Biologic Injection For Adults With Lumbar Disc Herniation
BMAC
Bone Marrow Aspirate Concentrate Injection With MRI's - A Prospective Randomized Control Trial
1 other identifier
interventional
90
1 country
1
Brief Summary
The goal of this clinical trial is to find out whether adding a bone-marrow aspirate concentrate (BMAC) injection during surgery can improve recovery in adults undergoing lumbar microdiscectomy for a lumbar disc herniation. The main questions it aims to answer are:
- Does the BMAC injection lead to better disc tissue health after surgery (as seen on MRI scans)?
- Does the BMAC injection lead to greater improvement in pain and disability compared to surgery alone? Participants will be adults aged 18 and older who are scheduled for lumbar microdiscectomy surgery. Researchers will compare one group of participants receiving the standard-of-care surgery plus the BMAC injection with another group receiving the same surgery without the injection to see if the injection offers added benefit. Participants will:
- Have surgery (microdiscectomy) with or without the injection.
- Complete pain and disability questionnaires at several times over 2 years.
- Undergo MRI scans at baseline and follow-up to assess disc structure and tissue health.
- Provide samples of leftover disc or bone-marrow tissue (as applicable) from surgery for analysis.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2026
Longer than P75 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
January 27, 2026
CompletedFirst Posted
Study publicly available on registry
February 4, 2026
CompletedStudy Start
First participant enrolled
May 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2030
Study Completion
Last participant's last visit for all outcomes
December 1, 2030
April 16, 2026
April 1, 2026
3.7 years
January 27, 2026
April 14, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (18)
Change from Baseline in Intervertebral Disc Hydration at 3 Months
MRI T2 mapping and T2 relaxation time are advanced imaging techniques that help assess the hydration status of intervertebral discs. These two metrics will be combined as one data point. T2 relaxation time measures the decay of the MRI signal, which is influenced by the water content in the disc. Higher T2 values indicate better hydration, while lower T2 values suggest dehydration and degeneration. T2 mapping provides a detailed, quantitative assessment of the disc's water content, allowing for early detection of degenerative changes before they become visible on standard MRI images. This information is crucial for diagnosing the extent of disc degeneration, planning surgical interventions, and monitoring the effectiveness of treatments aimed at restoring disc health.
Baseline and 3 Months post-operation
Change from Baseline in Intervertebral Disc Hydration at 1 Year
MRI T2 mapping and T2 relaxation time are advanced imaging techniques that help assess the hydration status of intervertebral discs. These two metrics will be combined as one data point. T2 relaxation time measures the decay of the MRI signal, which is influenced by the water content in the disc. Higher T2 values indicate better hydration, while lower T2 values suggest dehydration and degeneration. T2 mapping provides a detailed, quantitative assessment of the disc's water content, allowing for early detection of degenerative changes before they become visible on standard MRI images. This information is crucial for diagnosing the extent of disc degeneration, planning surgical interventions, and monitoring the effectiveness of treatments aimed at restoring disc health.
Baseline and 1 year post-operation
Change from Baseline in Intervertebral Disc Hydration at 2 Years
MRI T2 mapping and T2 relaxation time are advanced imaging techniques that help assess the hydration status of intervertebral discs. These two metrics will be combined as one data point. T2 relaxation time measures the decay of the MRI signal, which is influenced by the water content in the disc. Higher T2 values indicate better hydration, while lower T2 values suggest dehydration and degeneration. T2 mapping provides a detailed, quantitative assessment of the disc's water content, allowing for early detection of degenerative changes before they become visible on standard MRI images. This information is crucial for diagnosing the extent of disc degeneration, planning surgical interventions, and monitoring the effectiveness of treatments aimed at restoring disc health.
Baseline and 2 years post-operation
Change from Baseline in Proteoglycan Content at 3 Months
MRI T1 rho mapping and T1 rho relaxation time are advanced imaging techniques that provide insights into the biochemical composition of intervertebral discs, particularly the proteoglycan content. T1 rho relaxation time measures the decay of the MRI signal in the presence of a spin-lock pulse, which is sensitive to interactions between water molecules and macromolecules like proteoglycans. These two metrics will be combined as one data point. Higher T1 rho values indicate higher proteoglycan content and better disc hydration, while lower values suggest degeneration and reduced proteoglycan levels. T1 rho mapping offers a detailed, quantitative assessment of these biochemical changes, allowing for early detection of disc degeneration and aiding in the evaluation of treatment efficacy.
From enrollment to 3 Months post-operation
Change from Baseline in Proteoglycan Content at 1 Year
MRI T1 rho mapping and T1 rho relaxation time are advanced imaging techniques that provide insights into the biochemical composition of intervertebral discs, particularly the proteoglycan content. T1 rho relaxation time measures the decay of the MRI signal in the presence of a spin-lock pulse, which is sensitive to interactions between water molecules and macromolecules like proteoglycans. These two metrics will be combined as one data point. Higher T1 rho values indicate higher proteoglycan content and better disc hydration, while lower values suggest degeneration and reduced proteoglycan levels. T1 rho mapping offers a detailed, quantitative assessment of these biochemical changes, allowing for early detection of disc degeneration and aiding in the evaluation of treatment efficacy.
From enrollment to 1 year post-operation
Change from Baseline in Proteoglycan Content at 2 Years
MRI T1 rho mapping and T1 rho relaxation time are advanced imaging techniques that provide insights into the biochemical composition of intervertebral discs, particularly the proteoglycan content. T1 rho relaxation time measures the decay of the MRI signal in the presence of a spin-lock pulse, which is sensitive to interactions between water molecules and macromolecules like proteoglycans. These two metrics will be combined as one data point. Higher T1 rho values indicate higher proteoglycan content and better disc hydration, while lower values suggest degeneration and reduced proteoglycan levels. T1 rho mapping offers a detailed, quantitative assessment of these biochemical changes, allowing for early detection of disc degeneration and aiding in the evaluation of treatment efficacy.
From enrollment to 2 years post-operation
Change from Baseline in Disc Height Index at 3 Months
Assessed via MRI, the Disc Height Index (DHI) is a measurement used in spine surgery to assess the height of an intervertebral disc. It is calculated by dividing the height of the disc at the mid-vertebral line by the height of the superior vertebral body. This index helps in evaluating the degree of disc degeneration and is often used to monitor changes before and after surgical interventions.
From enrollment to 3 months post-operation
Change from Baseline in Disc Height Index at 1 Year
Assessed via MRI, the Disc Height Index (DHI) is a measurement used in spine surgery to assess the height of an intervertebral disc. It is calculated by dividing the height of the disc at the mid-vertebral line by the height of the superior vertebral body. This index helps in evaluating the degree of disc degeneration and is often used to monitor changes before and after surgical interventions.
From enrollment to 1 year post-operation
Change from Baseline in Disc Height Index at 2 Years
Assessed via MRI, the Disc Height Index (DHI) is a measurement used in spine surgery to assess the height of an intervertebral disc. It is calculated by dividing the height of the disc at the mid-vertebral line by the height of the superior vertebral body. This index helps in evaluating the degree of disc degeneration and is often used to monitor changes before and after surgical interventions.
From enrollment to 2 years post-operation
Change from Baseline in Pfirrmann Grade at 3 Months
Assessed via MRI, Pfirrmann grading is a radiological classification used to assess the severity of lumbar intervertebral disc degeneration. It categorizes disc degeneration into five grades based on specific criteria related to the appearance of the discs: Grade I: Normal disc with high signal intensity and well-defined nucleus and annulus. Grade II: Slightly degenerated disc with a normal height but a lower signal intensity in the nucleus. Grade III: Moderate degeneration with a loss of disc height and a more pronounced decrease in signal intensity. Grade IV: Severe degeneration with significant loss of disc height and a very low signal intensity. Grade V: End-stage degeneration with a collapsed disc and no visible nucleus
From enrollment to 3 months post-operation
Change from Baseline in Pfirrmann Grade at 1 Year
Assessed via MRI, Pfirrmann grading is a radiological classification used to assess the severity of lumbar intervertebral disc degeneration. It categorizes disc degeneration into five grades based on specific criteria related to the appearance of the discs: Grade I: Normal disc with high signal intensity and well-defined nucleus and annulus. Grade II: Slightly degenerated disc with a normal height but a lower signal intensity in the nucleus. Grade III: Moderate degeneration with a loss of disc height and a more pronounced decrease in signal intensity. Grade IV: Severe degeneration with significant loss of disc height and a very low signal intensity. Grade V: End-stage degeneration with a collapsed disc and no visible nucleus
From enrollment to 1 year post-operation
Change from Baseline in Pfirrmann Grade at 2 Years
Assessed via MRI, Pfirrmann grading is a radiological classification used to assess the severity of lumbar intervertebral disc degeneration. It categorizes disc degeneration into five grades based on specific criteria related to the appearance of the discs: Grade I: Normal disc with high signal intensity and well-defined nucleus and annulus. Grade II: Slightly degenerated disc with a normal height but a lower signal intensity in the nucleus. Grade III: Moderate degeneration with a loss of disc height and a more pronounced decrease in signal intensity. Grade IV: Severe degeneration with significant loss of disc height and a very low signal intensity. Grade V: End-stage degeneration with a collapsed disc and no visible nucleus
From enrollment to 2 years post-operation
Change from Baseline in Nucleus Pulposus Size at 3 Months
The Nucleus Pulposus is the soft, gel-like center of an intervertebral disc, surrounded by the tougher annulus fibrosus. It plays a crucial role in absorbing shock and allowing flexibility in the spine. Assessed via MRI, the size and condition of the nucleus pulposus are indicators of disc health. A healthy nucleus pulposus is typically well-hydrated and maintains disc height, while a degenerated nucleus pulposus may shrink and lose its cushioning ability.
From enrollment to 3 months post-operation
Change from Baseline in Nucleus Pulposus Size at 1 Year
The Nucleus Pulposus is the soft, gel-like center of an intervertebral disc, surrounded by the tougher annulus fibrosus. It plays a crucial role in absorbing shock and allowing flexibility in the spine. Assessed via MRI, the size and condition of the nucleus pulposus are indicators of disc health. A healthy nucleus pulposus is typically well-hydrated and maintains disc height, while a degenerated nucleus pulposus may shrink and lose its cushioning ability.
From enrollment to 1 year post-operation
Change from Baseline in Nucleus Pulposus Size at 2 Years
The Nucleus Pulposus is the soft, gel-like center of an intervertebral disc, surrounded by the tougher annulus fibrosus. It plays a crucial role in absorbing shock and allowing flexibility in the spine. Assessed via MRI, the size and condition of the nucleus pulposus are indicators of disc health. A healthy nucleus pulposus is typically well-hydrated and maintains disc height, while a degenerated nucleus pulposus may shrink and lose its cushioning ability.
From enrollment to 2 years post-operation
Change from Baseline in NOCISCORE at 3 Months
Assessed via MRI, decreases in pain biomarkers within the intervertebral disc will be measured using Magnetic Resonance Spectroscopy (MRS). MRS is non-invasive. The data is analyzed and summarized in a NOCIGRAM report, which provides an objective analysis of the pain biomarkers observed during a preoperative MRI scan. The NOCISCORE measures six biomarker ratios associated with pain generation for each disc. The scores for each disc level are categorized into NOCI+, Mild, and NOCI-, from most 'painful' to 'least painful' levels.
From enrollment to 3 months post-operation
Change from Baseline in NOCISCORE at 1 Year
Assessed via MRI, decreases in pain biomarkers within the intervertebral disc will be measured using Magnetic Resonance Spectroscopy (MRS). MRS is non-invasive. The data is analyzed and summarized in a NOCIGRAM report, which provides an objective analysis of the pain biomarkers observed during a preoperative MRI scan. The NOCISCORE measures six biomarker ratios associated with pain generation for each disc. The scores for each disc level are categorized into NOCI+, Mild, and NOCI-, from most 'painful' to 'least painful' levels.
From enrollment to 1 year post-operation
Change from Baseline in NOCISCORE at 2 Years
Assessed via MRI, decreases in pain biomarkers within the intervertebral disc will be measured using Magnetic Resonance Spectroscopy (MRS). MRS is non-invasive. The data is analyzed and summarized in a NOCIGRAM report, which provides an objective analysis of the pain biomarkers observed during a preoperative MRI scan. The NOCISCORE measures six biomarker ratios associated with pain generation for each disc. The scores for each disc level are categorized into NOCI+, Mild, and NOCI-, from most 'painful' to 'least painful' levels.
From enrollment to 2 years post-operation
Secondary Outcomes (11)
Change from Baseline in Patient Reported Pain at 3 Months
From enrollment to 3 Months post-operation
Change from Baseline in Patient Reported Pain at 6 Months
From enrollment to 6 Months post-operation
Change from Baseline in Patient Reported Pain at 1 Year
From enrollment to 1 Year post-operation
Change from Baseline in Patient Reported Pain at 2 Years
From enrollment to 2 years post-operation
Change from Baseline in Patient Reported Disability at 3 Months
From enrollment to 3 Months post-operation
- +6 more secondary outcomes
Study Arms (2)
BMAC Group
ACTIVE COMPARATORAdministration of one 1-2cc intradiscal Bone Marrow Aspirate Concentrate (BMAC) injection during lumbar microdiscectomy surgery.
Control Group
NO INTERVENTIONStandard of care lumbar microdiscectomy surgery without the BMAC injection.
Interventions
Dosage Form: Autologous intradiscal injection Dosage: 1-2 cc's Frequency: Once, during surgery Duration: N/A
Eligibility Criteria
You may qualify if:
- Male or female patients ≥ 18 years of age
- Clinically and/or radiographically (MRI) confirmed diagnosis of degenerative disc disease of the lumbar spine, lumbar disc herniation, and indication for lumbar microdiscectomy surgery
- Unresponsive to conservative/non-operative treatment for \>3 months
- Psychosocial, mental and physical ability to understand and to adhere to this protocol, especially adhering to the visit schedule follow-ups and observe the treatment plan
You may not qualify if:
- Prisoners
- Individuals who are not yet adults (infants, children, teenagers)
- Individuals who are not able to clearly understand English
- Adults with diminished capacity to consent
- Major cognitive impairment causing to inability to understand and provide informed consent
- Active malignancy
- Active chronic or acute infection
- Autoimmune disorder that impacts the lumbar spine (ankylosing spondylitis, lupus e.g.)
- Bone marrow-derived or non-bone marrow-derived cancer
- Low platelet count or clotting disorders
- Prior surgery at the level to be treated or the adjacent level
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Weill Medical College of Cornell Universitylead
- Aclarioncollaborator
Study Sites (1)
NewYork-Presbyterian/Weill Cornell Medical Center
Manhattan, New York, 10065, United States
Related Publications (9)
Zhang W, Sun T, Li Y, Yang M, Zhao Y, Liu J, Li Z. Application of stem cells in the repair of intervertebral disc degeneration. Stem Cell Res Ther. 2022 Feb 11;13(1):70. doi: 10.1186/s13287-022-02745-y.
PMID: 35148808BACKGROUNDElabd C, Centeno CJ, Schultz JR, Lutz G, Ichim T, Silva FJ. Intra-discal injection of autologous, hypoxic cultured bone marrow-derived mesenchymal stem cells in five patients with chronic lower back pain: a long-term safety and feasibility study. J Transl Med. 2016 Sep 1;14(1):253. doi: 10.1186/s12967-016-1015-5.
PMID: 27585696BACKGROUNDMochida J, Sakai D, Nakamura Y, Watanabe T, Yamamoto Y, Kato S. Intervertebral disc repair with activated nucleus pulposus cell transplantation: a three-year, prospective clinical study of its safety. Eur Cell Mater. 2015 Mar 20;29:202-12; discussion 212. doi: 10.22203/ecm.v029a15.
PMID: 25794529BACKGROUNDNoriega DC, Ardura F, Hernandez-Ramajo R, Martin-Ferrero MA, Sanchez-Lite I, Toribio B, Alberca M, Garcia V, Moraleda JM, Gonzalez-Vallinas M, Sanchez A, Garcia-Sancho J. Treatment of Degenerative Disc Disease With Allogeneic Mesenchymal Stem Cells: Long-term Follow-up Results. Transplantation. 2021 Feb 1;105(2):e25-e27. doi: 10.1097/TP.0000000000003471. No abstract available.
PMID: 33492116BACKGROUNDJerome MA, Lutz C, Lutz GE. Risks of Intradiscal Orthobiologic Injections: A Review of the Literature and Case Series Presentation. Int J Spine Surg. 2021 Apr;15(s1):26-39. doi: 10.14444/8053. Epub 2021 Apr 21.
PMID: 34376494BACKGROUNDPettine KA, Murphy MB, Suzuki RK, Sand TT. Percutaneous injection of autologous bone marrow concentrate cells significantly reduces lumbar discogenic pain through 12 months. Stem Cells. 2015 Jan;33(1):146-56. doi: 10.1002/stem.1845.
PMID: 25187512BACKGROUNDYoshikawa T, Ueda Y, Miyazaki K, Koizumi M, Takakura Y. Disc regeneration therapy using marrow mesenchymal cell transplantation: a report of two case studies. Spine (Phila Pa 1976). 2010 May 15;35(11):E475-80. doi: 10.1097/BRS.0b013e3181cd2cf4.
PMID: 20421856BACKGROUNDOrozco L, Soler R, Morera C, Alberca M, Sanchez A, Garcia-Sancho J. Intervertebral disc repair by autologous mesenchymal bone marrow cells: a pilot study. Transplantation. 2011 Oct 15;92(7):822-8. doi: 10.1097/TP.0b013e3182298a15.
PMID: 21792091BACKGROUNDComella K, Silbert R, Parlo M. Effects of the intradiscal implantation of stromal vascular fraction plus platelet rich plasma in patients with degenerative disc disease. J Transl Med. 2017 Jan 13;15(1):12. doi: 10.1186/s12967-016-1109-0.
PMID: 28086781BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Roger Hartl, MD
NewYork Presbyterian-Weill Cornell Medicine
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 27, 2026
First Posted
February 4, 2026
Study Start (Estimated)
May 1, 2026
Primary Completion (Estimated)
January 1, 2030
Study Completion (Estimated)
December 1, 2030
Last Updated
April 16, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ANALYTIC CODE
- Time Frame
- Immediately following publication. No end date.
- Access Criteria
- Anyone who wishes to access the data, for any purpose, may do so indefinitely at (Link to be included).
Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices).