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Efficacy of 0.0125% Capsaicin Patch at Acupuncture Point for Pain Relief in Knee Osteoarthritis

Efficacy of 0.0125% Capsaicin Patch at Acupuncture Point for Pain Relief in Knee Osteoarthritis

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
TCTR
Registry ID
TCTR20141111001
Enrollment
62
Registered
2014-11-11
Start date
2014-09-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

knee osteoarthritis knee osteoarthritis capsaicin patch

Interventions

capsaicin patch over acupuncture point of the knee,placebo patch over acupuncture point of the knee
Experimental Drug,Placebo Comparator Other
capsaicin patch,placebo patch

Sponsors

Faculty of Medicine Siriraj Hospital, Mahidol University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Diagnosis of idiopathic OA knee according to clinical criteria of American College of Rheumatology Knee pain + at least 3 of 6: o Age > 50 years o morning stiffness< 30 minutes o crepitus o bony tenderness o bony enlargement o no palpable warmth 2. Ambulatory patient aged more than 50 years 3. Pain score according to numerical rating scale (while standing) 4&#45;7 out of 10 4. Willing to participate

Exclusion criteria

Exclusion criteria: 1. History of hypesensitivity to capsaicin or related compound&#44; paracetamol&#44; naproxen and NSAIDs 2. Skin lesion at the index (treated) knee 3. History of acupuncture within 1 month prior to screening 4. History of lower extremity surgery within 6 months prior to screening 5. Other rheumatologic disease such as rheumatoid arthritis&#44; gout 6. Disease of lower limb or spine that affect patient ambulation 7. Treatment with other drugs potentially affecting bone or cartilage metabolism&#44; such as : o Chronic systematic corticosteroids o Glucosamine or chondroitin sulphate within 15 day prior to screening o Hyaluronate injection into the index knee within 6 months prior to screening o Diacerin treatment within 12 months prior to screening

Design outcomes

Primary

MeasureTime frame
modified Thai version of WOMAC osteoarthritis index for knee OA (pain subscale) 0&#44;2&#44;4&#44;6&#44;8 week modified Thai version of WOMAC osteoarthritis index for knee OA

Secondary

MeasureTime frame
modified Thai version of WOMAC osteoarthritis index for knee OA (stiffness and physical function) 0&#44;4&#44;8 week modified Thai version of WOMAC osteoarthritis index for knee OA

Countries

Thailand

Contacts

Public ContactChayaporn Chotiyarnwong

Department of physical medicine and rehabilitation&#44; faculty of medicine&#44; Siriraj hospital

hedhom2000@hotmail.com0851363537

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026