Phase 2 Pilot Trial of Subjects With Complex Non-healing Diabetic Foot Ulcers Treated With Standard Care Plus Cryopreserved Umbilical Cord Allograft (TTAX01)

Inclusion Criteria: * The subject has signed the informed consent form * The subject is male or female, at least 18 years of age inclusive at the date of Screening * The subject has confirmed diagnosis of Type I or Type II diabetes * The subject's index ulcer is located on the plantar surface, inter digital, heel, or lateral or medial surface of the foot * The subject has an index ulcer with visible margins having an area ≥1.0 cm2 to ≤ 10.0 cm2 when measured by the electronic measuring device at Screening * The subject's index ulcer extends beyond the dermis, into subcutaneous tissue with evidence of exposed bone, tendon, muscle and/or joint capsule * The subject presents with history, signs or symptoms leading to a clinical suspicion of osteomyelitis in the opinion of the Investigator supported by positive Probe to Bone (PTB) and any of the following: radiographic (x-ray, Magnetic Resonance Imaging (MRI), or bone scan) or evidence of bone necrosis * The subject has an Ankle Brachial Index ≥ 0.7 to ≤ 1.3 or TcPO2 ≥ 40 mmHg on the dorsum of the affected foot, or Great Toe Pressure ≥ 50 mmHg * The subject is under the care of a physician for the management of Diabetes Mellitus Exclusion Criteria: * The subject's index ulcer is primarily located on the dorsal surface of the foot * The subject's index ulcer can be addressed by primary closure through the completion of the initial or staged surgical procedure * The subject has a glycated hemoglobin A1c (HbA1c) level of \> 12% * The subject has a serum albumin level ≤ 2.0 g/dL * The subject has a white blood cell count \< 2.0 x109/L, neutrophils \< 1.0 x109/L, or platelets \< 100 x109/L * The subject has malignancy or a history of cancer, other than non-melanoma skin cancer, in five years before Screening * The subject is pregnant * The subject is a nursing mother * The subject's index ulcer is over an active Charcot deformity * The subject has had previous use of NEOX®, CLARIX®, or TTAX01 applied to the index ulcer * Per Investigator's discretion the subject is not appropriate for inclusion in the trial, e.g., undergoing surgical treatments listed in the protocol or the subject currently has sepsis