NCT06311513

Brief Summary

The goal of this pilot randomized clinical trial is to look into the efficacy of concentrated bone marrow aspirate (cBMA) in improving post traumatic osteoarthritis (PTOA) symptoms in patients undergoing revision anterior cruciate ligament reconstruction surgery. The main questions it aims to answer are whether clinical outcomes, such as pain, are improved in patients who get cBMA with surgery, if there is a change in circulating markers of inflammation and what part of the cellular and molecular composition of cBMA may explain its effects.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for phase_4

Timeline
31mo left

Started Jan 2024

Longer than P75 for phase_4

Geographic Reach
1 country

2 active sites

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress47%
Jan 2024Dec 2028

Study Start

First participant enrolled

January 22, 2024

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

March 8, 2024

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 15, 2024

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2028

Last Updated

November 20, 2025

Status Verified

November 1, 2025

Enrollment Period

3.9 years

First QC Date

March 8, 2024

Last Update Submit

November 19, 2025

Conditions

Keywords

Regenerative MedicineOrthobiologicsConcentrated Bone Marrow AspirateRevision ACLR

Outcome Measures

Primary Outcomes (1)

  • Change from baseline in patient reported knee pain

    The primary outcome measured for this study will be postoperative knee pain. This will be achieved using the Knee Injury and Osteoarthritis Outcome Score (KOOS) standardized questionnaire, which will be electronically delivered to participants at baseline and at 6-weeks, 6-months, 12-months and 24-months postoperatively. This questionnaire measures 42 items in a Likert scale for 5 different dimensions: pain, other symptoms, activities of daily living, function in sports and recreation and knee-related quality of life. The questionnaire is scored as a percentage from 0 to 100, with 0 representing extreme knee problems and 100 indicating no knee related symptoms, and therefore better outcomes.

    Baseline, 6 weeks, 6 months, 12 months and 24 months post-operative

Secondary Outcomes (4)

  • Expression of local inflammatory biomarkers

    Baseline and 6 weeks post-operative

  • Concentration of circulating inflammatory biomarkers

    Baseline, 6 weeks and 12 months post-operative

  • Change from baseline in cartilage morphology

    Baseline, 12 months post-operative

  • Change from baseline in articular cartilage relative proteoglycan content and collagen fibril organization

    Baseline, 12 months postoperative

Study Arms (2)

Investigational Arm

EXPERIMENTAL

Patients undergoing revision anterior cruciate ligament reconstruction surgery will get an intraoperative injection of concentrated bone marrow aspirate (cBMA).

Biological: Concentrated Bone Marrow Aspirate InjectionProcedure: Revision Anterior Cruciate Ligament Reconstruction

Control Arm

SHAM COMPARATOR

Patients undergoing revision anterior cruciate ligament reconstruction surgery will get a sham incision in lieu of bone marrow harvesting.

Procedure: Sham IncisionProcedure: Revision Anterior Cruciate Ligament Reconstruction

Interventions

Intraoperatively, bone marrow will be harvested from the iliac crest with a commercial kit, it will then be prepared via centrifugation and an injection of the resulting concentrated product (cBMA) will be administered in the operative knee. cBMA is an autologous biologic product.

Also known as: cBMA, BMAC, Bone Marrow Aspirate Concentrate
Investigational Arm
Sham IncisionPROCEDURE

A 2 mm sham incision will be made in the anatomical site where bone marrow would be harvested.

Control Arm

This is the standard-of-care surgical procedure.

Also known as: Revision ACLR
Control ArmInvestigational Arm

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Males and Females
  • Age 18 to 55
  • Previous unilateral ACLR (Anterior Cruciate Ligament Reconstruction) within the last 5 years, and identified as having experienced failure of the primary ACLR
  • Scheduled to have a revision ACLR surgery, with any graft type (including patellar tendon, hamstring, quad or allograft)
  • Able to complete all study procedures and participate in a standardized physical therapy program

You may not qualify if:

  • History of inflammatory arthritis or joint sepsis
  • Prior or concurrent total or sub-total meniscectomy
  • Prior or present avascular necrosis of the index knee
  • Oral or intra-articular corticosteroid injection within 3 months
  • Hyaluronic acid or PRP (Platelet-Rich Plasma) injection within 6 months
  • Use of duloxetine, doxycycline, indomethacin, glucosamine and/or chondroitin (ongoing or within 2 months)
  • Any clinical or laboratory abnormality greater than grade 3 CTCAE, which in the view of the investigator, will compromise the participant's safety.
  • Planned arthroplasty in the index knee

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Emory Orthopaedics & Spine Center

Atlanta, Georgia, 30097, United States

RECRUITING

Hospital for Special Surgery

New York, New York, 10021, United States

RECRUITING

MeSH Terms

Conditions

Anterior Cruciate Ligament Injuries

Condition Hierarchy (Ancestors)

Knee InjuriesLeg InjuriesWounds and Injuries

Study Officials

  • Miguel Otero, Ph.D.

    Hospital for Special Surgery, New York

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Daniel de la Huerta, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This is a single-blinded randomized controlled trial. Participants will be allocated to either: 1. Investigational arm (Revision ACLR + cBMA) 2. Control arm (Revision ACLR + Sham Incision)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 8, 2024

First Posted

March 15, 2024

Study Start

January 22, 2024

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2028

Last Updated

November 20, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations