Treatment

Relapsing-remitting multiple sclerosis (RRMS) patients on Gilenya (fingolimod) have fewer relapses and stay on treatment longer than those taking Tecfidera (dimethyl fumarate) or Aubagio (teriflunomide), according to a new study. The research, “Comparison of fingolimod, dimethyl fumarate and teriflunomide for multiple sclerosis,” was published…

Treatment with a single dose of Ocrevus (ocrelizumab) depleted a subset of immune T-cells within two weeks in patients with relapsing multiple sclerosis (MS) or primary progressive MS (PPMS), according to a study. The study, “Ocrelizumab Depletes CD20+ T Cells in Multiple Sclerosis Patients,” was published in the journal Cells. Autoreactive immune T-cells, which attack the body’s own tissues, have been regarded as the primary mediator of MS; however, this view has been challenged by the effectiveness of therapies targeting immune B-cells that contain the CD20 cell surface protein in reducing disease activity. One such therapy is Genentech’s Ocrevus, an anti-CD20 monoclonal antibody, which was first approved in the U.S. in 2017 for patients with relapsing MS or PPMS. Because CD20 is mainly expressed by B-cell precursors and mature B-cells, Ocrevus is often considered to selectively deplete CD20-containing B-cells. However, CD20 is also expressed by highly activated T-cells with the CD3 protein marker, characterized by the increased production of proinflammatory molecules, or cytokines. These T-cells are found in the blood, cerebrospinal fluid — the liquid surrounding the brain and spinal cord — and chronic brain lesions of MS patients, and show an elevated expression of the CD8 and CD45 markers. Off-label use of rituximab (marketed as Rituxan in the U.S. and MabThera in Europe), a lymphoma and rheumatoid arthritis treatment that also targets CD20, has been associated with the depletion of CD20-containing T-cells in MS patients. Therefore, targeting this T-cell subtype has been hypothesized as an additional mechanism for rituximab’s clinical effectiveness. However, scientists did not know whether Ocrevus, which is different from rituximab in terms of CD20 binding and cell toxicity, also depletes CD20-positive T-cells. To address this unknown, a team from Hannover Medical School in Germany analyzed blood samples of MS patients through a technique called multicolor flow cytometry prior to the first dose of Ocrevus and after two weeks, immediately before the second dose. They intended to evaluate the characteristics of the patients’ peripheral blood mononuclear cells, which include T-cells, B-cells, monocytes, and macrophages. A total of 21 patients (13 women) were included, with a median age of 43 years (range 22-65 years). Of the participants, 17 had the relapsing form of the disease for a median of 14.6 years, while four had PPMS for a median of 5.6 years. The analysis found T-cells containing CD20 and CD3 in all patients. These cells accounted for 2.4% of all CD45-expressing lymphocytes — white blood cells that include T- and B-cells — and for a significant proportion (18.4%) of all CD20 cells. Evaluation of the cells’ fluorescence intensity revealed that CD20 levels were significantly lower on T-cells than on B-cells also expressing this marker. Treatment with one dose of Ocrevus substantially lowered the levels of CD20-positive T- and B-cells within two weeks, reflected by a frequency of 0.04% and an absolute cell count decrease from 224.9 to 0.57/microliter. “Our results demonstrate that treatment with [Ocrevus] does not exclusively target B-cells, but also CD20+ T-cells, which account for a substantial amount of CD20-expressing cells,” the researchers wrote. “These findings suggest that CD20+ T-cells might play a pivotal role in the pathogenesis of MS, and we speculate that depletion of CD3+CD20+ cells by anti-CD20 monoclonal antibodies might contribute to the efficacy of anti-CD20 therapy,” they added. However, they also emphasized that the findings need to be confirmed in studies with larger groups of MS patients.

Treating a common animal model of multiple sclerosis (MS) with a typhoid vaccine eased disease symptoms by prompting T helper cells to stop production of a pro-inflammatory factor — interleukin (IL)-17 — and by promoting greater numbers of anti-inflammatory  regulatory T-cells, researchers report. Their study, “Targeting prohibitins at the…

WeHealth by Servier and PathMaker Neurosystems have established a new partnership to develop and commercialize the first neuromodulation technology for noninvasive treatment of spasticity, the companies announced. The agreement establishes an exclusive worldwide distribution arrangement, except for the U.S. and Japan, for PathMaker’s MyoRegulator. The MyoRegulator uses two pairs of…

Australia was one of the first countries to approve the use of Mavenclad (cladribine tablets, 10 mg) to treat patients with highly active relapsing-remitting multiple sclerosis (RRMS). Now, the country’s government has taken another step to ensure this 20-day course treatment is available to the largest number possible of people affected by the disease. Australia’s Prime Minister, Hon. Scott Morrison MP, announced that Merck KGaA’s therapy was included on the Pharmaceutical Benefits Scheme (PBS) listing effective Jan. 1. This will make Mavenclad affordable for about 6,200 patients each year who are already accessing PBS-subsidized medicines for MS. (Of note, Merck KGaA is known as EMD Serono in the U.S. and Canada.) This was made possible by the joint effort of MS Australia, MS Research Australia, clinicians and members of the MS community who, after successive submissions, achieved a positive recommendation by the Pharmaceutical Benefits Advisory Committee (PBAC) to list Mavenclad on PBS as a treatment for RRMS. Australia's government will cover almost all costs of Mavenclad, which will mean that patients will have to pay only $40.30 per prescription, or $6.50 for concessional patients. “Thanks to our strong economic management, we’ve ensured that every new, essential medicine recommended for listing by the Pharmaceutical Benefits Advisory Committee receives government subsidy to make it affordable for all Australians,” the Prime Minister said in a press release. Mavenclad was developed to target immune T- and B-cells that trigger relapsing MS without suppressing the entire immune system. To be taken for a maximum of 20 days over two years, the oral drug has shown it helps MS patients remain relapse-free for up to four years, while supporting the “reset” of the immune system. Australia's regulatory agency decided to approve Mavenclad based on the findings of a number of clinical trials, including the Phase 3 CLARITY (NCT00213135), CLARITY EXTENSION (NCT00641537), and ORACLE-MS (NCT00725985) studies, as well as the Phase 2 trial ONWARD study (NCT00436826), and the long-term PREMIERE (NCT01013350) trials. These clinical studies involved more than 2,700 RRMS patients, some of whom were followed for more than 10 years. Overall, the trials showed that Mavenclad significantly reduced relapse rates, disability progression, and brain atrophy. Doctors recommend the therapy for patients who failed to respond to, or are unable to tolerate, other MS treatments.

Immune cells in the intestine may reduce neuroimflammation in multiple sclerosis (MS) patients, a pre-clinical study suggests. Moreover, the augmented number of these cells was sufficient to suppress brain inflammation in an MS mouse model. The findings were reported in the study “Recirculating Intestinal IgA-Producing Cells Regulate Neuroinflammation via…

One of the toughest decisions facing someone with MS is whether to begin treatment with a disease-modifying therapy (DMT). Equally tough, I think, is deciding which DMT road to travel — because there are three roads that can be followed. One path starts you on a simple, first-level medication.

Lowering body temperature helps to improve exercise and functional capability in multiple sclerosis (MS) patients by preventing disease worsening, researchers in  Greece report. The study with that finding, “Impact of pre-cooling therapy on the physical performance and functional capacity of multiple sclerosis patients: A systematic review,” was published in…

Banner Life Sciences has received tentative approval from the U.S. Food and Drug Administration (FDA) for its new drug application (NDA) for Bafiertam (monomethyl fumarate), a novel bioequivalent of Biogen’s Tecfidera (dimethyl fumarate) for the treatment of relapsing-remitting multiple sclerosis (RRMS). Final approval is expected no later than…

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question was inspired by the forum topic “Do you know any natural remedies that help fight inflammation?“, from May…

Multiple Sclerosis News Today brought you daily coverage of key findings, treatment developments, and clinical trials related to multiple sclerosis (MS) throughout 2018. We look forward to reporting more news to patients, family members, and caregivers dealing with MS during 2019. Here are the top 10 most-read articles of…

  There are more than a dozen disease-modifying therapies available to treat MS. Some are shots, some are infusions, and some are pills. Some are more effective than others. The marketing intelligence company Spherix Global Insights regularly surveys which of these treatments are being used by neurologists and…

Treatment with autologous hematopoietic stem cell transplant (aHSCT) led to a sustained decrease in disability and almost no clinical relapses in patients with relapsing-remitting multiple sclerosis (RRMS) who had failed to respond to prior immunosuppressive therapies, an Australian Phase 2 trial shows. Trial findings were published in the study, “Prospective phase…

Alkermes filed a request for the approval of diroximel fumarate (BIIB098) to treat relapsing forms of multiple sclerosis (MS) with the U.S. Food and Drug Administration (FDA). If approved, diroximel fumarate will be marketed by Biogen in the U.S., likely under the brand name Vumerity. Alkermes and Biogen are working…

Researchers at the Ural Federal University (UrFU) in Russia have developed a neuro-electrostimulation system that has the potential to treat different types of brain disorders, including multiple sclerosis (MS). The system allows physicians to treat patients by remotely controlling the delivered electric pulse through a smartphone or tablet. Details…

Ocrevus (ocrelizumab, by Genentech) is now available through the National Health System (NHS) of Scotland to treat patients with relapsing-remitting multiple sclerosis (RRMS). The decision by the Scottish Medicines Consortium (SMC) to approve Ocrevus’ inclusion for this patient group follows the recommendation made earlier by the U.K.’s…

Living in the U.S., where disease-modifying therapies (DMTs) seem to be prescribed as a matter of course to people with multiple sclerosis (MS), I was surprised that it doesn’t seem to be the case across the pond in the U.K. An article just published on the Multiple…