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RecruitingNCT06758154Updated Aug 27, 2026

Efficacy and Olfactory Network of Electro-acupuncture for Subjective Cognitive Decline

An interventional study of "TXJN" electro-acupuncture and sham acupuncture in Subjective Cognitive Decline (SCD), sponsored by The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School. Recruiting at 1 site in China. Open to participants aged 55 Years to 79 Years. Per ClinicalTrials.gov, last updated 2026-08-27.

Sponsored by The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2024; still recruiting 1 year 9 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
92
Allocation
Randomized
Ages
55 Years to 79 Years
Sex
All
01

Study summary

Subjective cognitive decline (SCD) is the early diagnosis and treatment window period of Alzheimer's disease (AD), and the identification of SCD individuals who will progress to AD (pSCD) is a research hotspot. Based on olfactory fMRI,previous studies have found that SCD individuals showed damaged entorhinal neural circuits. After follow-up, the incidence of pSCD increased by three times. But,the spatiotemporal characteristics of the entorhinal neural circuits and whether it has the value of individualized prediction and intervention target need to be further studied. Thus, based on multi-center ambispective cohort study at home and abroad, we will (1) build a new paradigm of synchronous fMRI-EEG olfactory task state Oddball experiment, jointly representational similarity analysis, extract spatiotemporal characteristics of neural circuits damage, and discover and verify that the entorhinal neural circuits are vulnerable brain regions; (2) establish the middle fusion model of vulnerable brain region combined with the methods of olfactory task-fMRI activation image generation, functional connectome gradient,etc.; Then, establish late fusion multi-omics multi-task model combined with the new methods of molecularomics such as ultra-deep total proteomics and metabonomics proposed by the research group to accurately identify pSCD; (3) carry out the precise intervention of image-guided "olfactory three-needle" acupuncture with the entorhinal neural circuits as the target. Through clinical RCT research and mouse model, the remodeling mechanism of vulnerable brain regions will be clarified.This project will provide the basis for early diagnosis and treatment of the AD risk population.

02

Conditions studied

  • Subjective Cognitive Decline (SCD)
03

In context

Lead sponsor

The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School is the lead sponsor of 242 studies on the registry; 144 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
55 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Meet the diagnostic criteria for SCD diseases;
  2. 55-79 years old;
  3. ≥8 years of schooling;
  4. Right-handed;
  5. Sign the informed consent.

Exclusion criteria

Exclusion Criteria:

  1. Have received other antidepressant therapy or involved in other clinical trials in the previous 2weeks.
  2. Infarct located in the left DLPFC.
  3. Positive psychiatric history and major trauma exposure history, such as depression, epilepsy, etc., in the past.
  4. Other serious concomitant diseases (aphasia, severe edema, venous thrombosis, arteriosclerosis occlusion, diabetic vascular disease, peripheral neuropathy, spinal lesions, brain trauma, intracranial infection, brain tumors, etc.) or secondary diseases (heart, liver, renal failure, etc.).
  5. Infection around acupoints and/or intolerance to acupuncture manipulation.
  6. MRI or rTMS contraindications (claustrophobia, metal implants, cochlear implants, impulsator, etc.).
05

Study design

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

Study arms

  • Experimental
    Experimental group

    True electroacupuncture

    Device: "TXJN" electro-acupuncture

  • Sham comparator
    Control group

    Sham electroacupuncture

    Device: sham acupuncture

Interventions

  • Device"TXJN" electro-acupuncture

    Firstly, EA treatment will be administered at the Neiguan (PC6, bilateral), Shenting(GV23), Yingxiang(LI20, bilateral), Yintang(GV29) acupoints. Disposable stainless-steel needles (0.25 mm × 25 mm; Huatuo brand, Suzhou Medical Supplies Factory Co., LTD., Suzhou City, China) will be used. After skin disinfection, the acupuncturists will twist and thrust the needle handles to achieve the sensations of achiness, heaviness, and numbness (known as de qi) at all above-mentioned acupoints. Following needle manipulations, EA instruments (SDZ-V, Hwato brand, Suzhou Medical Supplies Factory Co., Ltd., Suzhou City, China) will be used to attach the needle handles at PC6, GV23, LI20, GV29, with a dilatational wave of 5 Hz and a current intensity of 2 \~ 4 mA depending on the patient's tolerance. The needles will be removed after 30 min. Participants will receive 24 sessions over 8 weeks at a frequency of 3 times per week.

  • Devicesham acupuncture

    Firstly, EA treatment will be administered at the non-acupoints near above-mentioned real acupoints. Disposable stainless-steel needles (0.25 mm × 25 mm; Huatuo brand, Suzhou Medical Supplies Factory Co., LTD., Suzhou City, China) will be used. After skin disinfection, the acupuncturists will take the needle into the acupoints without the sensations of de qi. Following needle manipulations, EA instruments (SDZ-V, Hwato brand, Suzhou Medical Supplies Factory Co., Ltd., Suzhou City, China) will be used to attach the needle handles at non-acupoints without the current. The needles will be removed after 30 min. Participants will receive 24 sessions over 8 weeks at a frequency of 3 times per week.

06

What researchers measure

Primary outcomes

  1. Comprehensive Z score

    The neuropsychological scale of 8 objective cognitive assessments used in the study (including AVLT (S and L), AFT, BNT, TMT (A and B), SCWT-C, DSST, DST, CDT) was converted into Z scores for description. Specific operations: Standardize the score of a single cognitive domain scale, create the corresponding Z-score data set, calculate the average value of each data in the group to generate a single Z-score, and sum the Z-score of each single cognitive domain to generate the overall Z-score. Patients were evaluated before treatment and 8 weeks later.

    Time frame: Before and 8 weeks after treatment

  2. Multimodal magnetic resonance imaging of olfactory related neural circuits

    Structural MRI(3DTIWI/3DT2WI/3Dflair), functional MRI(BOLD\\NODDI\\ASL\\ QSM)

    Time frame: Before and 8 weeks after treatment

Secondary outcomes

  1. mini-mental state examination, MMSE

    Time frame: Before and 8 weeks after treatment

  2. Montreal Cognitive Assessment,MoCA

    Time frame: Before and 8 weeks after treatment

  3. Subjective cognitive self-scoring

    Time frame: Before and 8 weeks after treatment

  4. Hamilton Depression Scale,HAMD

    Time frame: Before and 8 weeks after treatment

  5. the Geriatric Depression Scale,GDS

    Time frame: Before and 8 weeks after treatment

  6. Hamilton Anxiety Scale,HAMA

    Time frame: Before and 8 weeks after treatment

  7. auditory verbal learning test,AVLT

    Time frame: Before and 8 weeks after treatment

  8. Rey complex figure test,CFT

    Time frame: Before and 8 weeks after treatment

  9. Boston naming test,BNT

    Time frame: Before and 8 weeks after treatment

  10. Animal fluency test,AFT

    Time frame: Before and 8 weeks after treatment

  11. rail making test-A,TMT-A

    Time frame: Before and 8 weeks after treatment

  12. rail making test-B,TMT-B

    Time frame: Before and 8 weeks after treatment

  13. complex figure test, CFT

    Time frame: Before and 8 weeks after treatment

  14. clock drawing test,CDT

    Time frame: Before and 8 weeks after treatment

  15. Symbol Digit Modalities Test,SDMT

    Time frame: Before and 8 weeks after treatment

  16. odor threshold test,OTT

    Time frame: Before and 8 weeks after treatment

  17. The olfactory behavioral test

    Time frame: Before and 8 weeks after treatment

  18. Spatial navigation behavior test

    Time frame: Before and 8 weeks after treatment

  19. Pittsburgh sleep quality index,PSQI

    Time frame: Before and 8 weeks after treatment

  20. TCM physique classification scale

    Time frame: Before and 8 weeks after treatment

  21. TCM syndrome type scale of mild cognitive impairment

    Time frame: Before and 8 weeks after treatment

Other outcomes

  1. Acceptance survey

    Time frame: After 8 weeks of treatment

  2. Adverse event

    Time frame: During treatment

07

Study locations

1 of 1 sites recruiting
  • The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
    Nanjing, Jiangsu 210008, China
    Recruiting
08

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Sap, Icf, Csr

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06758154
Lead sponsor
The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Responsible party
Sponsor
First posted
Jan 3, 2025
Start date
Dec 28, 2024
Primary completion
Dec 31, 2027 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Aug 27, 2026

Study contacts

Bing Zhang
Contact
zhangbing_nanjing@nju.edu.cn
15851803070

Oversight

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

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