
26/08/2025
It continues to surprise me how a lot of regenerative medicine is done ignoring the science behind it. This is the case with Platelet Rich Plasma as a biological therapy for pain or aesthetics.
The RESTORE trial out of Australia published in JAMA used a commercially available 10ml PRP tube and showed no real evidence of improvement compared to saline. No mention of platelet dose in this study.
Bansal et al performed a similar study published in Nature but quantified platelet dose to 10 billion showing meaningful outcomes.
At Meridian we know what dose of PRP we are using. We have an onsite haemanalyser and use standardised PRP kits and protocols to obtain high dose PRP. This is the standard that needs to be met when assessing a regenerative clinic, otherwise there is a variability in outcomes whether you use PRP in skin, hair rejuvenation or musculoskeltal conditions.
This feeds through to our mesenchymal stem cell treatments also.
Ref:
1. Bennell KL, Paterson KL, Metcalf BR, et al. Effect of Intra-articular Platelet-Rich Plasma vs Placebo Injection on Pain and Medial Tibial Cartilage Volume in Patients With Knee Osteoarthritis: The RESTORE Randomized Clinical Trial. JAMA. 2021;326(20):2021–2030.
2. Bansal, H., Leon, J., Pont, J.L. et al. Platelet-rich plasma (PRP) in osteoarthritis (OA) knee: Correct dose critical for long term clinical efficacy. Sci Rep 11, 3971 (2021).