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Efficacy of A Non-Invasive Botulinum Toxin Microneedle Pad for the Treatment of Secondary Raynaud's Phenomenon
Sponsor: Khon Kaen University
Summary
Raynaud's Phenomenon (RP), a vasospastic disorder causing digital ischemia and potential tissue necrosis, is effectively treated with Botulinum Toxin Type A (BTX-A) in refractory cases. However, standard administration requires painful, invasive injections that risk infection and localized muscle weakness. To address these limitations, this randomized, placebo-controlled, parallel-group study evaluates a microneedle delivery system designed to reach the dermis while avoiding systemic circulation. By penetrating 70-80% of their height, these microneedles aim to improve hand function and symptom scores for adult systemic sclerosis patients through a more comfortable, portable, and less invasive method that increases delivery surface area while minimizing pain.
Official title: Efficacy of A Non-Invasive Botulinum Toxin Microneedle Pad for the Treatment of Secondary Raynaud's Phenomenon and Digital Ulcers in Systemic Sclerosis: A Randomized Placebo-Controlled Trial
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
72
Start Date
2026-08-01
Completion Date
2028-12-31
Last Updated
2026-08-17
Healthy Volunteers
No
Interventions
Botulinum toxin A via microneedle
Botulinum toxin A plus cream placebo
Control (Normal saline)
Normal saline via microneedles plus isosorbide dinitrate cream