To evaluate the safety and efficacy of realSKIN® to provide complete wound closure of mixed-depth, full-thickness burn wounds as an alternative treatment to autografting.
This study is a Phase 3 open-label, interventional, controlled, randomized, multicenter clinical trial. It is comprised of an estimated 50 men and women aged 18 years and older who experienced severe and extensive, mixed-depth and full-thickness thermal burn wounds up to 50% TBSA requiring surgical excision and skin grafting for which autografting is clinically indicated. The comparator control for the study is autografting, the current standard of care procedure for the treatment of severe burns, which involves the removal of healthy skin from an uninjured site on the patient and using it to cover the original burn wound to achieve complete and durable wound closure. After surgical preparation of the wound bed, subjects will receive approximately 100 square centimeters of realSKIN at a predesignated wound site and separately, autografting at an alternate site, per the standard of care, in accordance with the randomization schedule. Thus, each patient represents both the experimental and control group, to be evaluated in isolated but comparable settings. The use of an intra-patient comparator allows for a matched control to eliminate significant underlying differences, including immunologic, physiologic, and scarring variable inherent in this patient population that may impact wound healing at the treatment sites. After surgical excision to remove nonviable tissue or previously applied temporary wound dressings, two wound treatment sites of comparable area and depth will be identified. Treatment assignment will be randomized to receive either realSKIN or a surgically harvested autograft. The pre-identified treatment sites must each be a wound area of comparable depth that is not contiguous (e.g., "sharing a common border or touching") to ensure the interpretability of the efficacy results. Additionally, two unaffected areas of the patient's intact, healthy skin will be prospectively identified to provide sources of autografts for the control site and realSKIN treatment site (e.g., patient skin harvest sites.) These pre-identified regions may be in the same anatomic area or from two separate but comparable areas, depending on the amount of intact native patient skin available.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
realSKIN® is a live biotherapeutic, bi-layered, split-thickness, membranous, skin xenotransplant wound dressing manufactured from living porcine skin sourced from genetically engineered, alpha-1,3-galactosyltransferase knock-out (GalT-KO) porcine (Sus scrofa) donors under aseptic conditions. realSKIN® is topically applied to a surgically prepared wound bed via sutures or staples and may be trimmed to fit the shape and size of the wound area.
Autograft(ing) is the current standard of care procedure for the treatment of severe burns. The procedure involves the removal of a sheet of healthy skin, i.e. autologous (self) skin harvesting, from an uninjured site on the patient and using it to cover the original burn wound.
Arizona Burn Center Valleywise Health
Phoenix, Arizona, United States
RECRUITINGJMS Burn Center at Doctors Hospital
Augusta, Georgia, United States
RECRUITINGMaineHealth Maine Medical Center
Portland, Maine, United States
NOT_YET_RECRUITINGIncidence of Complete Wound Closure at Post-Treatment Day 28 (± 7 days)
Complete wound closure is defined as \>95% skin re-epithelization in an area of the treatment site without drainage or dressing requirements by Post-Treatment Day 28 (± 7 days). Durable wound closure is defined as confirmation of complete wound closure in an area of the treatment site at two consecutive evaluations, spaced by no less than 14 days and no more than 5 months. Post-Treatment is defined as time elapsed following autografting and treatment with realSKIN, and is not necessarily time elapsed from time of initial time of injury (i.e. in cases where an interim wound dressings were employed prior to autografting.)
Time frame: Post-Treatment Day 28 (± 7 days)
Percent Area of Treatment Sites Autografted
Percent area of treatment sites autografted is the sum of the percent areas at each assessment/visit.
Time frame: Post-Treatment Month 4 (± 1 month)
Pain at the Patient Skin Harvest Sites
Visual Analogue Scale (VAS) scale range from 0 (no pain) to 10 (worst pain). Pain scores assessed up to Post-Treatment Month 4 (± 1 month) are averaged for the summary statistics.
Time frame: Post-Treatment Month 4 (± 1 month)
Exploratory Endpoint: Evaluate realSKIN treatment sites for the existence of residual porcine cell populations at Post-Treatment Month 4 (± 1 month).
3 mm skin biopsies will be obtained from enrolled and treated patients of this study who volunteer to provide samples for analysis at post-treatment Month 4 (± 1 month).
Time frame: Post-Treatment Month 4 (± 1 month)
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Purpose
TREATMENT
Masking
NONE
Enrollment
50
Massachusetts General Hospital
Boston, Massachusetts, United States
NOT_YET_RECRUITING