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A Randomized Trial of Ultrasound-Guided Acupotomy for Ankylosing Spondylitis

Ultrasound-Guided Acupotomy for Ankylosing Spondylitis: A Protocol for a Participant- and Assessor-Blinded, Sham-Controlled Randomized Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07578220
Acronym
UGA-AS RCT
Enrollment
60
Registered
2026-05-11
Start date
2025-12-02
Completion date
2028-06-30
Last updated
2026-10-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ankylosing Spondylitis

Brief summary

This study employs a randomized controlled trial methodology to systematically evaluate the efficacy and safety of a modified acupotomy technique in the treatment of ankylosing spondylitis. Through ultrasound-guided localization, the operative sites are assessed to clarify the improvement effect of the modified acupotomy on disease activity in AS patients. The aim is to enhance the clinical outcomes of AS, provide evidence-based medical support for acupotomy treatment of AS, and improve the diagnosis and treatment standards for the condition.

Interventions

PROCEDUREUltrasound-guided acupotomy

Ultrasound-guided acupotomy will be performed once weekly for four consecutive weeks (W0-W3), for a total of four sessions. The target vertebral level and treatment sites will be identified by physical examination and ultrasound imaging. Following routine skin preparation and local anesthesia, the acupotomy needle will be advanced under real-time ultrasound guidance to the predefined interspinous and paraspinal treatment sites, where tissue release will be performed according to the standardized treatment protocol.

Sham acupotomy will be performed once weekly for four consecutive weeks (W0-W3), for a total of four sessions. The same preliminary procedures as those used in the experimental group will be followed, including physical examination, ultrasound localization, skin preparation, and local anesthesia. The acupotomy needle will only penetrate superficially, without advancement to the target deep tissues or performance of tissue release.

Sponsors

China-Japan Friendship Hospital
Lead SponsorOTHER
The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Meeting the 1984 revised New York criteria or the 2009 Assessment of SpondyloArthritis International Society (ASAS) classification criteria for axial spondyloarthritis. 2. Aged 18-75 years. 3. Bath Ankylosing Spondylitis Disease Activity Index (BASDAl) score ≥4. 4. Provision of written informed consent.

Exclusion criteria

1. Presence of other autoimmune or inflammatory rheumatic diseases that may affect outcome assessment, including psoriatic arthritis, reactive arthritis, or inflammatory bowel disease-associated spondyloarthritis; 2. Complete spinal ankylosis, severe spinal deformity, previous spinal surgery, or spinal trauma affecting the target treatment area; 3. Severe cardiovascular or cerebrovascular disease, severe hepatic or renal dysfunction, malignancy, coagulation disorders, or other conditions considered unsuitable for the intervention; 4. Pregnancy or breastfeeding; 5. Cognitive impairment or communication difficulties that may affect outcome assessment; 6. Use of biologic agents, targeted synthetic disease-modifying antirheumatic drugs (tsDMARDs), conventional synthetic disease-modifying antirheumatic drugs (csDMARDs), systemic corticosteroids, or other immunomodulatory therapies within the previous month; 7. Previous acupotomy treatment at the target anatomical site within the previous 3 months; 8. Known metal allergy or severe fear of acupotomy procedures.

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) scoreWeek 4,one week after the final treatment sessionThe primary outcome is the between-group difference in change from baseline in BASDAI score at week 4 after intervention.

Secondary

MeasureTime frameDescription
Longitudinal changes in BASDAI scores at weeks 2, 4, and 8Week 2,Week 4,Week 8The change from baseline in BASDAI will be assessed to evaluate disease activity after intervention.
Change from baseline to week 4 in Ankylosing Spondylitis Disease Activity Score (ASDAS-CRP)Baseline and week 4 (one week after the final treatment session)The Ankylosing Spondylitis Disease Activity Score calculated using C-reactive protein (ASDAS-CRP) will be assessed at baseline and week 4 only. The score combines patient-reported symptoms and patient global assessment with CRP. Higher scores indicate greater disease activity. Change will be calculated as the week-4 score minus the baseline score; a negative change indicates improvement. Week 4 is one week after the final treatment session.
Change from baseline in Bath Ankylosing Spondylitis Functional Index (BASFI)Week 2,Week 4,Week 8The change from baseline in BASFI will be assessed to evaluate functional impairment in patients with ankylosing spondylitis.
Change from baseline in Bath Ankylosing Spondylitis Metrology Index (BASMI)Week 2,Week 4,Week 8The change from baseline in BASMI will be assessed to evaluate spinal mobility.
Change from baseline in Ankylosing Spondylitis Quality of Life (ASQoL) scoreWeek 2,Week 4,Week 8The change from baseline in ASQoL score will be assessed to evaluate health-related quality of life.
Change from baseline in Visual Analog Scale (VAS) pain scoreWeek 2,Week 4,Week 8The change from baseline in VAS pain score will be assessed to evaluate pain intensity.
Incidence of adverse eventsBaseline to Week 8Adverse events related to the intervention will be recorded throughout the study period, including bleeding, infection, local hematoma, and neurological symptoms.

Countries

China

Contacts

CONTACTYuqiao Zhang
2378731115@qq.com+86 13661102043

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Oct 16, 2026