Acne Vulgaris Clinical Trial
Official title:
Multimodal Optical Imaging for Pretreatment Evaluation for Cutaneous Microparticle Delivery
The purpose of this study is to investigate how pretreatment with a topical medication for acne affects application and delivery of gold microparticles to the skin in acne patients. In addition, the investigators want to investigate the biodistribution of gold microparticles in pretreated skin and compare this with the biodistribution of untreated skin using the non-invasive imaging techniques optical coherence tomography and reflectance confocal microscopy
Epiduo is a prescription gel that combines adapalene and benzoyl peroxide, two active substances for the external treatment of acne. Adapalene is a substance that resembles A-vitamin acid, which dissolves and prevents clog formation in the sebaceous glands. Benzoyl peroxide works by reducing the amount of bacteria while dissolving the clogs in the sebaceous glands. Epiduo is the only antibiotic-free combination for the treatment of acne. Reflectance Confocal Microscopy (RCM) and Optical Coherence Tomography (OCT) are non-invasive imaging technologies allowing for imaging of the upper skin layers. Gold microparticles have been shown to have a contrast effect on the images. In addition to the contrast effect on images, gold microparticles have proven to be effective in the treatment of skin disease acne. The treatment with gold microparticles uses a combination of the gold microparticles and a laser. The microparticles consist of very small particles of silica, surrounded by a shell of gold. These two components of the microparticles are selected from their way of absorbing light from a laser. The particles absorb the light from the laser and are thus heated. The surrounding skin can not absorb the light and therefore will maintain its normal temperature. ;
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