UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062044
Receipt number R000070993
Scientific Title Immediate Effects of Trigger Point Acupuncture and Electroacupuncture on Pressure Pain Thresholds in Patients with Chronic Low Back Pain: A Randomized Crossover Controlled Trial
Date of disclosure of the study information 2026/06/24
Last modified on 2026/06/24 16:43:26

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Effects of Trigger Point Acupuncture on Pain Sensitivity in Individuals with Chronic Low Back Pain

Acronym

Trigger Point Chronic Low Back Pain Study

Scientific Title

Immediate Effects of Trigger Point Acupuncture and Electroacupuncture on Pressure Pain Thresholds in Patients with Chronic Low Back Pain: A Randomized Crossover Controlled Trial

Scientific Title:Acronym

Trigger Point Pressure Pain Threshold Trial

Region

Japan


Condition

Condition

Chronic Low Back Pain

Classification by specialty

Orthopedics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to investigate the effects of trigger point acupuncture and electroacupuncture applied to ultrasound-identified myofascial pain-related tissues on peripheral sensitization in patients with chronic low back pain. Pressure pain threshold will be assessed as an indicator of peripheral sensitization, and changes will be compared among acupuncture, electroacupuncture, and no-treatment control conditions.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in Pressure Pain Threshold (PPT)
Assessment time points:Baseline, immediately after intervention

Key secondary outcomes

Subjective pain intensity assessed using the Numeric Rating Scale (NRS)
Assessment time points:Baseline, immediately after intervention


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

Two disposable stainless-steel acupuncture needles will be inserted into trigger points within the lumbar multifidus muscle identified using ultrasonography and retained in situ for 10 minutes.

Interventions/Control_2

Two disposable stainless-steel acupuncture needles will be inserted into trigger points within the lumbar multifidus muscle identified using ultrasonography, and low-frequency electrical stimulation will be applied between the needles for 10 minutes.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

65 years-old >=

Gender

Male and Female

Key inclusion criteria

Adults aged 18~65 years.
Students or employees of the university.
Individuals with chronic low back pain lasting for at least 3 months.
No history of lumbar spine surgery.
No symptoms suggestive of lower extremity radiculopathy.
Reproduction of their usual low back pain upon manual compression of the lumbar multifidus muscle, including the area approximately 2 cm lateral to the midline at the L4,5 vertebral level.
Ability to reliably report symptom reproduction during acupuncture stimulation.
Previous experience with acupuncture treatment.
Provision of written informed consent.

Key exclusion criteria

Individuals with severe fear of acupuncture treatment.
Individuals who have previously experienced all acupuncture stimulation as strongly unpleasant or painful sensations.
Pregnant women or individuals who may be pregnant.
Individuals with bleeding disorders or those receiving anticoagulant therapy.
Individuals with severe orthopedic, neurological, or psychiatric disorders.
Individuals deemed unsuitable for study participation by the principal investigator.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name yoji
Middle name
Last name kitagawa

Organization

Kansai University of Health Sciences

Division name

Faculty of Health Sciences

Zip code

5900482

Address

2-11-1 Wakaba, Kumatori-cho, Sennan-gun, Osaka 590-0482, Japan

TEL

0724538251

Email

kitagawa@kansai.ac.jp


Public contact

Name of contact person

1st name yoji
Middle name
Last name kitagawa

Organization

Kansai University of Health Sciences

Division name

Faculty of Health Sciences

Zip code

5900482

Address

2-11-1 Wakaba, Kumatori-cho, Sennan-gun, Osaka 590-0482, Japan

TEL

0724538251

Homepage URL


Email

kitagawa@kansai.ac.jp


Sponsor or person

Institute

Kansai University of Health Sciences

Institute

Department

Personal name



Funding Source

Organization

Kansai University of Health Sciences

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kansai University of Health Sciences

Address

2-11-1 Wakaba, Kumatori-cho, Sennan-gun, Osaka 590-0482, Japan

Tel

0724538251

Email

kitagawa@kansai.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 06 Month 24 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications


Number of participants that the trial has enrolled

27

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2024 Year 07 Month 11 Day

Date of IRB

2024 Year 07 Month 22 Day

Anticipated trial start date

2024 Year 07 Month 11 Day

Last follow-up date

2026 Year 06 Month 24 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 06 Month 24 Day

Last modified on

2026 Year 06 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070993