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A Comparison of AmnioExcel® and Total Contact Casting (TCC-EZ) Versus Standard Wound Care and TCC-EZ in Treating Diabetic Foot Ulcers Best practice is to treat DFUs with standardized care and, if unsuccessful, use advanced modalities. This prospective clinical trial will compare healing rates between two treatment modalities in patients with DFUs in an ambulatory wound care clinic. The treatments are Total Contact Cast (TCC-EZ) with AmnioExcel® and TCC-EZ with standard treatment.
Adult participants 18 years or older with a diabetic foot ulcer located on the plantar surface and >1 cm in diameter will be asked by the Altru Wound Care Clinic MD or Family Nurse Practitioner visit to participate in the study if they have not demonstrated a 50% in reduction in wound area after two weeks of standard treatment. For those potential subjects who do not have 3rd party reimbursement the cost of the product and application will be covered by the respective company. They must be cognitively intact as evaluated by wound clinic primary care providers. Participants must agree to use the study treatments as directed, and to keep clinic visits during the 12-week trial or until the ulcer closes, whichever comes first.
Full description
A TCC offloads pressure and is the gold standard for DFU treatment, as documented in several studies. The TCC results in an average healing rate of 80-90% within 6 weeks, yet only about 6% of DFU patients receive the TCC. The TCC requires special provider training for application. Given the high efficacy and low complication risk for the TCC, clinicians need to use the TCC to treat DFUs. Literature supports use of the TCC combined with other wound bed treatment modalities. AmnioExCel® is a dehydrated, extracellular human amnion derived tissue allograft that provides a structural tissue matrix that promotes angiogenesis, collagen matrix formation and re-epithelization (Werber et al., 2013). This study will look at whether or not combining AmnioExCel® and a TCC-EZ results in a better healing rate than TCC-EZ and standard wound care.
Purpose/Research Questions:
The purpose of this prospective clinical trial is to compare healing rates between two treatment modalities in patients with DFUs in an ambulatory wound care clinic. The treatments are Total Contact Casting (TCC-EZ) with AmnioExCel® and TCC-EZ with standard treatment.
Research Questions:
Methods:
All patients in this study will receive 2 weeks of usual wound care consisting of wound cleansing, removal of pressure (offloading), sharp debridement as needed, and maintenance of a moist wound environment. If they have demonstrated less than a 50% improvement in reduction in wound area of their DFU over 2 weeks, subjects will be approached for participation in this study. If they agree to participate, they will be randomly assigned to one of the two treatment groups. Treatment for Group A will consist of TCC-EZ® and AmnioExCel® and treatment for Group B will consist of standard wound care and TCC-EZ® and standard wound care. If the subject has more than one ulcer the largest ulcer will be used for inclusion in the study. At the beginning and end of the study blood samples for HbA1c will be taken and if the HbA1c is greater than 15%, subjects will be excluded or if random blood sugar is greater than 450 mg/dl (Marston et al., 2003). Study participation will be for 12 weeks or less if the wound closes before 12 weeks. DFUs not closed at the end of the 12 weeks of the study will continue to be treated until closed based on the decision of the Altru Wound Care Clinic providers. Complete wound closure will be defined as 100% re-epithelization without drainage or infection. Subjects clinic charts/records will be reviewed by the researchers to collect the following data: group assigned to, gender, age, diabetes diagnosis, co-morbidities, time ulcer has been present, if conventional treatment occurred for two weeks, date of 1st wound clinic visit, last HbA1c, date ulcer 1st noticed by patient, depth, and size of ulcer, ankle-brachial index, and ulcer characteristics at each visit will also be documented. At the conclusion of the study, subjects will complete a 12 question satisfaction questionnaire and six demographic questions on the TCC-EZ which will be administered by the clinic nurse or provider. Subjects may elect to withdraw from the study at any time without repercussion.
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12 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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