Trial · NCT07899957
Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) for Insomnia During the Withdrawal-Rehabilitation Period of Methamphetamine Use Disorder
NCT07899957, Not applicable, Not yet recruiting, The First Affiliated Hospital of Zhejiang Chinese Medical University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) for Insomnia During the Withdrawal-Rehabilitation Period of Methamphetamine Use Disorder. Trials, record NCT07899957. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07899957
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) for Insomnia During the Withdrawal-Rehabilitation Period of Methamphetamine Use Disorder
- NCT number
- NCT07899957
- Status
- Not yet recruiting
- Phases
- Not applicable
- Enrollment
- 96 participants, estimated
- Lead sponsor
- The First Affiliated Hospital of Zhejiang Chinese Medical University
- Conditions
- Insomnia
- Interventions
- taVNS, sham-taVNS
- First posted
- 2026-10-28
- Last updated
- 2026-10-28
Source ClinicalTrials.gov
Registered outcomes18
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Insomnia Severity Index | Day 0 ，Week 1 ，Week 2 ，Week 3，Week 4 | Total score ranges from 0 to 28, with higher scores indicating greater insomnia severity. |
| Secondary | Pittsburgh Sleep Quality Index | Day 0 ，Week 1 ，Week 2 ，Week 3，Week 4 | Sleep quality assessed using the Pittsburgh Sleep Quality Index (PSQI). Total score ranges from 0 to 21; higher scores indicate poorer sleep quality. |
| Secondary | Sleep Diary | Day 0 ，Week 1 ，Week 2 | Bedtime, sleep onset latency, number and duration of nocturnal awakenings, early morning awakening, total sleep time, sleep efficiency, and morning mental status were recorded. |
| Secondary | 17-item Hamilton Depression Rating Scale | Day 0, Week 4, Week 8 | The 17-item Hamilton Depression Rating Scale (HAMD-17) is a clinician-rated scale for assessing the severity of depressive symptoms. It contains 17 items, with a total score ranging from 0 to 52. Higher scores indicate more severe depressive symptoms. |
| Secondary | Hamilton Anxiety Scale | Day 0, Week 4, Week 8 | The Hamilton Anxiety Scale (HAMA) is a 14-item clinician-rated scale to assess the severity of anxiety symptoms. Each item is scored from 0 to 4. The total score ranges from 0 to 56, with higher scores indicating more severe anxiety symptoms. |
| Secondary | Fatigue Severity Scale | Day 0, Week 4, Week 8 | The Fatigue Severity Scale (FSS) is a 9-item self-reported questionnaire for assessing fatigue severity. Each item is scored on a 7-point Likert scale (1 = strongly disagree, 7 = strongly agree). The total score ranges from 9 to 63, with higher scores indicating more severe fatigue. |
| Secondary | Epworth Sleepiness Scale | Day 0, Week 4, Week 8 | The Epworth Sleepiness Scale (ESS) is an 8-item self-reported questionnaire to assess the degree of daytime sleepiness. Each item is scored from 0 to 3. The total score ranges from 0 to 24, with higher scores indicating more severe daytime sleepiness. |
| Secondary | Drug Craving Visual Analogue Scale | Day 0, Week 4, Week 8 | Drug craving was assessed using the Visual Analogue Scale (VAS). The scale is a single-item self-reported measure for evaluating the intensity of drug craving. Scores range from 0 to 100 (or 0-10), with higher scores indicating stronger drug craving. |
| Secondary | Brief Substance Craving Scale | Day 0, Week 4, Week 8 | Brief Substance Craving Scale (BSCS). Score range: 0-12. Higher scores indicate greater substance craving (worse outcome). |
| Secondary | Chinese Version of the Stimulant Relapse Risk Scale | Day 0, Week 4, Week 8 | Chinese Version of the Stimulant Relapse Risk Scale (SRRS-C). Score range: 18-72. Higher scores indicate higher stimulant relapse risk (worse outcome). |
1 to 10 of 18Source ClinicalTrials.gov
See all 18 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07899957
GET https://conductscience.org/api/trials/v1/NCT07899957/registered