Efficacy and Safety of Electroacupuncture Through Nerve Stimulation in Patients With Anxiety Disorders: Protocol for a Randomized, Assessor-Blind, Three-Arm, Parallel-Group Clinical Trial
Bibliographic record
Abstract
BACKGROUND: Anxiety disorders are among the most common mental health disorders, affecting a significant portion of the population. However, conventional treatments, such as pharmacotherapy and psychotherapy, often have limited effectiveness and may lead to undesirable side effects. Consequently, there is a growing demand for new alternative treatments for anxiety disorders. Recent studies suggest that electroacupuncture may demonstrate therapeutic effects in managing anxiety by mediating nerve stimulation. OBJECTIVE: This study is designed to assess the efficacy and safety of electroacupuncture in treating anxiety disorders through nerve stimulation. Specifically, it will involve stimulating the median nerve at the PC6 acupoint (Neiguan) and the vagus nerve at the TF4 acupoint (Shenmen of ear acupuncture). METHODS: This study is a randomized, assessor-blind, three-arm, parallel-group clinical trial comprising the PC6 electroacupuncture group, TF4 electroacupuncture group, and a control group. Participants will include patients diagnosed with social anxiety disorder, panic disorder, agoraphobia, and generalized anxiety disorder. Eligible participants will be randomly assigned to one of the 3 groups, with each group containing 20 individuals. The electroacupuncture groups will receive treatments at the designated acupoints twice weekly for 8 weeks, totaling 16 sessions. The control group will receive usual care without any treatment interventions through the end of the study period. The primary outcome is the comparison of Hamilton Anxiety Rating Scale scores between the treatment groups and the control group. Secondary outcomes include scores on the Hamilton Anxiety Rating Scale, Beck Anxiety Inventory, Beck Depression Inventory-II, Patient Health Questionnaire-15, World Health Organization Quality of Life Assessment Instrument abbreviated version, Penn State Worry Questionnaire, Panic Disorder Severity Scale, and Leibowitz Social Anxiety Scale. Safety evaluation variables include the frequency of adverse events, vital signs, and suicide risk assessment. Exploratory variables include performance on the Emotional Reactivity Test, empathy quotient, and heart rate variability. RESULTS: The first participant was enrolled on December 15, 2022. As of October 2024, a total of 60 participants have been fully registered, and the intervention is currently in progress. We expect the completion of this trial to occur within the year 2025. CONCLUSIONS: In this study, we will evaluate the safety and efficacy of electroacupuncture for anxiety disorders. By elucidating the therapeutic mechanisms of electroacupuncture through nerve stimulation, this study will provide clinical evidence to support the development of potential interventions for patients with anxiety disorders. TRIAL REGISTRATION: Clinical Research Information Service of the Republic of Korea KCT0008378; https://cris.nih.go.kr/cris/search/detailSearch.do/24503. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/68166.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.029 | 0.024 |
| Meta-epidemiology (narrow) | 0.007 | 0.003 |
| Meta-epidemiology (broad) | 0.012 | 0.005 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.004 | 0.004 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.004 | 0.002 |
| Research integrity | 0.008 | 0.008 |
| Insufficient payload (model declined to judge) | 0.048 | 0.010 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".