Skip to content

rTMS for MDD: 5.5cm Rule vs. F3 Targeting

The Effects of Repetitive Transcranial Magnetic Stimulation Prefrontal Target Location on Outcomes for Major Depressive Disorder

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03378570
Enrollment
123
Registered
2017-12-20
Start date
2018-05-01
Completion date
2022-09-13
Last updated
2025-02-03

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

Conditions

Depression, Major Depressive Disorder

Keywords

Transcranial Magnetic Stimulation, rTMS, F3, 5.5cm rule, Targeting, TMS

Brief summary

The purpose of this study is to examine the effects of different treatment locations using repetitive transcranial magnetic stimulation (rTMS) to treat major depressive disorder.

Detailed description

Currently there is little standardization between rTMS treatment programs as to what is the best way to localize the left dorsolateral prefrontal cortex, which is the FDA-approved treatment location for clinical rTMS for major depressive disorder (MDD). Different targeting methods yield locations that can vary by up to a few centimeters. By comparing different treatment locations and obtaining neurobehavioral, neuroimaging, cognitive, and neuropsychological measures, this study would provide the opportunity to identify the optimal treatment targeting method when using rTMS for major depressive disorder in a clinical setting. This study will specifically be focusing on comparing the two most common targeting methods: a target 5.5cm anterior to the motor strip on the left prefrontal scalp and the F3 target location on the left prefrontal scalp as identified using the 10-20 EEG system nomenclature.

Interventions

DEVICERepetitive transcranial magnetic stimulation

Repetitive transcranial magnetic stimulation will be targeted to a location in the left prefrontal cortex and delivered according to FDA-approved parameters for the treatment of major depressive disorder, specifically high-frequency 10 Hz rTMS for 3000 pulses, 5 days per week for a total number of sessions as deemed clinically appropriate by the patient's clinical TMS treatment team but usually on the order of 20-30 treatments.

Sponsors

Nicholas Trapp
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of major depressive disorder * Age between 18 and 90 years * rTMS is clinically indicated as determined by clinical rTMS physician team at University of Iowa

Exclusion criteria

* rTMS contraindication such as implanted ferromagnetic material in the head or history of epilepsy with poorly controlled seizures * MRI

Design outcomes

Primary

MeasureTime frameDescription
Response Rates on General Anxiety Disorder 7-Item AssessmentPre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Comparison of the response rate (\>50% improvement) for the General Anxiety Disorder 7-Item Assessment between the 2 groups post-treatment.
Response and Remission Rates on Patient Health Questionnaire 9-Item AssessmentPre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Comparison of the response rate (\>50% improvement) and remission rate (score \<5) for the Patient Health Questionnaire 9-Item Assessment between the 2 groups post-treatment.
Response and Remission Rates on Montgomery-Asberg Depression Rating ScalePre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Comparison of the response rate (\>50% improvement) and remission rate (score \<10) for the MADRS between the 2 groups post-treatment.
Percentage Change in Patient Health Questionnaire 9-Item Assessment ScorePre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Overall change in total Patient Health Questionnaire 9-Item Assessment score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This assessment measures depression severity at baseline. Total scores of 5, 10, 15, and 20 represent markers for mild, moderate, moderately severe, and severe depression, respectively. All 9 items are summed to compute a total score, ranging from 0-27. Higher scores indicate more severe self-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.
Percentage Change in Montgomery-Asberg Depression Rating Scale ScorePre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Overall change in total Montgomery-Asberg Depression Rating Scale score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This scale assesses depression severity at baseline. Scores of 8, 17, and 34 are cut-off points for mild, moderate, severe depression, respectively. This 10 item scale is summed to compute a total score, ranging from 0-60. Higher scores indicate more severe clinician-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.
Percentage Change in General Anxiety Disorder 7-Item Assessment ScorePre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Overall change in total General Anxiety Disorder 7-Item Assessment score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This assesses anxiety severity as baseline. Scores of 5, 10, and 15 are cut-off points for mild, moderate, and severe anxiety, respectively. All 7 items are summed to compute a total score, ranging from 0-21. Higher scores indicate more severe self-rated anxiety symptoms. Negative change from baseline implies a decrease in anxiety symptoms.

Secondary

MeasureTime frameDescription
Emotion MeasuresPre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.T Score Changes in National Institutes of Health Toolbox Emotional Battery A T score of 50 corresponds to the population mean. Scores may range from 20-80 with a standard deviation of 10. Higher T scores indicate a higher endorsement of each domain. Here, we present changes in mean score from pre-treatment to post-treatment. In that way, a positive value represents a decrease in average T score, and vice versa.
Montreal Cognitive Assessment Score ChangesPre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.Change in Montreal Cognitive Assessment scores from baseline to final timepoint. Reported here as the mean difference in total Montreal Cognitive Assessment score from baseline to endpoint. Montreal Cognitive Assessment is used a screen for cognitive impairment, calculated by adding the points from each task, which range from 0-30. Higher scores indicate little to no cognitive impairment 26 or above: Normal cognition 18-25: Mild cognitive impairment 10-17: Moderate cognitive impairment Fewer than 10: Severe cognitive impairment

Countries

United States

Participant flow

Pre-assignment details

2 subjects withdrew before randomization 12 subjects were excluded due to head circumference \>60cm 2 refused randomization 2 subjects were not randomized for an unspecified reason

Participants by arm

ArmCount
5.5cm Rule Group
rTMS will be targeted at a left prefrontal target 5.5cm anterior to the primary motor strip identified on the scalp during motor threshold testing. Repetitive transcranial magnetic stimulation: Repetitive transcranial magnetic stimulation will be targeted to a location in the left prefrontal cortex and delivered according to FDA-approved parameters for the treatment of major depressive disorder, specifically high-frequency 10 Hz rTMS for 3000 pulses, 5 days per week for a total number of sessions as deemed clinically appropriate by the patient's clinical TMS treatment team but usually on the order of 20-30 treatments.
47
F3 Group
rTMS will be targeted at the left prefrontal scalp target identified as F3 according to the 10-20 EEG system. Repetitive transcranial magnetic stimulation: Repetitive transcranial magnetic stimulation will be targeted to a location in the left prefrontal cortex and delivered according to FDA-approved parameters for the treatment of major depressive disorder, specifically high-frequency 10 Hz rTMS for 3000 pulses, 5 days per week for a total number of sessions as deemed clinically appropriate by the patient's clinical TMS treatment team but usually on the order of 20-30 treatments.
58
Total105

Baseline characteristics

Characteristic5.5cm Rule GroupF3 GroupTotal
Age, Continuous41.3 years
STANDARD_DEVIATION 15.8
44.7 years
STANDARD_DEVIATION 15.1
43 years
STANDARD_DEVIATION 15.45
Comorbidities
ADHD
3 participants12 participants15 participants
Comorbidities
Anxiety disorders
26 participants24 participants50 participants
Comorbidities
Borderline Personality Disorder
7 participants5 participants12 participants
Comorbidities
OCD
2 participants4 participants6 participants
Comorbidities
PTSD
8 participants7 participants15 participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
47 Participants57 Participants104 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
General Anxiety Disorder 7-Item Assessment14.3 total score
STANDARD_DEVIATION 4.7
13.5 total score
STANDARD_DEVIATION 5.2
13.9 total score
STANDARD_DEVIATION 5
Montgomery-Asberg Depression Rating Scale29.1 total score
STANDARD_DEVIATION 6.9
29.8 total score
STANDARD_DEVIATION 5.9
29.5 total score
STANDARD_DEVIATION 6.4
Number of Medication Trials10.0 medications
STANDARD_DEVIATION 5.4
9.8 medications
STANDARD_DEVIATION 4.9
9.9 medications
STANDARD_DEVIATION 5.15
Patient Health Questionnaire 9-Item Assessment18.8 total score
STANDARD_DEVIATION 4.3
17.8 total score
STANDARD_DEVIATION 4.9
18.3 total score
STANDARD_DEVIATION 4.6
Psychiatric Medications
Antidepressants
43 Participants55 Participants98 Participants
Psychiatric Medications
Antipsychotics
18 Participants16 Participants34 Participants
Psychiatric Medications
Anxiolytics/Hypnotics
21 Participants19 Participants40 Participants
Psychiatric Medications
Benzodiazepines
17 Participants33 Participants50 Participants
Psychiatric Medications
Mood Stabilizers
8 Participants12 Participants20 Participants
Psychiatric Medications
Stimulants
9 Participants16 Participants25 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
2 Participants1 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
45 Participants56 Participants101 Participants
Region of Enrollment
United States
47 participants58 participants105 participants
Sex/Gender, Customized
Female
30 Participants39 Participants69 Participants
Sex/Gender, Customized
Female to Male
1 Participants0 Participants1 Participants
Sex/Gender, Customized
Male
16 Participants19 Participants35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 470 / 58
other
Total, other adverse events
0 / 470 / 58
serious
Total, serious adverse events
0 / 470 / 58

Outcome results

Primary

Percentage Change in General Anxiety Disorder 7-Item Assessment Score

Overall change in total General Anxiety Disorder 7-Item Assessment score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This assesses anxiety severity as baseline. Scores of 5, 10, and 15 are cut-off points for mild, moderate, and severe anxiety, respectively. All 7 items are summed to compute a total score, ranging from 0-21. Higher scores indicate more severe self-rated anxiety symptoms. Negative change from baseline implies a decrease in anxiety symptoms.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Data reported here includes subjects that had both first and final data point. As such, this group has a smaller sample size.

ArmMeasureValue (MEAN)Dispersion
5.5cm Rule GroupPercentage Change in General Anxiety Disorder 7-Item Assessment Score-33.6 percentage change from baselineStandard Error 5.3
F3 GroupPercentage Change in General Anxiety Disorder 7-Item Assessment Score27.5 percentage change from baselineStandard Error 6.9
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.p-value: 0.252t-test, 2 sided
Primary

Percentage Change in Montgomery-Asberg Depression Rating Scale Score

Overall change in total Montgomery-Asberg Depression Rating Scale score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This scale assesses depression severity at baseline. Scores of 8, 17, and 34 are cut-off points for mild, moderate, severe depression, respectively. This 10 item scale is summed to compute a total score, ranging from 0-60. Higher scores indicate more severe clinician-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Data reported here includes subjects that had both first and final data point. As such, this group has a smaller sample size.

ArmMeasureValue (MEAN)Dispersion
5.5cm Rule GroupPercentage Change in Montgomery-Asberg Depression Rating Scale Score-39.5 percentage of change from baselineStandard Error 5.6
F3 GroupPercentage Change in Montgomery-Asberg Depression Rating Scale Score-37.8 percentage of change from baselineStandard Error 5.6
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.p-value: 0.828t-test, 2 sided
Primary

Percentage Change in Patient Health Questionnaire 9-Item Assessment Score

Overall change in total Patient Health Questionnaire 9-Item Assessment score from pre to post-treatment assessment, comparing results of 2 active groups to assess for superiority of one treatment to the other. This assessment measures depression severity at baseline. Total scores of 5, 10, 15, and 20 represent markers for mild, moderate, moderately severe, and severe depression, respectively. All 9 items are summed to compute a total score, ranging from 0-27. Higher scores indicate more severe self-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

ArmMeasureValue (MEAN)Dispersion
5.5cm Rule GroupPercentage Change in Patient Health Questionnaire 9-Item Assessment Score-38.7 percentage of change from baselineStandard Error 5.1
F3 GroupPercentage Change in Patient Health Questionnaire 9-Item Assessment Score-39.1 percentage of change from baselineStandard Error 4.7
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.p-value: 0.945t-test, 2 sided
Primary

Response and Remission Rates on Montgomery-Asberg Depression Rating Scale

Comparison of the response rate (\>50% improvement) and remission rate (score \<10) for the MADRS between the 2 groups post-treatment.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Data reported here includes subjects that had both first and final data point. As such, this group has a smaller sample size.

ArmMeasureGroupValue (NUMBER)
5.5cm Rule GroupResponse and Remission Rates on Montgomery-Asberg Depression Rating ScaleResponders43.3 percentage of participants
5.5cm Rule GroupResponse and Remission Rates on Montgomery-Asberg Depression Rating ScaleRemitters20.0 percentage of participants
F3 GroupResponse and Remission Rates on Montgomery-Asberg Depression Rating ScaleResponders43.2 percentage of participants
F3 GroupResponse and Remission Rates on Montgomery-Asberg Depression Rating ScaleRemitters18.9 percentage of participants
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.~A power analysis revealed that a total sample size of 144 would have 80% power when testing for differences between target groups at alpha = 0.05. Accounting for potential attrition, the study conservatively planned to enroll 200 participants, with a planned interim analysis after 100 participants were randomized.p-value: 0.994Chi-squared
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.~A power analysis revealed that a total sample size of 144 would have 80% power when testing for differences between target groups at alpha = 0.05. Accounting for potential attrition, the study conservatively planned to enroll 200 participants, with a planned interim analysis after 100 participants were randomized.p-value: 0.911Chi-squared
Primary

Response and Remission Rates on Patient Health Questionnaire 9-Item Assessment

Comparison of the response rate (\>50% improvement) and remission rate (score \<5) for the Patient Health Questionnaire 9-Item Assessment between the 2 groups post-treatment.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

ArmMeasureGroupValue (NUMBER)
5.5cm Rule GroupResponse and Remission Rates on Patient Health Questionnaire 9-Item AssessmentResponders36.6 percentage of participants
5.5cm Rule GroupResponse and Remission Rates on Patient Health Questionnaire 9-Item AssessmentRemitters22.0 percentage of participants
F3 GroupResponse and Remission Rates on Patient Health Questionnaire 9-Item AssessmentResponders43.4 percentage of participants
F3 GroupResponse and Remission Rates on Patient Health Questionnaire 9-Item AssessmentRemitters20.8 percentage of participants
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.~A power analysis revealed that a total sample size of 144 would have 80% power when testing for differences between target groups at alpha = 0.05. Accounting for potential attrition, the study conservatively planned to enroll 200 participants, with a planned interim analysis after 100 participants were randomized.p-value: 0.505Chi-squared
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.~A power analysis revealed that a total sample size of 144 would have 80% power when testing for differences between target groups at alpha = 0.05. Accounting for potential attrition, the study conservatively planned to enroll 200 participants, with a planned interim analysis after 100 participants were randomized.p-value: 0.888Chi-squared
Primary

Response Rates on General Anxiety Disorder 7-Item Assessment

Comparison of the response rate (\>50% improvement) for the General Anxiety Disorder 7-Item Assessment between the 2 groups post-treatment.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Data reported here includes subjects that had both first and final data point. As such, this group has a smaller sample size.

ArmMeasureValue (NUMBER)
5.5cm Rule GroupResponse Rates on General Anxiety Disorder 7-Item Assessment27.3 percentage of participants
F3 GroupResponse Rates on General Anxiety Disorder 7-Item Assessment30.2 percentage of participants
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.~A power analysis revealed that a total sample size of 144 would have 80% power when testing for differences between target groups at alpha = 0.05. Accounting for potential attrition, the study conservatively planned to enroll 200 participants, with a planned interim analysis after 100 participants were randomized.p-value: 0.778t-test, 2 sided
Secondary

Emotion Measures

T Score Changes in National Institutes of Health Toolbox Emotional Battery A T score of 50 corresponds to the population mean. Scores may range from 20-80 with a standard deviation of 10. Higher T scores indicate a higher endorsement of each domain. Here, we present changes in mean score from pre-treatment to post-treatment. In that way, a positive value represents a decrease in average T score, and vice versa.

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Only a subset of participants completed this task, so total sample size is much smaller.

ArmMeasureGroupValue (MEAN)Dispersion
5.5cm Rule GroupEmotion MeasuresEmotional Support-0.2 T ScoreStandard Deviation 8.7
5.5cm Rule GroupEmotion MeasuresPerceived Stress4.6 T ScoreStandard Deviation 12
5.5cm Rule GroupEmotion MeasuresLoneliness3.2 T ScoreStandard Deviation 11.1
5.5cm Rule GroupEmotion MeasuresFear-Affect4.9 T ScoreStandard Deviation 6.7
5.5cm Rule GroupEmotion MeasuresMeaning & Purpose-4.5 T ScoreStandard Deviation 8
5.5cm Rule GroupEmotion MeasuresFear-Somatic Arousal-1.1 T ScoreStandard Deviation 10.9
5.5cm Rule GroupEmotion MeasuresPerceived Rejection-1.3 T ScoreStandard Deviation 10.5
5.5cm Rule GroupEmotion MeasuresSadness7.0 T ScoreStandard Deviation 14.5
5.5cm Rule GroupEmotion MeasuresInstrumental Support3.9 T ScoreStandard Deviation 9.4
5.5cm Rule GroupEmotion MeasuresAnger-Affect6.5 T ScoreStandard Deviation 11.1
5.5cm Rule GroupEmotion MeasuresPerceived Hostility1.8 T ScoreStandard Deviation 8.1
5.5cm Rule GroupEmotion MeasuresAnger-Hostility2.1 T ScoreStandard Deviation 12.2
5.5cm Rule GroupEmotion MeasuresGeneral Life Satisfaction-2.7 T ScoreStandard Deviation 7.1
5.5cm Rule GroupEmotion MeasuresAnger-Physical Aggression3.4 T ScoreStandard Deviation 9.2
5.5cm Rule GroupEmotion MeasuresNegative Affect6.1 T ScoreStandard Deviation 11.7
5.5cm Rule GroupEmotion MeasuresFriendship0.1 T ScoreStandard Deviation 5.3
5.5cm Rule GroupEmotion MeasuresSocial Satisfaction0.2 T ScoreStandard Deviation 8.5
5.5cm Rule GroupEmotion MeasuresSelf-Efficacy-1.6 T ScoreStandard Deviation 6.3
5.5cm Rule GroupEmotion MeasuresPsychological Well Being-5.6 T ScoreStandard Deviation 8.2
5.5cm Rule GroupEmotion MeasuresPositive Affect-7.2 T ScoreStandard Deviation 9.4
F3 GroupEmotion MeasuresPsychological Well Being-10.2 T ScoreStandard Deviation 9.1
F3 GroupEmotion MeasuresPositive Affect-10.4 T ScoreStandard Deviation 8.9
F3 GroupEmotion MeasuresGeneral Life Satisfaction-9.2 T ScoreStandard Deviation 9.6
F3 GroupEmotion MeasuresMeaning & Purpose-6.7 T ScoreStandard Deviation 9.5
F3 GroupEmotion MeasuresEmotional Support-6.9 T ScoreStandard Deviation 9
F3 GroupEmotion MeasuresInstrumental Support-5 T ScoreStandard Deviation 10.1
F3 GroupEmotion MeasuresFriendship-5.4 T ScoreStandard Deviation 7.5
F3 GroupEmotion MeasuresLoneliness5.8 T ScoreStandard Deviation 8.5
F3 GroupEmotion MeasuresPerceived Rejection4.7 T ScoreStandard Deviation 9.3
F3 GroupEmotion MeasuresPerceived Hostility4.3 T ScoreStandard Deviation 9.1
F3 GroupEmotion MeasuresAnger-Physical Aggression-0.6 T ScoreStandard Deviation 4.9
F3 GroupEmotion MeasuresSelf-Efficacy-3.2 T ScoreStandard Deviation 7.6
F3 GroupEmotion MeasuresPerceived Stress7.6 T ScoreStandard Deviation 8.8
F3 GroupEmotion MeasuresFear-Affect6.9 T ScoreStandard Deviation 8.6
F3 GroupEmotion MeasuresFear-Somatic Arousal4.4 T ScoreStandard Deviation 9.4
F3 GroupEmotion MeasuresSadness13.2 T ScoreStandard Deviation 10.9
F3 GroupEmotion MeasuresAnger-Affect6.3 T ScoreStandard Deviation 11.6
F3 GroupEmotion MeasuresAnger-Hostility2.7 T ScoreStandard Deviation 8.8
F3 GroupEmotion MeasuresNegative Affect8.7 T ScoreStandard Deviation 7.8
F3 GroupEmotion MeasuresSocial Satisfaction-7.2 T ScoreStandard Deviation 9.4
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Positive Affect.p-value: 0.278t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, General Life Satisfaction.p-value: 0.024t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Meaning \& Purpose.p-value: 0.439t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Emotional Support.p-value: 0.025t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Instrumental Support.p-value: 0.007t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Friendship.p-value: 0.014t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Loneliness.p-value: 0.398t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Perceived Rejection.p-value: 0.064t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Perceived Hostility.p-value: 0.368t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Self-Efficacy.p-value: 0.504t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Perceived Stress.p-value: 0.371t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Fear-Affect.p-value: 0.438t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Fear-Somatic Arousal.p-value: 0.096t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Sadness.p-value: 0.132t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Anger-Affect.p-value: 0.951t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Anger-Hostility.p-value: 0.852t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Anger-Physical Aggression.p-value: 0.083t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Negative Affect.p-value: 0.391t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Social Satisfaction.p-value: 0.014t-test, 2 sided
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures. Results below are for the subscale, Psychological Well Being.p-value: 0.109t-test, 2 sided
Secondary

Montreal Cognitive Assessment Score Changes

Change in Montreal Cognitive Assessment scores from baseline to final timepoint. Reported here as the mean difference in total Montreal Cognitive Assessment score from baseline to endpoint. Montreal Cognitive Assessment is used a screen for cognitive impairment, calculated by adding the points from each task, which range from 0-30. Higher scores indicate little to no cognitive impairment 26 or above: Normal cognition 18-25: Mild cognitive impairment 10-17: Moderate cognitive impairment Fewer than 10: Severe cognitive impairment

Time frame: Pre-assessment will be obtained within approximately 1 week of starting rTMS. Post-assessment will be obtained immediately following completion of rTMS course, usually 4-6 weeks later.

Population: Data reported here includes subjects that had both first and final data point. As such, this group has a smaller sample size.

ArmMeasureValue (MEAN)Dispersion
5.5cm Rule GroupMontreal Cognitive Assessment Score Changes.59 score on a scaleStandard Deviation 2.3
F3 GroupMontreal Cognitive Assessment Score Changes.56 score on a scaleStandard Deviation 1.8
Comparison: The null hypothesis of this study was that there would be no differences between targets across all measures.p-value: 0.951t-test, 2 sided
Post Hoc

General Anxiety Disorder 7-Item Assessment Linear Mixed Effects Model

An exploratory analysis to investigate between-group differences in trajectory of improvement as measured by group by time interactions. This assesses anxiety severity as baseline. Scores of 5, 10, and 15 are cut-off points for mild, moderate, and severe anxiety, respectively. All 7 items are summed to compute a total score, ranging from 0-21. Higher scores indicate more severe self-rated anxiety symptoms. Negative change from baseline implies a decrease in anxiety symptoms.

Time frame: Baseline to weekly timepoints

Population: All randomized participants were included in this analysis. Weekly timepoints have different ns due to dropouts and/or missing data.

ArmMeasureGroupValue (MEAN)Dispersion
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 210.9 mean GAD-7 total scoreStandard Deviation 5.4
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 49.7 mean GAD-7 total scoreStandard Deviation 4.9
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 112.3 mean GAD-7 total scoreStandard Deviation 5.1
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 59.6 mean GAD-7 total scoreStandard Deviation 5.5
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 310.7 mean GAD-7 total scoreStandard Deviation 5.7
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 69.0 mean GAD-7 total scoreStandard Deviation 5.6
5.5cm Rule GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelFirst Visit14.3 mean GAD-7 total scoreStandard Deviation 4.7
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 610.0 mean GAD-7 total scoreStandard Deviation 6.6
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelFirst Visit13.5 mean GAD-7 total scoreStandard Deviation 5.2
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 112.6 mean GAD-7 total scoreStandard Deviation 5.2
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 211.3 mean GAD-7 total scoreStandard Deviation 5.7
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 310.8 mean GAD-7 total scoreStandard Deviation 5.6
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 410.6 mean GAD-7 total scoreStandard Deviation 6.4
F3 GroupGeneral Anxiety Disorder 7-Item Assessment Linear Mixed Effects ModelWeek 510.0 mean GAD-7 total scoreStandard Deviation 6.5
p-value: 0.051Mixed Models Analysis
Post Hoc

Montgomery-Asberg Depression Rating Scale Linear Mixed Effects Model

An exploratory analysis to investigate between-group differences in trajectory of improvement as measured by group by time interactions. This scale assesses depression severity at baseline. Scores of 8, 17, and 34 are cut-off points for mild, moderate, severe depression, respectively. This 10 item scale is summed to compute a total score, ranging from 0-60. Higher scores indicate more severe clinician-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.

Time frame: Baseline to biweekly timepoints

Population: All randomized participants were included in this analysis. Weekly timepoints have different ns due to dropouts and/or missing data.

ArmMeasureGroupValue (MEAN)Dispersion
5.5cm Rule GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelEvaluation29.1 mean MADRS total scoreStandard Deviation 6.9
5.5cm Rule GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 2-3 Follow-up24.2 mean MADRS total scoreStandard Deviation 8.1
5.5cm Rule GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 4-5 Follow-up18.4 mean MADRS total scoreStandard Deviation 9.3
5.5cm Rule GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 6-7 Follow-up15.3 mean MADRS total scoreStandard Deviation 8.8
F3 GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 6-7 Follow-up16.4 mean MADRS total scoreStandard Deviation 9.7
F3 GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelEvaluation29.8 mean MADRS total scoreStandard Deviation 5.9
F3 GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 4-5 Follow-up19.6 mean MADRS total scoreStandard Deviation 8.7
F3 GroupMontgomery-Asberg Depression Rating Scale Linear Mixed Effects ModelWeek 2-3 Follow-up22.0 mean MADRS total scoreStandard Deviation 7.2
p-value: 0.963Mixed Models Analysis
Post Hoc

Patient Health Questionnaire 9-Item Assessment Linear Mixed Effects Model

An exploratory analysis to investigate between-group differences in trajectory of improvement as measured by group by time interactions. This assessment measures depression severity at baseline. Total scores of 5, 10, 15, and 20 represent markers for mild, moderate, moderately severe, and severe depression, respectively. All 9 items are summed to compute a total score, ranging from 0-27. Higher scores indicate more severe self-rated depressive symptoms. Negative change from baseline implies a decrease in depressive symptoms.

Time frame: Baseline to Weeks 1 through 6, assessed weekly

Population: All randomized participants were included in this analysis. Weekly timepoints have different ns due to dropouts and/or missing data.

ArmMeasureGroupValue (MEAN)Dispersion
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 214.6 mean PHQ-9 total scoreStandard Deviation 6.3
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 413.2 mean PHQ-9 total scoreStandard Deviation 6.3
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 115.7 mean PHQ-9 total scoreStandard Deviation 6.2
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 512.5 mean PHQ-9 total scoreStandard Deviation 6.3
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 314.2 mean PHQ-9 total scoreStandard Deviation 6.7
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 610.7 mean PHQ-9 total scoreStandard Deviation 6.7
5.5cm Rule GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelFirst Visit18.8 mean PHQ-9 total scoreStandard Deviation 4.3
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 611.2 mean PHQ-9 total scoreStandard Deviation 7.5
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelFirst Visit17.8 mean PHQ-9 total scoreStandard Deviation 4.9
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 116.2 mean PHQ-9 total scoreStandard Deviation 5.9
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 214.4 mean PHQ-9 total scoreStandard Deviation 6.3
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 312.6 mean PHQ-9 total scoreStandard Deviation 6.4
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 413.0 mean PHQ-9 total scoreStandard Deviation 6.5
F3 GroupPatient Health Questionnaire 9-Item Assessment Linear Mixed Effects ModelWeek 511.8 mean PHQ-9 total scoreStandard Deviation 7.1
p-value: 0.231Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026