- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07820397
Within-Subject Comparison of Adipose Tissue Viability Following Liposuction
A Prospective Within-Subject Comparison of Adipose Tissue Viability and Cellular Characteristics Following Ultrasound- and Power-Assisted Liposuction and Aspiration Modalities
Przegląd badań
Status
Warunki
Szczegółowy opis
This study will compare the quality of fat tissue collected using different liposuction technologies and aspiration methods. Participants will have paired samples of fat tissue collected from similar areas of the body during their planned liposuction procedure. Each participant will serve as their own comparison.
The study will evaluate the viability and characteristics of the collected fat tissue, including the number of viable fat cells, the types and number of cells present in the tissue, metabolic activity, and the composition of the collected tissue. The study will compare these characteristics between the different liposuction technologies and aspiration methods.
The goal of this study is to better understand how different liposuction technologies and aspiration methods affect the quality and characteristics of harvested fat tissue. Participants are not expected to receive any direct clinical benefit from participating in the study beyond that associated with their planned liposuction procedure.
Typ studiów
Zapisy (Szacowany)
Faza
- Nie dotyczy
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Global Senior Director, Clinical Affairs
- Numer telefonu: 1-800-537-2790
- E-mail: research@apyxmedical.com
Lokalizacje studiów
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Ohio
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Concord, Ohio, Stany Zjednoczone, 44077
- Rekrutacyjny
- Mentor Plastic Surgery
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Kontakt:
- Petula Kelly
- Numer telefonu: 440-205-5750
- E-mail: petula@paulvanekmd.com
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Kontakt:
- Mindy Renick
- Numer telefonu: 440-205-5750
- E-mail: Mindy@paulvanekmd.com
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Główny śledczy:
- Paul Vanek, MD
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Washington
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Olympia, Washington, Stany Zjednoczone, 98506
- Rekrutacyjny
- Pearl Plastic Surgery
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Kontakt:
- Shauna Smith-Ewers
- Numer telefonu: 360-878-9300
- E-mail: shauna@pearlplasticsurgery.com
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Kontakt:
- Elle Mortensen
- Numer telefonu: 360-878-9300
- E-mail: elle@pearlplasticsurgery.com
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Główny śledczy:
- Chris Nichols, MD
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Główny śledczy:
- Dan Albershardt, MD
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Pod-śledczy:
- Owen Johnson, MD
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Opis
Inclusion Criteria:
- Male or female aged 30 to 65 years, inclusive.
- Planned elective liposuction/body contouring procedure involving two or more anatomical areas (e.g., arms, abdomen, flanks, thighs, and/or back) with sufficient distribution to permit collection of paired adipose tissue samples from contralateral or anatomically matched treatment areas.
- Investigator determines the subject is an appropriate candidate for the planned procedure and study participation.
- Adequate adipose tissue is present to permit collection of required paired fat samples without impacting the planned surgical outcome.
- Able to understand and sign the informed consent form.
- Willing and able to comply with study requirements.
- If applicable, female subjects of childbearing potential must have a negative urine pregnancy test on the day of procedure.
Exclusion Criteria:
- Prior liposuction or surgical intervention in the planned treatment areas that, in the opinion of the investigator, may affect adipose tissue characteristics or study assessments.
- Prior treatment of the planned treatment areas with energy-based devices (e.g., ultrasound, radiofrequency, laser) that, in the opinion of the investigator, may affect adipose tissue characteristics or study assessments.
- Significant skin laxity, fibrosis, scarring, or other abnormal tissue characteristics in the planned treatment areas that could impact fat harvest quality or comparability between sites.
- Current smoker or use of nicotine-containing products within 4 weeks prior to the procedure.
Known metabolic or systemic conditions that may affect adipose tissue biology or wound healing, including but not limited to:
- uncontrolled diabetes mellitus
- significant vascular disease
- connective tissue disorders
Use of medications known to significantly affect fat metabolism, tissue healing, or inflammatory response, including:
- chronic systemic corticosteroids
- immunosuppressive therapies
- GLP-1 receptor agonists (e.g., semaglutide, tirzepatide) within 4 weeks prior to the procedure
- Active local or systemic infection at the time of the procedure.
- Known coagulopathy or use of anticoagulant therapy that cannot be safely discontinued prior to surgery.
- Pregnant or breastfeeding subjects.
- Body mass index (BMI) outside the range of 20-35 kg/m², inclusive.
- Inadequate adipose tissue volume or distribution to permit paired sample collection from contralateral or anatomically matched areas.
- Participation in another interventional clinical study that, in the opinion of the investigator, could interfere with study endpoints.
- Any condition that, in the opinion of the investigator, would make the subject unsuitable for participation or could confound study results.
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Podstawowa nauka
- Przydział: Randomizowane
- Model interwencyjny: Przydział równoległy
- Maskowanie: Brak (otwarta etykieta)
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
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Aktywny komparator: Ultrasound-Assisted Liposuction Comparison
AYON ultrasound-assisted liposuction (UAL) is compared with VASER ultrasound-assisted liposuction using paired adipose tissue samples collected from anatomically matched treatment areas.
The primary outcome is the paired difference in adipocyte viability, with additional evaluation of adipose tissue characteristics.
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Ultrasound-assisted liposuction using the AYON UAL system.
In this arm, AYON UAL is compared with VASER ultrasound-assisted liposuction using paired adipose tissue samples collected from anatomically matched treatment areas.
Study-specific UAL settings and treatment parameters are defined by the protocol.
Inne nazwy:
Ultrasound-assisted liposuction using the VASER system.
In this arm, VASER is compared with AYON ultrasound-assisted liposuction using paired adipose tissue samples collected from anatomically matched treatment areas.
Study-specific UAL settings and treatment parameters are defined by the protocol.
Inne nazwy:
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Aktywny komparator: Aspiration Modality Comparison
AYON power-assisted liposuction (PL) using a peristaltic pump is compared with vacuum aspiration using paired adipose tissue samples collected from anatomically matched treatment areas.
The primary outcome is the paired difference in adipocyte viability, with additional exploratory evaluation of adipose tissue characteristics.
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Power-assisted liposuction using the AYON PL system with a peristaltic pump.
In this arm, the peristaltic pump aspiration modality is compared with vacuum aspiration using paired adipose tissue samples collected from anatomically matched treatment areas.
Inne nazwy:
Vacuum aspiration used for adipose tissue harvest in the power-assisted liposuction comparison.
In this arm, vacuum aspiration is compared with AYON power-assisted liposuction using a peristaltic pump through paired adipose tissue samples collected from anatomically matched treatment areas.
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Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Paired Difference in Adipocyte Viability Between AYON and VASER
Ramy czasowe: Day 1
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Adipocyte viability (%) will be assessed using membrane integrity (live/dead) analysis by Trypan Blue exclusion.
The primary analysis will evaluate the paired difference in adipocyte viability between AYON ultrasound-assisted liposuction and VASER across paired adipose tissue samples.
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Day 1
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Paired Difference in Adipocyte Viability Between Vacuum and Peristaltic Pump Aspiration
Ramy czasowe: Day 1
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Adipocyte viability (%) will be assessed using membrane integrity (live/dead) analysis by Trypan Blue exclusion.
The primary analysis will evaluate the paired difference in adipocyte viability between vacuum and peristaltic pump aspiration across paired adipose tissue samples in the power-assisted liposuction arm.
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Day 1
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Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Viable adipocyte density (cells/mL)
Ramy czasowe: Day 1
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Determined by adipocyte counting combined with membrane integrity (live-dead) assessment using Trypan Blue exclusion
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Day 1
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Fat composition analysis
Ramy czasowe: Day 1
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Quantification of oil, fluid, and viable adipose fractions, as well as free oil fraction
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Day 1
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SVF yield (cells/g fat)
Ramy czasowe: Day 1
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Determined by enzymatic digestion (e.g., collagenase) of a measured mass of processed adipose tissue, recovery of the stromal vascular fraction pellet by centrifugation, and viable total nucleated cell (TNC) counting
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Day 1
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Metabolic activity
Ramy czasowe: Day 1
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Resazurin/Alamar Blue assay results
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Day 1
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Aspiration rate (mL/min) (Arm 2 only)
Ramy czasowe: Day 1
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Calculated as total aspirate volume divided by active aspiration time
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Day 1
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Intraoperative adverse events
Ramy czasowe: Day 1
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Adverse events occurring during collection of paired adipose tissue samples
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Day 1
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Współpracownicy i badacze
Sponsor
Śledczy
- Główny śledczy: Paul Vanek, MD, Mentor Plastic Surgery
Publikacje i pomocne linki
Publikacje ogólne
- Coleman SR. Structural fat grafting: more than a permanent filler. Plast Reconstr Surg. 2006 Sep;118(3 Suppl):108S-120S. doi: 10.1097/01.prs.0000234610.81672.e7.
- Shiffman MA, Mirrafati S. Fat transfer techniques: the effect of harvest and transfer methods on adipocyte viability and review of the literature. Dermatol Surg. 2001 Sep;27(9):819-26. doi: 10.1046/j.1524-4725.2001.01062.x.
- Kurita M, Matsumoto D, Shigeura T, Sato K, Gonda K, Harii K, Yoshimura K. Influences of centrifugation on cells and tissues in liposuction aspirates: optimized centrifugation for lipotransfer and cell isolation. Plast Reconstr Surg. 2008 Mar;121(3):1033-1041. doi: 10.1097/01.prs.0000299384.53131.87.
- Pu LL. Mechanisms of Fat Graft Survival. Ann Plast Surg. 2016 Feb;77 Suppl 1:S84-6. doi: 10.1097/SAP.0000000000000730.
- Fontes T, Brandao I, Negrao R, Martins MJ, Monteiro R. Autologous fat grafting: Harvesting techniques. Ann Med Surg (Lond). 2018 Nov 13;36:212-218. doi: 10.1016/j.amsu.2018.11.005. eCollection 2018 Dec.
- Mojallal A, Auxenfans C, Lequeux C, Braye F, Damour O. Influence of negative pressure when harvesting adipose tissue on cell yield of the stromal-vascular fraction. Biomed Mater Eng. 2008;18(4-5):193-7.
- Yoshimura K, Suga H, Eto H. Adipose-derived stem/progenitor cells: roles in adipose tissue remodeling and potential use for soft tissue augmentation. Regen Med. 2009 Mar;4(2):265-73. doi: 10.2217/17460751.4.2.265.
- Molitor M, Travnickova M, Mestak O, Christodoulou P, Sedlar A, Bacakova L, Lucchina S. The Influence of High and Low Negative Pressure Liposuction and Various Harvesting Techniques on the Viability and Function of Harvested Cells-a Systematic Review of Animal and Human Studies. Aesthetic Plast Surg. 2021 Oct;45(5):2379-2394. doi: 10.1007/s00266-021-02249-9. Epub 2021 Apr 19.
- Fisher C, Grahovac TL, Schafer ME, Shippert RD, Marra KG, Rubin JP. Comparison of harvest and processing techniques for fat grafting and adipose stem cell isolation. Plast Reconstr Surg. 2013 Aug;132(2):351-361. doi: 10.1097/PRS.0b013e3182958796.
- Eto H, Suga H, Matsumoto D, Inoue K, Aoi N, Kato H, Araki J, Yoshimura K. Characterization of structure and cellular components of aspirated and excised adipose tissue. Plast Reconstr Surg. 2009 Oct;124(4):1087-1097. doi: 10.1097/PRS.0b013e3181b5a3f1.
- Rohrich RJ, Sorokin ES, Brown SA. In search of improved fat transfer viability: a quantitative analysis of the role of centrifugation and harvest site. Plast Reconstr Surg. 2004 Jan;113(1):391-5; discussion 396-7. doi: 10.1097/01.PRS.0000097293.56504.00.
- Shauly O, Gould DJ, Ghavami A. Fat Grafting: Basic Science, Techniques, and Patient Management. Plast Reconstr Surg Glob Open. 2022 Mar 18;10(3):e3987. doi: 10.1097/GOX.0000000000003987. eCollection 2022 Mar.
- Ruff PG 4th, Garcia O Jr, Nykiel MJ, Galanis CJ. Consensus-based Recommendations for Vibration Amplification of Sound Energy at Resonance Ultrasound-assisted Liposuction. Plast Reconstr Surg Glob Open. 2023 Jul 11;11(7):e5110. doi: 10.1097/GOX.0000000000005110. eCollection 2023 Jul.
- Cimino WW. Ultrasonic surgery: power quantification and efficiency optimization. Aesthet Surg J. 2001 May;21(3):233-41. doi: 10.1067/maj.2001.116006.
- Kloehn RA. Liposuction With "Sonic Sculpture": Six Years' Experience With More Than 600 Patients. Aesthetic Surgery Journal. 1996/01/01/ 1996;16(2):123-128
- Beckenstein MS, Grotting JC. Ultrasound-assisted lipectomy using the solid probe: a retrospective review of 100 consecutive cases. Plast Reconstr Surg. 2000 May;105(6):2161-74; discussion 2175-9. doi: 10.1097/00006534-200005000-00041.
- Lawrence N, Coleman WP 3rd. The biologic basis of ultrasonic liposuction. Dermatol Surg. 1997 Dec;23(12):1197-200. doi: 10.1111/j.1524-4725.1997.tb00474.x.
- Garcia O. Ultrasound-Assisted Liposuction Current Concepts and Techniques: Current Concepts and Techniques. 2020.
- Jewell ML. Ultrasonic-Assisted Liposuction: Introduction and Historic Perspectives. In: Garcia Jr O, ed. Ultrasound-Assisted Liposuction: Current Concepts and Techniques; Springer International Publishing date 2020; pages 3-8.
- Jewell ML, Fodor PB, de Souza Pinto EB, Al Shammari MA. Clinical application of VASER--assisted lipoplasty: a pilot clinical study. Aesthet Surg J. 2002 Mar;22(2):131-46. doi: 10.1067/maj.2002.123377.
- Chang CC, Commons GW. A comparison of various ultrasound technologies. Clin Plast Surg. 1999 Apr;26(2):261-8; viii.
- Serdev N. Ultrasound Assisted Liposculpture UAL: A Simplified Safe Body Sculpturing and Aesthetic Beautification Technique. 2011.
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- APX-AY-26-02
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Opis planu IPD
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
produkt wyprodukowany i wyeksportowany z USA
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