- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06325566
Efficacy and Safety of Rexlemestrocel-L Combined With HA* in Participants With Moderate to Severe Chronic Low Back Pain (HyaluronicAcid)
March 15, 2024 updated by: Mesoblast, Ltd.
A Prospective, Multicenter, Randomized, Double-blind, Controlled Study to Evaluate the Efficacy and Safety of a Single Injection of Rexlemestrocel-L Combined With HA in Subjects With Moderate to Severe Chronic Low Back Pain
The primary purpose of this study is to evaluate the efficacy of rexlemestrocel-L+HA compared to control in reducing low back pain at 12 months post-treatment and safety of a single injection of rexlemestrocel-L+HA injected into a lumbar intervertebral disc compared to control through 12 months post-treatment.
Study Overview
Status
Not yet recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
300
Phase
- Phase 3
Expanded Access
Available outside the clinical trial.
See expanded access record.
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: David Nunez
- Phone Number: 512-826-8897
- Email: clinical@mesoblast.com
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Participants with moderate to severe low back pain for a duration of at least six months who have failed at least 3 months of conservative care.
- Participants who have moderate radiographic degeneration of an intervertebral disc from L1 to S1, with a single disc suspected of causing chronic lower back pain (CLBP).
Exclusion Criteria:
- Participants who have been a recipient of prior allogeneic stem cell/progenitor cell therapy for any indication or autologous stem cell/progenitor cell therapy or other biological intervention to repair the index intervertebral disc.
- Participants with low back pain duration of less than 6 months or greater than 60 months.
- Participants who have not received at least 3 months of conservative treatment for back pain without adequate pain relief.
- Participants taking systemic immunosuppressants.
- Participants with osteoporosis.
- Participants with alcohol or substance abuse problems.
- Participants with severe depression or anxiety.
- Participants with cauda equina syndrome; fibromyalgia, symptomatic central vertebral canal stenosis, lumbar spondylitis or other undifferentiated spondyloarthropathy affecting the index disc.
- Participants having undergone a surgical procedure affecting the structure/biomechanics of the disc (e.g., discectomy, intradiscal electrothermal therapy, intradiscal radiofrequency, artificial disc replacement, interbody fusion, laminectomy, etc.) at the index or adjacent levels.
- Participants who have received any lumbar intradiscal injection into the index disc or adjacent discs within three months prior to the start of screening, other than injection of contrast medium for discography.
- Participants who received an epidural steroid injection within 6 weeks prior to informed consent.
- Participants with evidence of neurologic deficit on any component of the lumbar neurological exam at baseline.
- Participants with sacroiliac (SI) joint pain, as determined by a targeted physical exam, or SI joint injection.
- Participants with facet joint pain, as determined by a medial branch block.
- Participants with more than a single painful level.
- Participants with a full thickness annular tear observed on magnetic resonance imaging (MRI) or discography.
- Participants with low back pain that is less than moderate in severity.
- Participants with extreme low back pain.
- Participants who lack moderate to extreme functional limitations/disability.
Note: Other exclusion criteria may apply.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Rexlemestrocel-L + HA
Participants will receive rexlemestrocel-L 2.0 mL injection of approximately 6 million rexlemestrocel-L cells in freeze media mixed in a 1:1 by-volume ratio with hyaluronic acid (HA) solution on Day 0.
|
Rexlemestrocel-L will be combined in 1:1 by-volume ratio with HA solution and the resulting mixture will be administered as intradiscal injection.
|
Sham Comparator: Control Group
Participants will receive saline solution as a sham procedure to simulate the active treatment injection on Day 0.
|
Saline solution injection adjacent to the index disc.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mean Change From Baseline in Daily Average Low Back Pain at 12 Months Post-treatment Based on Visual Analog Scale (VAS) Score
Time Frame: Baseline and Month 12
|
Low back pain intensity will be measured using a VAS ranging from 0-100 millimeter (mm).
A score of 0 represents no pain and 100 represents worst possible pain.
|
Baseline and Month 12
|
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Up to Month 24
|
Up to Month 24
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of 30% VAS Pain Responders at 12 Months Post-treatment
Time Frame: Month 12
|
Responders are defined as participants who have at least a 30% decrease from baseline in daily average low back pain VAS score (measured as the average VAS score over 7 days).
VAS score ranges from 0 (no pain) to 100 (worst possible pain).
|
Month 12
|
Mean Change From Baseline in Quality of Life Measured by Euroqol-5D (EQ-5D) Index Score at 12 Months Post-treatment
Time Frame: Baseline and Month 12
|
The EQ-5D is a generic instrument that consists of 5 dimensions: Mobility, selfcare, usual activities, pain/discomfort, and anxiety/depression, rated over five levels of severity ranging from no issues to extreme issues and the responses can be converted into a single number called an index score.
The index scores are calculated ranging from 0 (worst quality of life) to 1 (perfect quality of life).
|
Baseline and Month 12
|
Percentage of Minimal Pain Responders at 12 Months Post-treatment
Time Frame: Month 12
|
Minimal pain responders are defined as participants who have a low back pain daily average VAS score (measured as the average VAS score over 7 days) of 20 mm or less.
VAS score ranges from 0 (no pain) to 100 (worst possible pain).
|
Month 12
|
Mean Change From Baseline in Function as Measured by Oswestry Disability Index (ODI) Questionnaire Score at 12 Months Post-treatment
Time Frame: Baseline and Month 12
|
ODI scores ten aspects of the participant's home and work life and analgesic use in a range of 0 (least amount of disability) to 5 (severe disability).
The disability index is then calculated by summing the scores for all questions answered, then multiplied by two and reported in a 0 to 100% range where higher numbers indicate a higher level of disability.
|
Baseline and Month 12
|
Percentage of Participants With 30% VAS and 10-point ODI Treatment Success at 12 Months Post-treatment
Time Frame: Month 12
|
Treatment success based on the percentage of participants who have at least a 30% reduction from baseline in daily average low back pain VAS score (measured as the average VAS score over 7 days) with at least a 10-point decrease from baseline ODI score will be reported.
|
Month 12
|
Percentage of Participants Who Ceased Opioid Usage at 24 Months Post-treatment
Time Frame: Month 24
|
Month 24
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Estimated)
May 1, 2024
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
August 1, 2027
Study Registration Dates
First Submitted
March 15, 2024
First Submitted That Met QC Criteria
March 15, 2024
First Posted (Actual)
March 22, 2024
Study Record Updates
Last Update Posted (Actual)
March 22, 2024
Last Update Submitted That Met QC Criteria
March 15, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MSB-DR004
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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