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Clinical Trial Summary

The human skin aging process is characterized by thinning dermis, atrophy of the extracellular matrix, and reduced collagen synthesis. Loss of collagen in the dermis is of aesthetic concern, as it is the main structural support in the dermis and its loss results in skin laxity. Photo-damaged skin, mostly due to UVR, causes degradation of elastic fibers. This is histologically seen as disorganized tangles of elastin. Additionally, as humans age, skin tends to appear more dry due to its poor hydration and turgor capacity. The use of minimally invasive aesthetic treatments in reducing signs of aging has been gaining in popularity over surgical treatments in recent years. Several energy types including, laser, radiofrequency, infrared, and ultrasound, have been developed for facial rejuvenation. These treatments induce controlled thermal damage into the dermis and cause collagen contraction and neocollagenesis resulting in skin tightening over several months. For improving appearance of other anatomical areas, micro-focused ultrasound has been the preferred method, but has shown limited success in tightening the suprapatellar skin. As with facial skin aging, the suprapatellar skin loses elasticity with age and begins to sag. Noninvasive treatments used for the face may also be used in other anatomical areas to produce the same effects of tightening. Minimally invasive bipolar radiofrequency produces a controlled thermal injury in a fractional manner without damaging the dermal-epidermal junction, epidermis or subcutis. Radiofrequency, unlike lasers, are chromophore-independent providing better penetration than lasers, and spare sweat glands, sebaceous glands, and hair follicles.


Clinical Trial Description

The Profound System is a bipolar fractional radiofrequency device which uses microneedles and thermal heat to stimulate neocollagenesis. Based on the its effect on facial skin, it can be hypothesized that bipolar fractional radiofrequency will stimulate similar effect on suprapatellar skin, lifting and reducing laxity of the skin in that region. This study intends to evaluate the effectiveness of the Profound System on suprapatellar skin, which has been FDA approved for treatment of facial wrinkles and improvement in the appearance of cellulite. This device is a well studied and frequently used on facial skin, however, there are no studies showing its effectiveness elsewhere on the body. There are alternative treatments that have been shown to decrease laxity of the suprapatellar skin, however, the studies include a small and limited population, and have not produced the desired effects in practice. The Profound device may be able to produce clinically significant improvement in laxity of the suprapatellar skin. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03507036
Study type Interventional
Source University of Texas Southwestern Medical Center
Contact
Status Completed
Phase N/A
Start date March 15, 2018
Completion date May 1, 2019

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