- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07562230
Rapid Construction of Tissue-engineered Skin for Repairing Difficult-to-heal Wounds
Rapid Construction of Tissue-engineered Skin for Repairing Difficult-to-heal Wounds: A Multicenter Real-world Study
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Hu Zhicheng
- Número de teléfono: 87755766-8265
- Correo electrónico: huzhch5@mail.sysu.edu.cn
Ubicaciones de estudio
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Guangdong
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Guangzhou, Guangdong, Porcelana
- Reclutamiento
- The First Affiliated Hospital of Sun Yat-sen University
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Contacto:
- The First Affiliated Hospital of Sun Yat-sen University
- Número de teléfono: 87755766-8265
- Correo electrónico: huzhch5@mail.sysu.edu.cn
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- All-age population
Wounds requiring surgical repair (single area 10-100 cm²): acute wounds (burns, traumatic defects, post-scar resection) OR chronic wounds (diabetic foot ulcers, pressure injuries, vascular ulcers)
Completed wound bed preparation (no necrotic tissue, infection controlled)
Signed informed consent and agreement to use tissue-engineered materials and long-term follow-up
Exclusion Criteria:
- History of allergy to allogeneic/xenogeneic tissue-engineered scaffolds or collagen materials
Severe immunosuppression (HIV/AIDS, long-term immunosuppressant use)
Malignant tumors, uncontrolled systemic infection (CRP > 50 mg/L), or organ failure (Child-Pugh Class C)
Mental illness preventing compliance with treatment or follow-up
Pregnant or lactating women
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Rapid Tissue-Engineered Skin Group
Rapid intraoperative construction of autologous EpiSCs-loaded scaffold + split-thickness skin graft (one-step or two-step procedure)
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Autologous split-thickness skin (0.15-0.2 mm) is harvested from the donor site at a donor-to-wound area ratio of 1:20-30.
The harvested skin is processed using a specialized cell sorter to isolate autologous epidermal stem cells (EpiSCs) with >93% viability within 30 minutes.
The cell suspension is adjusted to a concentration of ≥1×10⁶ cells/mL and loaded onto a tissue-engineered scaffold via spraying or immersion (3-5 minutes).
The cell-seeded scaffold is then applied to the wound bed.
Depending on wound condition: (1) One-step procedure: scaffold and a split-thickness skin graft (0.15-0.2 mm) are applied simultaneously; (2) Two-step procedure: scaffold is implanted first, followed by split-thickness skin graft at 14±3 days post-primary surgery.
Negative pressure wound therapy (-100 to -125 mmHg) is applied as needed.
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Comparador activo: Traditional Composite Skin Graft Group
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The same tissue-engineered scaffold (without cell loading) is used.
Autologous split-thickness skin graft (0.15-0.2 mm thickness) is harvested.
The acellular scaffold is applied to the debrided wound bed followed by coverage with the split-thickness skin graft.
The surgical procedure, postoperative wound care, negative pressure wound therapy (-100 to -125 mmHg when indicated), and follow-up protocol are identical to those in the experimental arm.
This comparator represents the current standard of care for composite skin grafting in the participating centers.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Complete Wound Healing Rate
Periodo de tiempo: At 4 weeks post-surgery
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The percentage of participants achieving complete wound epithelialization (defined as 100% re-epithelialization without drainage or dressing requirements)
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At 4 weeks post-surgery
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Wound Recurrence Rate
Periodo de tiempo: 3, 6, 12 months post-surgery
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Incidence of wound recurrence at the healed site
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3, 6, 12 months post-surgery
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Scar Quality Assessment
Periodo de tiempo: 4 weeks, 3, 6, 12 months post-surgery
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Scar quality is assessed using the Vancouver Scar Scale (VSS) and the Patient and Observer Scar Assessment Scale (POSAS) at 4 weeks, 3, 6, and 12 months post-surgery.
The VSS total score ranges from 0 to 13, with higher scores indicating worse scar outcome (assessing vascularity, pigmentation, pliability, and height).
The POSAS includes two separate subscales: the Observer Scale (6 items, each scored 1 to 10, total range 6-60) and the Patient Scale (6 items, each scored 1 to 10, total range 6-60).
For both POSAS subscales, higher scores represent worse scar outcome.
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4 weeks, 3, 6, 12 months post-surgery
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Functional Recovery
Periodo de tiempo: 6, 12 months post-surgery
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Sweat test for assessment of sweat gland regeneration
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6, 12 months post-surgery
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Mortality Rate
Periodo de tiempo: 3, 6, 12 months post-surgery
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All-cause mortality
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3, 6, 12 months post-surgery
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Amputation Rate
Periodo de tiempo: 3, 6, 12 months post-surgery
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Incidence of amputation (for chronic wound patients)
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3, 6, 12 months post-surgery
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Healing Trajectory
Periodo de tiempo: 1, 2, 3 weeks post-surgery
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Wound healing rate at week 1, 2, 3; and time to complete healing
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1, 2, 3 weeks post-surgery
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Safety Outcome
Periodo de tiempo: From day of surgery through 12 months post-surgery
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Safety outcome is the incidence of postoperative complications (including infection, hematoma, and graft failure), adverse events, and serious adverse events, assessed from the day of surgery through study completion, an average of 12 months.
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From day of surgery through 12 months post-surgery
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Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 2026P-ZD025
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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