Diabetic Foot Ulcer Clinical Trial
Official title:
Comparative Effectiveness of Two Acellular Matrices (Dermacell vs. Integra) for Management of Deep Diabetic Foot Ulcers - A Randomized Clinical Trial
Verified date | June 2023 |
Source | Baylor College of Medicine |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Diabetes-related foot ulcers (DFUs) are a leading cause of hospitalization and amputation worldwide, and account for 33% of all direct costs of diabetes care in the US. Ulcers requiring acute care can result in treatment costs of up to US$70,000 per event, varying with the severity of the wound. Once the skin is ulcerated, it is susceptible to becoming infected and ultimately amputation in particular in case of deep DFUs. To manage the cost and avoid hospitalization and amputation, wound should be immediately closed. But this is often challenging in diabetic foot with deep ulcers.Wound healing is a dynamic process involving interactions between cells, extracellular matrix (ECM) and growth factors that reconstitutes tissue following injury. ECM plays an important role in tissue regeneration and is the major component of the dermal skin layer. Recognition of the importance of the ECM in wound healing has led to the development of wound products that aim to stimulate or replace the ECM in particular in case of deep tissue destruction because of deep DFUs. It is known from the literature that chronic or hard-to-heal wounds are characterized by a disrupted or damaged ECM that cannot support wound healing. Thus treatment strategies based on use of biologic scaffold materials for management of chronic and deep wounds has increased dramatically during the past two decades. These scaffolds include those comprising an intact extracellular matrix (ECM) or individual components of the ECM, and those comprising hybrids incorporating a synthetic component with a biologic component. DermACELL (LifeNet Health,Virginia Beach, VA) is acellular dermal matrices (ADM), which has been shown to be effective in treating chronic DFUs in a clinical trial. Another ADM product available in the market is made by Integra® (Bilayer Matrix Wound Dressing, Integra LifeSciences). However, advantages/disadvantages of one compared to the other are unclear. In addition, prior studies often focused on wound healing outcomes (e.g. time to heal, success of wound healing) without considering patient-centered and physician-centered outcomes such as time and difficulty to apply, likelihood of adverse events and need for reapplication, poor tissue mechanics outcomes (e.g. presence of scarring or tissue biomechanics properties leading to increase in shear or pressure post healing thus increasing likelihood of recurrence of the ulcer), and other patient centered outcomes like smell, pain, and comfort. The primary objective of this prospective, randomized trial is to compare the outcomes of DermaCELL with Integra. The investigators assumed that the wounds outcomes (e.g. weekly wound size change, time to heal, time to successful wound granulation) are comparable between DermaCELL and Integra. However, from operation and patient centered outcomes, there may be some noticeable differences. For instance, DermaCELL, thanks to its mesh structure, thin thickness, and no need for hydration, may be easier to apply with shorter time than Integra. The factors are of key importance in operation room (OR) setting and could reduce overall cost of application and needs in using OR resources. Other important outcomes least addressed in prior studies are number of grafts failing, adverse events (e.g. amputation, infection, etc), cost of wound healing treatment, tissue biomechanics, which may lead to recurrence of ulcers (e.g. formation of tissue scarring), and other patient-centered outcomes (e.g. pain, quality of sleeping, wound smelling, etc). For instance, many patients are unhappy with smelling of wounds, which make them embarrassed among their family members like grand kids. Thus reducing wound smelling during activities of daily living is often considered as an important patient centered outcomes.
Status | Completed |
Enrollment | 34 |
Est. completion date | April 2, 2021 |
Est. primary completion date | October 29, 2020 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - 18 years or older - Non-infected deep wounds (Grade 2 Wagner Ulcer Classification) Exclusion Criteria: - Minors - Wounds with bone exposure - Active infection - Gangrene or osteomyelitis - Major vascular problems (ABI <0.5 or >1.3) - Unable to comply with follow up visits (e.g. long distance travel) - Unable or unwilling to provide consent |
Country | Name | City | State |
---|---|---|---|
United States | Baylor College of Medicine | Houston | Texas |
Lead Sponsor | Collaborator |
---|---|
Baylor College of Medicine | LifeNet Health |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Wound Area at 16 Weeks | Wound area in squared centimeters will be quantified using Aranz Medical Image processing system. The wound will be manually traced using Aranz Medical to obtain length and width. Then the average of wound per group will be compared at 16 weeks. | An average of 16 weeks. | |
Primary | Percentage of Wound Granulation at 16 Weeks | Percentage of wound granulation will be subjectively assessed based on the observation and criteria of the treating clinician. After cleaning the wound, the clinician will provide with a percentage of granulated tissue based on his/her observation. Then, the average of wound granulation per group will be compared at 16 weeks | An average of 16 weeks. | |
Primary | Lower Extremity Skin Perfusion at 16 Weeks | Skin perfusion will be quantified by Skin Perfusion Pressure Test (SPP) using Sensilase PAD-IQ (VASAMED) on the lower extremities. This tests utilizes a cuff with sensors placed above the ankle level which measures the lower extremity distal skin perfusion pressure in millimeters of mercury (mmHg) while eliciting and releasing pressure to the vasculature of the lower leg through the cuff. Then, the average of mmHg per group will be compared at 16 weeks. | An average of 16 weeks. | |
Primary | Wound Saturation of Oxygen at 16 Weeks | Wound saturation of oxygen will be quantified using Near Infrared Spectroscopy by Kent Imaging system. Kent is a non-invasive camera that detects wound saturation of oxygen with a simple spectral picture. After taking the picture, each wound will be traced allowing for accurate and detailed data collection. Then, the average of saturation of oxygen of wounds per group will be compared at 16 weeks. | An average of 16 weeks. | |
Secondary | Number of Participants With Frailty | Frailty assessment will be measured with the Trauma Specific Frailty Index (TSFI) score. The total score of 15 variables including cardiovascular and cognitive comorbidities, and features such as mobility assistance, mood status, physical function, and nutritional status will be taken into consideration to determine whether a patient is frail. The minimum score is 0 and the maximum score is 0.3. A total score (including the 15 variables) of >0.27 is considered as frail. A score of =0.27 score is considered as non-frail. | Only baseline, time of recruitment | |
Secondary | Time of Graft Application to One Wound During Baseline Procedure | Duration of graft application will be measured from the time of the graft being placed on the wound, to the time of the last suture/staple to secure the graft placement. Time will be counted in seconds. Then, the average of time per group will be compared to the other group. | Only at baseline, time of recruitment | |
Secondary | Number of Participants With Graft Re-application to One Wound at 16 Weeks | Number of participants in need to re-apply at least one same or different graft(s) to one wound in approximately 16 weeks | An average of 16 weeks. | |
Secondary | Number of Participants With Wound Complications at 16 Weeks | Complication is described as infection, necrosis, bleeding, or graft-rejection of one wound per patient. | An average of 16 weeks. |
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