NCT04716673

Brief Summary

Sleep slow waves (SSW) and the pathophysiological mechanisms of spike generation in patients with epilepsy are tightly linked. SSW are cortically generated oscillations (\~1 Hz) alternating between a hyperpolarized down-state (neuronal silence) and a depolarized up-state (neuronal firing). It has been shown experimentally that with increasing synchrony of slow neuronal oscillations, spike wave occurrence is facilitated. Auditory stimulation applied in correspondence to the SSW "up-phase" may increase the amplitude of the following SSW. Contrarywise, tones applied at the SSW "down-phase" may have a disruptive effect on SSW. Participants: Patients with epilepsy with epileptic discharges in their sleep EEG, as well as healthy controls Objective: Characterizing the effects of down-phase-targeted auditory stimulation on behavior and sleep EEG characteristics and determine whether the changes in sleep EEG characteristics are associated with the changes in behavior and wake EEG characteristics.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 29, 2020

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

December 14, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 20, 2021

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2022

Completed
3.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

January 20, 2021

Status Verified

January 1, 2021

Enrollment Period

2.2 years

First QC Date

December 14, 2020

Last Update Submit

January 18, 2021

Conditions

Keywords

epilepsysleepclosed-loop auditory stimulationepileptic dischargesspikes

Outcome Measures

Primary Outcomes (2)

  • CLAS on EEG characteristics & behavior

    CLAS changes sleep EEG characteristics (slow-wave and spindle activity) and the measured behavior (e.g. cognitive, memory and motor performance).

    Up to 4 years

  • EEG characteristics on behavior & wake EEG characteristics

    The changes in sleep EEG characteristics (slow-wave and spindle activity) correlate with the changes in measured behavior (attention \[TAP battery\], reaction time \[TAP battery\], and declarative \[word-pair memory task\] \& spatial memory \[object-location task\]) and wake EEG characteristics (frequencies up to 40 Hz).

    Up to 4 years

Secondary Outcomes (6)

  • Performance in attention in epilepsy patients

    Up to 4 years

  • Performance in reaction times in epilepsy patients

    Up to 4 years

  • Performance in spatial memory in epilepsy patients

    Up to 4 years

  • Performance in declarative memory in epilepsy patients

    Up to 4 years

  • CLAS on sleep slow waves

    Up to 4 years

  • +1 more secondary outcomes

Study Arms (6)

Children (4-11y) with epilepsy

EXPERIMENTAL

Down-phase-targeted closed-loop auditory stimulation is administered in each arm.

Other: Down-phase targeted auditory stimulation

Teenagers (12-17y) with epilepsy

EXPERIMENTAL
Other: Down-phase targeted auditory stimulation

Young adults (18-30y) with epilepsy

EXPERIMENTAL
Other: Down-phase targeted auditory stimulation

Healthy children (4-11y)

EXPERIMENTAL
Other: Down-phase targeted auditory stimulation

Healthy teenagers (12-17y)

EXPERIMENTAL
Other: Down-phase targeted auditory stimulation

Healthy young adults (18-30y)

EXPERIMENTAL
Other: Down-phase targeted auditory stimulation

Interventions

The presentation of a soft, brief tone (50 ms of pink noise). The volume will be held low enough to avoid provoking arousals or awakenings. In case of a waking-up-reaction, the volume will be lowered in steps of 5 dB.

Children (4-11y) with epilepsyHealthy children (4-11y)Healthy teenagers (12-17y)Healthy young adults (18-30y)Teenagers (12-17y) with epilepsyYoung adults (18-30y) with epilepsy

Eligibility Criteria

Age4 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Participants of any gender
  • Children, adolescents and young adults (4-30 years old)
  • Right-handed
  • Written informed consent by the participant or, if applicable, by their legal guardian after receiving information about the study For healthy participants:
  • Good general health status
  • For patients with epilepsy:
  • Diagnosed with epilepsy
  • Wake or sleep EEG within the last 12 months showing epileptic discharges.
  • Attending a regular school.

You may not qualify if:

  • Irregular sleep-wake rhythm
  • Shift work
  • Daytime sleep
  • Excessive sweating
  • Obesity
  • Sleep, psychiatric, neurological or physical disorders or illnesses other than epilepsy
  • Hearing disorder
  • Travelling across 2 or more time zones within the last month
  • Pregnancy
  • Skin allergy or very sensitive skin
  • Drug and medication use or abuse other than for the treatment of epilepsy
  • Daily nicotine use
  • High caffeine consumption, including coffee, black and green tea, mate, cola, energy drinks, and iced tea
  • \<16 years: \>1 servings/day = \>80 mg caffeine
  • \>=16 years: \>2 servings/day = \>160 mg caffeine
  • +11 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Children's Hospital Zurich

Zurich, 8032, Switzerland

RECRUITING

Related Publications (16)

  • Bellesi M, Riedner BA, Garcia-Molina GN, Cirelli C, Tononi G. Enhancement of sleep slow waves: underlying mechanisms and practical consequences. Front Syst Neurosci. 2014 Oct 28;8:208. doi: 10.3389/fnsys.2014.00208. eCollection 2014.

    PMID: 25389394BACKGROUND
  • Bolsterli BK, Gardella E, Pavlidis E, Wehrle FM, Tassinari CA, Huber R, Rubboli G. Remission of encephalopathy with status epilepticus (ESES) during sleep renormalizes regulation of slow wave sleep. Epilepsia. 2017 Nov;58(11):1892-1901. doi: 10.1111/epi.13910. Epub 2017 Sep 27.

    PMID: 28960278BACKGROUND
  • Bolsterli BK, Schmitt B, Bast T, Critelli H, Heinzle J, Jenni OG, Huber R. Impaired slow wave sleep downscaling in encephalopathy with status epilepticus during sleep (ESES). Clin Neurophysiol. 2011 Sep;122(9):1779-87. doi: 10.1016/j.clinph.2011.01.053. Epub 2011 Mar 26.

    PMID: 21441067BACKGROUND
  • Bolsterli Heinzle BK, Fattinger S, Kurth S, Lebourgeois MK, Ringli M, Bast T, Critelli H, Schmitt B, Huber R. Spike wave location and density disturb sleep slow waves in patients with CSWS (continuous spike waves during sleep). Epilepsia. 2014 Apr;55(4):584-91. doi: 10.1111/epi.12576. Epub 2014 Mar 20.

    PMID: 24650120BACKGROUND
  • Diekelmann S, Born J. The memory function of sleep. Nat Rev Neurosci. 2010 Feb;11(2):114-26. doi: 10.1038/nrn2762. Epub 2010 Jan 4.

    PMID: 20046194BACKGROUND
  • Esser SK, Hill SL, Tononi G. Sleep homeostasis and cortical synchronization: I. Modeling the effects of synaptic strength on sleep slow waves. Sleep. 2007 Dec;30(12):1617-30. doi: 10.1093/sleep/30.12.1617.

    PMID: 18246972BACKGROUND
  • Fattinger S, de Beukelaar TT, Ruddy KL, Volk C, Heyse NC, Herbst JA, Hahnloser RHR, Wenderoth N, Huber R. Deep sleep maintains learning efficiency of the human brain. Nat Commun. 2017 May 22;8:15405. doi: 10.1038/ncomms15405.

    PMID: 28530229BACKGROUND
  • Fattinger S, Heinzle BB, Ramantani G, Abela L, Schmitt B, Huber R. Closed-Loop Acoustic Stimulation During Sleep in Children With Epilepsy: A Hypothesis-Driven Novel Approach to Interact With Spike-Wave Activity and Pilot Data Assessing Feasibility. Front Hum Neurosci. 2019 May 21;13:166. doi: 10.3389/fnhum.2019.00166. eCollection 2019.

    PMID: 31164813BACKGROUND
  • Fattinger S, Schmitt B, Bolsterli Heinzle BK, Critelli H, Jenni OG, Huber R. Impaired slow wave sleep downscaling in patients with infantile spasms. Eur J Paediatr Neurol. 2015 Mar;19(2):134-42. doi: 10.1016/j.ejpn.2014.11.002. Epub 2014 Nov 29.

    PMID: 25530030BACKGROUND
  • Frauscher B, von Ellenrieder N, Ferrari-Marinho T, Avoli M, Dubeau F, Gotman J. Facilitation of epileptic activity during sleep is mediated by high amplitude slow waves. Brain. 2015 Jun;138(Pt 6):1629-41. doi: 10.1093/brain/awv073. Epub 2015 Mar 19.

    PMID: 25792528BACKGROUND
  • Galer S, Urbain C, De Tiege X, Emeriau M, Leproult R, Deliens G, Nonclerq A, Peigneux P, Van Bogaert P. Impaired sleep-related consolidation of declarative memories in idiopathic focal epilepsies of childhood. Epilepsy Behav. 2015 Feb;43:16-23. doi: 10.1016/j.yebeh.2014.11.032. Epub 2014 Dec 26.

    PMID: 25546732BACKGROUND
  • Halasz P, Bodizs R, Ujma PP, Fabo D, Szucs A. Strong relationship between NREM sleep, epilepsy and plastic functions - A conceptual review on the neurophysiology background. Epilepsy Res. 2019 Feb;150:95-105. doi: 10.1016/j.eplepsyres.2018.11.008. Epub 2019 Jan 31.

    PMID: 30712997BACKGROUND
  • Huber R, Ghilardi MF, Massimini M, Tononi G. Local sleep and learning. Nature. 2004 Jul 1;430(6995):78-81. doi: 10.1038/nature02663. Epub 2004 Jun 6.

    PMID: 15184907BACKGROUND
  • Ngo HV, Martinetz T, Born J, Molle M. Auditory closed-loop stimulation of the sleep slow oscillation enhances memory. Neuron. 2013 May 8;78(3):545-53. doi: 10.1016/j.neuron.2013.03.006. Epub 2013 Apr 11.

    PMID: 23583623BACKGROUND
  • Vyazovskiy VV, Harris KD. Sleep and the single neuron: the role of global slow oscillations in individual cell rest. Nat Rev Neurosci. 2013 Jun;14(6):443-51. doi: 10.1038/nrn3494. Epub 2013 May 2.

    PMID: 23635871BACKGROUND
  • Vyazovskiy VV, Olcese U, Lazimy YM, Faraguna U, Esser SK, Williams JC, Cirelli C, Tononi G. Cortical firing and sleep homeostasis. Neuron. 2009 Sep 24;63(6):865-78. doi: 10.1016/j.neuron.2009.08.024.

    PMID: 19778514BACKGROUND

MeSH Terms

Conditions

Epilepsy

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Officials

  • Reto Huber, Prof. Dr.

    University Children's Hospital, Zurich

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
Study helpers
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: The investigators aim to evaluate the effect of closed-loop auditory stimulation during sleep in healthy children, adolescents and adults, as well children, adolescents and adults with epilepsy. During closed-loop auditory stimulation, a brief, quiet, non-arousing auditory stimuli, e.g. brief bursts of pink noise (50ms), are presented at specific moments during sleep (STIM condition). This procedure allows to noninvasively interact with endogenous brain activity and to influence sleep-dependent neuroplasticity. During one experimental night, closed-loop auditory stimulation will be applied (STIM night). In the SHAM night, the experimental set-up is the same as in the experimental night, but no sounds will be presented.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 14, 2020

First Posted

January 20, 2021

Study Start

July 29, 2020

Primary Completion

October 1, 2022

Study Completion

December 1, 2025

Last Updated

January 20, 2021

Record last verified: 2021-01

Data Sharing

IPD Sharing
Will share

Voluntary approval of the participant or legal guardian of the participant is given by signed informed consent. Personal data will be collected and immediately coded to provide strict confidentiality. The participant code will only be available to the principal investigator and research coordinators. The EEG data, completely anonymized, will be made publicly available to be used in other studies, for which the participant must provide separate consent. The investigators comply with all legal provisions of the Data Protection Act. The data, fully anonymized, will be published in a dedicated online repository. The data includes * PSG data + CLAS triggers * Basic demographic information: gender, age, socioeconomic status, handedness * Chronotype score * Responses to behavioral tests * Actigraphy * Sleep quality and sleepiness scores

Time Frame
Start: December 2019 End: December 2025
Access Criteria
Ideally, the investigators would like to publish the data through the University of Zurich, which is currently in the process of developing and contributing to the SWISSUbase. Unfortunately, at this time, the repository for neural, biological or psychology data has not yet been created. If, by the time of publication, this is still unavailable, the investigators will choose a repository that is compliant with the FAIR principles such as OpenNeuro. At the end of the project the investigators will evaluate the infrastructures available; it is conceivable that a Swiss university resource, or more suitable repository, will be established by then.
More information

Available IPD Datasets

Individual Participant Data Set Access

Locations