Auricular Transcutaneous Electrical Nerve Stimulation Treatment of Autism

July 16, 2026 updated by: Jian Kong, Massachusetts General Hospital
In this study, investigators will examine the treatment effects of transcutaneous electrical nerve stimulation with different stimulation frequencies on individuals with autism.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

In this study, investigators will examine the treatment effect of transcutaneous electrical nerve stimulation at auricular area with vagus nerve distribution on high-functioning individuals with autism. Specifically, investigators will choose two ear acupoints: heart and shenmen. Participants will be randomized to either 1 Hz or 20 Hz tVNS group (up to 5 times per week) for three weeks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Massachusetts
      • Charlestown, Massachusetts, United States, 02129

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 56 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Autism diagnosed based on DSM-V classification criteria
  2. 18-60 year old high functioning adult autism patients (e.g. Asperger's, IQ equal or greater than 80)
  3. Subjects who do not show aggressive behaviors based on neuro/psychiatric evaluations as determined by a licensed study physician.

Exclusion Criteria:

  1. A history of chronic serious infection, any current infection, any type of cancer or autoimmune disease or other severe diseases;
  2. Subjects taking any medications that confound the study results

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 1 Hz group
1 Hz Auricular transcutaneous electrical nerve stimulation High-functioning individuals with autism randomized to this group will receive 1 Hz tVNS stimulation for 30 minutes/day up to 5 times/week for 3 weeks.
Other: 1 Hz Auricular transcutaneous electrical nerve stimulation
High-functioning individuals with autism randomized to this group will receive 1 Hz tVNS stimulation for 30 minutes/day up to 5 times/week for 3 weeks.
Active Comparator: 20 Hz group
20 Hz Auricular transcutaneous electrical nerve stimulation High-functioning individuals with autism randomized to this group will receive 20 Hz tVNS stimulation for 30 minutes/day up to 5 times/week for 3 weeks.
Other: 20 Hz Auricular transcutaneous electrical nerve stimulation
High-functioning individuals with autism randomized to this group will receive 1 Hz tVNS stimulation for 30 minutes/day up to 5 times/week for 3 weeks.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Autism Treatment Evaluation Checklist (ATEC)
Time Frame: Baseline and after 3-week treatment
ATEC will be reported by investigator in a total and for each of the 4 subscales as follows: (1) speech/language/communication subscale; (2) social subscale; (3) sensory and cognitive awareness subscale; and (4) health / physical / behavior problem subscale. The total score ranges from 0 to 179; a higher score indicated worsening while a lower score indicated improvement.
Baseline and after 3-week treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Aberrant Behavior Checklist (ABC)
Time Frame: Baseline and after 3-week treatment
The factors of the ABC have been labeled as follows: (I) Irritability, Agitation, Crying; (II) Lethargy, Social Withdrawal; (III) Stereotypic Behavior; (IV) Hyperactivity, Noncompliance; and (V) Inappropriate Speech.
Baseline and after 3-week treatment
Change in Clinical Global Impression-Improvement (CGI-I)
Time Frame: Baseline and after 3-week treatment
Overall improvement in autism will be assessed using the Clinical Global Impression-Improvement (CGI-I) scale, a 7-point scale from 1 = very much improved to 7 = very much worse.
Baseline and after 3-week treatment
Change in PROMIS Sleep Disturbance Short Form
Time Frame: Baseline and after 3-week treatment
This questionnaire is used to assess the pure domain of sleep disturbance in adults.
Baseline and after 3-week treatment
Change in Penn State Worry Questionnaire
Time Frame: Baseline and after 3-week treatment
This is the standard assessment of worry and consists of 16 questions rated from 1 to 5 from "Not typical of me" to "Very typical of me".
Baseline and after 3-week treatment
Change in Sleep Quality Assessment (PSQI)
Time Frame: Baseline and after 3-week treatment
The Pittsburgh Sleep Quality Index (PSQI) is an effective instrument used to measure the quality and patterns of sleep in adults. It differentiates "poor" from "good" sleep quality by measuring seven areas (components): subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction over the last week.
Baseline and after 3-week treatment
PROMIS-29
Time Frame: Baseline and after 3-week treatment
The PROMIS-29 assesses pain intensity, physical function, depression, anxiety, fatigue, sleep disturbance, interference, and social role and activity in the past 7 days
Baseline and after 3-week treatment
EEG (optional)
Time Frame: Baseline and after 3-week treatment
Resting state EEG (filter 1-50 Hz) will be collected
Baseline and after 3-week treatment
Salivary oxytocin quantification (optional)
Time Frame: Baseline and after 3-week treatment
A total of 4-mL of unstimulated saliva will be collected
Baseline and after 3-week treatment
Quantification of species-level L. reuteri abundance in human stool samples (optional)
Time Frame: Baseline and after 3-week treatment
Stool samples will be collected at home following our provided instructions.
Baseline and after 3-week treatment
Autonomic measurements via wristband photoplethysmograph (PPG) sensor (optional)
Time Frame: Baseline and after 3-week treatment
6 minutes PPG data will be collected
Baseline and after 3-week treatment
ECG (optional)
Time Frame: Baseline and after 3-week treatment
6 minutes raw ECG data will be collected for Heart rate variability (HRV) analysis
Baseline and after 3-week treatment
Pulse oximetry measurements (optional)
Time Frame: Baseline and after 3-week treatment
SpCO will be measured at different time points
Baseline and after 3-week treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Massachusetts General Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jian Kong, MGH

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2022

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 28, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 28, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 28, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 31, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 4, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 17, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 16, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2017P000894

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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