- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica 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
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
- Nome: Hu Zhicheng
- Numero di telefono: 87755766-8265
- Email: huzhch5@mail.sysu.edu.cn
Luoghi di studio
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Guangdong
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Guangzhou, Guangdong, Cina
- Reclutamento
- The First Affiliated Hospital of Sun Yat-sen University
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Contatto:
- The First Affiliated Hospital of Sun Yat-sen University
- Numero di telefono: 87755766-8265
- Email: huzhch5@mail.sysu.edu.cn
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Bambino
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Non randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Sperimentale: 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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Comparatore attivo: 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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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Complete Wound Healing Rate
Lasso di tempo: 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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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Wound Recurrence Rate
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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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Collaboratori e investigatori
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 2026P-ZD025
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Informazioni su farmaci e dispositivi, documenti di studio
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Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .