Platelet-Rich Plasma Injections for Knee Osteoarthritis

This study is testing Platelet-Rich Plasma (PRP) injections for knee osteoarthritis (OA), a condition causing joint pain and stiffness. Researchers want to understand how PRP works by looking at protein changes in your blood after injections. You might be eligible if you are 18-70 years old, have mild to moderate knee OA symptoms for at least three months, and can attend physical therapy. About 60 people will participate, receiving either PRP or a control saline injection. The study aims to discover the benefits of PRP for knee OA and how to best achieve those effects. The current recruitment status is unclear.

Study design
This is a randomized, double-blind, placebo-controlled study with about 60 participants, split into two age groups. All participants will eventually receive a PRP injection through a crossover phase.
What's involved
You will have blood drawn before and after injections, with visits at Week 0, Week 2, Week 12, and possibly Week 14. You will receive either a Platelet-Rich Plasma (PRP) injection or a control saline injection into your knee.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint for measuring protein changes is at 2 weeks, with follow-up visits extending to 12 weeks and an optional 14-week visit for some participants.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06451120

Platelet Rich Plasma Injections In Young And Old Human Subjects

Recruiting
PHASE2Ages 18–70InterventionalTreatment
University of California, San Francisco
~60 participants
Updated 2026-03-19 on ClinicalTrials.gov
What's tested:Platelet-Rich Plasma (PRP) InjectionsCentrifugeControl saline injection

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Identify Protein Changes in Platelet Rich Plasma (PRP)
Measured over 2 weeks
Osteoarthritis
Articular Cartilage
Musculoskeletal Disorders
1 sites across 1 states
California1
  • Anthony Luke, MD, MPH · PRINCIPAL_INVESTIGATOR · University of California, San Francisco

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  • Identify Protein Changes in Platelet Rich Plasma (PRP)2 weeks

    The protein changes from a single autologous PRP injection (5 mL) vs normal saline control, using proteomic analysis of' venous blood samples. For proteomic analysis of Platelet poor plasma (PPP) and PRP, the samples will undergo quantitative mass spectrometry, with higher numbers indicating more proteins and lower numbers meaning less proteins.