ClinicalTrials.gg
RecruitingNCT07819630Updated Sep 15, 2026

Electroencephalogram Changes Induced by Transcutaneous Electrical Acupoint Stimulation

An interventional study of Transcutaneous electrical acupoint stimulation in Postoperative Pain, sponsored by Beijing Chao Yang Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-09-15.

Sponsored by Beijing Chao Yang Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 248 studies in Pain, Postoperative with a site in China — 78 open to participants now, 80 under way, 3 of them phase 3. Pain, Postoperative · China.

Planned enrollment
144th of 205
90 · median 132
Started
2026
with 34 others
No phase
103 of 248
36 open now
Primary completion
2027-02
later than 55 of 79 live
Registered
243rd of 248
by date

Among the 248 studies in Pain, Postoperative with a site in China, this one is the 144th largest by planned enrollment of the 205 interventional ones that give a count, is one of 35 that started in 2026, is one of 103 with no phase, reaches primary completion later than 55 of the 79 other live ones, and was the 243rd registered.

Pain, Postoperative

5,644 studies on the registry are indexed under Pain, Postoperative; 1,229 are open to participants now.

Browse Pain, Postoperative studies →

Open to participants now

78 of the 248 studies in Pain, Postoperative with a site in China are open now. Recruiting first, the newest first:

72 more — sign in →

All 78 open studies →

A study can be open while its sites in China have not opened yet or have stopped. Only those recruiting at a site in China →

Who these studies take

Of the 678 Pain, Postoperative studies recruiting now, 241 (36%) set no upper age limit and 328 (48%) stop at 75 or younger; 74 take children under 18; 128 take healthy volunteers.

This study: 18 Years to 80 Years · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 248 studies in Pain, Postoperative with a site in China, or all of them as a file.
02

Study summary

A total of 90 subjects underwent abdominal surgery under general anesthesia at Chaoyang Hospital in Beijing. The subjects were divided into a percutaneous acupoint electrical stimulation group and a control group. The subjects were selected for TEAS stimulation at the Neiguan, Hegu, and Zusanli acupoints on both sides, and EEG data were collected using a 32 lead EEG cap test throughout the entire process. During the experiment, changes in hemodynamic parameters (blood pressure, heart rate) and perioperative pain scores of the subjects will be recorded.

03

Conditions studied

  • Postoperative Pain

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04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:1. Age between 18 and 80 years; 2. classification I-II; 3. Scheduled to undergo abdominal surgery under general anesthesia (e.g., gastrectomy, colorectal cancer surgery, etc.); 4. Consent to participate in the study and signing of the form.

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Exclusion Criteria:1. Impaired cognitive function or language communication disorders; 2. Mental disorders, epilepsy, or abnormal EEG activity; 3. Receipt of acupoint therapy within two weeks prior to surgery; 4. Presence of a cardiac pacemaker or metal implants; 5. Allergy to surface electrodes; 6. Concomitant medical conditions (e.g., dermatological disorders) that may affect treatment or trial administration.

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Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
90 participants (estimated)

Study arms

  • Experimental
    Transcutaneous electrical acupoint stimulation group

    Group description: Participants in the reorganization will receive TEAS stimulation at bilateral Neiguan, Hegu, and Zusanli acupoints, and EEG data will be collected throughout the entire process using a 32 lead EEG cap test. During the experiment, changes in hemodynamic parameters (blood pressure, heart rate) and perioperative pain scores of the subjects will be recorded.

    Device: Transcutaneous electrical acupoint stimulation

  • No intervention
    Control group

    Attach electrodes to the same area but do not apply stimulation, while informing the patient that percutaneous acupoint electrical stimulation therapy has been performed

Interventions

  • DeviceTranscutaneous electrical acupoint stimulation

    Group description: Participants in this group will receive TEAS stimulation at the bilateral Neiguan, Hegu, and Zusanli acupoints 30 minutes before the start of the surgery, and their EEG data will be collected throughout the entire process using a 32 lead EEG cap test. During the experiment, the changes in hemodynamic parameters (blood pressure, heart rate) of the subjects during surgery will be recorded, as well as the perioperative pain scores of the subjects at 1 hour and 24 hours after surgery.

06

What researchers measure

Primary outcomes

  1. Electroencephalogram analysis

    Changes in EEG in the experimental group with transcutaneous electrical acupoint stimulation compared to the baseline, as well as post - operative EEG changes in the experimental group and the control group.Including:node clustering coefficient,node efficiency,normalized mean clustering coefficient,normalized path length,modularity,small-world network

    Time frame: Five - minute baseline EEG data with eyes closed during wakefulness;EEG data during pre - operative transcutaneous electrical acupoint stimulation;Immediate post - operative EEG data

Secondary outcomes

  1. Patients' VAS score

    Patients' VAS scores24 hours after surgery

    Time frame: 24 hours after surgery

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Oct 2026; primary completion for Feb 2027, 3 months later.

Of 2,094 non-industry interventional studies with no phase under Pain, Postoperative, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 23. This study's planned 3 months is below that.

Counting every sponsor, half of 2,107 studies reached it within 11 months; a quarter within 6 and three quarters within 23.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 6, 2026
First posted
Sep 15, 2026
StartEst.
Oct 31, 2026
Primary completionEst.
Feb 28, 2027
CompletionEst.
Mar 30, 2027
Last update
Sep 15, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07819630
Responsible party
Sponsor
First posted
Sep 15, 2026
Start date
Oct 31, 2026 (estimated)
Primary completion
Feb 28, 2027 (estimated)
Completion
Mar 30, 2027 (estimated)
Last update
Sep 15, 2026

Study contacts

Wei
Contact
changwei.wei@ccmu.edu.cn
 +86 13810678936

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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