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EpilepsySeizeIT2NCT04284072

Clinical Scenarios for Long-term Monitoring of Epileptic Seizures With a Wearable Biopotential Technology

A study testing Sensor Dot in people with Epilepsy, run by Universitaire Ziekenhuizen KU Leuven at 7 sites in 5 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Clinically validate a biopotential and motion recording wearable device (Byteflies Sensor Dot) for detection of epileptic seizures in the epilepsy monitoring unit (EMU) and at home. Read more about this study

Who is it for?
Ages 4 years and older
Conditions the study is for
Epilepsy
What is being tested?
Sensor Dot
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
496 participants
Where
7 sitesin 5 countries
Study dates
22 Jun 2020to 30 Jun 2022
Phase
Interventional
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 4 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Subjects (4+ years old) with refractory epilepsy who are admitted to the hospital for clinically-indicated long-term video-EEG assessment or presurgical evaluation, and a high likelihood of experiencing seizures during the EMU Phase
  • For subjects continuing into the Home Phase: successful recording of their habitual seizures with Sensor Dot during the EMU Phase
  • For subjects continuing into the Home Phase: the ability to keep an e-diary

Who cannot join

  • Known allergies to any of the biopotential electrodes or adhesives used as part of the study protocol
  • Having an implanted device, such as (but not limited to) a pacemaker, cardioverter defibrillator (ICD), and/or neural stimulation device because Sensor Dot contains magnets that could interfere with the operation of these devices
  • Women who are pregnant

Trial locations and contacts

7 sites in 5 countries.

7 sites in 5 countries

Germany2 sites
  • Department of Epileptology and Neurology

    Aachen

  • Epilepsy Center, University Medical Center, Freiburg University

    Freiburg im Breisgau

Other trials in Germany

United Kingdom2 sites
  • Division of Neuroscience, King's College London

    London

  • Nuffield Department of Clinical Neurosciences, Oxford University Hospital

    Oxford

Other trials in United Kingdom

Belgium1 site
  • University Hospitals Leuven, department of Neurology

    Leuven, 3000

Other trials in Belgium

Portugal1 site
  • Division of Neurology, Coimbra University Hospital

    Coimbra

Other trials in Portugal

Sweden1 site
  • Department of Clinical Neuroscience, Karolinska Institute

    Stockholm

Other trials in Sweden

About this study

Official title: A Multicenter Study to Examine Clinical Scenarios for Long-term Monitoring of Epileptic Seizures With a Wearable Biopotential Technology

Clinically validate a biopotential and motion recording wearable device (Byteflies Sensor Dot) for detection of epileptic seizures in the epilepsy monitoring unit (EMU) and at home.

Read the detailed description

Subjects with refractory epilepsy who are admitted to the Epilepsy Monitoring Unit (EMU) for clinically-indicated long-term video-EEG assessment will be simultaneously monitored with Sensor Dots to record electroencephalographic (EEG), electrocardiographic (ECG), electromyographic (EMG), and motion signals.

A subset of subjects will continue using Sensor Dot devices at home (Home Phase) after completing the EMU Phase.

The data recorded by Sensor Dots will be used to: 1) annotate epileptic seizures, which will be compared to the annotations made as part of routine EMU monitoring and seizure diaries kept at home, and 2) to develop seizure detection algorithms. The data collected as part of this study will not be used to influence clinical decision making.

Conditions
Epilepsy
Being tested
Sensor Dot
Keywords
Seizure detection, Wearable, Epilepsy, Seizure, Sensor Dot
Medical subject headings
Epilepsy, Seizures

What participants receive

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

  • Sensor DotDevice

    Multimodal (EEG, ECG, EMG and motion) seizure monitoring with Sensor Dot to complement EMU-based video-EEG monitoring (EMU Phase), and optional home-based seizure diary logging (Home Phase).

Study groups in NCT04284072
Study groupRoleWhat they receive
All subjectsExperimentalSingle arm study with a device intervention for epileptic seizure monitoring in subjects with refractory focal impaired awareness, tonic-clonic, and/or typical absence seizures.
Receives: Device: Sensor Dot

What is being measured

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

  1. Comparison of typical absence seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during wakefulness

    F1-score as determined by expert reviewers

    Measured: up to two weeks

  2. Comparison of typical absence seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during sleep

    F1-score as determined by expert reviewers

    Measured: up to two weeks

  3. Comparison of focal impaired awareness seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during wakefulness

    F1-score as determined by expert reviewers

    Measured: up to two weeks

  4. Comparison of focal impaired awareness seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during sleep

    F1-score as determined by expert reviewers

    Measured: up to two weeks

  5. Comparison of tonic-clonic seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during wakefulness

    F1-score as determined by expert reviewers

    Measured: up to two weeks

  6. Comparison of tonic-clonic seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during sleep

    F1-score as determined by expert reviewers

    Measured: up to two weeks

Secondary outcomes (6)
  1. Sensor Dot usability

    We will assess the usability of the device as perceived by users (patients and healthcare personnel) via surveys

    Measured: up to two weeks

  2. To assess seizure duration

    From the Sensor Dot data, we will be able to assess seizure duration

    Measured: up to two weeks

  3. To assess the usability of the seizure e-diary

    We will asses usability of the electronic seizure diary

    Measured: up to two weeks

  4. To evaluate the accuracy of automated seizure detection algorithms

    We will use the collected data and seizure annotations to develop algorithms to automatically detect epileptic seizures. We plan to evaluate how accurate these new automated seizure detection algorithms are.

    Measured: 2 years

  5. Comparison of seizure annotations derived from Sensor Dot data collected during the Home Phase against seizure diary annotations

    Accuracy as determined by expert reviewers

    Measured: up to 2 weeks

  6. Sensor Dot Performance

    We will assess the technical performance of the device by comparing the actual length of recorded data against the expected recording length, and what percentage of the data is high quality enough to make seizure annotations.

    Measured: up to 2 weeks

Timeline

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

  1. First posted25 Feb 2020
  2. Study start22 Jun 2020
  3. Primary completion30 Jun 2022
  4. Study completion30 Jun 2022

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
Diagnosis
Allocation
Not applicable
Intervention model
Sequential
Masking
None (open label)
Enrolment
496 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04284072
Sponsor's protocol ID
S63631
Acronym
SeizeIT2
Status last verified
May 2022
First submitted
17 Feb 2020
Last updated
8 Nov 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: We plan to share the individual biosignals (EEG, EMG, ECG and movement) and 24-channel seizure-annotated EEG data, de-identified demographic and epilepsy-related data two years after the finish of the study (1-1-2024) upon request to researchers who provide a methodologically sound proposal.

Publications

  • Fisher RS, Acevedo C, Arzimanoglou A, Bogacz A, Cross JH, Elger CE, Engel J Jr, Forsgren L, French JA, Glynn M, Hesdorffer DC, Lee BI, Mathern GW, Moshe SL, Perucca E, Scheffer IE, Tomson T, Watanabe M, Wiebe S. ILAE official report: a practical clinical definition of epilepsy. Epilepsia. 2014 Apr;55(4):475-82. doi: 10.1111/epi.12550. Epub 2014 Apr 14.

    PubMed 24730690
  • Sander JW. The epidemiology of epilepsy revisited. Curr Opin Neurol. 2003 Apr;16(2):165-70. doi: 10.1097/01.wco.0000063766.15877.8e.

    PubMed 12644744
  • Kwan P, Brodie MJ. Early identification of refractory epilepsy. N Engl J Med. 2000 Feb 3;342(5):314-9. doi: 10.1056/NEJM200002033420503.

    PubMed 10660394
  • Elger CE, Hoppe C. Diagnostic challenges in epilepsy: seizure under-reporting and seizure detection. Lancet Neurol. 2018 Mar;17(3):279-288. doi: 10.1016/S1474-4422(18)30038-3.

    PubMed 29452687
  • Hoppe C, Poepel A, Elger CE. Epilepsy: accuracy of patient seizure counts. Arch Neurol. 2007 Nov;64(11):1595-9. doi: 10.1001/archneur.64.11.1595.

    PubMed 17998441
  • Kurada AV, Srinivasan T, Hammond S, Ulate-Campos A, Bidwell J. Seizure detection devices for use in antiseizure medication clinical trials: A systematic review. Seizure. 2019 Mar;66:61-69. doi: 10.1016/j.seizure.2019.02.007. Epub 2019 Feb 13.

    PubMed 30802844
  • Bidwell J, Khuwatsamrit T, Askew B, Ehrenberg JA, Helmers S. Seizure reporting technologies for epilepsy treatment: A review of clinical information needs and supporting technologies. Seizure. 2015 Nov;32:109-17. doi: 10.1016/j.seizure.2015.09.006. Epub 2015 Sep 18.

    PubMed 26552573
  • Beniczky S, Ryvlin P. Standards for testing and clinical validation of seizure detection devices. Epilepsia. 2018 Jun;59 Suppl 1:9-13. doi: 10.1111/epi.14049.

    PubMed 29873827
  • Szabo CA, Morgan LC, Karkar KM, Leary LD, Lie OV, Girouard M, Cavazos JE. Electromyography-based seizure detector: Preliminary results comparing a generalized tonic-clonic seizure detection algorithm to video-EEG recordings. Epilepsia. 2015 Sep;56(9):1432-7. doi: 10.1111/epi.13083. Epub 2015 Jul 20.

    PubMed 26190150
  • Beniczky S, Conradsen I, Wolf P. Detection of convulsive seizures using surface electromyography. Epilepsia. 2018 Jun;59 Suppl 1:23-29. doi: 10.1111/epi.14048.

    PubMed 29873829
  • Beniczky S, Polster T, Kjaer TW, Hjalgrim H. Detection of generalized tonic-clonic seizures by a wireless wrist accelerometer: a prospective, multicenter study. Epilepsia. 2013 Apr;54(4):e58-61. doi: 10.1111/epi.12120. Epub 2013 Feb 8.

    PubMed 23398578
  • Kjaer TW, Sorensen HBD, Groenborg S, Pedersen CR, Duun-Henriksen J. Detection of Paroxysms in Long-Term, Single-Channel EEG-Monitoring of Patients with Typical Absence Seizures. IEEE J Transl Eng Health Med. 2017 Jan 9;5:2000108. doi: 10.1109/JTEHM.2017.2649491. eCollection 2017.

    PubMed 29018634
  • Zibrandtsen IC, Kidmose P, Christensen CB, Kjaer TW. Ear-EEG detects ictal and interictal abnormalities in focal and generalized epilepsy - A comparison with scalp EEG monitoring. Clin Neurophysiol. 2017 Dec;128(12):2454-2461. doi: 10.1016/j.clinph.2017.09.115. Epub 2017 Oct 12.

    PubMed 29096220
  • Gu Y, Cleeren E, Dan J, Claes K, Van Paesschen W, Van Huffel S, Hunyadi B. Comparison between Scalp EEG and Behind-the-Ear EEG for Development of a Wearable Seizure Detection System for Patients with Focal Epilepsy. Sensors (Basel). 2017 Dec 23;18(1):29. doi: 10.3390/s18010029.

    PubMed 29295522
  • Dan J, Weckhuysen D, Cleeren E, Van Paesschen W, Vandendriessche B. Technical validation of Sensor Dot: a wearable for ambulatory monitoring of epileptic seizures. 2nd International Congress on mobile devices and seizure detection in epilepsy; Lausanne, Switzerland, 2019.

Questions about this trial

What is this clinical trial studying?

A study testing Sensor Dot in people with Epilepsy, run by Universitaire Ziekenhuizen KU Leuven at 7 sites in 5 countries.

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 3 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: finished, as of the sponsor's last update on 8 Nov 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Germany, United Kingdom, Belgium, Portugal, Sweden. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Comparison of typical absence seizure annotations derived from Sensor Dot data collected during the EMU Phase against annotations derived from video-EEG equipment during wakefulness (time frame: up to two weeks). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04284072, which also lists 19 linked publications.

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 8 Nov 2022.

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