Efficacy of Intradiscal Injection of BM-MSC in Subjects With Chronic Low Back Pain (LBP) Due to Lumbar Degenerative Disc Disease (DDD) Unresponsive

Phase 3Active Not RecruitingNCT03737461

University Hospital, Montpellier113 enrolled

Overview

This will be a multicenter, prospective, double blind, randomized phase 2/3 trial comparing culture-expanded allogeneic adult BM-MSCs with sham-treated controls. This trial will evaluate the efficacy of intradiscal injection of BM-MSCs in chronic low back pain due to lumbar degenerative disc disease (DDD) unresponsive to conventional therapy . Visual analog scale (VAS) and functional status (by Oswestry Disability Index - ODI) will be evaluated 12 months after treatment, defining responders in case of improvement of VAS for pain of at least 20% and 20 mm between baseline and month 12, or improvement of ODI of 20% between baseline and month 12.

Degenerative disc disease (DDD) presents a large, unmet medical need. One of the most important public health problems, it affects 70 million Europeans, accounts for 42% of patients with chronic low back pain and costs over $100 billion each year in the European Union. DDD results in a disabling loss of mechanical function. Today, no efficient therapy is available. The disease results from degeneration of cartilage discs with loss of the collagen matrix and nucleus pulposus chondrocyte. Chronic cases often receive surgery, which may lead to biomechanical problems and accelerated degeneration of adjacent segments. Our consortium partners have developed and studied stem cell-based, regenerative therapies with encouraging results in phase 1 and 2 trials. Patients exhibited rapid and progressive improvement of functional and pain indexes by 50% within 6 months and by 65% to 78% after 1 year with no side effects. In addition, MRI T2 relaxation measurements demonstrated a significant improvement of cartilage signal. To develop the world's first effective treatment of DDD, RESPINE aims to assess, via a randomized, controlled, phase 3 clinical trial including 112 patients with DDD, the efficacy of an allogenic intervertebral mesenchymal stem cell (MSC)-based therapy. This innovative therapy aims to rapidly (within 3 months) and durably (at least 24 months) reduce pain and disability. In addition, the consortium aims to provide new knowledge on immune response \& safety associated with allogeneic BM-MSC intradiscal injection.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Age between 18 and 60 years. * Symptomatic chronic low back pain unresponsive to conservative therapy (including physical therapy performed during at least 1 month before inclusion and pain medication with level 2 analgesics in failure or intolerant to level during at least 1 month) for at least 3 months. * DDD assessed by (Pfirrmann's score modified Griffith et al) grade 4 to 7 at one level. If second level, it should be adjacent (Pfirrmann's score 1-4 maximum) * Low back Pain baseline \> 40 mm on VAS (0-100). * NSAID washout of at least 2 days before screening * Painkillers washout of at least 24 hours before screening Exclusion Criteria: * Congenital or acquired diseases leading to spine deformations that may upset cell application (hyperlordosis, scoliosis, isthmus lesion, sacralization and hemisacralization). * Symptomatic posterior lumbo-articular osteoarthritis or predominant facet syndrome on Xray or MRI (osteophyte and facet hypertrophy). * Prior to the screening visit, has received: * Oral corticosteroid therapy within the previous 3 months, OR * Intramuscular, intravenous or epidural corticosteroid therapy within the previous 3 months * Spinal segmental instability (defined by lumbar dynamic X-Ray in extension/flexion with antero-post translation \> 3 mm and/or angular mobility \> 15°). * Spinal canal stenosis (Schizas score \> B). * History of spinal infection. * Lumbar disc herniation with non truncated sciatica or cruralgia, as well as lumbar cysts and radiculopathy * Previous discal puncture or previous spine surgery. * DDD on 3 levels, or DDD on 2 levels but not adjacent, or DDD with modic 2 or 3 phases * Patients not eligible to the intravertebral disc surgery * Patients who have the risk to undergo a surgery in the next 6 months * Obesity with body mass index (BMI in Kg/size in m2) greater than 35 (obesity grade II). * Participation in another clinical trial or treatment with another investigational product within 30 days prior to inclusion in the study. * Abnormal blood tests: hepatic (alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) \>1.5 × upper limit of normal (ULN)), renal, pancreatic or biliary disease, blood coagulation disorders, anemia or platelet count of \<100 × 109/ * Significant medical problems, such as uncontrolled hypertension, symptomatic heart failure; or any other clinically relevant condition or current medication that in the opinion of the investigator contra-indicates the use of any of the study or rescue medications.

Locations (9)

UH Montpellier

Montpellier, France

CHU de Nantes

Nantes, France

CHU Saint Antoine

Paris, France

APHP Cochin

Paris, France

BG Klinikum Bergmannstrost

Halle, Germany

Campus Bio-Medico University of Rome

Roma, Italy

Institut de Teràpia Regenerativa Tissular

Barcelona, Spain

Clínica Universidad de Navarra

Pamplona, Spain

Hospital Sagrado Corazón Valladolid

Valladolid, Spain

Outcomes

Primary Outcomes

Change from Baseline Pain Clinical response at 12 months

The clinical response is defined as the Pain relief measure with Visual Analogue Scale (VAS) of at least 20 mm decrease on VAS scale between baseline and month 12.

Time frame: baseline to month 12

Change from Baseline Oswestry Disability Index (ODI) measure at 12 months

at least 20% improvement of functional index ODI at month 12 compared to baseline.

Time frame: baseline to month 12

Secondary Outcomes

Measure disability and quality of life evolution of the patient

Assessed by Short Form-36 Health Survey (SF-36) : The eight sections are vitality, physical functioning, bodily pain, general health, perceptions, physical role functioning, emotional role functioning, social role functioning and mental health A score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.

Time frame: Baseline, 3,6,12 and 24 months

Disability and quality of life evolution

global assessment by the patient and the physician. Overall pain intensity in the lumbar spine (1 = none, 2 = mild, 3 = moderate, 4 = severe, 5 = extreme); patient's global assessment of disease activity (1 = very good, 2 = good, 3 = fair, 4 = poor, 5 = very poor); physician's global assessment of disease activity (1 = very good, 2 = good, 3 = fair, 4 = poor, 5 = very poor) will be performed at 0, 3, 6, 12 and 24 months.

Time frame: baseline, 3,6,12 and 24 months

Pain killers

assessement of consumption of painkillers medication. Rescue medication use will be recorded throughout the study duration by a diary file.

Time frame: baseline, 1, 3,6,12 and 24 months

Measure of the Chronic low back pain

assessement of pain by the Visual Analogue pain Scale (VAS) during 24 months. Min value 0 - max value 100 , where 0 represents no pain and 100 represents the worst pain imaginable.

Time frame: baseline, 1, 3,6,12 and 24 months

Employment and work status

Assessement of employment and work status. For this, patients will be assign to one of 4 categories designated as "employable" which included those who were unemployed due to pain, employed but on sick leave, laid off, or working. The other categories include retired, disabled, and elderly at least 60 years of age, eligible for social security.

Time frame: baseline, 1, 3,6,12 and 24 months

Structural assessment

Evolution of affected disc(s) by quantitative Magnetic Resonance Imaging (MRI) density measurements in T2 and T1spin/echo and T1rho weighted images performed at 0, 6 12 and 24 months used as an indication of disc fluid and glycosaminoglycan (GAG) content. The "quality" of the patient's lumbar disc will be monitored non invasively using T2-weighted MRI sagittal images (Orozco et al., 2011) and, in T1spin/echo MRI. Lumbar disc grading will be performed in the sagittal T2 weighted images by two physicians independently who were experienced in MRI of the spine. They will review each intervertebral disc from L1-2 to L5-S1 by the modified Pfirrmann criteria. The modified Pfirrmann grading system assesses degenerated intervertebral discs by MRI for the asymmetry in disc structure, distinction of the nucleus and the annulus, signal intensity of intervertebral discs and height of intervertebral discs and assigns grade 1 to 8 for disc degeneration (Table by Griffin et al. Spine 2007).

Time frame: baseline, 1, 3,6,12 and 24 months

Evaluation of cost

We will compare the medical and non-medical costs between the two groups of patient. Costs will be identified for a one-year time horizon. For this purpose, resource use in each arm will be collected in physical units in the electronic Case Report Form (eCRF) at each clinical centre as follows: * Acute care medical hospitalisations related to DDD * Acute care surgical hospitalisations related to DDD * Rehabilitation hospitalisations related to DDD * Analgesics * Work disruption Resource use will be valued using production costs specific to each country or to the country having included the highest number of patients, depending on the number of patients actually included in each clinical centre.

Time frame: 24 months

Immune response / Analytical control

The assessment of the biological effect of allogeneic MSC on recipient immune response will be studied by multiparametric flow-cytometry as well as monitoring of anti HLA-I (human leukocyte antigen I) antibodies response.

Time frame: baseline, 1, and 6 months

reporting of Serious Adverse Events (SAE)

Define the safety outcomes of the clinical trial with the record of SAE

Time frame: baseline, 1, 3,6,12 and 24 months

Efficacy of Intradiscal Injection of BM-MSC in Subjects With Chronic Low Back Pain (LBP) Due to Lumbar Degenerative Disc Disease (DDD) Unresponsive

Overview

Conditions

Interventions

Eligibility

Locations (9)

Outcomes

Primary Outcomes

Secondary Outcomes