NCT06442319

Brief Summary

The anterior cruciate ligament (ACL) is the main stabilizer of the knee joint, as it controls anteroposterior and rotatory knee laxity. The number of ACL injuries has increased in the past three decades because more and more people participate in recreational and competitive sporting activities. Injury to the ACL often leads to functional instability, damage to the meniscus and articular cartilage, and an increased risk for osteoarthritis (OA). Emphasizes the fact that ACL has limited healing potential 'The gold standard' treatment is ACL reconstruction, with over 200,000 reconstruction surgeries performed annually in the United States. However, despite the success of surgery in restoring functional stability, it has been found so far in several studies that the prevalence of moderate to severe arthritis in long-term radiographic follow-up is more than 50% after ACL reconstruction within 5 to 15 years or sooner. ACL-injured knees had at least 3 times higher risk of arthritis than uninjured contralateral knees. Early osteoarthritis was observed on magnetic resonance imaging (MRI) up to 11 years following ACL injury after operative and nonoperative management. Because ACL injuries predominantly occur in individuals between the ages of 15 and 25 years, symptoms of OA most often affect patients during their most productive years. This is worrisome because most patients who sustain ACL tears are free of the risk of other factors for developing OA.Consequently, posttraumatic OA after ACL reconstruction ultimately translates into a large economic effect on the healthcare system owing to the young age of this population. Platelet-rich plasma is an autologous solution of highly concentrated platelets dispersed in a small capacity of plasma. Enthusiasm for the therapeutic potential of platelets is based on its rich omplement of anabolic growth factors and anti-inflammatory cytokines in the platelets, which induce cellular proliferation, migration, differentiation, angiogenesis, and extracellular matrix synthesis. In addition, the functional mechanisms of PRP in OA treatment have been explained by its effect on modulating critical pro-inflammatory mediators and catabolic enzymes, as well as maintaining joint homeostasis. The reasons for this early incidence of post-traumatic OA remain unclear, but the underlying mechanisms have been speculated to involve some combination of cartilage damage at the time of injury, and posttraumatic molecular changes in the joint, including immune reactions or persistent secondary inflammation. We hypothesized that PRP injection after ACL reconstruction could prevent cartilage damage, act anti-inflammatory, and provide better clinical and radiological outcomes seen in MRI.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
47mo left

Started Jun 2024

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress33%
Jun 2024Apr 2030

First Submitted

Initial submission to the registry

May 29, 2024

Completed
3 days until next milestone

Study Start

First participant enrolled

June 1, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 4, 2024

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2028

Expected
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2030

Last Updated

June 4, 2024

Status Verified

May 1, 2024

Enrollment Period

3.9 years

First QC Date

May 29, 2024

Last Update Submit

May 29, 2024

Conditions

Keywords

PRP, ACL reconstruction, knee osteoarthritis

Outcome Measures

Primary Outcomes (1)

  • Pain and cartilage volume

    The 2 primary outcomes were 12-month change in overall average knee pain scores (11-point scale; range, 0-10, with higher scores indicating worse pain; minimum clinically important difference of 1.8) and percentage change in cartilage volume as assessed by magnetic resonance imaging (MRI).

    12 months

Secondary Outcomes (1)

  • Synovitis

    6 and 12 months post-treatment

Study Arms (2)

Platelet-rich Plasma

EXPERIMENTAL
Biological: Platelet-rich plasma

Hyaluronic Acid

ACTIVE COMPARATOR
Biological: Platelet-rich plasma

Interventions

Platelet-rich plasma intra-articular injection in patients after anterior cruciate ligament reconstruction

Hyaluronic AcidPlatelet-rich Plasma

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • subject is 18-45 years old
  • subject has BMI \< 40 kg/m2
  • subject had ACL reconstrution
  • small asymptomatic meniscal lesions that won't require repair
  • subject must be willing to abstain from other intra-articular treatments of the knee for the duration of the study.
  • subject is willing to discontinue all analgesics including nonsteroidal anti-inflammatory drugs (NSAIDs), except tramadol and paracetamol, at least one month before the synovial fluid aspiration and through the completion of the study
  • subject is able to understand and comply with the requirements of the study and voluntarily provides consent

You may not qualify if:

  • subject has a history of metabolic diseases, endocrine disorders, rheumatic and connective tissue diseases, cancer, hormonal contraception, steroid therapy, antibiotic therapy
  • subject had an intraarticular injection into the affected joint
  • subject had previous operations (beside ACL reconstruction) or fractures of the affected limb
  • subject has a history of nicotine, alcohol, or drug addiction
  • subject has a meniscal tear that requires suturing or total meniscectomy seen on MRI
  • subject has multi-ligament knee injuries or multi-organ injury
  • subject has significant varus or valgus deformity greater than 10 degrees in either knee, determined by an X-ray

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dawid Szwedowski

Torun, 87-100, Poland

RECRUITING

Related Publications (2)

  • Lohmander LS, Ostenberg A, Englund M, Roos H. High prevalence of knee osteoarthritis, pain, and functional limitations in female soccer players twelve years after anterior cruciate ligament injury. Arthritis Rheum. 2004 Oct;50(10):3145-52. doi: 10.1002/art.20589.

    PMID: 15476248BACKGROUND
  • Frobell RB, Roos EM, Roos HP, Ranstam J, Lohmander LS. A randomized trial of treatment for acute anterior cruciate ligament tears. N Engl J Med. 2010 Jul 22;363(4):331-42. doi: 10.1056/NEJMoa0907797.

    PMID: 20660401BACKGROUND

MeSH Terms

Conditions

Anterior Cruciate Ligament InjuriesOsteoarthritis, KneeKnee Injuries

Condition Hierarchy (Ancestors)

Leg InjuriesWounds and InjuriesOsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Central Study Contacts

Dawid Szwedowski, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 29, 2024

First Posted

June 4, 2024

Study Start

June 1, 2024

Primary Completion (Estimated)

April 15, 2028

Study Completion (Estimated)

April 15, 2030

Last Updated

June 4, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations