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CognitionNCT04123496

rTMS to Enhance Cognitive Performance and Promote Resilience

A study testing rTMS in people with Cognition and Stress Reaction, run by Medical University of South Carolina at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine the most effective dose of brief, non-invasive brain stimulation (repetitive transcranial magnetic stimulation, rTMS) for improving cognitive functions such as attention and memory as well as to improve the ability to recover from stressful situations (stress resilience). Read more about this study

Who is it for?
Ages 22 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Cognition, Stress Reaction
What is being tested?
rTMS
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
38 participants
Where
1 siteUnited States
Study dates
21 Nov 2019to 27 Oct 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 22 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • No history of mental or physical illness
  • No implanted metal in the body
  • College graduates (Associates degree or higher)
  • Negative urine pregnancy test, if female subject of childbearing potential
  • Able to read and understand questionnaires and informed consent

Who cannot join

  • Any current psychiatric diagnosis or current Clinical Global Impression ratings of psychiatric illness > 1
  • Current physical illness
  • History of CNS disease, concussion, overnight hospitalization, tumors, seizures, meningitis, encephalitis, abnormal CT/MRI of the brain
  • Moderate to severe traumatic brain injury (TBI)
  • History of a continuing significant laboratory finding
  • Frequent or severe headaches
Show all 11Show fewer
  • Any history of psychotropic medication prior to study enrollment
  • Females of childbearing potential who are pregnant (by urine HCG), nursing, or who are not using a reliable form of birth control.
  • active participation or plan for enrollment in another evidence-based clinical trial affecting psychosocial function
  • repeated abuse or dependence upon drugs (excluding nicotine and caffeine)
  • implanted devices/ferrous metal of any kind

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical University of South Carolina

    Charleston, South Carolina, 29401-5799

Other trials in United States

About this study

Official title: Safety and Efficacy of an Accelerated Protocol of Intermittent Theta Burst Transcranial Magnetic Stimulation (TMS) to Enhance Performance and Promote Resilience in Astronauts: Study 1

The purpose of this study is to determine the most effective dose of brief, non-invasive brain stimulation (repetitive transcranial magnetic stimulation, rTMS) for improving cognitive functions such as attention and memory as well as to improve the ability to recover from stressful situations (stress resilience).

Read the detailed description

Repetitive transcranial magnetic stimulation (rTMS) works by rapidly turning a focused magnetic field on-and-off repeatedly over your head, which passes directly through your hair, scalp, and skull and onto your brain, and can temporarily increase brain activity under the magnetic field. Repetitive transcranial magnetic stimulation (rTMS) is an FDA approved treatment for depression, and is used commonly to treat people for their depression. The rTMS treatment regime used in this study is different from the FDA approved treatment because you will receive up to ten treatments per day over five days instead of the FDA approved rTMS treatment regime of 25 treatments over 25 days. This sort of accelerated or high dose protocol has been shown to be safe and effective in the treatment of depression. We are hoping to find out if this treatment can be used as a treatment for improving cognitive function and stress resilience.

Being tested
rTMS
Keywords
cognition, adult, prefrontal cortex, Transcranial Magnetic Stimulation, Stress, Psychological, memory, attention
Medical subject headings
Fractures, Stress, Stress, Psychological

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • rTMSDevice

    Device: Repetitive Transcranial Magnetic Stimulation (rTMS) MagVenture MagPro TMS System would be utilized to deliver 3-minute sessions of intermittent theta burst to left dorsolateral prefrontal cortex.

Study groups in NCT04123496
Study groupRoleWhat they receive
Dose 1ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 1 is 5 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 2ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 2 is 10 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 3ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 3 is 15 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 4ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 4 is 20 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 5ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 5 is 25 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 6ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 6 is 30 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 7ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 7 is 35 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 8ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 8 is 40 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 9ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 9 is 45 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS
Dose 10ExperimentalAll participants will be randomized to one of 10 doses of accelerated rTMS. All doses are active and within established therapeutic levels of rTMS. Dose 10 is 50 sessions of 600 pulses at 120% of resting motor threshold. Intermittent theta burst triplets at 50 Hz for 2 seconds and repeated every 10 seconds for a total of 190 seconds.
Receives: Device: rTMS

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Score of Neurocognitive Performance (Fluid Cognition)

    Participants would complete a computerized batteries (Penn Computerized Neuropsychological Battery and NIH Cognition Battery). Tasks would assess the following domains: information-processing speed, executive function, sustained attention/vigilance, verbal memory, working-memory capacity, inhibition/impulsivity, and sensorimotor function. This composite includes all the tests noted above that are fluid ability measures: Flanker, Dimensional Change Card Sort, Picture Sequence Memory, List Sorting and Pattern Comparison. This composite score is derived by averaging the standard scores of each of the measures, and then deriving standard scores based on this new distribution. Higher values (positive changes from baseline) indicate better performance. The T-score has a mean of 50 in the general population and a SD of 10. Scores higher than the mean indicate better performance.

    Measured: Baseline (Day 1)

  2. Change From Baseline in Neurocognitive Performance at 1 Week Post Treatment (Fluid Cognition)

    Participants would complete a computerized batteries (Penn Computerized Neuropsychological Battery and NIH Cognition Battery). Tasks would assess the following domains: information-processing speed, executive function, sustained attention/vigilance, verbal memory, working-memory capacity, inhibition/impulsivity, and sensorimotor function. This composite includes all the tests noted above that are fluid ability measures: Flanker, Dimensional Change Card Sort, Picture Sequence Memory, List Sorting and Pattern Comparison. This composite score is derived by averaging the standard scores of each of the measures, and then deriving standard scores based on this new distribution. The T-score has a mean of 50 in the general population and a SD of 10. Scores higher than the mean indicate better performance.

    Measured: Post-treatment (within 1 week of completing rTMS)

  3. Change From Baseline in Neurocognitive Performance at 1 Month Post Treatment (Fluid Cognition)

    Participants would complete a computerized batteries (Penn Computerized Neuropsychological Battery and NIH Cognition Battery). Tasks would assess the following domains: information-processing speed, executive function, sustained attention/vigilance, verbal memory, working-memory capacity, inhibition/impulsivity, and sensorimotor function. This composite includes all the tests noted above that are fluid ability measures: Flanker, Dimensional Change Card Sort, Picture Sequence Memory, List Sorting and Pattern Comparison. This composite score is derived by averaging the standard scores of each of the measures, and then deriving standard scores based on this new distribution. The T-score has a mean of 50 in the general population and a SD of 10. Scores higher than the mean indicate better performance.

    Measured: Post-treatment (within 1 month of completing rTMS)

Secondary outcomes (15)
  1. Mean Score of Stress Resilience as Assessed by Connor Davidson Resilience Scale

    Participants would complete a series of questionnaires Connor Davidson Resilience Scale is a self-reported scale consisting of 10-items measuring resilience. Respondents rate items on a 5-point Likert scale, ranging from 0 (not true at all) to 4 (true nearly all the time). Each item has a minimum score of 0 and a maximum score of 4. The minimum value is a 0 and the maximum value is a 100. A higher score indicates higher resilience, which indicates a better outcome.

    -Questions are rated on a scale from 0-4, where a higher score reflects greater resilience.

    Measured: Baseline (Day 1)

  2. Mean Score of Stress Resilience as Assessed by Perceived Stress Scale-10

    The investigators will use the Perceived Stress Scale 10 (PSS-10) to assess perceived stress using a 5-point Likert scale.

    Scoring Instructions: Total score is determined by adding together the scores of each of the four items. Questions 2 and 3 are reverse coded. Questions 1 and 4: 0 = Never; 1 = Almost never; 2 = Sometimes; 3 = Fairly often; 4 = Very often Questions 2 and 3: 4 = Never; 3 = Almost never; 2 = Sometimes; 1 = Fairly often; 0 = Very often.

    Scores range from 0 to 40 with higher scores indicating more stress.

    Measured: Baseline (Day 1)

  3. Mean Score of Stress Resilience as Assessed by Inventory of Depression and Anxiety Symptoms-II

    The Inventory of Depression and Anxiety Symptoms-II (IDAS-II) is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely").

    In this study, a composite score was calculated by summing responses across multiple relevant subscales (e.g., Dysphoria, Panic, Insomnia, Well-Being) to assess overall emotional distress and stress resilience.

    Minimum possible score: 99 (if all items scored 1) Maximum possible score: 495 (if all items scored 5) Higher scores indicate greater symptom severity and worse outcomes. Lower scores reflect better emotional functioning and greater resilience.

    Measured: Baseline (Day 1)

  4. Mean Score of Stress Resilience as Assessed by Connor Davidson Resilience Scale

    The Connor Davidson Resilience Scale (CD-RISC 10) is a unidimensional self-reported scale consisting of 10-items measuring resilience. Respondents rate items on a 5-point Likert scale, ranging from 0 (not true at all) to 4 (true nearly all the time). Each item has a minimum score of 0 and a maximum score of 4. The minimum value is a 0 and the maximum value is a 100. A higher score indicates higher resilience, which indicates a better outcome.

    Measured: Post-treatment (within 1 week of completing rTMS)

  5. Mean Score of Stress Resilience as Assessed by Perceived Stress Scale-10

    The investigators will use the Perceived Stress Scale 10 (PSS-10) to assess perceived stress using a 5-point Likert scale.

    Scoring Instructions: Total score is determined by adding together the scores of each of the four items. Questions 2 and 3 are reverse coded. Questions 1 and 4: 0 = Never; 1 = Almost never; 2 = Sometimes; 3 = Fairly often; 4 = Very often Questions 2 and 3: 4 = Never; 3 = Almost never; 2 = Sometimes; 1 = Fairly often; 0 = Very often.

    Scores range from 0 to 40 with higher scores indicating more stress.

    Measured: Post-treatment (within 1 week of completing rTMS)

  6. Mean Score of Stress Resilience as Assessed by Inventory of Depression and Anxiety Symptoms-II

    The Inventory of Depression and Anxiety Symptoms-II (IDAS-II) is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely").

    In this study, a composite score was calculated by summing responses across multiple relevant subscales (e.g., Dysphoria, Panic, Insomnia, Well-Being) to assess overall emotional distress and stress resilience.

    Minimum possible score: 99 Maximum possible score: 495 Higher scores indicate greater symptom severity and worse outcomes. Lower scores reflect better emotional functioning and greater resilience.

    Measured: Post-treatment (within 1 week of completing rTMS)

  7. Mean Score of Stress Resilience as Assessed by Connor Davidson Resilience Scale

    The Connor Davidson Resilience Scale (CD-RISC 10) is a unidimensional self-reported scale consisting of 10-items measuring resilience. Respondents rate items on a 5-point Likert scale, ranging from 0 (not true at all) to 4 (true nearly all the time). Each item has a minimum score of 0 and a maximum score of 4. The minimum value is a 0 and the maximum value is a 100. A higher score indicates higher resilience, which indicates a better outcome.

    Measured: Post-treatment (within 1 month of completing rTMS)

  8. Mean Score of Stress Resilience as Assessed by Perceived Stress Scale-10

    The investigators will use the Perceived Stress Scale 10 (PSS-10) to assess perceived stress using a 5-point Likert scale.

    Scoring Instructions: Total score is determined by adding together the scores of each of the four items. Questions 2 and 3 are reverse coded. Questions 1 and 4: 0 = Never; 1 = Almost never; 2 = Sometimes; 3 = Fairly often; 4 = Very often Questions 2 and 3: 4 = Never; 3 = Almost never; 2 = Sometimes; 1 = Fairly often; 0 = Very often.

    Scores range from 0 to 40 with higher scores indicating more stress.

    Measured: Post-treatment (within 1 month of completing rTMS)

  9. Mean Score of Stress Resilience as Assessed by Inventory of Depression and Anxiety Symptoms-II

    The Inventory of Depression and Anxiety Symptoms-II (IDAS-II) is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely").

    In this study, a composite score was calculated by summing responses across multiple relevant subscales (e.g., Dysphoria, Panic, Insomnia, Well-Being) to assess overall emotional distress and stress resilience.

    Minimum possible score: 99 Maximum possible score: 495 Higher scores indicate greater symptom severity and worse outcomes. Lower scores reflect better emotional functioning and greater resilience.

    Measured: Post-treatment (within 1 month of completing rTMS)

  10. Mean Score of Neurocognitive Performance (WINSCAT Composite)

    The WINSCAT battery includes 5 subtests: Code Substitution (CDS), Code Substitution Delayed Recognition (CDD), Delayed Matching to Sample (MSP), Mathematical Processing (MTH), and Running Memory Continuous Performance (CPT). Each subtest produces a standardized score (range: 0-100). Composite score is the sum of all subtests (range: 0-500). Higher scores indicate better cognitive performance. Baseline scores reflect initial neurocognitive status. WINSCAT assesses attention, memory, visual processing, and executive function.

    Measured: Baseline (Day 1)

  11. Mean Score of Neurocognitive Performance (WINSCAT Composite)

    The WINSCAT battery includes 5 subtests: Code Substitution (CDS), Code Substitution Delayed Recognition (CDD), Delayed Matching to Sample (MSP), Mathematical Processing (MTH), and Running Memory Continuous Performance (CPT). Each subtest produces a standardized score (range: 0-100). Composite score is the sum of all subtests (range: 0-500). Higher scores indicate better cognitive performance. This measure reflects post-treatment neurocognitive status following rTMS. Scores are compared to baseline to assess improvement. WINSCAT evaluates attention, memory, visual processing, and executive function.

    Measured: Post-treatment (within 1 week of completing rTMS)

  12. Mean Score of Neurocognitive Performance (WINSCAT Composite)

    The WINSCAT battery includes 5 subtests: Code Substitution (CDS), Code Substitution Delayed Recognition (CDD), Delayed Matching to Sample (MSP), Mathematical Processing (MTH), and Running Memory Continuous Performance (CPT). Each subtest produces a standardized score (range: 0-100). Composite score is the sum of all subtests (range: 0-500). Higher scores indicate better cognitive performance. This measure reflects neurocognitive status 1 month after rTMS treatment. Scores are compared to baseline and 1-week post-treatment to assess sustained or enhanced cognitive improvement. WINSCAT evaluates attention, memory, visual processing, and executive function.

    Measured: Post-treatment (within 1 month of completing rTMS)

  13. Mean Score of Neurocognitive Performance (Stress Total Score)

    is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. For this outcome, a subset of items was used to assess stress resilience, likely drawn from the Well-Being or related subscales.

    Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely"). Scores were summed across selected items.

    Minimum possible score: 0 Maximum possible score: 15 Lower scores indicate greater resilience and better emotional functioning. Higher scores indicate greater symptom severity and worse outcomes.

    Measured: Baseline (Day 1)

  14. Mean Score of Neurocognitive Performance (Stress Total Score)

    is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. For this outcome, a subset of items was used to assess stress resilience, likely drawn from the Well-Being or related subscales.

    Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely"). Scores were summed across selected items.

    Minimum possible score: 0 Maximum possible score: 15 Lower scores indicate greater resilience and better emotional functioning. Higher scores indicate greater symptom severity and worse outcomes.

    Measured: Post-treatment (within 1 week of completing rTMS)

  15. Mean Score of Neurocognitive Performance (Stress Total Score)

    is a 99-item self-report questionnaire assessing emotional and psychological symptoms across 18 subscales. For this outcome, a subset of items was used to assess stress resilience, likely drawn from the Well-Being or related subscales.

    Each item is rated on a 5-point Likert scale from 1 ("Not at all") to 5 ("Extremely"). Scores were summed across selected items.

    Minimum possible score: 0 Maximum possible score: 15 Lower scores indicate greater resilience and better emotional functioning. Higher scores indicate greater symptom severity and worse outcomes.

    Measured: Post-treatment (within 1 month of completing rTMS)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Oct 2019
  2. Study start21 Nov 2019
  3. Primary completion27 Sep 2021
  4. Study completion27 Oct 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
38 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04123496
Sponsor's protocol ID
00084982
Status last verified
Sep 2025
First submitted
9 Oct 2019
Last updated
16 Oct 2025
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing rTMS in people with Cognition and Stress Reaction, run by Medical University of South Carolina at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Oct 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Score of Neurocognitive Performance (Fluid Cognition) (time frame: Baseline (Day 1)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Oct 2025.

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