Subjects With Non-Healing Venous Leg Ulcers Treated With Standard Care Plus Cryopreserved Human Umbilical Cord (TTAX01)

Inclusion Criteria: * Provide informed consent. * Age ≥ 18 years and of either sex. * Willing to comply with protocol instructions, including allowing all study assessments. * Have a venous leg ulcer (VLU) between the knee and ankle (at or above the malleolus), with a surface area in the range of ≥ 2.0 cm2 and ≤ 18.0 cm2 confirmed using the wound imaging and measurement device. * Venous insufficiency confirmed by duplex Doppler ultrasound examination for valvular or venous incompetence. * Arterial supply adequacy confirmed by any one of the following: Great toe pressure ≥ 50 mm/Hg; Systolic blood pressure Ankle Brachial Index (ABI) in the range ≥ to 0.8 to ≤ 1.1; TcPO2 ≥ to 40 mmHg from the foot * Target ulcer involves a full thickness skin loss, but WITHOUT exposure of tendon, muscle, or bone * Target ulcer duration ≥ 6 weeks but ≤ 104 weeks * For diabetic subjects an HbA1C \< 12.0% per the local lab report Exclusion Criteria: * Therapy with another investigational agent within thirty (30) days of Screening, or during the study. * A target ulcer of non-venous etiologies (e.g., sickle cell anemia, necrobiosis lipoidica diabeticorum, pyoderma gangrenosum, vasculopathic or vasculitic). * Deep Vein Thrombosis (DVT) that is acute, defined as the first 10 days from onset of symptoms, or any DVT for which compression bandaging is considered by the Investigator to be contraindicated. * Clinical evidence of ulcer bed infection as described in the Study Guide. * Documented history …