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Compressed Intermittent Theta Burst Stimulation (ciTBS)

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ClinicalTrials.gov Identifier: NCT04684706
Recruitment Status : Recruiting
First Posted : December 24, 2020
Last Update Posted : December 24, 2020
Sponsor:
Information provided by (Responsible Party):
Yvette Sheline, University of Pennsylvania

Brief Summary:
In this proposal the investigators will use an accelerated TMS protocol that concentrates the magnetic stimulation that would usually occur over 6 weeks into 10 treatment sessions per days, for 5 consecutive days in patient with treatment-refractory depression. This protocol will build on a previously published study demonstrating clinical efficacy of intermittent theta-burst stimulation (iTBS) on left dorsolateral prefrontal cortex (L-dlPFC) in a treatment refractory population.

Condition or disease Intervention/treatment Phase
Treatment Resistant Depression Device: intermittent Theta Burst Stimulation Not Applicable

Detailed Description:

Major depressive disorder (MDD) is a disabling mental disorder with a lifetime prevalence of up to16% . Approximately 30% of MDD patients suffer treatment resistant depression (TRD), with at least 2 failed adequate trials of pharmacotherapy. Repetitive transcranial magnetic stimulation (rTMS) has been shown to be a safe treatment for TRD, yet the standard clinical technique for using it as treatment depressive disorders is associated with limited efficacy to date. Among the potential causes of limited efficacy have been the scalp based targeting technique that is currently the most common targeting method rather than techniques that incorporate functional magnetic resonance imaging (fMRI) neuronavigation, which have been shown to have greater efficacy. Image guided TMS can target specific functional brain networks with greater resolution that takes into account individual differences in brain anatomy.

Another technique for improving treatment efficacy, shown to modulate cortical excitability, may be the application of intermittent theta-burst stimulation in regular intervals, which has been shown to be no different than a longer-in-time application of rTMS. Paired with the evidence that iTBS has produced significant antidepressant responses in severely depressed individuals, and that relapse in depressive states predicts diminished efficacy of treatment as well as increased quantity of TBS pulses to have a beneficial effect, these recent iTBS findings suggest that iTBS may offer a valid treatment alternative to options that have proven otherwise ineffective in treating TRD. Therefore, the investigators aim to administer iTBS to severely-depressed participant in a shorter amount of time, in order to improve their antidepressant outcome.

Significance: This protocol builds on different notions:

  1. iTBS is not different in treatment outcome than rTMS while applying the same amount of pulses in shorter amount of time;
  2. The degree of treatment resistance is indicative of iTBS quantity needed to obtain an antidepressant treatment
  3. Repeated iTBS produces a significant effect in treating refractory depression
  4. Decreasing the interval between iTBS applications enhanced positive treatment outcomes.

Therefore, the compression of iTBS pulses with shorter intervals between sessions is hypothesized to have an increased beneficial effect on individuals affected by treatment-resistant depression.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Other
Official Title: A Within Study on the Effects of L-dlPFC Activation Through iTBS in Refractory Depression
Actual Study Start Date : February 20, 2020
Estimated Primary Completion Date : February 19, 2022
Estimated Study Completion Date : June 30, 2022

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Compressed iTBS schedule
Stimulation 3-pulse 50-Hz bursts at 5-Hz for 2-s trains, with trains every 10 s, for 10 minutes, 10 times a day, for 5 consecutive days.
Device: intermittent Theta Burst Stimulation
The present study will utilize TMS dosage of iTBS of 18 000 pulses a day for 5 consecutive days.




Primary Outcome Measures :
  1. Depressive Symptoms Change [ Time Frame: 2 Weeks ]
    Depressive symptoms will be measured before and after treatment by means of the clinician-administered Montgomery Asberg Depression Rating Scale (MADRS) (0-60, lower scores indicate lower depressive symptoms) and the self report Beck Depression Inventory (BDI II) (0-30, lower scores indicate lower depressive symptoms). Change will be measured by comparing measurements pre- and post- on the same measures. The bigger the change, the bigger the reduction in depressive symptoms.


Secondary Outcome Measures :
  1. Self report Symptom Change [ Time Frame: 2 weeks ]
    Depressive symptoms will be measured before and after treatment by means of the self report Beck Depression Inventory (BDI II) (0-30, lower scores indicate lower depressive symptoms). Change will be measured by comparing measurements pre- and post- on the same measures. The bigger the change, the bigger the reduction in depressive symptoms.



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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Gender, inclusive
  • 18 - 70 years of age
  • Meets Diagnostic and Statistical Manual of Mental Disorders criteria for primary diagnosis of MDD
  • Patients must be fluent in English
  • Participants must have the ability to provide consent
  • Montgomery Asberg Depression Rating Scale score ≥20
  • Failed 2+ prior treatments (treatment-refractory)
  • May be on current anti-depressant medication at the discretion of PI, if not exceeding doses that would make TMS an increased risk

Exclusion Criteria:

  • Pregnancy (Female participants)
  • MRI contraindication
  • Medical condition that interferes with the collection or interpretation of MRI data
  • Implanted devices such as: aneurysm clip or cardiac pacemaker
  • Diagnosis of stroke, epilepsy, or other neurological disorders interfering with treatment at PI discretion
  • Any factor the investigator believe may affect participant safety or compliance (ex: ≥100 miles from clinic)
  • Current alcohol or substance use disorder in last 3 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04684706


Contacts
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Contact: Tommaso Girelli 267 560 7345 tommaso.girelli@pennmedicine.upenn.edu
Contact: Janet Stock janet.stock@pennmedicine.upenn.edu

Locations
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United States, Pennsylvania
Center for Neuromodulation in Depression and Stress Recruiting
Philadelphia, Pennsylvania, United States, 19104
Contact: Maria Prociuk    215-573-4229    lmari@pennmedicine.upenn.edu   
Principal Investigator: Yvette Sheline, MD         
Sponsors and Collaborators
University of Pennsylvania
Investigators
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Principal Investigator: Yvette Sheline, MD Perelman School of Medicine University of Pennsylvania
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Responsible Party: Yvette Sheline, Director, Center for Neuromodulation in Depression and Stress (CNDS), University of Pennsylvania
ClinicalTrials.gov Identifier: NCT04684706    
Other Study ID Numbers: 834723
First Posted: December 24, 2020    Key Record Dates
Last Update Posted: December 24, 2020
Last Verified: December 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Keywords provided by Yvette Sheline, University of Pennsylvania:
TMS
fMRI
Additional relevant MeSH terms:
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Depression
Depressive Disorder, Treatment-Resistant
Behavioral Symptoms
Depressive Disorder
Mood Disorders
Mental Disorders