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Taking people in United StatesPhase 3

PRP in ACLR to Prevent PTOA

Key facts

Who runs it
Hospital for Special Surgery, New York
Where
New York, United StatesSee the site
Trial code
Status
Recruiting
Phase
Phase 3
People taking part
56 people, planned
Started
27 Jun 2022
Expected to end
31 Dec 2026
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • platelet rich plasma (PRP) injection
  • placebo saline injection
Record updated
13 February 2026

Who can take part

Age
14 years to 50 years
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 13 criteriaShow less

Who can take part

  • Acute ACL injury within 6 weeks of presentation
  • Age 14-50
  • Male or female
  • Meniscus injury that can be treated with meniscectomy or repair (the lack of meniscus injury will not exclude patients)

Who cannot take part

  • Prior ACL reconstruction
  • Prior cartilage repair procedure
  • Prior meniscus surgery within 12 months
  • Prior steroid, hyaluronic acid, or PRP injection within 6 months
  • History of inflammatory arthritis or joint sepsis
  • Other ligament injury requiring repair
  • Any cartilage lesion requiring repair
  • Any cartilage lesion greater than grade 2 (partial thickness injury)
  • Non English speakers

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 14 and 50 years old?

Where in United States

  • Hospital for Special SurgeryNew York, United StatesContact: Jessica Andres-Bergos, PhDTaking people

About the trial

What the trial wants to find out

The purpose of our study is to examine the effect of platelet-rich-plasma (PRP) injection on the short-term resolution of post-injury inflammation (biomarkers) and improvement in joint function in patients with acute ACL injury. This RCT has been powered based on the questionnaire KOOS Jr. but it is considered a 'pilot study' in terms of the lab analysis proposed.

The 2 groups in the trial

  • Control ArmPlacebo, for comparison

    The control arm will receive a pre-op placebo injection of saline, and ACLR surgery with intra-op placebo injection

    Treatment: placebo saline injection

  • Investigational ArmTreatment being tested

    The investigational arm will receive a pre-op PRP injection, and ACLR surgery with PRP injection

    Treatment: platelet rich plasma (PRP) injection

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Platelet Rich Plasma (PRP) Treatment of the Anterior Cruciate Ligament Injured Knee to Decrease the Risk of Post-traumatic Osteoarthritis (PTOA): a Randomized Double-blind Controlled Trial
Fit questions
Built from NCT05412381, who can take part
Record updated
13 February 2026