The Effect of Treatment With Umbilical Cord Blood Platelet Lysate on Diabetic Foot Ulcers

110 patients with diabetic foot ulcer will be randomized to receive UCB-PL gel or regular dressing with normal saline. The diabetic foot ulcers will be first debrided to remove any necrotic and infected tissues or hyperkeratotic skin. Afterward, the wound area will be cleaned thoroughly with normal saline. Ulcer length, width and surface will be measured before any study procedure. The UCB-PL gel in the treatment group and the dressing with normal saline in the control group will be applied in the ulcer, and then a few layers of sterile gauze, and non-compressible bandage will be used to cover the wound/ulcer area. This will be repeated every three days for one month. After the fist one month of treatment, the patients will be followed up for a period of 20 weeks post-treatment. Care and management efforts will be provided at each visit included cleansing and assessing of the wound, obtaining an interim wound history, including information regarding adverse events, concomitant medications and other aspects of care since the last visit. Ulcers will be photographed at two weeks, at four weeks, at two months, at four months and at six months.