ClinicalTrials.gg
CompletedNCT05104697Updated Jan 28, 2025Results posted

TMS for Improving Response Inhibition in Adolescents With OCD

An interventional study of Transcranial Magnetic Stimulation in Obsessive-Compulsive Disorder, sponsored by Bradley Hospital. Completed at 1 site in United States. Open to participants aged 13 Years to 18 Years. Per ClinicalTrials.gov, last updated 2025-01-28.

Sponsored by Bradley Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
7
Allocation
Randomized
Ages
13 Years to 18 Years
Sex
All
01

Study summary

The study will examine whether inhibition of the pre-supplementary motor area (pSMA) using transcranial magnetic stimulation (TMS) normalizes activity in pSMA-connected circuits, improves response inhibition, and reduces compulsions in adolescents with OCD.

02

Conditions studied

  • Obsessive-Compulsive Disorder
03

In context

Obsessive-Compulsive Disorder

626 studies on the registry are indexed under Obsessive-Compulsive Disorder; 162 are open to participants now.

This study's enrollment of 7 is below the median of 45 across 510 interventional studies indexed under Obsessive-Compulsive Disorder.

Browse Obsessive-Compulsive Disorder studies →

Lead sponsor

Bradley Hospital is the lead sponsor of 22 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
13 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 13-18 years
  • Presence of OCD, as indicated by score on the Children's Yale-Brown Obsessive-Compulsive Scale
  • Patient and one parent speak English fluently (to ensure comprehension of study measures and instructions
  • Right-handed
  • If taking psychotropic medications, these have been stable for > 6 weeks and are expected to remain stable for the approximately 3-week study protocol
  • If currently in psychotherapy, symptom improvement has plateaued (no improvement in the past 6 weeks and symptoms expected to remain stable for the approximately 3-week study protocol)

Exclusion criteria

Exclusion Criteria:

    • Medical conditions contraindicated for TMS or EEG, including history of intracranial pathology, increased intracranial pressure, epilepsy or seizures, traumatic brain injury, brain tumor, stroke, implanted medical devices, possible pregnancy (female of childbearing age not using effective contraception), or any other serious medical condition (note that medical history will be reviewed by a study physician prior to TMS administration)

      • Metal in the head, except mouth (e.g., cochlear implant, implanted brain stimulators, aneurysm clips)
      • Active suicidality or psychosis
      • Existing diagnosis of Bipolar disorder, Autism Spectrum Disorder, mental retardation, or cognitive disability
      • Substance abuse or dependence
      • Taking a stimulant medication (and unwilling to forgo on study visit days)
      • Taking medication with the potential to lower seizure threshold (e.g., neuroleptics, antipsychotics)
      • Patient is a ward of the state
      • Family history of epilepsy
      • History of syncope
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
7 participants (actual)

Study arms

  • Other
    TMS at visit 1, Sham at visit 2

    At visit 1, participants will receive active TMS using continuous theta burst over the preSMA. At Visit 2, participants will receive sham (fake) TMS in the same location.

    Device: Transcranial Magnetic Stimulation

  • Other
    Sham at visit 1, TMS at visit 2

    At visit 2, participants will receive active TMS using continuous theta burst over the preSMA. At Visit 1, participants will receive sham (fake) TMS in the same location.

    Device: Transcranial Magnetic Stimulation

Interventions

  • DeviceTranscranial Magnetic Stimulation

    All teens will receive active TMS; they will be randomly assigned to receive active TMS at either visit 1 or visit 2 (order counterbalanced)

06

What researchers measure

Primary outcomes

  1. Change in Response Time on Stop Trials of the Stop Signal Task

    Computerized task, where shorter response time (in milliseconds) indicates better performance

    Time frame: Change from pre (within 1 hour before) to post (within 1 hour after) intervention

  2. Change in Frontocentral P3 Amplitude on Electroencephalogram (EEG)

    Electroencephalogram (EEG) measured amplitude on successful stop trials of the stop signal task (SST). Calculated by averaging the epochs of successful stop trials time-locked to the stop signal from the midline electrode (Cz).

    Time frame: Change from pre (within 1 hour before) to post (within 1 hour after) intervention

Secondary outcomes

  1. Self-report Symptom Question

    Self-rated compulsions on a single-item 0-5 scale, where higher scores indicate more compulsions

    Time frame: post (within 1 hour after) intervention

07

Results

Posted Jan 28, 2025
Limitations and caveats
This trial has a small sample size; results will need to be confirmed in a larger sample.

Participant flow

Participants were recruited from a pediatric OCD specialty clinic between March 2022 and March 2023. Note that recruitment began in March 2022 before the first participant was formally enrolled on the study start date of April 1, 2022.

Participant flow — Overall Study
MilestoneTMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2
Started34
Completed33
Not completed01
Withdrew: Withdrawal by subject01

Outcome measures

PrimaryChange in Response Time on Stop Trials of the Stop Signal Task

Computerized task, where shorter response time (in milliseconds) indicates better performance

Time frame:
Change from pre (within 1 hour before) to post (within 1 hour after) intervention
Reported as:
Mean · milliseconds
Change in Response Time on Stop Trials of the Stop Signal Task
millisecondsActive TMSSham (Fake) TMS
Change in Response Time on Stop Trials of the Stop Signal Task-26.2 ± 102.1-31.7 ± 123.1
PrimaryChange in Frontocentral P3 Amplitude on Electroencephalogram (EEG)

Electroencephalogram (EEG) measured amplitude on successful stop trials of the stop signal task (SST). Calculated by averaging the epochs of successful stop trials time-locked to the stop signal from the midline electrode (Cz).

Time frame:
Change from pre (within 1 hour before) to post (within 1 hour after) intervention
Reported as:
Mean · microvolts (µV)
Change in Frontocentral P3 Amplitude on Electroencephalogram (EEG)
microvolts (µV)Active TMSSham (Fake) TMS
Change in Frontocentral P3 Amplitude on Electroencephalogram (EEG)0.5 ± 2.91.5 ± 2.2
SecondarySelf-report Symptom Question

Self-rated compulsions on a single-item 0-5 scale, where higher scores indicate more compulsions

Time frame:
post (within 1 hour after) intervention
Reported as:
Mean · units on a scale
Self-report Symptom Question
units on a scaleActive TMSSham (Fake) TMS
Self-report Symptom Question2.7 ± 1.42.5 ± 2.1

Adverse events

Collected over Data were collected at one of two study visits that occurred over the course of two weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active TMS0/6 (0%)0/6 (0%)1/6 (16.7%)
Sham (Fake) TMS0/6 (0%)0/6 (0%)1/6 (16.7%)
Most frequent other events
Most frequent other events
EventActive TMSSham (Fake) TMS
HeadacheNervous system disorders0/61/6
Scalp discomfortNervous system disorders1/60/6

Baseline characteristics

Not different from information reported in participant flow

Age, Categorical
Age, Categorical(Participants)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
<=18 years347
Between 18 and 65 years000
>=65 years000
Age, Continuous
Age, Continuous(years)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
Mean13.7 ± 1.216.3 ± 1.015.1 ± 1.7
Sex/Gender, Customized
Sex/Gender, Customized(Participants)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
Male101
Female235
Nonbinary011
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
Hispanic or Latino000
Not Hispanic or Latino347
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White347
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
United States347
Children's Yale Brown Obsessive Compulsive Scale (CYBOCS)
Children's Yale Brown Obsessive Compulsive Scale (CYBOCS)(units on a scale)TMS at Visit 1, Sham at Visit 2Sham at Visit 1, TMS at Visit 2Total
Mean24.0 ± 1.724.3 ± 5.324.1 ± 3.8
08

Study locations

1 site
  • Emma Pendleton Bradley Hospital
    Riverside, Rhode Island 02915, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 19, 2024
  • Informed consent form · Aug 12, 2021

Documents are hosted by the registry — open the source record to download them.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2022 to primary completion in Aug 2023, 16 months.

Results were first posted in Jan 2025, 1 year 5 months after primary completion.

Of 230 non-industry interventional studies with no phase under Obsessive-Compulsive Disorder, half reached primary completion within 43 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 68. This study's 16 months is below that.

Counting every sponsor, half of 232 studies reached it within 43 months; a quarter within 22 and three quarters within 65.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 9, 2021
First posted
Nov 3, 2021
StartActual
Apr 1, 2022
Primary completionActual
Aug 1, 2023
CompletionActual
Sep 1, 2023
Results first posted
Jan 28, 2025
Last update
Jan 28, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05104697
Lead sponsor
Bradley Hospital
Responsible party
Kristen Benito (Associate Professor (Research), Bradley Hospital) — Principal investigator
First posted
Nov 3, 2021
Start date
Apr 1, 2022
Primary completion
Aug 1, 2023
Completion
Sep 1, 2023
Results posted
Jan 28, 2025
Last update
Jan 28, 2025

Study contacts

Kristen Benito, PhD
principal investigator · Bradley Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion