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Generalized Anxiety DisorderNCT04901481

Empower Neuromodulation System - Pilot Study for Anxiety Treatment

A study testing Empower Neuromodulation System in people with Generalized Anxiety Disorder, run by Theranova, L.L.C. at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study evaluates the effects of peripheral nerve stimulation on anxiety levels in participants with Generalized Anxiety Disorder (GAD). This is a pilot investigation in which participants will randomized (1:1) to the active or sham treatment. Read more about this study

Who is it for?
Ages 19 years and older
Conditions the study is for
Generalized Anxiety Disorder
What is being tested?
Empower Neuromodulation System
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
18 participants
Where
1 siteUnited States
Study dates
17 Sep 2021to 17 May 2023
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 19 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • ≥19 years old
  • Current diagnosis of GAD per DSM-5 via M.I.N.I. assessment by clinician
  • Hamilton Anxiety Rating Scale (HAM-A) ≥18
  • Negative urine pregnancy test at screening (females only)
  • Able to provide informed consent
  • Capable and willing to follow all study-related procedures

Who cannot join

  • Has current (past 30 days) psychotic or bipolar disorder, homicidal ideation, psychiatric hospitalization, or moderate/severe substance use disorders per clinician assessment via M.I.N.I.
  • Hamilton Depression Rating Scale (HAM-D) ≥18
  • PTSD Checklist for DSM-5 (PCL-5) ≥51
  • Exhibits suicidal intent as confirmed on the Columbia-Suicide Severity Rating Scale-Revised (C-SSRS-R) with a "Yes" response to question 4 or question 5 or to question 6 in the past 3 months.
  • Changes in psychoactive medications in the past 30 days (including but not limited to psychotropic medications, thyroid hormone medication, steroids), with the exception of benzodiazepines
  • If regularly taking benzodiazepines, has had changes in benzodiazepine dosing in the past 30 days or average use >2 days per week
Show all 17Show fewer
  • Psychotherapy was initiated or discontinued in the past 30 days or psychotherapy modality was changes in the past 30 days
  • Has a history of epilepsy or a seizure disorder
  • Has been diagnosed with peripheral nerve damage of the arm or hand or has numbness or tingling in the arm or hand at least weekly
  • Is currently pregnant or breastfeeding, has been pregnant within the past 6 months or intends to become pregnant during the study period
  • Currently has an active implant and/or an electrical or neurostimulator device, including but not limited to cardiac pacemaker or defibrillator, vagal neurostimulator, deep brain stimulator, spinal stimulator, sacral stimulator, bone growth stimulator, or cochlear implant
  • Has an electrically conductive metal object (e.g. jewelry) that cannot be removed from the upper extremities and will directly contact the gel electrodes of the Empower Neuromodulation System at the active or sham anatomic location
  • Has an open incision, wound, scar, active infection or otherwise compromised skin that will directly contact the gel electrodes of the Empower Neuromodulation System at either the active or sham anatomic location
  • Does not have daily access to an electrical outlet for charging the investigational device and associated smartphone
  • Has used of an investigational drug/device therapy within the past four weeks
  • Unable to provide informed written consent
  • Has any medical condition that would, in the opinion of the investigator, make the participant ineligible

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198-5575

Other trials in United States

About this study

Official title: Pilot Evaluation of the Empower Neuromodulation System for Anxiety Treatment

This study evaluates the effects of peripheral nerve stimulation on anxiety levels in participants with Generalized Anxiety Disorder (GAD). This is a pilot investigation in which participants will randomized (1:1) to the active or sham treatment.

Read the detailed description

Generalized anxiety disorder (GAD) is a chronic, recurring condition that affects approximately 6.4 million American adults each year. GAD is one of the most common anxiety disorders and is costly to treat. First-line treatments for GAD include medication (e.g. SSRIs, SNRIs), cognitive behavioral therapy, or both in combination. Peripheral nerve stimulation via acupuncture has been shown to directly decrease clinical anxiety scores. The investigators have developed the Empower Neuromodulation System, a non-invasive, portable transcutaneous electrical nerve stimulation (TENS) device intended to stimulate peripheral nerves for the treatment of anxiety. In this study, a randomized, controlled study will be conducted in participants with GAD. Participants will self-administer twice daily treatments with the Empower device. In this pilot study, the primary endpoints will be feasibility and acceptability, with safety and effectiveness evaluated as exploratory endpoints.

Being tested
Empower Neuromodulation System
Medical subject headings
Generalized Anxiety Disorder

What participants receive

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

  • Empower Neuromodulation SystemDevice

    Peripheral nerve stimulation with the Empower device. The active and sham treatments only differ by the location of application on the body.

Study groups in NCT04901481
Study groupRoleWhat they receive
Active treatmentExperimentalParticipants will self-administer treatment with the Empower device at the active treatment anatomic location twice daily for six weeks. Treatment adherence will be assessed and participants will complete surveys to evaluate the feasibility and acceptability Empower active treatment.
Receives: Device: Empower Neuromodulation System
Sham treatmentSham comparatorParticipants will self-administer treatment with the Empower device at the sham treatment anatomic location twice daily for six weeks. Treatment adherence will be assessed and participants will complete surveys to evaluate the feasibility and acceptability Empower sham treatment.
Receives: Device: Empower Neuromodulation System

What is being measured

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

  1. Treatment Adherence

    Feasibility as assessed via treatment adherence (treatment sessions administered as a percentage of total possible) for each participant

    Measured: 6 weeks

  2. Usability

    Acceptability as assessed via a usability assessment (System Usability Scale (SUS)). For the SUS, the score range is 0 to 100, with a higher score indicating the stimulation system's better usability. The survey includes 10 questions in which statements about the system are rated from "Strongly disagree" up to "Strongly agree".

    Measured: 6 weeks

Secondary outcomes (5)
  1. Effective Nerve Stimulation

    The percentage of treatment sessions that provide effective nerve stimulation as assessed via participant-reported confirmation of tingling sensation

    Measured: 6 weeks

  2. Satisfaction With Treatment

    The overall satisfaction with treatment (via 100-mm Visual-Analog Scale (VAS)). For the VAS, the score range is 0 to 100, with a higher scoring meaning higher satisfaction.

    Measured: 6 weeks

  3. Number of Participants With Device-related Adverse Events

    Safety assessment via device-related adverse events

    Measured: 6 weeks

  4. Change in Hamilton Anxiety Rating Scale (HAM-A) Score From Baseline to 6weeks

    Anxiety severity evaluation via clinician-administered Hamilton Anxiety Rating Scale (HAM-A) score. For the HAM-A, the score range is 0 to 56, with a higher scoring meaning more severe anxiety.

    Measured: 6 weeks

  5. Change in Participant-reported Beck Anxiety Inventory (BAI) Score From Baseline to 6 Weeks

    Anxiety severity evaluation via participant-reported Beck Anxiety Inventory (BAI) score from Baseline to 6 weeks. For the BAI, the score range is 0 to 63, with a higher scoring meaning more severe anxiety.

    Measured: 6 weeks

Timeline

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

  1. First posted25 May 2021
  2. Study start17 Sep 2021
  3. Primary completion28 Jul 2022
  4. Study completion17 May 2023

Why it stopped: Unable to fully enroll study.

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
Randomised
Intervention model
Parallel groups
Model description
At enrollment, participants will be randomized (1:1) to receive either the active or sham treatment for the duration of the 6-week study.
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04901481
Sponsor's protocol ID
CRD-12-1396-01
Other IDs
R43AT011497
Status last verified
Apr 2024
First submitted
19 May 2021
Last updated
20 Jun 2024
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Bang, Heejung et al. "Blinding assessment in clinical trials: A review of statistical methods and a proposal of blinding assessment protocol." Clinical Research and Regulatory Affairs 27 (2010): 42 - 51.

Questions about this trial

What is this clinical trial studying?

A study testing Empower Neuromodulation System in people with Generalized Anxiety Disorder, run by Theranova, L.L.C. 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 6 inclusion and 17 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: stopped early, as of the sponsor's last update on 20 Jun 2024. 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. Some participants in this study may receive a placebo. 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 20 Jun 2024). 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?

Treatment Adherence (time frame: 6 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04901481, which also lists 1 linked publication.

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 20 Jun 2024.

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