Application of the cultured epidermal autograft “JACE®” for treatment of severe burns: Results of a 6-year multicenter surveillance in Japan

• Results of a 6-year multicenter surveillance on the application of “JACE” for treatment of burns over 30% total body surface area were analyzed.
• The surveillance included 118 Japanese hospitals, with 216 patients and 718 graft sites.
• The mean cultural epidermal autograft (CEA) take rates at week 4 were 66% (sites) and 68% (patients).
• Artificial dermis provided an adequate wound bed.
• Application of CEA in combination with wide split-thickness auto or patch autograft increased the CEA take rate.

BackgroundIn the 1970s, Green et al. developed a method that involved culturing keratinocyte sheets and used for treatment of burns. Since then, the take rate of cultured epidermal autograft (CEA) onto fascia, granulation tissue, or allografts has been extensively reported, while that on an artificial dermis in a large case series is not. Moreover, the contribution of CEA to patient survival has not been analyzed in a multicenter study.MethodsWe conducted a 6-year multicenter surveillance on the application of the CEA “JACE®” for treatment of burns >30% total body surface area (TBSA) across 118 Japanese hospitals. This surveillance included 216 patients and 718 graft sites for efficacy analysis. The CEA take rate at 4 weeks after grafting was evaluated, and safety was monitored until 52 weeks. In addition, the survival curve obtained in this study and the data obtained from the Tokyo Burn Unit Association (TBUA) were compared.ResultsThe mean CEA take rates at week 4 were 66% (sites) and 68% (patients), and the rate on the artificial dermis was 65% for 226 sites. CEA application combined with wide split-thickness auto or patch autograft increased the CEA take rate. On comparison with the data obtained from the TBUA, which included data on individuals with burns of the same severity, CEA application was found to contribute to patient survival until 7 weeks after burn.ConclusionsWe reported the take rate of CEA based on a 6-year multicenter surveillance. From our results, we found that the application of CEA is a useful treatment for the patients with extensive burns.