About this trial
This study is designed as a randomized, double-blind, placebo-controlled clinical trial with two parallel groups. All participants will receive a standardized physical therapy rehabilitation program. Participants will be randomly allocated into either a study group receiving metformin iontophoresis or a control group receiving placebo iontophoresis. Both participants and outcome assessors will be blinded to group allocation.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
• Postmenopausal women aged 50-70 years.
Clinical and radiographic diagnosis of knee osteoarthritis according to the American College of Rheumatology criteria.
Radiographic severity classified as Kellgren-Lawrence grade II or III.
Chronic knee pain for a duration of at least 3 months.
Disqualifiers
• Severe knee osteoarthritis (Kellgren-Lawrence grade IV).
History of knee surgery or intra-articular injections within the previous 6 months.
Presence of inflammatory rheumatic diseases such as rheumatoid arthritis or gout.
Neurological disorders affecting lower limb function.
Trial design
Parallel
Treatments tested in this trial
Metformin gel Iontophoresis
DrugMetformin gel 2% Iontophoresis Combined with Physical Therapy Rehabilitation
Iontophoresis
DeviceIontophoresis with neutral gel Combined with Physical Therapy Rehabilitation
Treatment groups
Trial outcomes
Primary outcomes
Pain intensity
assessed using the Visual Analog Scale.
Functional status
assessed using the WOMAC index
Sponsors and contacts
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