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Within-Subject Comparison of Adipose Tissue Viability Following Liposuction

9 de septiembre de 2026 actualizado por: Apyx Medical

A Prospective Within-Subject Comparison of Adipose Tissue Viability and Cellular Characteristics Following Ultrasound- and Power-Assisted Liposuction and Aspiration Modalities

This study will evaluate and compare the quality of adipose (fat) tissue harvested using different liposuction technologies and aspiration methods. Each participant will serve as their own control, with paired fat samples collected from anatomically matched treatment areas. The study will evaluate adipocyte viability and other characteristics of the harvested tissue, including viable adipocyte density, stromal vascular fraction, metabolic activity, and fat composition. The goal of the study is to better understand how different liposuction technologies and aspiration methods affect the quality and characteristics of harvested adipose tissue.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Descripción detallada

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.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

30

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Global Senior Director, Clinical Affairs
  • Número de teléfono: 1-800-537-2790
  • Correo electrónico: research@apyxmedical.com

Ubicaciones de estudio

    • Ohio
      • Concord, Ohio, Estados Unidos, 44077
        • Reclutamiento
        • Mentor Plastic Surgery
        • Contacto:
        • Contacto:
        • Investigador principal:
          • Paul Vanek, MD
    • Washington
      • Olympia, Washington, Estados Unidos, 98506
        • Reclutamiento
        • Pearl Plastic Surgery
        • Contacto:
        • Contacto:
        • Investigador principal:
          • Chris Nichols, MD
        • Investigador principal:
          • Dan Albershardt, MD
        • Sub-Investigador:
          • Owen Johnson, MD

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

Sí

Descripción

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 de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Ciencia básica
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: 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.
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.
Otros nombres:
  • AYON UAL System
  • AYON
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.
Otros nombres:
  • VASER
Comparador activo: 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.
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.
Otros nombres:
  • AYON PL
  • AYON PL System
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.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Paired Difference in Adipocyte Viability Between AYON and VASER
Periodo de tiempo: Day 1
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.
Day 1
Paired Difference in Adipocyte Viability Between Vacuum and Peristaltic Pump Aspiration
Periodo de tiempo: Day 1
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.
Day 1

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Viable adipocyte density (cells/mL)
Periodo de tiempo: Day 1
Determined by adipocyte counting combined with membrane integrity (live-dead) assessment using Trypan Blue exclusion
Day 1
Fat composition analysis
Periodo de tiempo: Day 1
Quantification of oil, fluid, and viable adipose fractions, as well as free oil fraction
Day 1
SVF yield (cells/g fat)
Periodo de tiempo: Day 1
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
Day 1
Metabolic activity
Periodo de tiempo: Day 1
Resazurin/Alamar Blue assay results
Day 1
Aspiration rate (mL/min) (Arm 2 only)
Periodo de tiempo: Day 1
Calculated as total aspirate volume divided by active aspiration time
Day 1
Intraoperative adverse events
Periodo de tiempo: Day 1
Adverse events occurring during collection of paired adipose tissue samples
Day 1

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Investigador principal: Paul Vanek, MD, Mentor Plastic Surgery

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

6 de agosto de 2026

Finalización primaria (Estimado)

31 de diciembre de 2026

Finalización del estudio (Estimado)

30 de abril de 2027

Fechas de registro del estudio

Enviado por primera vez

3 de septiembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

9 de septiembre de 2026

Publicado por primera vez (Actual)

15 de septiembre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

15 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

9 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • APX-AY-26-02

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

Individual participant data will not be shared with other researchers. Study results will be reported in aggregate.

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

Sí

producto fabricado y exportado desde los EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .