Bioactive Smart Dressings for Diabetic Foot Ulcers: Randomized Controlled Trial

We propose a randomized controlled study to assess the efficacy of:Platelet-lysate loaded sustained release thermo-gelling formulation (Platelets-SR)EPO/ISDN/UFH cryogel dressing (Trigel) As adjuncts to standard-of-care (SOC) in the treatment of chronic DFUs compared to SOC alone for patients attending the DFU outpatient clinic at the Gastroenterology Centre, Mansoura University.

Inclusion Criteria:Male or female age of ≥ 18Type 2 Diabetes Mellitus diagnosed as per the American Diabetic Association at the time of recruitmentPatients with glycated haemoglobin (HbA1C) ≤ 9% within 4 weeks prior to randomizationPatients with ulcer that meets the following criteriaUlcers classified as Grade 1, stage A (1A) ulcers using University of Texas (UT) classification system (ulcers are superficial not involving tendon, capsule or tendon and are non-infected and non-ischemic)Ulcer duration of 4 weeks or longer and hard to heal despite standard of care treatment (chronic ulcers)Ulcer has undergone recent debridement (2 weeks prior to screening)Post-debridement ulcer is free of necrotic debris, foreign bodies, sinus tracts, tunnelling, and undermining and is comprised of healthy vascularized tissueWound area at start of treatment between 2 sq.cm. and 10 sq.cm.No surgical revascularization of the limb with the DFU was done in the previous two months.Limb criteria: At least moderate blood perfusion into the affected limb as defined by Ankle Brachial Index (ABI) of 0.9 - 1.3.Patients who agree to conform to the off-loading requirementsProvide written informed consent prior to admission into the studyExclusion Criteria:Type 1 Diabetes MellitusPatients who have undergone, in the 2-week period prior to enrolment, treatment for DFU with any advanced treatment modality other than standard of care, such as growth factors, skin substitutes or other biological treatmentsHave a glycosylated haemoglobin (HbA1c) > 9.0%Have a body mass index (BMI) > 40 Kg/m2Have a clinically significant cardiac, gastrointestinal, endocrine, neurological, liver, or kidney diseaseAnaemia (Haemoglobin < 9 g/dL) or white Blood Cells count > 11,000/μL or platelets count < 100,000/μL or > 400,000/μL or liver function tests > 3 times upper normal lab values or Creatinine > 3 mg/dL; any indication of malnourishment (Albumin < 3 g/dL); INR > 2 or any other clinically significant blood and urinalysis tests per the physician's discretionPatients with haemochromatosis or unstable hypertensionHave any clinically significant chronic or acute illness during the 4 weeks prior to admission into the study, except type 2 diabetes or during screening periodPatients with wounds caused by basal cell carcinoma or due to basal cell carcinoma excisionFemales who are pregnant, lactating, of child-bearing potential, or post-menopausal for less than 2 years, not using a medically approved method of contraception, or females who test positive on a blood-based pregnancy test.Patients with a history of allergy to one of tested componentsPatients on glyceryl trinitrate or Sildenafil treatmentPatients with a history of any clinical or laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of the investigational agent or may confound the interpretation of study results or might render the patient at high risk for treatment complicationsPatients with active Charcot or other structural deformity that would prevent adequate off-loading of the study foot.