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Generalized Anxiety Disorder (GAD)NCT02708472

Safety and Efficacy of Synchronized Transcranial Magnetic Stimulation for the Treatment of Generalized Anxiety Disorder

A study testing synchronized Transcranial Magnetic Stimulation (sTMS) in people with Generalized Anxiety Disorder (GAD), run by University of Texas Southwestern Medical Center.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This clinical trial is an investigator-initiated open label study designed to evaluate the safety and efficacy of sTMS in subjects with Generalized Anxiety Disorder. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Generalized Anxiety Disorder (GAD)
What is being tested?
synchronized Transcranial Magnetic Stimulation (sTMS)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
1 Apr 2016to 22 Jan 2018
Phase
Interventional
Are there results?
None posted in the registry

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 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • All subjects will be 18 - 65 years of age.
  • Primary Diagnosis of Generalized Anxiety Disorder (GAD) confirmed by structured interview using the Mini International Neuropsychiatric Interview (MINI), version 7, with minimum duration of current episode of 3 months
  • Baseline Hamilton Anxiety (HAM-A) score equal or greater than 18
  • The baseline EEG is of sufficient duration and quality that it can be processed for quantitative analysis.
  • Taking less than or equal to 2 psychotropic medications at a stable dose for a minimum of 2 weeks to remain unchanged throughout duration of study.
  • Subjects are willing and able to adhere to the intensive treatment schedule and all required study visits.

Who cannot join

  • Subjects are unable or unwilling to give informed consent.
  • Primary Diagnosis with the following conditions confirmed by MINI (current unless otherwise stated):
  • GAD secondary to a general medical condition, or substance-induced.
  • History of substance abuse or dependence within the past 6 months (except nicotine and caffeine).
  • Major depressive disorder, bipolar disorder or psychotic disorder (lifetime), including schizoaffective disorder, or major depression with psychotic features in this or previous episodes.
  • Eating disorder (current or within the past year).
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  • Obsessive compulsive disorder (lifetime).
  • Post-traumatic stress disorder (current or within the past year).
  • Attention Deficit Hyperactivity Disorder (ADHD) currently being treated.
  • Subjects meeting criteria for Axis II cluster A or B diagnosis based upon Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision (DSM-IV-TR) criteria, which in the judgment of the Investigator may hinder the subjects in completing the procedures required by the study protocol.
  • Subjects with a clinically defined neurological disorder including, but not limited to:
  • Any condition likely to be associated with increased intracranial pressure.
  • Space occupying brain lesion.
  • Any history of seizure EXCEPT those therapeutically induced by Electroconvulsive Therapy (ECT). Childhood febrile seizures are acceptable and these subjects may be included in the study.
  • History of stroke.
  • Transient ischemic attack within two years.
  • Cerebral aneurysm.
  • Dementia (Montreal Cognition Assessment score less than 23).
  • Parkinson's disease.
  • Huntington's disease.
  • Multiple sclerosis.
  • Increased risk of seizure for any reason, including prior diagnosis of increased intracranial pressure (such as after large infarctions or trauma), or currently taking medication that lowers the seizure threshold.
  • Subjects with any of the following treatment histories:
  • TMS within 4 weeks prior to the screening visit or any prior treatment with sTMS
  • ECT treatment within 1 year prior to the screening visit.
  • Failure to respond to TMS or ECT treatment (i.e., consistent with Antidepressant Treatment History Form confidence level 3 or higher) in this or any previous episode.
  • Lifetime history of treatment with Deep Brain Stimulation (DBS) or Vagus Nerve Stimulation (VNS).
  • Use of any investigational drug or device within 6 months of the screening visit.
  • Subjects are adequately benefiting from current antianxiety medication(s)
  • Significant acute suicide risk as judged by the investigator
  • Cardiac pacemakers, implanted medication pumps, intracardiac lines, or acute, unstable cardiac disease.
  • Intracranial implant (e.g., aneurysm clips, shunts, stimulators, cochlear implants, stents, or electrodes) or any other metal object within or near the head, excluding the mouth, which cannot be safely removed.
  • Clinically significant abnormality or clinically significant unstable medical condition, as indicated by medical history, physical examination, ECG results, or clinical laboratory testing, that in the Investigator's judgment might pose a potential safety risk to the subject or limit interpretation of the trial results, e.g., any uncontrolled thyroid disorders, hepatic, cardiac, pulmonary and renal malfunctioning.
  • Women who are currently pregnant or not using a medically acceptable means of birth control and women who are breastfeeding.
  • Positive urine drug screen for illicit substances. (A positive urine drug screen at screening may be repeated once prior to randomization).
  • Any condition which in the judgment of the Investigator would prevent the subject from completion of the study.

About this study

Official title: Safety and Efficacy of Synchronized Transcranial Magnetic Stimulation (sTMS) for the Treatment of Generalized Anxiety Disorder (GAD) -An Open Label Investigator Initiated Trial

This clinical trial is an investigator-initiated open label study designed to evaluate the safety and efficacy of sTMS in subjects with Generalized Anxiety Disorder.

Read the detailed description

Subjects will receive 5 daily treatments per treatment week for 4 weeks (20 treatments). Patients who do not meet a 50% reduction of Hamilton Anxiety Rating Scale (HAM-A) score (non-responders) at 4 weeks will be offered 2 additional treatment weeks for up to 30 treatments total.

Subjects who qualify for enrollment will be followed and assessed using the: Mini International Neuropsychiatric Interview (MINI) for Axis 1, Montreal Cognitive Assessment (MoCA), Hamilton Anxiety Rating Scale (HAM-A), Hamilton Depression Rating Scale (HAM-D17), Generalized Anxiety Disorder 7-item (GAD-7), and Quick Inventory of Depressive Symptomatology Self Report (QIDS-SR16) patient reported scale. Treatment will be initiated on Day 1 of the study and will be continued for a minimum of 4 and a maximum of 6 weeks.

Being tested
synchronized Transcranial Magnetic Stimulation (sTMS)
Keywords
Generalized Anxiety Disorder, synchronized Transcranial Magnetic Stimulation, Anxiety, Neurostimulation, TMS
Medical subject headings
Generalized Anxiety Disorder, Anxiety Disorders

What participants receive

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

  • synchronized Transcranial Magnetic Stimulation (sTMS)Device

    Subjects who qualify will receive daily active sTMS treatments with the NeoSync, Inc sTMS device. The device includes an EEG recording module and the device uses a proprietary algorithm to determine the individualized alpha frequency (IAF). The IAF obtained during this baseline recording is used throughout the study.

    The device contains three magnets in the sagittal line above the subject's scalp, which rotate along a transverse axis. sTMS stimulation is delivered broadly over the prefrontal and frontal regions of the brain. These magnets rotate to generate a sinusoidal magnetic field set at precisely the average individualized alpha frequency (IAF). Each therapy session lasts 30 minutes.

Study groups in NCT02708472
Study groupRoleWhat they receive
Open-labelExperimentalSubjects who qualify will receive daily active synchronized Transcranial Magnetic Stimulation (sTMS) treatments. Treatment will be initiated on Day 1 of the study. Subjects will come to the clinic for 5 daily treatment sessions for a total of 4 treatment weeks (20 treatment sessions). Treatment will be discontinued at the end of Week 4. Subjects will be clinically evaluated for safety and efficacy at the end of each of the four weekly treatment courses. At the end of Week 4, subjects who have not met the endpoint of 50% reduction in Hamilton Anxiety Rating Scale (HAM-A) score will be eligible to be considered for 2 additional weeks of daily treatment in an extended phase (for a total of 30 treatment sessions).
Receives: Device: synchronized Transcranial Magnetic Stimulation (sTMS)

What is being measured

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

  1. Mean change in score on the Hamilton Anxiety Rating Scale (HAM-A)

    Measured: Baseline to Week 4

Secondary outcomes (4)
  1. Clinical response on the Hamilton Anxiety Rating Scale

    Clinical response defined as greater than or equal to 50% reduction of assessment score

    Measured: Baseline to Week 4

  2. Clinical response on the Generalized Anxiety Disorder 7-item scale (GAD-7)

    Clinical response defined as greater than or equal to 50% reduction of assessment score

    Measured: Baseline to Week 4

  3. Clinical response on the Hamilton Depression Rating Scale (HAM-D17)

    Clinical response defined as greater than or equal to 50% reduction of assessment score

    Measured: Baseline to Week 4

  4. Clinical response on the Quick Inventory of Depressive Symptomatology Self Report (QIDS-SR16)

    Clinical response defined as greater than or equal to 50% reduction of assessment score

    Measured: Baseline to Week 4

Timeline

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

  1. First posted15 Mar 2016 (estimated)
  2. Study start1 Apr 2016 (estimated)
  3. Primary completion1 Apr 2017 (estimated)
  4. Study completion22 Jan 2018 (estimated)

Why it stopped: This study never moved forward due to funding constraints.

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02708472
Sponsor's protocol ID
STU 112015-078
Status last verified
Aug 2018
First submitted
10 Mar 2016
Last updated
14 Aug 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing synchronized Transcranial Magnetic Stimulation (sTMS) in people with Generalized Anxiety Disorder (GAD), run by University of Texas Southwestern Medical Center.

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 6 inclusion and 36 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: withdrawn, as of the sponsor's last update on 14 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

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?

The study was withdrawn before enrolling participants, so there are no results.

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 change in score on the Hamilton Anxiety Rating Scale (HAM-A) (time frame: Baseline to Week 4). 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 14 Aug 2018; AzTrials last refreshed its copy on 8 Nov 2026.

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