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AAN headline "Progressive MS. Looking for Answers Now."

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    AAN headline "Progressive MS. Looking for Answers Now."

    This article just popped into my mailbox. Notice reference to rituxan "cousin" which is the drug I posted about recently.:



    People who live with progressive MS have many questions, but one I hear often is, “When will there be treatment options for me?” Based on what I saw and heard at last week’s AAN, I’m pleased to report that researchers from around the world are making important progress toward treatments and therapies for people living with progressive MS.

    Several groups presented results or updates from large, ongoing studies involving people living with primary-progressive MS: one, a study of oral laquinimod, an experimental immunomodulator, in 375 people with primary-progressive MS which recently began recruitment ; second, a clinical trial of oral ibudilast, an anti-inflammatory enzyme used in Japan, recruiting 250 people with primary- or secondary-progressive MS; and third, a study of ocrelizumab – an antibody cousin of rituximab delivered by infusion – in 740 people with primary-progressive MS that has completed enrollment. No results are available yet, but some should be next year, and it’s encouraging to see that these trials are getting under way. I hope the findings provide us with new treatment approaches for people with progressive MS. (Abstracts # P7.210, P7.017)

    One aspect of research into treatments for progressive MS may not seem very intuitive: Sometimes scientists need to test treatments in people with very early signs of the disease, such as optic neuritis, an inflammation of the optic (eye) nerve that is often the first symptom of MS, much before progression is even evident. They do this because the nerve damage – and if successful, the repair or protection from damage – is more easily observed in this single location.

    That brings us to exciting results from a trial led by Dr. Raju Kapoor (University College London), which recruited 86 people with optic neuritis. They were randomly assigned to receive either phenytoin – an FDA approved oral therapy used to treat epilepsy – or a placebo for 3 months to assess whether the phenytoin could help to protect the retinal nerve fiber layer at the back of the eye from damage. Of those completing the study, on average people who received phenytoin had 30% less damage to the nerve fiber layer compared to those who received placebo. The results raise the possibility of “repurposing” a therapy already on the market with a long track record of use. We need to confirm these results in a larger study to really understand if phenytoin can truly protect the nervous system from damage that leads to MS progression. (Abstract # PL2.005)

    In another study, 154 people with primary- or secondary-progressive MS were given experimental MD1003 (concentrated biotin, a B vitamin), or an inactive placebo, for 48 weeks. The results showed that 12.6% of those given MD1003 showed improvement in disability, using the EDSS scale that measures disability progression or improvement in a timed walk, versus none of those on placebo, and there were no serious safety issues reported. More research is needed to figure out who might benefit from this approach and why only 12% responded. The manufacturer, MedDay Pharma, says that another trial is underway in people with MS and results are expected later this year. (Abstract #PL2.002)

    Finally, I was impressed with a study from Dr. Mika Komori and a team at the National Institutes of Health that looked “behind the scenes” to try and better understand why immune-modulating treatments have not succeeded in progressive forms of MS as they have in relapsing MS. The team examined spinal fluid samples from 386 people with all types of MS as well as people without MS, to determine the exact numbers and characteristics of various immune cells. What they observed is that attacking immune cells in people with progressive MS were more likely to be holed up in the brain and spinal cord, whereas the cells in people with relapsing forms were mobile and circulating. What does this mean? It may be that, for treatments to succeed at modulating inflammation and/or nerve damage in progressive MS, the therapies will have to be able to track the bad cells within the central nervous system. (Abstract #S12.001)

    Everyone with MS lives with the uncertainty of whether it will progress and whether they will lose the ability to do the things that matter most to them. I’m encouraged by the research I saw last week and strongly believe this kind of research will drive us to find ways to stop progression and restore or repair lost function.

    Anyone can get a preview of the summaries, or abstracts, of presentations to be given at the Academy’s Annual Meeting at this link. Registration is necessary, but is free.

    Tags Progressive MS, Research 2 Appreciate this
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    Linda~~~~

    Be the kind of woman that when your feet hit the floor each morning the devil says:"Oh Crap, She's up!"..

    #2
    Linda, I found the last paper you mentioned particularly interesting too:

    Finally, I was impressed with a study from Dr. Mika Komori and a team at the National Institutes of Health that looked “behind the scenes” to try and better understand why immune-modulating treatments have not succeeded in progressive forms of MS as they have in relapsing MS. The team examined spinal fluid samples from 386 people with all types of MS as well as people without MS, to determine the exact numbers and characteristics of various immune cells. What they observed is that attacking immune cells in people with progressive MS were more likely to be holed up in the brain and spinal cord, whereas the cells in people with relapsing forms were mobile and circulating. What does this mean? It may be that, for treatments to succeed at modulating inflammation and/or nerve damage in progressive MS, the therapies will have to be able to track the bad cells within the central nervous system. (Abstract #S12.001)
    Here is the abstract from the AAN conference:
    [S12.001] Increased intrathecal inflammation in progressive multiple sclerosis


    Mika Komori, Andrew Blake, Yen-Chih Lin, Peter Kosa, Danish Ghazali, Paige Winokur, Muktha Natrajan, Simone Wuest, Elena Romm, Tianxia Wu, Bibiana Bielekova

    Bethesda, MD, USA.

    OBJECTIVE:

    To assess the presence of intrathecal inflammation by combining immunophenotyping of cerebrospinal fluid (CSF) cells with measurements of immune-cell specific soluble biomarkers.

    BACKGROUND:

    The lack of therapeutic efficacy of immunomodulatory therapies in progressive multiple sclerosis (MS) has been interpreted as evidence that neurodegeneration, rather than immunopathology, drives central nervous system (CNS) tissue destruction.

    METHODS:

    The CSF of 386 subjects, including relapsing-remitting (RRMS), secondary-progressive (SPMS), primary-progressive MS (PPMS), non-inflammatory neurological disorders (NIND), other inflammatory neurological disorders (OIND), and healthy donors (HD) was processed in a blinded fashion using standardized protocol. An electroluminescent assay was optimized to quantify soluble CD14 (sCD14), sCD163, sCD21 and sCD27 in the CSF. The cellular origin of these biomarkers was assessed from purified immune cell subtypes. Absolute numbers of each cell subtype were quantified by flow cytometry in 50-fold concentrated CSF. The ratio of specific soluble biomarker per number of CSF cells that secrete it was used to assess mobile (i.e. present in the CSF) versus stationary (i.e. embedded in CNS tissue) pool of immune cells in different patients.

    RESULTS:

    All MS groups had elevated levels of B cell-specific (sCD21) and T cell-specific (sCD27) biomarkers as compared to NIND and HD. Monocyte/microglial biomarkers sCD14 and sCD163 levels were elevated in SPMS and PPMS compared to RRMS and NIND.

    Patients with progressive MS subtypes had also significantly elevated sCD27/T cell ratios in comparison to RRMS.

    CONCLUSIONS:

    Our results indicate that the numbers of intrathecal T and B cells in progressive MS is comparable to RRMS. Instead, the major difference is that in RRMS the immune cells are mobile, while in progressive MS they are predominantly embedded in CNS tissue. This compartmentalization of the adaptive immune responses in both subtypes of progressive MS may be the major reason for the failure of current immunomodulatory treatments.

    _________
    Category - MS and CNS Inflammatory Disease: Clinical Science

    Session: S12: Platform Session: Neuroimmune Mechanisms in Multiple Sclerosis (3:15 PM-5:00 PM)
    Date/Time: Tuesday, April 21, 2015 - 3:15 pm



    The abstract can be seen Only registered and activated users can see links., Click Here To Register....

    Interesting, too, that these researchers are frankly stating that the immunomodulatory treatments just don't work with SPMS. It's unusual to find that stated openly. Usually the issue just hasn't been addressed.
    SPMS diagnosed 1980. Avonex 2001-2004. Copaxone 2006-2009. Glatopa (glatiramer acetate = Copaxone) 12/20 - 3/19/24.

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