ClinicalTrials.gov
ClinicalTrials.gov Menu

MEsenchymal StEm Cells for Multiple Sclerosis (MESEMS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT02403947
Recruitment Status : Recruiting
First Posted : March 31, 2015
Last Update Posted : July 25, 2017
Sponsor:
Information provided by (Responsible Party):
University Hospital, Toulouse

Brief Summary:

Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), which ultimately leads to myelin damage and axonal loss. The disease is complex and multifactorial, but the key pathogenic event appears to be an uncontrolled response of components of the immune system (T and B lymphocytes) to myelin proteins. No definitive treatment is available for MS, however immunomodulatory and immunosuppressant drugs act as disease-modifying agents (DMDs).

Unfortunately, the current treatments demonstrate partial efficacy in targeting the deleterious immune reactions. According to the present knowledge of the pathophysiology of MS, an ideal therapeutic strategy would be to modulate or suppress the aggressive immune process, to protect axons and neurons from degeneration, and to enhance repair and facilitate remyelination.

A specific form of stem cells, called adult mesenchymal stem cells (MSCs), has shown remarkable ability to modulate the immune response. This study will evaluate the safety of injecting MSCs in people with MS.


Condition or disease Intervention/treatment Phase
Multiple Sclerosis Drug: Mesenchymal stem cells Drug: Suspension media Phase 1 Phase 2

Detailed Description:
MSCs have the remarkable ability to modulate the immune response mainly by inhibiting proliferation of T cells and to protect injured tissues through paracrine mechanisms. There is an urgent need to evaluate the real efficacy of MSC transplantation, and its possible position in the current therapeutic armamentarium. An international panel of MS neurology and stem cell experts, as well as immunologists formed an "International Mesenchymal Stem Cells Transplantation" (MSCT) Study Group with the aim to derive a consensus on what cells should be used for transplantation and develop a treatment protocol and an experimental program that will eventually attest to the efficacy of MSC transplantation and understand the mechanism that underlie the benefit. 12 patients with MS will be treated with IV injections of autologous isolated and expanded mesenchymal stem cells. Clinical and objective evaluations will be performed at baseline and during 12 months follow-up.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 12 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Treatment of Multiple Sclerosis With Mesenchymal Stem Cells: Phase I/II Study
Study Start Date : February 2015
Estimated Primary Completion Date : May 2018
Estimated Study Completion Date : May 2018

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Mesenchymal stem cells
At week 0 a single infusion of either ex-vivo expanded autologous MSC or suspension media will be administered intravenously at a dose of 1-2 x 1000000 MSC/Kg body weight. At week 24, another infusion will be performed for cross-over re-treatment: at week 24 treatments will be reversed compared to week 0
Drug: Mesenchymal stem cells
After the sampling of bone-marrow and culture of MSCs by the French Blood Establishment (Midi-Pyrénées), patients will receive an IV injection of MSCs.

Placebo Comparator: Suspension media
At week 0 a single infusion of either ex-vivo expanded autologous MSC or suspension media will be administered intravenously at a dose of 1-2 x 1000000 MSC/Kg body weight. At week 24, another infusion will be performed for cross-over re-treatment: at week 24 treatments will be reversed compared to week 0
Drug: Suspension media
injection suspension media




Primary Outcome Measures :
  1. Safety of MSCs infusion, number, timeframe of occurrence and severity of Adverse Events [ Time Frame: 24 weeks from the first infusion ]
    Safety assessed by number, timeframe of occurrence and severity of Adverse Events

  2. efficacy: number of contrast-enhancing lesions (GEL) at MRI scan [ Time Frame: 24 weeks from the first infusion ]
    total number of contrast-enhancing lesions (GEL) at MRI scan


Secondary Outcome Measures :
  1. Efficacy of the experimental treatment in term of combined MRI activity [ Time Frame: 48 weeks from the first infusion ]
    Number of GEL counted over week 28, 36 and 48 compared with the number of GEL counted over 4, 12 and 24 weeks.

  2. Efficacy assessed by combined unique MRI activity, volume of GEL, and volume of BH [ Time Frame: 24 weeks from the first infusion ]
    Combined unique MRI activity (number of new or enlarging T2, or enhancing or re-enhancing lesions), volume of GEL and volume of black holes (BH) over 4, 12, 24 weeks compared between treatment groups.

  3. Efficacy assessed by combined unique MRI activity, volume of GEL and volume of BH [ Time Frame: 48 weeks from the first infusion ]
    Combined unique MRI activity, volume of GEL and volume of BH over week 28, 36 and 48 compared with the same outcomes over 4, 12 and 24 weeks.

  4. Efficacy: Number of relapses [ Time Frame: 24 weeks from the first infusion ]
    Number of relapses in MSC treatment group vs. placebo group in the first 24 weeks and after cross-over re-treatment in the two groups.

  5. Efficacy: Time to sustained progression of disability [ Time Frame: 24 weeks from the first infusion ]
    Time to sustained progression of disability compared between treatment groups during the first 24 weeks and after cross-over



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age 18 to 50 years
  • Disease duration 2 to 10 years (included)
  • Diagnosis of MS

Relapsing remitting MS (RRMS) not responding to at least a year of attempted therapy with one or more of the approved therapies (beta-interferon, glatiramer acetate, natalizumab, mitoxantrone, fingolimod) as evidenced by one or more of the following:

  • more or egal 1 clinically documented relapse in past 12 months
  • more or egal 2 clinically documented relapses in last 24 months
  • more or egal 1 GEL at MRI performed within the last 12 months

Secondary progressive MS (SPMS) not responding to at least a year of attempted therapy with one or more of the approved therapies (beta-interferon, glatiramer acetate, natalizumab, mitoxantrone, fingolimod) as evidenced by both::

  • With more or egal 1 clinically documented relapse in the last twelve months
  • Without on-going relapses, but with more or egal 1 GEL at MRI performed within the last 12 months.

Primary progressive MS (PPMS) patients with all the following features:

  • an increase ofmore or egal 1 EDSS point (if at inclusion EDSS inferior or egal 5.0) or 0.5 EDSS point (if at inclusion EDSS more or egal 5.5), in the last twelve months
  • more or egal 1 GEL at MRI performed within the last 12 months
  • Positive cerebrospinal fluid (CSF) (oligoclonal banding).

    • EDSS (Expanded Disability Status Scale) 3.0 to 6.5
    • Women of childbearing age with an effective contraception.

Exclusion Criteria:

  • RRMS not fulfilling inclusion criteria
  • SPMS not fulfilling inclusion criteria
  • PPMS not fulfilling inclusion criteria
  • Inferior to 3 months since treatment with any immunosuppressive therapy including natalizumab and fingolimod
  • Inferior or egal to 1 month since last treatment with interferon-beta or glatiramer acetate
  • Corticosteroid treatment Inferior or egal to 30 days
  • Relapse inferior or egal to 60 days
  • Any active or chronic infection including infection with HIV1-2 (Human Immunodeficiency Virus 2) or HTLV I-II (Human T-lymphotropic virus I-II) or Syphilis or chronic Hepatitis B or Hepatitis C inferior to 1 month
  • Previous history of a malignancy other than basal cell carcinoma of the skin or carcinoma in situ that has been in remission for more than one year
  • Severely limited life expectancy by another co-morbid illness
  • History of previous diagnosis of myelodysplasia or previous hematologic disease or current clinically relevant abnormalities of white blood cell counts
  • Pregnancy or risk or pregnancy (this includes patients that are unwilling to practice active contraception during the duration of the study)**
  • eGFR (estimated Glomerular Filtration Rate ) inferior to 60 mL/min/1.73m2 or known renal failure or inability to undergo MRI examination.
  • Inability to give written informed consent in accordance with research ethics board guidelines.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02403947


Contacts
Contact: Michel Clanet, MD, PhD 5 61 77 20 67 ext +33 clanet.m@chu-toulouse.fr
Contact: Nadège Algans 561777204 ext +33 algans.n@chu-toulouse.fr

Locations
France
Purpan Hospital Recruiting
Toulouse, France, 31059
Contact: Michel Clanet, MD,PhD    561772067 ext +33    michel.clanet@inserm.fr   
Sponsors and Collaborators
University Hospital, Toulouse
Investigators
Principal Investigator: Clanet Michel, MD,PhD Neurology Department of Purpan Hospital

Responsible Party: University Hospital, Toulouse
ClinicalTrials.gov Identifier: NCT02403947     History of Changes
Other Study ID Numbers: 12 394 03
First Posted: March 31, 2015    Key Record Dates
Last Update Posted: July 25, 2017
Last Verified: July 2017

Keywords provided by University Hospital, Toulouse:
Multiple Sclerosis
Bone-marrow
Stem cells
Cell therapy

Additional relevant MeSH terms:
Sclerosis
Multiple Sclerosis
Pathologic Processes
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases