Human Placenta‐Derived Cells ( PDA ‐002) in Diabetic Foot Ulcer Patients With and Without Peripheral Artery Disease: A Phase 2 Multi‐Center, Randomised, Double‐Blind, Placebo‐Controlled Trial

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ABSTRACT The management of diabetic foot ulcers in patients with peripheral artery disease remains challenging. Human placenta‐derived cells (PDA‐002), a mesenchymal stromal cell‐like population obtained from full‐term placental tissue, possess angiogenic and tissue regenerative properties. Participants were stratified based on peripheral artery disease status. A total of 159 individuals were randomly assigned to receive intramuscular PDA‐002 at one of three doses (3 × 10 6 , 10 × 10 6 and 30 × 10 6 cells) or a placebo. This Phase 2 multi‐center, randomised, double‐blind, placebo‐controlled trial evaluated adults with chronic diabetic foot ulcers with and without peripheral artery disease. The primary efficacy endpoint was the proportion of participants achieving complete wound closure of the index ulcer within 3 months, with sustained closure maintained for an additional 4 weeks. PDA‐002 was well‐tolerated, with no treatment‐related serious adverse events. Intramuscular PDA‐002 treatment achieved the highest efficacy at the 3 × 10 6 cell dose within the peripheral artery disease subgroup (38.5% vs. 22.6% for placebo), meeting a stringent 4‐week durability endpoint that surpassed the U.S. Food and Drug Administration's recommended 2‐week sustainability criterion. PDA‐002 shows promise as a breakthrough treatment for diabetic foot ulcers and peripheral artery disease, demonstrating efficacy with two intramuscular doses and no re‐treatment. Trial Registration: ClinicalTrials.gov identifier: NCT # 02264288

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