTCS detection of the Embrace + Alert app
Time Frame: The secondary outcome is assessed continuously over the trial period (each false alarm is counted and summed for a running total within each person; the average time period is 6 months)
The number of alerts elicited by Embrace+Alert app that do NOT correspond to convulsive seizures marked in the seizure diary are "false alarms". False alarms can also be explicitly marked by patients.
The secondary outcome is assessed continuously over the trial period (each false alarm is counted and summed for a running total within each person; the average time period is 6 months)

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
System Usability
Time Frame: After one month of use.
The System Usability Scale will be given to assess system usability
After one month of use.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Empatica, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2016

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2026

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 21, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 29, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 2, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 24, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 20, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2016-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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