AzTrials
AzTrials

Lumbar Disc DiseasePhase 2NCT04042844

A Single Dose of BRTX 100 for Patients With Chronic Lumbar Disc Disease (cLDD)

A Phase 2 study testing BRTX-100 and Saline in people with Lumbar Disc Disease, run by BioRestorative Therapies at 19 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This is a double-blind, controlled, randomized study with blinded assessments using a single dose. Subjects that have a current diagnosis of chronic lumbar disc disease and meet eligibility criteria will be enrolled. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Lumbar Disc Disease
What is being tested?
BRTX-100 and Saline
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
99 participants
Where
19 sitesUnited States
Study dates
30 Jun 2022to Dec 2027
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Subject Inclusion Criteria:

A subject is eligible for inclusion if all the following criteria are met:

  1. A high index of suspicion for discogenic pain, (i.e., painful degenerative disc(s) with or without protrusions less than or equal to 5 mm)
  2. Chronic Lower Back Pain for at least 6 months
  3. Pain commonly provoked by prolonged sitting, forward bending, lifting, twisting, coughing, sneezing, or Valsalva maneuvers
  4. Failure of at least 6 months of conservative back pain care (can include any or all of the following: rest, anti-inflammatory medication, analgesics, narcotics, epidural injections or selective nerve root injections at the target level, facet joint injections, muscle relaxers, massage, acupuncture, chiropractic care)
  5. Failure of supervised therapy (such as physical therapy)
  6. Screening of ≥ 40 mm and ≤ 80 mm on low back pain visual analog scales (VAS) (average pain in the last week)
  7. Screening Oswestry Disability Index (ODI) score ≥ 30 and < 90 on a 100-point scale
  8. No localized and significant pain below beltline (i.e., potential sacroiliac joint pain) without lumbar pain component
  9. Thigh or Leg pain, if present, is non prevailing and of nonradicular origin, i.e., not due to stimulation of nerve roots or dorsal root ganglion of a spinal nerve by compressive forces
  10. Diagnostic medial branch block or facet joint injection (bilateral unless the symptoms are purely unilateral in nature) in the last 12 months prior to the informed consent date indicates no prevailing facet joint involvement
  11. Has degenerative disc disease (DDD) as defined by the following:
  12. Changes from normal disc morphology of the affected disc as defined by radiographic evaluation
  13. Modified Pfirrmann score of 2 to 7 on MRI, may contain a contained protrusion and/or annular tear on MRI
  14. Modified Pfirrmann score of 1 must contain a contained protrusion and/or annular tear on MRI
  15. Modic Grade I or II changes or no change on MRI
  16. Maintained intervertebral disc heights of at least 50% on MRI.
  17. Discography, if not performed within the last 6 months prior to informed consent date, has to be performed if more than one degenerative disc is identified by MRI, and the symptomatic disc cannot be otherwise reasonably determined
  18. If more than one degenerative disc is identified by MRI, no disc shall demonstrate greater degenerative change than the symptomatic disc or contain a protrusion greater than 5mm
  19. Aged ≥18 years of age at the time of consent
  20. Willing and able to provide written informed consent
  21. No evidence of contraindications to the procedure such as pregnancy, active infection, bleeding disorder, or metastatic cancer

Subject Exclusion Criteria:

A subject is not eligible to participate if any of the following criteria are met:

  1. Spinal Deformity (Scoliosis greater than or equal to 20 degrees, spondylolysis, clinically or radiographically significant retrolisthesis or spondylolisthesis) detected on MRI or plain film radiographic assessment
  2. Disc extrusions, sequestered fragments, facet cysts, or greater than moderate spinal stenosis on MRI.
  3. Presence of a Grade V annular fissure observed within the index disc level during discography in a subject for whom provocation discography has been performed
  4. Intervertebral disc with radiographic evidence of Modified Pfirrmann Grade 8 or greater
  5. Any bleeding disorder, intrinsic or extrinsic
  6. Required anticoagulation (with either antiplatelet agents or antithrombotics) that cannot be interrupted for harvest and injection procedures
  7. Platelet count less than or equal to 100,000
  8. International Normalized Ratio (INR) greater than or equal to 1.5
  9. Extreme obesity, as defined by NIH Clinical Guidelines Body Mass Index (BMI greater than or equal to 40)
  10. Clinically relevant instability on flexion-extension as determined by the investigator by overlaying films (flexion \& extension films)
  11. Has undergone any previous lumbosacral spine surgery (e.g. discectomy, laminectomy, foraminotomy, fusion, intradiscal electrothermal therapy, intradiscal radiofrequency thermocoagulation.), ablation of lumbar basiverterbral nerve or therapeutic percutaneous disc intervention
  12. Have any acute or chronic lumbosacral spine fracture
  13. Have a history of lumbosacral epidural steroid injections within 1 month prior to informed consent date.
  14. Planned/expected use of systemic nonsteroidal anti-inflammatory drugs (NSAIDs) within 72 hours prior to study treatment.
  15. Have a known history of hypersensitivity or anaphylactic reaction to dimethyl sulfoxide (DMSO)
  16. Active significant non lumbosacral spinal orthopedic pain generators including, not limited to arthritic hip and/or knee, cervical disc disease
  17. More widespread and ill-defined myofascial pain
  18. Have had treatment with any cellular or biological investigational therapy or device within 6 months of informed consent date and/or plans to participate in any other autologous or allogeneic stem cell/progenitor cell therapy trial during the 2 year follow-up period
  19. Have been a recipient of any lumbosacral intervertebral disc injection for therapeutic purposes
  20. Are transient or has been treated in the last 6 months before enrollment for alcohol and/or drug abuse in an inpatient substance abuse program
  21. Apparent ongoing and poorly controlled psychological or somatic disease that may impact treatment outcomes
  22. Social, familial, or geographical hindrances to compliance with the study protocol or the informed consent process
  23. Known autoimmune disease with primary impact on the musculoskeletal and/or neurological systems (e.g., systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, Sjogren's syndrome, myasthenia gravis, polymyositis/dermatomyositis, Guillain-Barre syndrome, autoimmune vasculitis)
  24. Required chronic immunosuppression
  25. Positive hepatitis C virus (HCV) antibody test
  26. Positive human immunodeficiency virus (HIV) Antigen/Antibody (Ag/Ab) Combo test
  27. Pregnant or lactating women
  28. Women of childbearing potential not protected by a highly effective method of birth control. Highly effective methods of contraception [defined as those, alone or in combination, that result in a low (<1%) failure rate] include, but are not limited to, combined (estrogen- and progestogen-containing) hormonal contraception associated with inhibition of ovulation (either oral, intravaginal, transdermal or injectable), progestogen-only hormonal contraception associated with inhibition of ovulation (either oral, injectable or implantable), intrauterine device, intrauterine hormone-releasing system, bilateral tubal occlusion, vasectomized partner, sexual abstinence, or a double-barrier method (i.e., male condom combined with diaphragm with spermicide). The investigator is responsible for review of medical history, contraception history, menstrual history and recent sexual activity to decrease the risk of including a woman with an undetected early pregnancy. Additionally, the investigator is responsible for determining if, in the investigator's judgment, a woman's planned contraceptive method (including an assessment of her reliability for consistent use of this method) meets the protocol requirement of "highly effective."
  29. Hematology and chemistry values including, but not limited to:
  30. Total bilirubin level 1.5 times institutional upper limit of normal (ULN)
  31. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) 2 x ULN
  32. Absolute neutrophil count (ANC) < 1000/mm3
  33. Hemoglobin less than or equal to 10 g/dL
  34. Creatinine clearance use calculated clearance (Cockcroft-Gault equation) of less than or equal to 50 mL/min
  35. Other labs deemed clinically significant which, in the opinion of the investigator, might influence the subject's health or safety during the trial.
  36. Have any other active medical conditions, medical or psychiatric illness which, in the opinion of the Investigator, would preclude adequate evaluation of the safety and efficacy of the study or put the participant at risk
  37. Inability to comply with the requirements of the study protocol
  38. Actively on workers compensation or no-fault case for this complaint or any other active case or litigation pertaining to their lumbosacral pain.
  39. History of drug or alcohol abuse or documented history of noncompliance with controlled substances that, in the investigator's opinion, could interfere with adequate evaluation of the study drug's safety or efficacy or otherwise make the subject unsuitable for the study.
  40. History of regular, long term, daily opioid drug use (greater than or equal to 30 MME)

Trial locations and contacts

19 sites in 1 country. Contact the study team or a site near you to ask about taking part.

19 sites in 1 country

United States19 sites, 14 recruiting
  • Science Connections

    Austin, Texas, 78758

    Santiago Figuereo, MD, 786-521-8103, SFiguereo@scienceconnections.net

    Glenda Martinez, 786-521-8103, GMartinez@scienceconnections.net

    Recruiting
  • Alabama Clinical Therapeutics, LLC

    Birmingham, Alabama, 35235

    Withdrawn
  • Cleveland Clinic

    Cleveland, Ohio, 44195

    Shrif Costandi, MD, 440-695-4000, Costans2@ccf.org

    Recruiting
  • Clinical Investigations LLC

    Edmond, Oklahoma, 73013

    Withdrawn
  • Cantor Spine Institute

    Fort Lauderdale, Florida, 33306

    Withdrawn
  • Denver Back Pain Specialists, LLC

    Greenwood Village, Colorado, 80111

    Scott Bainbridge, MD, (303)- 327-5511, jscottbainbridge@gmail.com

    Josephine Steinbrecher, (303)- 327-5511, Josephine@denverpaininstitute.com

    Recruiting
  • NCP Center for Clinical Research and Innovation

    Houston, Texas, 77008

    Stefan Gilthorpe, MD, 346-369-1217, info@betterlifehouston.com

    Motahar Qaadri, MD, 346-396-1217, Motahar.Qaadri@whiterockmedicalcenter.com

    Recruiting
  • Coastal Health

    Jacksonville, Florida, 32257

    Christopher Netzel, MD, 904-265-4310, ChNetzel@cspcjax.com

    Marc Lojacono, 904-468-3125, MLojacono@coastalhealth.com

    Recruiting
  • Northwell Health

    New York, New York, 10022

    Sohrab Virk, MD, 516-321-7555, svirk@northwell.edu

    Clare Duthie, 516-751-5044, cduthie@northwell.edu

    Recruiting
  • Coastal Carolina Research Center

    North Charleston, South Carolina, 29406,

    Withdrawn
  • Virginia iSpine Physicians

    Richmond, Virginia, 23235

    Michael DePalma, MD, 804-330-0303 ext. 4, michaeldepalma8@gmail.com

    Devon Withers, 804-330-2611, crc2@vaispine.com

    Recruiting
  • Source Healthcare

    Santa Monica, California, 90403

    Anil Chaganti, 310-574-2777, achaganti@sourcehealthcare.com

    Gabriel Wimowski, 310-574-2777, Gabriel@sourcehealthcare.com

    Recruiting
  • Pain Relief Centers

    St. Petersburg, Florida, 33709

    Robert Guirguis, MD, 727-510-9773, drguirguis@vantagetrials.com

    Alexandra Rowden, 727-453-0402, Arowden@vantagetrials.com

    Recruiting
  • Tampa Pain Relief Center

    Tampa, Florida, 33603

    Jose Rivera, MD, 727-510-9773, drrivera@vantagetrials.com

    Recruiting
  • Florida Pain Relief Center

    Tampa, Florida, 33614

    Jorge Leal, MD, 727-510-9773, drleal@vantagetrials.com

    Recruiting
  • Precision Spine Care

    Tyler, Texas, 75701

    Withdrawn
  • Boomerang Healthcare

    Walnut Creek, California, 94598

    Kat Abtahi, 925-478-5488, kabtahi@boomeranghc.com

    Mulan McNabb, 925-691-9806 ext. 3115, MMcNabb@boomeranghc.com

    Recruiting
  • The Center of Clinical Research, LLC

    Winston-Salem, North Carolina, 27103

    Richard Rauck, MD, 336-765-6181 ext. 152, rrauck1@ccrpain.com

    Emily Blankenship, 336-765-6181, EBlankenship@ccrpain.com

    Recruiting
  • Conquest Research

    Winter Park, Florida, 32789

    Anand Patel, MD, 407-916-0060, anand.patel@conquestresearch.com

    Emily Conte, 407-916-0060, Emily.conte@conquestresearch.com

    Recruiting

Other trials in United States

About this study

Official title: A Phase 2, Double-Blind, Controlled, Randomized Study to Evaluate the Safety and Preliminary Efficacy of a Single Dose Intradiscal Injection of BRTX-100 for Patients With Chronic Lumbar Disc Disease (cLDD)

This is a double-blind, controlled, randomized study with blinded assessments using a single dose. Subjects that have a current diagnosis of chronic lumbar disc disease and meet eligibility criteria will be enrolled. Chronic lumbar disc disease is defined as back and/or radicular pain with degeneration of the disc confirmed by patient history, physical examination, and radiographic measures such as computed tomography (CT), magnetic resonance imaging (MRI), plain film, myelography, discography, or other acceptable means.

Read the detailed description

This is a double-blind, controlled, randomized study with blinded assessments using a single dose. Subjects that have a current diagnosis of chronic lumbar disc disease and meet eligibility criteria will be enrolled. Chronic lumbar disc disease is defined as back and/or radicular pain with degeneration of the disc confirmed by patient history, physical examination, and radiographic measures such as computed tomography (CT), magnetic resonance imaging (MRI), plain film, myelography, discography, or other acceptable means.

Subjects randomized to active treatment will undergo bone marrow harvest for processing into BRTX- 100 for intradiscal injection. Subjects randomized to control will also undergo a bone marrow and blood harvest but only undergo a sham intradiscal injection procedure. Subjects will return to the study site for a visit at Week 2, Week 12, Week 26, Week 52 and Week 104/Early Termination.

The trial will have a Safety Run-In component that will insert a 3+3 design for the initial subjects dosed with BRTX-100 at 40 × 10^6 cells. Specifically, the randomization scheme will be briefly shifted from the overall trial 2:1 randomization to an initial 3:1 allotment of intradiscal BRTX-100 versus control.

As such, four subjects will initially be randomized and administered their agents. There will be a 14-day safety follow-up period that must elapse between dosing of each of the first four (4) subjects. Dosing of each subsequent subject in the Safety Run-In component cannot occur until the independent Medical Monitor (MM) reviews the previously dosed subject's blinded data, including but not limited to physical examination findings, laboratory values and reported adverse events (AEs) and serious adverse events (SAEs), at the completion of the 14-day visit and documents the findings. If no potential dose-limiting toxicity (DLT) is noted by the MM, the MM will approve the dosing of the next subject. If a potential DLT is noted by the MM, the MM will request that an ad hoc Data Safety Monitoring Board (DSMB) review of unblinded data occur per DSMB Charter before the next subject is dosed.

Being tested
BRTX-100, Saline
Medical subject headings
Intervertebral disc disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BRTX-100Biological

    Hypoxic cultured mesenchymal stem cells (MSCs) from autologous bone marrow with autologous platelet lysate.

  • SalineDrug

    Sodium Chloride (0.9%) intravenous infusion preparation is a sterile and non-pyrogenic solution

Study groups in NCT04042844
Study groupRoleWhat they receive
Active Treatment- BRTX-100ExperimentalBRTX-100 consists of a population of hypoxic-cultured bone marrow mononuclear cells highly enriched in mesenchymal stem cells from autologous bone marrow with autologous platelet lysate.
Receives: Biological: BRTX-100
ShamSham comparatorIsotonic saline will be used as a control (sham) in this study. Drug: saline (0.9% sodium chloride). Please note this will be a sham procedure. This isotonic saline will not be injected intradiscally.
Receives: Drug: Saline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Primary Safety Measures

    Report of adverse events (AEs), clinical review and questionnaires for pain, disability and quality of life at Baseline through Week 104/ Early Termination

    • Vital Signs
    • Physical Examination
    • Laboratory Evaluation (hematology and chemistry)
    • Clinical review of MRI changes from Baseline to Week 104 (MRI density measurements in T2 weighted images performed at Baseline, Week 52 and Week 104 with predetermined MRI rating scores)

    Measured: Baseline through Week 104 / Early Termination

  2. Primary Efficacy Measures

    • VAS for Pain Assessment
    • ODI for Functional Assessment

    Primary Efficacy Endpoint:

    Clinical response, defined as at least a 30% decrease in pain as measured on the VAS scale and at least a 30% increase in function based on the ODI at Week 52 as compared to baseline.

    Measured: Baseline through Week 52

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Aug 2019
  2. Study start30 Jun 2022
  3. Primary completionDec 2026 (estimated)
  4. Study completionDec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
All subjects will be randomized (2:1) to receive either intradiscal BRTX-100 or control.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
99 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04042844
Sponsor's protocol ID
CLDD-001
Status last verified
Aug 2025
First submitted
31 Jul 2019
Last updated
26 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing BRTX-100 and Saline in people with Lumbar Disc Disease, run by BioRestorative Therapies at 19 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 26 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 19 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Francisco Silva (1(949)394-0132, FSilva@biorestorative.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary Safety Measures (time frame: Baseline through Week 104 / Early Termination). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Aug 2025.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in