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Vagus Nerve Stimulation on Improving Sleep in Inpatient Rehab for Post-Acute Stroke

6. října 2026 aktualizováno: Casa Colina Hospital and Centers for Healthcare

The Impact of Vagus Nerve Stimulation on Improving Sleep for Individuals in an Inpatient Rehab Facility for Post-Acute Ischemic Stroke

The goal of this clinical trial is to learn if a device which provides vagal nerve stimulation, applied to the tragus of the ear via an ear clip, can improve sleep in individuals recovering from stroke while they are treated in a rehabilitation hospital. The main questions this study aims to answer are:

  1. Does using this device improve insomnia?
  2. Does this device have any impact on the person's stroke severity, mobility, self-care, or ability to think? Researchers will compare this treatment to a sham (a look-alike device that will not deliver the stimulation).

Participants will:

  • Complete questionnaires about insomnia and their ability to think
  • Use the device for 30 minutes every evening for at least 10 nights during their inpatient stay
  • Complete a log tracking their use of the device and any concerns

Přehled studie

Postavení

Zatím nenabíráme

Podmínky

Intervence / Léčba

Detailní popis

For this randomized control trial, all patients admitted to Casa Colina's acute rehabilitation unit with a diagnosis of stroke will be screened against inclusion and exclusion criteria. Participants will be assessed using a cognition screen via the Mini Mental Exam and the Insomnia Severity Index (ISI), a validated tool for measuring and grading the presence of insomnia. The initial assessments will be completed within the first 3-5 days from admission to the acute rehabilitation unit. Participants will be randomized into the intervention group or sham treatment group. All participants will receive a handout on sleep hygiene. All participants will be instructed around the use of the non-invasive taVNS Parasym device (by Parasym Ltd., London) and the training log which will include reporting of any side effects and any other personal bedtime routines to assist with sleep. In line with previous studies investigating the impact of taVNS on other post-stroke symptoms, the intervention group will be instructed to utilize the Parasym device for 30min daily between 7-9pm for at least 10 days following. Stimulation parameters will be set at 200µs pulse width (with proprietary waveform) and 20Hz. The intensity will be set to level 21 and increased up to 32 as tolerated, but reduced sequentially to intensity level 12 if unable to tolerate due to discomfort. They will include amplitudes 1.0-1.7mA for therapeutic thresholds previously studied in stroke research (Li 2022) and allow for uniformity of application of the device between treatment and sham groups. The sham treatment group will be instructed in using the Parasym device the same way, however, their issued devices will include a sham earpiece that will prevent the transmission of taVNS. Reassessment of the ISI will be completed at 12-15 days, or earlier if the patient discharges prior to this timeline. A short 2-week taVNS program has been reported to have some effect on insomnia (Liu 2025) in a non-stroke population and this timeline has also been chosen as it coincides with the current typical length of stay for individuals post stroke in the acute rehabilitation unit.

All participants of the study will continue to receive the usual care for their individual rehabilitation program including therapy and medication interventions. Additional data will be collected beyond the screening tests including demographic information, stroke location, time since stroke, history of prior stroke, history of diabetes, NIH stroke scale on admission, record of medications that may impact sleep, consult to neurology service, use of respiratory devices on admission or during their rehab course (supplemental O2, CPAP, BiPAP), and GG and C scores of the IRF-PAI for mobility, self-care, and cognition.

Typ studie

Intervenční

Zápis (Odhadovaný)

52

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

  • Jméno: Hannah Cone, PT, DPT, NCS
  • Telefonní číslo: 3111 9095967733
  • E-mail: HCone@casacolina.org

Studijní místa

    • California
      • Pomona, California, Spojené státy, 91767
        • Casa Colina Hospital and Centers for Healthcare
        • Kontakt:
        • Kontakt:
        • Vrchní vyšetřovatel:
          • Marie Yeseta, PT, DPT, NCS

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  1. Admitted to Casa Colina's acute rehabilitation service
  2. Diagnosis of ischemic stroke
  3. Age 18 years or older
  4. English or Spanish speaking
  5. Sufficient cognition to follow program instructions tested Mini Mental Exam (score >17/30)
  6. Confirmed sleep abnormalities based on the Insomnia Severity Index (ISI) meeting criteria for subthreshold or clinical insomnia (score >7/28)

Exclusion Criteria:

  1. Hemorrhagic stroke or hemorrhagic conversion of ischemic stroke
  2. Other confirmed neurological diagnoses
  3. Previous surgical intervention on the vagus nerve
  4. Any open wound or cancerous lesions at the ear within 1 inch of the ear tragus
  5. Contraindication to the device, including patients with severe bradycardia, patients with a permanent implanted metallic or electronic device or jewelry at close proximity (2cm) to the ear tragus, patients with a recent (within 1 year) history of trigeminal neuralgia, pregnancy

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Dvojnásobek

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: transauricular Vagal Nerve Stimulation (taVNS)

Participants will be assessed for cognition via the Mini Mental Exam and the Insomnia Severity Index (ISI). The initial assessments will be completed within the first 3-5 days from admission to the acute rehabilitation unit. Participants will receive a handout on sleep hygiene. Participants will be instructed around the use of the non-invasive taVNS Parasym device (by Parasym Ltd., London) and the training log which will include reporting of any side effects and any other personal bedtime routines to assist with sleep. The participant will be instructed to utilize the Parasym device for 30min daily between 7-9pm for at least 10 days following. Reassessment of the ISI will be completed at 12-15 days, or earlier if the patient discharges prior to this timeline. These participants will continue to receive the usual care for their individual rehabilitation program including therapy and medication interventions.

All participants will be instructed around the use of the non-invasive taVNS Parasym device (by Parasym Ltd., London). Participants will be instructed to utilize the Parasym device for 30min daily between 7-9pm for at least 10 days following. Stimulation parameters will be set at 200µs pulse width (with proprietary waveform) and 20Hz. The intensity will be set to level 21 and increased up to 32 as tolerated, but reduced sequentially to intensity level 12 if unable to tolerate due to discomfort. They will include amplitudes 1.0-1.7mA for therapeutic thresholds.

Falešný srovnávač: Sham transauricular Vagal Nerve Stimulation (Sham taVNS)

Participants will be assessed for cognition via the Mini Mental Exam and the Insomnia Severity Index (ISI). The initial assessments will be completed within the first 3-5 days from admission to the acute rehabilitation unit. Participants will receive a handout on sleep hygiene. Participants will be instructed around the use of the non-invasive taVNS Parasym device (by Parasym Ltd., London) and the training log which will include reporting of any side effects and any other personal bedtime routines to assist with sleep. The participant will be instructed to utilize the Parasym device for 30min daily between 7-9pm for at least 10 days following. For this group, their issued devices will include a sham earpiece that will prevent transmission of taVNS. The ISI will be re-assessed at 12-15 days, or earlier if the patient discharges prior to this timeline. Participants will continue to receive the usual care for their individual rehabilitation program, including therapy and medications.

All participants will be instructed around the use of the non-invasive taVNS Parasym device (by Parasym Ltd., London). Participants will be instructed to utilize the Parasym device for 30min daily between 7-9pm for at least 10 days following. Stimulation parameters will be set to the same parameters as for the experimental group, however his device will include a sham earpiece that will prevent the transmission of taVNS.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Insomnia Severity Index
Časové okno: Initial assessment on Day 3-5 of their inpatient stay. Reassessment at 12-15 days, or earlier if the patient discharges prior to this timeline.

A brief screening tool for insomnia including seven items assessing the nature and symptoms of their sleep issues. Questions relate to the responder's sleep, symptom severity and satisfaction with their sleep, as well as the effect of their insomnia on daily function, social impact, and overall distress related to their sleep. Each question is answered on a 5-point Likert scale. Total scores range from 0-28, with a higher score indicating worse insomnia severity.

Initial assessment on Day 3-5 of their inpatient stay. Reassessment at 12-15 days, or earlier if the patient discharges prior to this timeline.

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Inpatient Rehabilitation Facility Patient Assessment Instrument (IRF-PAI) Admission and Discharge Scores - GG and C sections
Časové okno: Assessed within 48 hours of admission, re-assessed at discharge (with a typical length of stay of 12 to 15 days).

Standardized assessments by the healthcare team regarding level of assistance required by the participant for mobility, self-care, and cognition. The GG section assesses self-care (7 items) and mobility (17 items) on a scale from 1-6, with a higher number indicating greater independence. If a participant is unwilling or unsafe to perform an activity, or if the activity is not applicable or there is an environmental limitation, special codes can be applied.

The C section of the IRF-PAI assesses cognition via the Brief Interview for Mental Status comprising repetition of 3 words, temporal orientation, and recall. Participants are scored in this section from 1-15 with a higher score indicating better cognition. The presence of any acute-onset mental status change is considered here.

Assessed within 48 hours of admission, re-assessed at discharge (with a typical length of stay of 12 to 15 days).

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Vyšetřovatelé

  • Ředitel studie: Emily Rosario, PhD, Casa Colina Hospital and Centers for Healthcare

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

16. října 2026

Primární dokončení (Odhadovaný)

16. října 2027

Dokončení studie (Odhadovaný)

16. prosince 2027

Termíny zápisu do studia

První předloženo

29. září 2026

První předloženo, které splnilo kritéria kontroly kvality

29. září 2026

První zveřejněno (Aktuální)

5. října 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

8. října 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

6. října 2026

Naposledy ověřeno

1. října 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • SleepVNS

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ano

produkt vyrobený a vyvážený z USA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .