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Managing Mild Traumatic Brain Injury Related Headaches With Repetitive Transcranial Magnetic Stimulation

Long Term Efficacy of rTMS in Managing MTBI-related Headache

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03314584
Enrollment
179
Registered
2017-10-19
Start date
2018-01-01
Completion date
2024-01-31
Last updated
2025-08-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Traumatic Brain Injury (TBI)

Keywords

TBI, traumatic brain injury, transcranial magnetic stimulation, headache

Brief summary

Persistent headache is one of the most common debilitating symptoms in military personnel suffering from mild traumatic brain injury (MTBI). This study aims to assess the long-term effect of repetitive transcranial magnetic stimulation (rTMS) in managing MTBI related headaches for up to 2-3 months by comparing the treatment effect of active-rTMS to sham-rTMS.

Detailed description

Headache is one of the most common debilitating chronic pain conditions in either active or retired military personnel with MTBI. This high prevalence of persistent chronic headache is often associated with neuropsychological dysfunction in mood, attention, and memory, which casts a profound negative impact on patients' quality of life and increases stress in their caregivers. Unfortunately, as witnessed by the investigators in their clinical practices, conventional pharmacological treatments for MTBI related headache (MTBI-HA) has not been shown to be effective and drugs such as narcotics contain many long-term untoward psychosomatic and abusive side effects. This calls for an urgent need in developing alternate and innovative long-term headache management strategies for this rapidly increasing patient population. Coinciding with other published treatment protocols related to traumatic brain injury and pain, this initial clinical evidence provides compelling support for the current proposal aiming to assess the effect of a longer duration of rTMS protocol in managing MTBI-HA for up to 10 weeks after the initiation of the treatment. Given existing treatment options for MTBI-HA are limited, validating such a non-pharmacological and non-invasive treatment option will significantly enhance the capability of the VA healthcare system in caring for this rapidly increasing patient population. 1. PRE-TREATMENT PHASE (weeks 1-2) consists of Visit 1 (Screening Visit) and Visit 2 (Pre-treatment Assessments); 2. TREAMENT PHASE (week 3-4) consists of Visits 3-12 (Neuronavigation guided rTMS consisting of 10 weekday treatments at \>24 and \< 72 hours apart, weekends excluded, maximum 5 weeks for treatment completion) rTMS will take place in Building 23 Room 105 at the VASDHS; and 3. POST-TREATMENT PHASE (week 5-14) consists of two initial weekly visits (Visits 13&14) and two additional biweekly visits (Visits 15&16) and one monthly visit (Visit 17). Brain anatomical and functional MRI will be performed within 72 hours after Visits 2 and 13. Subjects will be required to fill out headache diary between assessment visits. Headache assessments along with quality of life, mood and functions assessments will be carried out at Visits 1,2, and 13--17. This frequency of treatment and duration of follow-up is in line with recently published rTMS articles related to TBI, headache and pain, and also in accordance with the 3-month post treatment initiation follow-up guideline/recommendation.

Interventions

DEVICETranscranial Magnetic Stimulation

Active-repetitive transcranial magnetic stimulation (rTMS) at the left motor cortex.

DEVICESham Transcranial Magnetic Stimulation

Sham rTMS will consist of the same parameters as active, however, the subject will not receive the actual magnetic stimulation to the left motor cortex due to the use of a double sided Active/Sham coil used specifically for research studies.

DIAGNOSTIC_TESTMagnetic resonance imaging (MRI)

Brain imaging will be done via MRI prior to the first rTMS/Sham TMS session. Imaging will allow investigators to target specific areas in the brain.

Sponsors

VA Office of Research and Development
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

This is a double-blinded study where only the statistician is aware of the randomization.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* The following diagnostic criteria for MTBI based on the 1993 American Congress of Rehabilitation Medicine and recent recommendation from the DOD, and the current diagnostic criteria adopted by the VASDHS TBI Clinic will be used for the study. A traumatically induced physiological disruption of brain function, as manifested by at least one of the following: * any loss of consciousness * any loss of memory for events immediately before or after the accident * any alteration in mental state at the time of the accident, e.g.: * feeling dazed * disoriented * confused) * Focal neurologic deficit (s) that may or may not be transient but where the severity of the injury does not exceed the following: * loss of consciousness of approximately 30 min or less * after 30 min, an initial Glasgow Coma Scale score of 13-15 * post-traumatic amnesia not greater than 24 hrs * In addition, the following established diagnostic criteria for Persistent headache attributed to mild traumatic injury headache based on the International Classification of Headache Disorder (ICHD-3) will be applied to the study subjects: * A. Any headache fulfilling criteria C and D * B. Traumatic injury to the head has occurred * C. Headache is reported to have developed within 7 d after one of the following: * 1\. injury to the head * 2\. regaining of consciousness following the injury * 3\. discontinuation of medication(s) that impairs the ability to sense or report headache following the injury * D. Headache persists for \>3 mo after injury to the head * E. Not better accounted for by another ICHD-3 diagnosis Additional Inclusion Criteria: * no prior experience of TMS treatment * average persistent headache intensity more than 30 on the 0-100 mechanical visual analog scale(M-VAS) at the screening visit (visit 1) and average persistent headache intensity score greater than 3/10 on a numerical rating scale (NRS) reported in the headache diary (between visits 1&2) * no history of daily persistent headache prior to the MTBI incidence

Exclusion criteria

* pregnancy; To be eligible for the study and to ensure no pregnancy risk, you will need to utilize contraception or practice abstinence until your study participation is completed * history of pacemaker implant * any ferromagnetic material in the brain or body that would prohibit the patients from having a brain MRI, e.g.: * bullet fragment * shrapnel * device implant * history of dementia, major psychiatric or life threatening diseases * presence of any other chronic neuropathic pain states; * history of seizure * pending litigation * lack of ability to understand the experimental protocol and to adequately communicate in English * history of chronic headache diagnoses such migraine, tension or cluster headaches prior to the incidence of MTBI. * history of chronic headache prior to the MTBI incidence at a frequency more than once a month lasting more than one hour. * evidence in the chart of recent exacerbation of depressive or anxiety symptoms, active substance dependence, suicidal intent or attempt within the previous month, and/or current psychotic symptoms

Design outcomes

Primary

MeasureTime frameDescription
Average Intensity of Debilitating Headaches.The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Intensity was rated on a scale of 0-10 with 0 indicating no pain and 10 indicating the worst pain they have experience. Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.
Number of Headache Days Per WeekThe measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.
Number of Days With Debilitating MTBI-headaches Per Week.The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.
Duration of Debilitating MTBI-headaches (Hours).The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatments occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.
Average Interference (0-10) of Headaches in Daily Activities.The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency, duration, and interference of MTBI-headaches (MTBI-HA). A score of 0 for interference would indicate no interference in daily activities while a score of 10 would indicate complete interference (e.g. the subject could not get out of bed and go to work due to their pain). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.
Baseline vs Post-Treatment HIT-6 Scores (36-78).The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure is measuring headache impact on quality of life and will be quantified through the self-assessed Headache Impact Test (HIT-6). Each question ranges from 6-13 and the total score ranges from 36 to 78. The assessment indicates the effect that headaches have on normal daily life and ability to function with a higher score indicating more interference in daily life and function.
Change From Baseline to Post-Treatment HDRS-17 ScoresThe measure will be assessed each visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be measuring depression scores and will be quantified through the administered Hamilton Scale for Depression. This contains 17 items to be rated (HDRS-17), but four other questions are not added to the total score and are used to provide additional clinical information. Each item on the questionnaire is scored on a 3 or 5 point scale, depending on the item, and the total score is compared to the corresponding descriptor. The total score ranges from 0 to 53 and is calculated from adding together the first 17 questions. A higher score indicated more severe depression.
Connors Continuous Performance Test Score.The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure quantified through the Connors continuous performance test will be sustained and selective attention. This is administered on a laptop and is automatically scored. Key performance indicators are reported as T-scores (mean of 50, SD = 10) and percentiles. T-scores are compared to the normative sample. Variability measure which looked at response speed consistency and indicated fluctuations in attention. A higher score indicated more fluctuations.
Brief Pain Inventory Global Score.The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome will measure global pain through the brief pain inventory assessment. Pain will be recorded at it's worst, it's best and on average over the previous 24 hours on a 0 to 10 scale These scores are reflected in questions 3-6 of the assessment and will be averaged together to give an overall average pain level score with a higher value reflecting more pain. Then the pain's impact on general activity, mood, walking ability, normal work, relationships, sleep and enjoyment of life will be measured on a 0 to 10 scale and averaged for an overall pain score. These scores are reflected in question 9a-g and will be averaged together to give an overall average pain interference level with a higher value indicating more interference in daily life.
Hopkins Verbal Learning Test (HVLT-R) Total ScoresThe measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The Hopkins Verbal Learning Test (HVLT-R) will be used to measure memory. In this assessment, 12 words are taught and subjects are tasked to recall those words in three difference trials. When scoring the HVLT-R, the number of words recalled are summed to calculate a total recall score which ranges from 0-36 with higher values indicating more words being recalled.
Stroop Test ScoreThe measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The Stroop test was administered to assess cognitive functioning performance. In the test, the participant must demonstrate inhibition of cognitive interference by naming the color of the colored word instead of the word itself based on the observation that normal individuals can read words much faster than they can identify and name colors. This follows two other trials where the participant just reads the words aloud and another trial of the participant just identifying the color of a series of x's. Each trial, the participant was given 45 second to identify as many colors as they could. There is no maximum score for this assessment. This assessment is scored by the number of items they were able to correctly read out rather than on a T-score. A higher score indicated higher cognitive functioning.
Average Intensity of Persistent Headaches.The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Intensity was rated on a scale of 0-10 with 0 indicating no pain and 10 indicating the worst pain they have experienced. Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Secondary

MeasureTime frameDescription
Significant T-Values for Connectivity Between Regions.Subjects will have 2 functional magnetic imaging scans, at baseline and then at the 1-week post treatment follow-up.Resting state functional magnetic imaging scans and subsequent processing using CONN Toolbox were used to determine T-values. ROIs (region of interest) where determined and compared to other ROIs to assess connectivity between regions. Value of 0 indicated no significant connectivity between regions (p\<0.01). The sign of the value indicated directionality of connectivity. Larger absolute values of the T-value indicated stronger connectivity.

Countries

United States

Participant flow

Participants by arm

ArmCount
Transcranial Magnetic Stimulation
Active-repetitive transcranial magnetic stimulation (rTMS) at the left motor cortex. Transcranial Magnetic Stimulation: Active-repetitive transcranial magnetic stimulation (rTMS) at the left motor cortex. Magnetic resonance imaging (MRI): Brain imaging will be done via MRI prior to the first rTMS/Sham TMS session. Imaging will allow investigators to target specific areas in the brain.
32
Sham Transcranial Magnetic Stimulation
Sham rTMS will consist of the same parameters as active, however, the subject will not receive the actual magnetic stimulation to the left motor cortex. Sham Transcranial Magnetic Stimulation: Sham rTMS will consist of the same parameters as active, however, the subject will not receive the actual magnetic stimulation to the left motor cortex due to the use of a double sided Active/Sham coil used specifically for research studies. Magnetic resonance imaging (MRI): Brain imaging will be done via MRI prior to the first rTMS/Sham TMS session. Imaging will allow investigators to target specific areas in the brain.
38
Total70

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up40
Overall StudyWithdrawal by Subject33

Baseline characteristics

CharacteristicTranscranial Magnetic StimulationTotalSham Transcranial Magnetic Stimulation
Age, Continuous37.88 years
STANDARD_DEVIATION 11.07
39.44 years
STANDARD_DEVIATION 9.46
40.76 years
STANDARD_DEVIATION 7.76
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants13 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants52 Participants28 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants5 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants4 Participants3 Participants
Race (NIH/OMB)
Black or African American
4 Participants9 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants4 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants7 Participants5 Participants
Race (NIH/OMB)
White
23 Participants46 Participants23 Participants
Region of Enrollment
United States
32 Participants70 Participants38 Participants
Sex: Female, Male
Female
6 Participants12 Participants6 Participants
Sex: Female, Male
Male
26 Participants58 Participants32 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 380 / 41
other
Total, other adverse events
0 / 380 / 41
serious
Total, serious adverse events
1 / 382 / 41

Outcome results

Primary

Average Intensity of Debilitating Headaches.

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Intensity was rated on a scale of 0-10 with 0 indicating no pain and 10 indicating the worst pain they have experience. Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationAverage Intensity of Debilitating Headaches.Pre-intervention debilitating headache intensity6.6 score on a scaleStandard Deviation 1.6
Transcranial Magnetic StimulationAverage Intensity of Debilitating Headaches.Post-intervention (3-months after TX) debilitating headache Intensity5.8 score on a scaleStandard Deviation 2
Sham Transcranial Magnetic StimulationAverage Intensity of Debilitating Headaches.Pre-intervention debilitating headache intensity6.5 score on a scaleStandard Deviation 1.7
Sham Transcranial Magnetic StimulationAverage Intensity of Debilitating Headaches.Post-intervention (3-months after TX) debilitating headache Intensity5.7 score on a scaleStandard Deviation 2.4
Primary

Average Intensity of Persistent Headaches.

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Intensity was rated on a scale of 0-10 with 0 indicating no pain and 10 indicating the worst pain they have experienced. Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationAverage Intensity of Persistent Headaches.Pre-intervention persistent headache intensity5.0 score on a scaleStandard Deviation 1.3
Transcranial Magnetic StimulationAverage Intensity of Persistent Headaches.Post-intervention (3-months after TX) persistent headache Intensity3.8 score on a scaleStandard Deviation 1.5
Sham Transcranial Magnetic StimulationAverage Intensity of Persistent Headaches.Pre-intervention persistent headache intensity4.7 score on a scaleStandard Deviation 1.5
Sham Transcranial Magnetic StimulationAverage Intensity of Persistent Headaches.Post-intervention (3-months after TX) persistent headache Intensity3.9 score on a scaleStandard Deviation 1.7
p-value: 0.338Mixed Models Analysis
Primary

Average Interference (0-10) of Headaches in Daily Activities.

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency, duration, and interference of MTBI-headaches (MTBI-HA). A score of 0 for interference would indicate no interference in daily activities while a score of 10 would indicate complete interference (e.g. the subject could not get out of bed and go to work due to their pain). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationAverage Interference (0-10) of Headaches in Daily Activities.Pre-intervention debilitating headache interference6.9 score on a scaleStandard Deviation 1.5
Transcranial Magnetic StimulationAverage Interference (0-10) of Headaches in Daily Activities.Post-intervention (3-months after TX) debilitating headache interference5.8 score on a scaleStandard Deviation 2.1
Sham Transcranial Magnetic StimulationAverage Interference (0-10) of Headaches in Daily Activities.Pre-intervention debilitating headache interference6.6 score on a scaleStandard Deviation 1.8
Sham Transcranial Magnetic StimulationAverage Interference (0-10) of Headaches in Daily Activities.Post-intervention (3-months after TX) debilitating headache interference5.7 score on a scaleStandard Deviation 2.6
p-value: 0.018Mixed Models Analysis
Primary

Baseline vs Post-Treatment HIT-6 Scores (36-78).

The outcome measure is measuring headache impact on quality of life and will be quantified through the self-assessed Headache Impact Test (HIT-6). Each question ranges from 6-13 and the total score ranges from 36 to 78. The assessment indicates the effect that headaches have on normal daily life and ability to function with a higher score indicating more interference in daily life and function.

Time frame: The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationBaseline vs Post-Treatment HIT-6 Scores (36-78).Pre-intervention HIT-6 total score.65.2 score on a scaleStandard Deviation 4.8
Transcranial Magnetic StimulationBaseline vs Post-Treatment HIT-6 Scores (36-78).Post-intervention (3-months post TX) HIT-6 total score.60.7 score on a scaleStandard Deviation 8.8
Sham Transcranial Magnetic StimulationBaseline vs Post-Treatment HIT-6 Scores (36-78).Pre-intervention HIT-6 total score.65.1 score on a scaleStandard Deviation 6.5
Sham Transcranial Magnetic StimulationBaseline vs Post-Treatment HIT-6 Scores (36-78).Post-intervention (3-months post TX) HIT-6 total score.60.3 score on a scaleStandard Deviation 8.8
p-value: 0.598Mixed Models Analysis
Primary

Brief Pain Inventory Global Score.

The outcome will measure global pain through the brief pain inventory assessment. Pain will be recorded at it's worst, it's best and on average over the previous 24 hours on a 0 to 10 scale These scores are reflected in questions 3-6 of the assessment and will be averaged together to give an overall average pain level score with a higher value reflecting more pain. Then the pain's impact on general activity, mood, walking ability, normal work, relationships, sleep and enjoyment of life will be measured on a 0 to 10 scale and averaged for an overall pain score. These scores are reflected in question 9a-g and will be averaged together to give an overall average pain interference level with a higher value indicating more interference in daily life.

Time frame: The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationBrief Pain Inventory Global Score.Pre-intervention BPI overall score.5.1 score on a scaleStandard Deviation 1.4
Transcranial Magnetic StimulationBrief Pain Inventory Global Score.Post-intervention (3-months post TX) BPI overall score.4.2 score on a scaleStandard Deviation 2.6
Sham Transcranial Magnetic StimulationBrief Pain Inventory Global Score.Pre-intervention BPI overall score.5.5 score on a scaleStandard Deviation 1.8
Sham Transcranial Magnetic StimulationBrief Pain Inventory Global Score.Post-intervention (3-months post TX) BPI overall score.4.3 score on a scaleStandard Deviation 2.4
p-value: 0.606Mixed Models Analysis
Primary

Change From Baseline to Post-Treatment HDRS-17 Scores

The outcome measure will be measuring depression scores and will be quantified through the administered Hamilton Scale for Depression. This contains 17 items to be rated (HDRS-17), but four other questions are not added to the total score and are used to provide additional clinical information. Each item on the questionnaire is scored on a 3 or 5 point scale, depending on the item, and the total score is compared to the corresponding descriptor. The total score ranges from 0 to 53 and is calculated from adding together the first 17 questions. A higher score indicated more severe depression.

Time frame: The measure will be assessed each visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationChange From Baseline to Post-Treatment HDRS-17 ScoresPre-intervention HRSD total score.14.5 score on a scaleStandard Deviation 7.4
Transcranial Magnetic StimulationChange From Baseline to Post-Treatment HDRS-17 ScoresPost-intervention (3-months post TX) HRSD total score.11.8 score on a scaleStandard Deviation 8.8
Sham Transcranial Magnetic StimulationChange From Baseline to Post-Treatment HDRS-17 ScoresPre-intervention HRSD total score.16.5 score on a scaleStandard Deviation 7.1
Sham Transcranial Magnetic StimulationChange From Baseline to Post-Treatment HDRS-17 ScoresPost-intervention (3-months post TX) HRSD total score.12.3 score on a scaleStandard Deviation 7.8
p-value: 0.296Mixed Models Analysis
Primary

Connors Continuous Performance Test Score.

The outcome measure quantified through the Connors continuous performance test will be sustained and selective attention. This is administered on a laptop and is automatically scored. Key performance indicators are reported as T-scores (mean of 50, SD = 10) and percentiles. T-scores are compared to the normative sample. Variability measure which looked at response speed consistency and indicated fluctuations in attention. A higher score indicated more fluctuations.

Time frame: The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationConnors Continuous Performance Test Score.Pre-intervention CPT-3 Variability score.58.0 T-ScoreStandard Deviation 15.2
Transcranial Magnetic StimulationConnors Continuous Performance Test Score.Post-intervention (3-months post TX) CPT-3 Variability score.61.3 T-ScoreStandard Deviation 18.8
Sham Transcranial Magnetic StimulationConnors Continuous Performance Test Score.Pre-intervention CPT-3 Variability score.66.1 T-ScoreStandard Deviation 19
Sham Transcranial Magnetic StimulationConnors Continuous Performance Test Score.Post-intervention (3-months post TX) CPT-3 Variability score.56.1 T-ScoreStandard Deviation 12.9
p-value: 0.033Mixed Models Analysis
Primary

Duration of Debilitating MTBI-headaches (Hours).

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatments occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationDuration of Debilitating MTBI-headaches (Hours).Pre-intervention debilitating headache duration3.5 hoursStandard Deviation 1.6
Transcranial Magnetic StimulationDuration of Debilitating MTBI-headaches (Hours).Post-intervention (3-months after TX) debilitating headache duration4.3 hoursStandard Deviation 3.3
Sham Transcranial Magnetic StimulationDuration of Debilitating MTBI-headaches (Hours).Pre-intervention debilitating headache duration5.5 hoursStandard Deviation 4.6
Sham Transcranial Magnetic StimulationDuration of Debilitating MTBI-headaches (Hours).Post-intervention (3-months after TX) debilitating headache duration5.0 hoursStandard Deviation 4.3
p-value: 0.046Mixed Models Analysis
Primary

Hopkins Verbal Learning Test (HVLT-R) Total Scores

The Hopkins Verbal Learning Test (HVLT-R) will be used to measure memory. In this assessment, 12 words are taught and subjects are tasked to recall those words in three difference trials. When scoring the HVLT-R, the number of words recalled are summed to calculate a total recall score which ranges from 0-36 with higher values indicating more words being recalled.

Time frame: The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationHopkins Verbal Learning Test (HVLT-R) Total ScoresPre-intervention HVLT-R total recall score.23.5 score on a scaleStandard Deviation 4.6
Transcranial Magnetic StimulationHopkins Verbal Learning Test (HVLT-R) Total ScoresPost-intervention (3-months post TX) HVLT-R total recall score.24.2 score on a scaleStandard Deviation 5.8
Sham Transcranial Magnetic StimulationHopkins Verbal Learning Test (HVLT-R) Total ScoresPre-intervention HVLT-R total recall score.21.9 score on a scaleStandard Deviation 5.4
Sham Transcranial Magnetic StimulationHopkins Verbal Learning Test (HVLT-R) Total ScoresPost-intervention (3-months post TX) HVLT-R total recall score.23.7 score on a scaleStandard Deviation 6.7
p-value: 0.287Mixed Models Analysis
Primary

Number of Days With Debilitating MTBI-headaches Per Week.

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationNumber of Days With Debilitating MTBI-headaches Per Week.Pre-intervention debilitating headache frequency2.1 days/weekStandard Deviation 2
Transcranial Magnetic StimulationNumber of Days With Debilitating MTBI-headaches Per Week.Post-intervention (3-months after TX) debilitating headache frequency1.3 days/weekStandard Deviation 1.8
Sham Transcranial Magnetic StimulationNumber of Days With Debilitating MTBI-headaches Per Week.Pre-intervention debilitating headache frequency2.1 days/weekStandard Deviation 1.9
Sham Transcranial Magnetic StimulationNumber of Days With Debilitating MTBI-headaches Per Week.Post-intervention (3-months after TX) debilitating headache frequency1.8 days/weekStandard Deviation 1.7
p-value: 0.004Mixed Models Analysis
Primary

Number of Headache Days Per Week

The outcome measure will be quantified through the headache diary log that tracks the intensity, frequency and duration of MTBI-headaches (MTBI-HA). Baseline data includes all logs from the start of the study until the start of treatment. Post-intervention data looked at the time between the 3-month follow-up and the previous visit.

Time frame: The measure will be assessed daily from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects are missing their 3-month follow up data due to it not being collected.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationNumber of Headache Days Per WeekPre-intervention persistent headache frequency4.2 days/weekStandard Deviation 2.9
Transcranial Magnetic StimulationNumber of Headache Days Per WeekPost-intervention (3-months after TX) persistent headache frequency3.1 days/weekStandard Deviation 2.3
Sham Transcranial Magnetic StimulationNumber of Headache Days Per WeekPre-intervention persistent headache frequency4.6 days/weekStandard Deviation 2
Sham Transcranial Magnetic StimulationNumber of Headache Days Per WeekPost-intervention (3-months after TX) persistent headache frequency4.3 days/weekStandard Deviation 1.9
p-value: <0Mixed Models Analysis
Primary

Stroop Test Score

The Stroop test was administered to assess cognitive functioning performance. In the test, the participant must demonstrate inhibition of cognitive interference by naming the color of the colored word instead of the word itself based on the observation that normal individuals can read words much faster than they can identify and name colors. This follows two other trials where the participant just reads the words aloud and another trial of the participant just identifying the color of a series of x's. Each trial, the participant was given 45 second to identify as many colors as they could. There is no maximum score for this assessment. This assessment is scored by the number of items they were able to correctly read out rather than on a T-score. A higher score indicated higher cognitive functioning.

Time frame: The measure will be assessed every visit from baseline to the 3-month post-treatment follow up (treatment occurred for 2-5 weeks starting in week 3).

Population: Some subjects were excluded from the pre-intervention or post-intervention data due to missing data. Subjects did not need both to be included in the analysis. The number analyzed below reflects that total subjects with valid data for that group and time point.

ArmMeasureGroupValue (MEAN)Dispersion
Transcranial Magnetic StimulationStroop Test ScorePre-intervention Stroop color word total score.36.6 Number of wordsStandard Deviation 13
Transcranial Magnetic StimulationStroop Test ScorePost-intervention (3-months post TX) Stroop color word total score.44.2 Number of wordsStandard Deviation 12.2
Sham Transcranial Magnetic StimulationStroop Test ScorePre-intervention Stroop color word total score.37.2 Number of wordsStandard Deviation 14.2
Sham Transcranial Magnetic StimulationStroop Test ScorePost-intervention (3-months post TX) Stroop color word total score.43.6 Number of wordsStandard Deviation 9.5
p-value: 0.049Mixed Models Analysis
Secondary

Significant T-Values for Connectivity Between Regions.

Resting state functional magnetic imaging scans and subsequent processing using CONN Toolbox were used to determine T-values. ROIs (region of interest) where determined and compared to other ROIs to assess connectivity between regions. Value of 0 indicated no significant connectivity between regions (p\<0.01). The sign of the value indicated directionality of connectivity. Larger absolute values of the T-value indicated stronger connectivity.

Time frame: Subjects will have 2 functional magnetic imaging scans, at baseline and then at the 1-week post treatment follow-up.

Population: Some subjects were excluded due to not having a resting state MRI scan performed.

ArmMeasureGroupValue (NUMBER)
Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Premotor (BA6)8.77 T-value
Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Insula (BA13)6.57 T-value
Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Premotor (BA46)-3.23 T-value
Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Somatosensory (BA7)2.85 T-value
Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Cingulate (BA24-31)4.06 T-value
Sham Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Somatosensory (BA7)0 T-value
Sham Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Cingulate (BA24-31)6.12 T-value
Sham Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Premotor (BA6)8.76 T-value
Sham Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Premotor (BA46)-3.61 T-value
Sham Transcranial Magnetic StimulationSignificant T-Values for Connectivity Between Regions.Left Motor Cortex (BA4) to Insula (BA13)5.50 T-value

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026