The purpose of this study is to evaluate the safety and efficacy of bipolar fractional radiofrequency treatment via use of the Profound System to achieve skin tightening and contour change in lax submental (beneath the chin) tissue.
This is a single-center, unblinded, non-randomized, non-controlled study designed to follow a total of up to 15 qualified and consenting subjects to receive one bipolar fractional radiofrequency microneedling treatment under an IRB approved protocol. Up to 15 subjects will be enrolled and treated at UT Southwestern in the Department of Plastic Surgery. Subjects will be identified from the clinical practice of Dr. Jeffrey Kenkel, Department of Plastic Surgery.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
15
Radiofrequency (RF) will travel through the RF generator through the electrodes and into the dermal layer beneath the surface of the skin. The microneedles of the dermal cartridges coupled with the thermal heat will stimulate neocollagenesis and neoelastosis, aiding in the reduction of submental laxity.
UT Southwestern Medical Center- Dept of Plastic Surgery
Dallas, Texas, United States
Percent Change From Baseline of Soft Tissue Surface Area
3D stereophotogrammetry measurements obtained at Follow Up visits and compared to baseline measurements. Percent change from baseline was calculated from baseline for both Month 3 and Month 6.
Time frame: Month 3 and Month 6 Follow Up
Percent Change From Baseline in Volume
3D stereophotogrammetry measurements obtained at Follow Up visits and compared to baseline measurements. Percent change from baseline was calculated from baseline for both Month 3 and Month 6.
Time frame: Month 3 and Month 6 Follow Up
Percent Change in Minor Tissue Strain
Percent change in Minor Tissue Strain is measured using the Markerless Tracking feature on Canfield's H2 3D Imaging System. 3D stereophotogrammetry measurements obtained at Follow Up visits and compared to baseline measurements. Percent change from baseline was calculated from baseline for both Month 3 and Month 6.
Time frame: Month 3 and Month 6 Follow Up
Percent Change in Horizontal Displacement
Percent change in Horizontal Displacement is measured using the Markerless Tracking feature on Canfield's H2 3D Imaging System. 3D stereophotogrammetry measurements obtained at Follow Up visits and compared to baseline measurements. Percent change from baseline was calculated from baseline for both Month 3 and Month 6.
Time frame: Month 3 and Month 6 Follow Up
Percent Change in Vertical Displacement
Percent change in Vertical Displacement is measured using the Markerless Tracking feature on Canfield's H2 3D Imaging System. 3D stereophotogrammetry measurements obtained at Follow Up visits and compared to baseline measurements. Percent change from baseline was calculated from baseline for both Month 3 and Month 6.
Time frame: Month 3 and Month 6 Follow Up
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Improvement in Assessments: Global Aesthetic Improvement Score
Blinded reviewers will assessment and score using a 5-point Global Aesthetic Improvement Score (1=Very Much Improved, 5= worse)
Time frame: Baseline - 6 Months (Day 180)
Subjects Assessment of Pain: Numerical Pain Rating Scale
Immediately after the study procedure, subjects will be asked to rate any pain or discomfort using a 11-point Numerical Pain Rating Scale (0= No pain, 10= Extreme pain)
Time frame: Visit 2 (Day 0- immediately after study procedure)
Non-invasive Measurements: Transepidermal Water Loss Measurements
Skin texture and laxity will be assessed using non invasive skin measurements. Biox Aquaflux- will be used to measure transepidermal water loss.
Time frame: Baseline, 3 Month and 6 Month Follow Up
Non-invasive Measurements: Optical Coherence Tomography (OCT) : [Ra, Rz]
Skin texture and laxity will be assessed using non invasive skin measurements. Skin laxity and elasticity are measured using the Biomechanical Tissue Characterization System. Optical coherence tomography (OCT) will be used to topographical and histological images of pre- and post-treated skin. Ra, is the average measurement of skin curvatures and takes into all account variances in the skin roughness profile from the center line. Rz, is the difference between the highest and lowest data points from the mean surface measurement.
Time frame: Baseline, 3 months, 6 Months (Day 180)
Non-invasive Measurements: Optical Coherence Tomography (OCT): Attenuation Coefficient
Skin texture and laxity will be assessed using non invasive skin measurements. Optical coherence tomography (OCT) will be used to topographical and histological images of pre- and post-treated skin. Attenuation coefficient (AC) is a measure of the decay of light intensity within the sample due to absorption and scattering.
Time frame: Baseline, 3 months, 6 Months (Day 180)
Non-invasive Measurements : Biomechanical Tissue Measurements (Laxity, Elasticity)
Skin laxity and elasticity will be assessed using non invasive skin measurements. Bio-Mechanical Tissue Characterization (BTC2000)- will be used to measure skin laxity values of the skin. This is a laser measurement system for objective, quantitative and sensitive analyses of the bio-mechanical properties of: Skin laxity, elasticity.
Time frame: Baseline, Month 3, Month 6
Non-invasive Measurements : Biomechanical Tissue Measurements (Elastic, Viscoelastic and Ultimate Deformation)
Skin Elastic, Viscoelastic and Ultimate Deformation will be assessed using non invasive skin measurements. Bio-Mechanical Tissue Characterization (BTC2000)- will be used to measure skin laxity values of the skin. This is a laser measurement system for objective, quantitative and sensitive analyses of the bio-mechanical properties of: Skin Elastic, Viscoelastic and Ultimate Deformation.
Time frame: Baseline, Month 3, Month 6
Non-invasive Measurements : Biomechanical Tissue Measurements (Stiffness)
Skin stiffness will be assessed using non invasive skin measurements. Bio-Mechanical Tissue Characterization (BTC2000)- will be used to measure skin laxity values of the skin. This is a laser measurement system for objective, quantitative and sensitive analyses of the bio-mechanical properties of: Skin stiffness.
Time frame: Baseline, Month 3, Month 6
Non-invasive Measurements : Biomechanical Tissue Measurements (Energy Absorption)
Energy absorption will be assessed using non invasive skin measurements. Bio-Mechanical Tissue Characterization (BTC2000)- will be used to measure skin laxity values of the skin. This is a laser measurement system for objective, quantitative and sensitive analyses of the bio-mechanical properties of: Skin - Energy absorption
Time frame: Baseline, Month 3, Month 6
Change in Gene Expression at Month 3
Biopsies collected from subjects will be analyzed to observe changes from baseline to Month 3. Gene Expression studies cellular activity and Col1, Col3, ELN, Lox, IL8 are all biomarkers. Fold Changes were compared to control and calculated from Ct values of RT-qPCR reactions. * Ct: threshold cycle * RT-qPCR: Quantitative reverse transcription polymerase chain reaction)
Time frame: Baseline, Month 3
Change in Gene Expression at Month 6
Biopsies collected from subjects will be analyzed to observe changes from baseline to Month 6 . Gene Expression studies cellular activity and Col1, Col3, ELN, Lox, IL8 are all biomarkers. Fold Changes were compared to control and calculated from Ct values of RT-qPCR reactions. * Ct: threshold cycle * RT-qPCR: Quantitative reverse transcription polymerase chain reaction)
Time frame: Baseline, Month 6
Change in Histology at Month 3
All subjects will undergo a single treatment for skin laxity in the submentum with a dermal handpiece. Dermal Handpiece: Radiofrequency (RF) will travel through the RF generator through the electrodes and into the dermal layer beneath the surface of the skin. The microneedles of the dermal cartridges coupled with the thermal heat will stimulate neocollagenesis and neoelastosis, aiding in the reduction of submental laxity. Fold changes were compared to control and were calculated from fluorescence intensity of a confocal microscopy images. Histology studies the structure of the tissue. Col3, Col1, ELN, Macrophage are biomarkers.
Time frame: Baseline, Month 3
Change in Histology at Month 6
All subjects will undergo a single treatment for skin laxity in the submentum with a dermal handpiece. Dermal Handpiece: Radiofrequency (RF) will travel through the RF generator through the electrodes and into the dermal layer beneath the surface of the skin. The microneedles of the dermal cartridges coupled with the thermal heat will stimulate neocollagenesis and neoelastosis, aiding in the reduction of submental laxity. Histology studies the structure of the tissue. Col3, Col1, ELN, Macrophage are biomarkers.
Time frame: Baseline, Month 6