-
Study aim
-
1- Evaluation of the safety and efficacy of amniotic membrane seeded by allogenic fibroblast and keratinocyte in chronic wounds of patients with dystrophic epidermolysis bullosa
2- comparison of the wound size, severity and recurrent rate in amniotic membrane seeded by allogenic fibroblast and keratinocyte group and amniotic membrane group
3- comparison of the expression of type 7 collagen in amniotic membrane seeded by allogenic fibroblast and keratinocyte group and amniotic membrane group
-
Design
-
Randomized, double blinded, controlled, parallel group phase II clinical trial in 20 patients and 6 months follow up
-
Settings and conduct
-
In each patient referred to the Skin and Stem Cell Center 2 wounds with 10 to 100 cm square are selected and then randomly covered by the amniotic membrane seeded by allogenic fibroblasts or amniotic membrane alone. The scaffold will be prepared every 4 weeks until complete wound closure. The wounds are evaluated each week for up to 1 month, and then every month, up to 6 months after transplantation, in terms of the severity and extent of the wound, the number of needed scaffolds, the relapse time, and the expression rate of collagen type 7.
-
Participants/Inclusion and exclusion criteria
-
Inclusion criteria: 20 patients aged 2-20 years old, Both sexes, Dystrophic type, Multiple skin wounds which are recurrent during 6 months ago
Exclusion criteria: Pregnancy or lactating, Arterial or venous defects in recipient site, Immune deficiency, Hemolytic anemia, Chronic malnutrition, Respiratory defects, Diabetes, Local infection of recipient site, Cell transplantation of recipient site during last 1 year, HBV, HCV, and HIV, Malignancy of recipient site
-
Intervention groups
-
Amniotic membrane seeded by allogenic skin cells group
Amniotic membrane group
-
Main outcome variables
-
Wound size, complete wound closure, wound severity, pain intensity, collagen type 7 expression rate