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Accelerated iTBS for PTSD and Depression

15 september 2026 bijgewerkt door: Lawson Research Institute of St. Joseph's

Accelerated Intermittent Theta Burst Stimulation for Depression in Post-Traumatic Stress Disorder: A Single-Arm, Open-Label Feasibility Study

The goal of this pilot clinical trial is to learn if a faster brain stimulation schedule is practical, safe, tolerable, and acceptable. This study looks at accelerated intermittent theta burst stimulation, or accelerated iTBS. This is a non-invasive type of magnetic brain stimulation. This study is for adults with post-traumatic stress disorder (PTSD) and major depressive disorder (MDD).

The main questions this study aims to answer are:

  1. Can participants complete six short brain stimulation sessions per day for five days?
  2. Is this treatment schedule safe and tolerable for participants?
  3. What changes occur in depression symptoms, PTSD symptoms, anxiety, quality of life, and brain activity over time?

Participants will:

  1. Complete health screening and baseline assessments.
  2. Receive six short sessions of magnetic brain stimulation per day for five days.
  3. Have their brain activity measured using an EEG recording.
  4. Return for a post-treatment assessment at Week 2 and follow-up visits at Week 5 and Week 12.

Studie Overzicht

Gedetailleerde beschrijving

This is a single-arm, open-label pilot feasibility study of accelerated intermittent theta burst stimulation, also called accelerated iTBS, in adults with both post-traumatic stress disorder (PTSD) and major depressive disorder (MDD). The study is designed to assess whether an accelerated iTBS schedule can be delivered safely, tolerably, and feasibly in a clinical setting. The main focus is feasibility, including recruitment, treatment adherence, participant retention, safety, tolerability, and participant acceptability. About 12 to 16 participants will receive active accelerated iTBS. Treatment will include six short stimulation sessions per day over five consecutive days, for a total of 30 sessions. The study will also collect exploratory information over time on depression symptoms, PTSD symptoms, anxiety, daily functioning, quality of life, and brain activity measured by EEG. Because this is a small pilot study, the analysis will be mainly descriptive. The results will help refine study procedures and guide the design of a larger future clinical trial.

Studietype

Ingrijpend

Inschrijving (Geschat)

16

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

Studie Locaties

    • Ontario
      • London, Ontario, Canada, N6C 0A7
        • Werving
        • St. Joseph's Health Care London, Parkwood Institute Mental Health Care Building
        • Contact:
        • Contact:
        • Hoofdonderzoeker:
          • Radhika Kelkar, MD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion Criteria:

  • Adults aged 18 years or older.
  • Current post-traumatic stress disorder (PTSD) and current major depressive disorder (MDD), confirmed by a structured diagnostic interview (e.g., MINI 6.0 using the PTSD and MDD modules).
  • Minimum symptom severity at baseline: HAMD-17 score ≥14 (moderate depression) and/or PCL-5 score ≥33 (probable PTSD).
  • On a stable pharmacologic and/or psychotherapeutic regimen for at least 4 weeks prior to baseline, and willing to maintain stability during the treatment phase, unless medically necessary.
  • Capacity to provide informed consent and comply with study procedures and visits at St. Joseph's Health Care, London/Parkwood Institute.
  • Sufficient English proficiency to complete consent and study assessments.

Exclusion Criteria:

  • Neurologic or device-related risks, including seizure history, traumatic brain injury with loss of consciousness greater than 5 minutes, major neurologic illness, or metal/electronic implants contraindicated for transcranial magnetic stimulation.
  • Psychiatric or substance-related risks, including current psychotic disorder, acute mania, diagnosis of Bipolar I or Bipolar II disorder, recent substance use disorder, or imminent suicide risk.
  • Medical or medication-related risks, including unstable severe illness, high-risk medications, hearing impairment, unwillingness to use ear protection, or prior non-response to an adequate course of theta burst stimulation for the current depression/PTSD episode.
  • Enrollment in another interventional trial.
  • Inability to comply with the study schedule.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Accelerated iTBS
Participants will receive active accelerated intermittent theta burst stimulation (iTBS). Treatment will consist of six short stimulation sessions per day delivered over five consecutive days, for a total of 30 sessions.
Accelerated intermittent theta burst stimulation, also called accelerated iTBS, is a non-invasive magnetic brain stimulation intervention. Stimulation is delivered to the left dorsolateral prefrontal cortex using a transcranial magnetic stimulation system. Participants receive six short sessions per day over five consecutive days.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Recruitment rate
Tijdsspanne: Study recruitment period, up to 12 months
Recruitment rate will be assessed as the number of participants enrolled per month during the active recruitment period.
Study recruitment period, up to 12 months
Consent rate
Tijdsspanne: Study recruitment period, up to 12 months
Consent rate will be assessed as the proportion of eligible individuals approached who provide informed consent.
Study recruitment period, up to 12 months
Treatment adherence
Tijdsspanne: Treatment Days 1 through 5
Treatment adherence will be assessed as the percentage of scheduled accelerated iTBS sessions completed during the 5-day treatment course.
Treatment Days 1 through 5
Retention through Week 12 follow-up
Tijdsspanne: Baseline through Week 12
Retention will be assessed as the proportion of enrolled participants who complete the Week 12 follow-up visit.
Baseline through Week 12
Adverse events
Tijdsspanne: Treatment Days 1 through Week 12
Adverse events will be assessed as the proportion of participants who experience one or more adverse events during treatment and follow-up.
Treatment Days 1 through Week 12
Serious adverse events
Tijdsspanne: Treatment Days 1 through Week 12
Serious adverse events will be assessed as the proportion of participants who experience one or more serious adverse events during treatment and follow-up.
Treatment Days 1 through Week 12
Discontinuations due to adverse events
Tijdsspanne: Treatment Days 1 through Week 12
Tolerability will be assessed as the proportion of participants who discontinue accelerated iTBS because of adverse events.
Treatment Days 1 through Week 12
Participant satisfaction with accelerated iTBS
Tijdsspanne: Week 2, Week 5, and Week 12
Participant satisfaction will be assessed using a 5-point Likert satisfaction rating scale. Scores range from 1 to 5, with higher scores indicating greater satisfaction.
Week 2, Week 5, and Week 12
Participant feedback on accelerated iTBS
Tijdsspanne: Week 2, Week 5, and Week 12
Participant feedback will be assessed using brief feedback questions about the accelerated iTBS treatment schedule and overall study experience. Responses will be summarized descriptively.
Week 2, Week 5, and Week 12

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Exploratory change in clinician-rated depression symptom severity measured by HAMD-17
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Clinician-rated depression symptom severity will be assessed using the Hamilton Depression Rating Scale-17. Total scores range from 0 to 52, with higher scores indicating greater depression symptom severity.
Baseline, Week 2, Week 5, and Week 12
Exploratory change in self-reported depression symptom severity measured by PHQ-9
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Self-reported depression symptom severity will be assessed using the Patient Health Questionnaire-9. Total scores range from 0 to 27, with higher scores indicating greater depression symptom severity.
Baseline, Week 2, Week 5, and Week 12
Exploratory change in self-reported PTSD symptom severity measured by PCL-5
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Self-reported PTSD symptom severity will be assessed using the PTSD Checklist for DSM-5. Total scores range from 0 to 80, with higher scores indicating greater PTSD symptom severity.
Baseline, Week 2, Week 5, and Week 12
Exploratory change in clinician-rated PTSD symptom severity measured by CAPS-5
Tijdsspanne: Baseline, Week 2, and Week 12
Clinician-rated PTSD symptom severity will be assessed using the Clinician-Administered PTSD Scale for DSM-5. Total symptom severity scores range from 0 to 80, with higher scores indicating greater PTSD symptom severity.
Baseline, Week 2, and Week 12
Exploratory change in anxiety symptom severity measured by GAD-7
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Anxiety symptom severity will be assessed using the Generalized Anxiety Disorder-7 item Scale. Total scores range from 0 to 21, with higher scores indicating greater anxiety symptom severity.
Baseline, Week 2, Week 5, and Week 12
Exploratory change in cognitive function measured by MoCA
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Cognitive function will be assessed using the Montreal Cognitive Assessment. Total scores range from 0 to 30, with higher scores indicating better cognitive function.
Baseline, Week 2, Week 5, and Week 12
Exploratory change in functioning and disability measured by WHODAS 2.0
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Functioning and disability will be assessed using the WHO Disability Assessment Schedule 2.0
Baseline, Week 2, Week 5, and Week 12
Exploratory change in quality of life measured by Q-LES-Q-SF
Tijdsspanne: Baseline, Week 2, Week 5, and Week 12
Quality of life will be assessed using the Quality of Life Enjoyment and Satisfaction Questionnaire Short Form.
Baseline, Week 2, Week 5, and Week 12
Baseline clinical global severity measured by CGI-S
Tijdsspanne: Baseline
Clinical global severity will be assessed using the Clinical Global Impression-Severity scale. Scores range from 1 to 7, with higher scores indicating greater illness severity.
Baseline
Exploratory change in clinical global improvement measured by CGI-I
Tijdsspanne: Week 2, Week 5, and Week 12
Clinical global improvement will be assessed using the Clinical Global Impression-Improvement scale. Scores range from 1 to 7, with lower scores indicating greater clinical improvement.
Week 2, Week 5, and Week 12
Exploratory change in resting-state EEG alpha power
Tijdsspanne: Baseline, Treatment Day 1, and Treatment Day 5
Resting-state EEG alpha power recorded at frontal electrodes will be assessed using EEG recordings collected at baseline and on treatment Days 1 and 5. On Days 1 and 5, brief resting-state EEG recordings will be collected immediately before and after each iTBS session to explore neurophysiological changes associated with accelerated iTBS.
Baseline, Treatment Day 1, and Treatment Day 5
Exploratory change in resting-state EEG gamma power
Tijdsspanne: Baseline, Treatment Day 1, and Treatment Day 5
Resting-state EEG gamma power recorded at frontal electrodes will be assessed using EEG recordings collected at baseline and on treatment Days 1 and 5. On Days 1 and 5, brief resting-state EEG recordings will be collected immediately before and after each iTBS session to explore neurophysiological changes associated with accelerated iTBS.
Baseline, Treatment Day 1, and Treatment Day 5

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Radhika Kelkar, MD, St. Joseph's Health Care London, Parkwood Institute, Finch Family Mental Health Care Building

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 september 2026

Primaire voltooiing (Geschat)

1 juni 2027

Studie voltooiing (Geschat)

1 september 2027

Studieregistratiedata

Eerst ingediend

9 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

26 juni 2026

Eerst geplaatst (Werkelijk)

2 juli 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 september 2026

Laatste update ingediend die voldeed aan QC-criteria

15 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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