Safety study of leucoreduced allogeneic pooled freeze-dried platelet-rich plasma in healthy equine joints.
Authors: Kooy Sarah, Constant Jemma, Cole Robert, Boone Lindsey
Journal: Frontiers in veterinary science
Summary
# Editorial Summary: Safety of Allogeneic Freeze-Dried PRP in Equine Joints As intra-articular platelet-rich plasma therapies have gained traction in equine sports medicine, the lack of standardised, shelf-stable allogeneic formulations has limited widespread clinical adoption and controlled research. Kooy and colleagues investigated the safety profile of leucoreduced allogeneic pooled freeze-dried PRP (alloPRP) by injecting a single dose into the metacarpophalangeal or metatarsophalangeal joints of healthy horses, measuring both systemic inflammatory markers and local joint responses over a defined monitoring period compared to saline controls. The freeze-dried alloPRP formulation proved safe with no significant systemic adverse effects, minimal local inflammatory reaction within normal joint parameters, and preserved platelet function characteristics following reconstitution. These findings support the feasibility of developing a standardised, off-the-shelf allogeneic PRP product that could enable more rigorous clinical trials and potentially improve accessibility for practitioners seeking evidence-based regenerative therapies. For practitioners currently administering autologous or fresh allogeneic PRP, this work provides reassurance that a manufacturable alternative could maintain therapeutic potential whilst reducing processing time and the variability inherent in point-of-care preparations.
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Practical Takeaways
- •Allogeneic freeze-dried PRP appears safe for intra-articular use in horses, with no adverse effects detected—this shelf-stable format could simplify clinical protocols compared to autologous PRP
- •The standardized composition of pooled allogeneic PRP offers more consistent dosing than autologous products, potentially improving treatment reliability
- •While safety is established, clinicians should await efficacy data before adopting this product clinically; this study confirms it will not harm healthy joints
Key Findings
- •Leucoreduced allogeneic freeze-dried PRP was safely injected intra-articularly in healthy equine joints with no reported adverse systemic or local reactions compared to saline placebo
- •The study establishes feasibility of using shelf-stable, standardized allogeneic PRP products for equine joint treatment
- •Study design included both systemic and local effect monitoring to characterize safety profile of the intervention