Study Results
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View full resultsBasic Information
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COMPLETED
NA
20 participants
INTERVENTIONAL
2018-03-15
2019-05-01
Brief Summary
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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.
Detailed Description
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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.
Conditions
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Keywords
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Treatment
All patients will undergo treatment with Profound system device. Using the radiofrequency and temperature setting within the FDA approved limits (460 +/- 5kHz and 65-75°C +/- 1°C), patients will be treated one time over the entire suprapatellar region bilaterally and followed for a 6 month period. The acute effect of the radiofrequency application will be determined by subjective and objective analysis using standard, close-up, 3D, cross-polarized, high resolution ultrasound, optical coherence tomography, transepidermal water loss measurements, and/or BTC 2000 measurements.
Biopsies will be taken using 0.33mm WellTech Rapid Core 0.33mm Biopsy Punch. Biopsies will allow investigators to correlate changes seen in skin measurements with histology and gene expression.
Profound system
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. Bilateral suprapatellar regions will be identified and marked for treatment.
Interventions
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Profound system
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. Bilateral suprapatellar regions will be identified and marked for treatment.
Eligibility Criteria
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Inclusion Criteria
* Subjects who can read, understand, and sign the Informed Consent Form.
* Subjects willing and able to comply with all study requirements
* Fitzpatrick skin type I-III
Exclusion Criteria
* Immunocompromised subjects.
* Subjects with coagulation disorder.
* History of skin photosensitivity disorders, or use of photosensitizing drugs (e.g., tetracycline or sulfa drugs).
* Pregnant and/or lactating (All female volunteers will be advised about using birth control during the period of study).
* In the opinion of the trained clinician, subject is unwilling or unable to adhere to all study requirements, including application and follow-up visits.
* Subjects with a history of radiation therapy to the treatment area.
* Subject has a history of allergy to lidocaine or ester-based local anesthetics.
* Subjects with any skin pathology or condition that could interfere with evaluation or with the use of typical ancillary medical treatments or care used before, during or after treatments.
* Subjects have undergone dermatological procedures (e.g., laser or light treatments) for the treatment of wrinkles, skin resurfacing, or skin rejuvenation in the treatment area within 1 year of study participation.
18 Years
75 Years
ALL
Yes
Sponsors
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University of Texas Southwestern Medical Center
OTHER
Responsible Party
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Jeffrey M. Kenkel
Betty and Warren Woodward Chair in Plastic and Reconstructive Surgery
Principal Investigators
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Jeffrey Kenkel, MD
Role: PRINCIPAL_INVESTIGATOR
Chair & Professor
Locations
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University of Texas Southwestern Medical Center
Dallas, Texas, United States
Countries
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References
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Tobin DJ. Introduction to skin aging. J Tissue Viability. 2017 Feb;26(1):37-46. doi: 10.1016/j.jtv.2016.03.002. Epub 2016 Mar 14.
Hantash BM, Ubeid AA, Chang H, Kafi R, Renton B. Bipolar fractional radiofrequency treatment induces neoelastogenesis and neocollagenesis. Lasers Surg Med. 2009 Jan;41(1):1-9. doi: 10.1002/lsm.20731.
Alster TS, Tanzi EL. Noninvasive lifting of arm, thigh, and knee skin with transcutaneous intense focused ultrasound. Dermatol Surg. 2012 May;38(5):754-9. doi: 10.1111/j.1524-4725.2012.02338.x. Epub 2012 Jan 23.
Alexiades-Armenakas M, Newman J, Willey A, Kilmer S, Goldberg D, Garden J, Berman D, Stridde B, Renton B, Berube D, Hantash BM. Prospective multicenter clinical trial of a minimally invasive temperature-controlled bipolar fractional radiofrequency system for rhytid and laxity treatment. Dermatol Surg. 2013 Feb;39(2):263-73. doi: 10.1111/dsu.12065. Epub 2012 Dec 28.
Gold M, Taylor M, Rothaus K, Tanaka Y. Non-insulated smooth motion, micro-needles RF fractional treatment for wrinkle reduction and lifting of the lower face: International study. Lasers Surg Med. 2016 Oct;48(8):727-733. doi: 10.1002/lsm.22546. Epub 2016 Aug 4.
Provided Documents
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Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Other Identifiers
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STU 082017-079
Identifier Type: -
Identifier Source: org_study_id