PRP for ACL Injuries to Prevent Post-traumatic Osteoarthritis

This study is looking at whether platelet-rich plasma (PRP) injections can help reduce inflammation and improve knee function after an acute (recent) anterior cruciate ligament (ACL) injury. Researchers will compare PRP injections to a saline (saltwater) placebo injection. They want to see if PRP can help prevent post-traumatic osteoarthritis (PTOA), a type of arthritis that can develop after an injury. The study will measure platelet counts and use a questionnaire called KOOS-JR to assess knee function. You may be able to join if you are 14-50 years old, have had an acute ACL injury within the last 6 weeks, and meet other criteria. The current recruitment status is unclear.

Study design
This is an interventional study planning to enroll 56 participants. It is a pilot study for lab analysis, powered based on the KOOS Jr. questionnaire.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Knee Injury and Osteoarthritis Outcome (KOOS-JR) is measured at baseline. Platelet count is measured at baseline and during the procedure.

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NCT05412381

PRP in ACLR to Prevent PTOA

Recruiting
PHASE3Ages 14–50InterventionalPrevention
Hospital for Special Surgery, New York
~56 participants
Updated 2026-02-13 on ClinicalTrials.gov
What's tested:platelet rich plasma (PRP) injectionplacebo 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
Platelet count (Thousand/uL)
Measured over Baseline
+28 more outcomes measured
Anterior Cruciate Ligament Injuries
Post-traumatic Osteoarthritis
PRP
1 sites across 1 states
New York1

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Eligibility criteria

Inclusion

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)

Exclusion

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

    Platelet count (Thousand/uL) will be measured by completing a complete blood count on patient's blood sample.

  • Platelet count (Thousand/uL)during the procedure

    Platelet count (Thousand/uL) will be measured by completing a complete blood count on patient's blood sample.

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)Baseline

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)during the procedure

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)2 weeks post-op

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)6 weeks post-op

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)6 months post-op

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)12 months post-op

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Knee Injury and Osteoarthritis Outcome (KOOS-JR)24 months post-op

    This survey asks about how the patient feels about their knee. The information helps keep track of how the patient feels about their knee and how well they are able to do their usual activities. There is no unique measurements. Answer options per question regarding stiffness, pain, function, daily and living are: None, Mild, Moderate, Severe, and Extreme

  • Numeric Pain Rating Scale (NPRS)Baseline

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Numeric Pain Rating Scale (NPRS)during the procedure

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Numeric Pain Rating Scale (NPRS)6 weeks post-op

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Numeric Pain Rating Scale (NPRS)6 months post-op

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Numeric Pain Rating Scale (NPRS)12 months post-op

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Numeric Pain Rating Scale (NPRS)24 months post-op

    This survey asks about the patient's pain levels. Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)Baseline

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)during the procedure

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)2 weeks post-op

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)6 weeks post-op

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)6 months post-op

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)12 months post-op

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Patient-Reported Outcomes Measurement Information System 10 (PROMIS-10)24 months post-op

    This survey asks about the patient's overall health and quality of life. Patient will be reporting on a Likert Scale formatted in the following manner for questions 1-6: 5 = "Excellent", 4 = "Very good", 3 = "Good", 2 = "Fair", 1 = "Poor" Patient will be reporting on a Likert Scale formatted in the following manner for question 7: 5 = "Completely", 4 = "Mostly", 3 = "Moderately", 2 = "A little", 1 = "Not at all" Patient will be reporting on a Likert Scale formatted in the following manner for question 8: 1= "Never", 2 = "Rarely", 3 = "Sometimes", 4 = "Often", 5 = "Always" Patient will be reporting on a Likert Scale formatted in the following manner for question 9: 1= "None", 2 = "Mild", 3 = "Moderate", 4 = "Severe", 5 = "Very Severe" For question 10: Patient will be reporting a score on a scale from 0 to 10, with 0 being "No Pain" and 10 being "Worst Pain Imaginable"

  • Single Assessment Numeric Evaluation (SANE)Baseline

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)during the procedure

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)2 weeks post-op

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)6 weeks post-op

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)6 months post-op

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)12 months post-op

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.

  • Single Assessment Numeric Evaluation (SANE)24 months post-op

    This survey asks how the patient feels about their knee. Patient will be reporting a percentage from 0% to 100%, with 100% being normal.