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https://www.readbyqxmd.com/read/28161400/memory-b-cells-are-major-targets-for-effective-immunotherapy-in-relapsing-multiple-sclerosis
#1
REVIEW
David Baker, Monica Marta, Gareth Pryce, Gavin Giovannoni, Klaus Schmierer
Although multiple sclerosis (MS) is considered to be a CD4, Th17-mediated autoimmune disease, supportive evidence is perhaps circumstantial, often based on animal studies, and is questioned by the perceived failure of CD4-depleting antibodies to control relapsing MS. Therefore, it was interestingly to find that current MS-treatments, believed to act via T cell inhibition, including: beta-interferons, glatiramer acetate, cytostatic agents, dimethyl fumarate, fingolimod, cladribine, daclizumab, rituximab/ocrelizumab physically, or functionally in the case of natalizumab, also depleted CD19+, CD27+ memory B cells...
January 31, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28130412/update-on-disease-modifying-therapies-for-multiple-sclerosis
#2
Diana L Vargas, William R Tyor
Multiple sclerosis (MS) is an autoimmune, demyelinating disease of the central nervous system (CNS). It predominantly affects young women and is one of the most common causes of disability in young adults. MS is characterized by formation of white matter lesions in the CNS as a result of inflammation, demyelination, and axonal loss. Treatment has been a focus of neurological research for over 60 years. A number of disease-modifying therapies (DMTs) have become available making MS a treatable disease. These compounds target the inflammatory response in MS...
January 27, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28121528/finally-attention-switches-to-progressive-multiple-sclerosis
#3
Thomas Reinke
The surge of new MS treatments have been for the relapsing-remitting form of the disease. There's hope for sufferers of a different form of MS. By homing in on CD20-positive B cells, ocrelizumab is able to knock them out and other aberrant B cells circulating in the bloodstream.
July 2016: Managed Care
https://www.readbyqxmd.com/read/28057953/daclizumab
#4
Anne P Kim, Danial E Baker
Each month, subscribers to The Formulary Monograph Service receive 5 to 6 well-documented monographs on drugs that are newly released or are in late phase 3 trials. The monographs are targeted to Pharmacy & Therapeutics Committees. Subscribers also receive monthly 1-page summary monographs on agents that are useful for agendas and pharmacy/nursing in-services. A comprehensive target drug utilization evaluation/medication use evaluation (DUE/MUE) is also provided each month. With a subscription, the monographs are are available online to subscribers...
December 2016: Hospital Pharmacy
https://www.readbyqxmd.com/read/28002688/ocrelizumab-versus-placebo-in-primary-progressive-multiple-sclerosis
#5
RANDOMIZED CONTROLLED TRIAL
Xavier Montalban, Stephen L Hauser, Ludwig Kappos, Douglas L Arnold, Amit Bar-Or, Giancarlo Comi, Jérôme de Seze, Gavin Giovannoni, Hans-Peter Hartung, Bernhard Hemmer, Fred Lublin, Kottil W Rammohan, Krzysztof Selmaj, Anthony Traboulsee, Annette Sauter, Donna Masterman, Paulo Fontoura, Shibeshih Belachew, Hideki Garren, Nicole Mairon, Peter Chin, Jerry S Wolinsky
Background An evolving understanding of the immunopathogenesis of multiple sclerosis suggests that depleting B cells could be useful for treatment. We studied ocrelizumab, a humanized monoclonal antibody that selectively depletes CD20-expressing B cells, in the primary progressive form of the disease. Methods In this phase 3 trial, we randomly assigned 732 patients with primary progressive multiple sclerosis in a 2:1 ratio to receive intravenous ocrelizumab (600 mg) or placebo every 24 weeks for at least 120 weeks and until a prespecified number of confirmed disability progression events had occurred...
19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28002679/ocrelizumab-versus-interferon-beta-1a-in-relapsing-multiple-sclerosis
#6
RANDOMIZED CONTROLLED TRIAL
Stephen L Hauser, Amit Bar-Or, Giancarlo Comi, Gavin Giovannoni, Hans-Peter Hartung, Bernhard Hemmer, Fred Lublin, Xavier Montalban, Kottil W Rammohan, Krzysztof Selmaj, Anthony Traboulsee, Jerry S Wolinsky, Douglas L Arnold, Gaelle Klingelschmitt, Donna Masterman, Paulo Fontoura, Shibeshih Belachew, Peter Chin, Nicole Mairon, Hideki Garren, Ludwig Kappos
Background B cells influence the pathogenesis of multiple sclerosis. Ocrelizumab is a humanized monoclonal antibody that selectively depletes CD20+ B cells. Methods In two identical phase 3 trials, we randomly assigned 821 and 835 patients with relapsing multiple sclerosis to receive intravenous ocrelizumab at a dose of 600 mg every 24 weeks or subcutaneous interferon beta-1a at a dose of 44 μg three times weekly for 96 weeks. The primary end point was the annualized relapse rate. Results The annualized relapse rate was lower with ocrelizumab than with interferon beta-1a in trial 1 (0...
19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/27960628/antibodies-to-watch-in-2017
#7
Janice M Reichert
Over 50 investigational monoclonal antibody (mAb) therapeutics are currently undergoing evaluation in late-stage clinical studies, which is expected to drive a trend toward first marketing approvals of at least 6-9 mAbs per year in the near-term. In the United States (US), a total of 6 and 9 mAbs were granted first approvals during 2014 and 2015, respectively; all these products are also approved in the European Union (EU). As of December 1, 2016, 6 mAbs (atezolizumab, olaratumab, reslizumab, ixekizumab, bezlotoxumab, oblitoxaximab) had been granted first approvals during 2016 in either the EU or US...
February 2017: MAbs
https://www.readbyqxmd.com/read/27813441/primary-progressive-multiple-sclerosis-current-therapeutic-strategies-and-future-perspectives
#8
Alberto Gajofatto, Marco Turatti, Maria Donata Benedetti
Multiple sclerosis (MS) is a chronic inflammatory condition of the central nervous system with heterogeneous features. Primary progressive (PP) MS is a rare disease subtype characterized by continuous disability worsening from onset. No disease-modifying therapy is currently approved for PP MS due to the negative or inconsistent results of clinical trials conducted on a wide range of interventions, which are reviewed in the present paper. Areas covered: The features and results of randomized trials of disease-modifying treatments for PP MS are discussed, including immunosuppressants, immunomodulators, monoclonal antibodies, and putative neuroprotective agents...
November 4, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27756172/safety-of-monoclonal-antibodies-for-the-treatment-of-multiple-sclerosis
#9
Marisa P McGinley, Brandon P Moss, Jeffrey A Cohen
Monoclonal antibodies are a potent therapeutic approach for relapsing-remitting multiple sclerosis. This group of medications comprises diverse mechanisms of action resulting in both shared and unique adverse effects. Areas covered: The major trials and safety profiles of natalizumab, alemtuzumab, daclizumab, rituximab, and ocrelizumab are discussed. While each drug has a unique safety profile, one of the potential safety concerns for all of these drugs is infection, including for some progressive multifocal leukoencephalopathy...
January 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/27718747/anti-cd20-monoclonal-antibodies-in-multiple-sclerosis
#10
Irene Del Pilar Moreno Torres, Antonio García-Merino
INTRODUCTION: The therapeutic utility of the anti-CD20 monoclonal antibodies (mAbs) is currently being evaluated in multiple sclerosis (MS) in line with the better understanding of the role of B lymphocytes in MS pathogenesis. AREA COVERED: We conducted a literature search using Medline/Pub Med database of basic research and available controlled trials about anti-CD20 mAbs in MS. Additionally, ongoing studies were identified in the ClinicalTrials.gov database. B cells exert multiple inflammatory and regulatory functions playing an important role in MS pathogenesis as is demonstrated by the production of autoantibodies, infiltration of B cells in MS lesions and the formation of ectopic B cell follicle-like structures in meninges, among others...
October 10, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27552111/ocrelizumab-for-the-treatment-of-relapsing-remitting-multiple-sclerosis
#11
Til Menge, Divyanshu Dubey, Clemens Warnke, Hans-Peter Hartung, Olaf Stüve
INTRODUCTION: Despite recent advances in pharmacological management, multiple sclerosis (MS), an autoimmune disease of the central nervous system, remains a leading cause of disability. In relapsing-remitting (RR)MS, neurologists most commonly utilize immunomodulatory or immunosuppressive agents to benefit their patients. With the introduction of humanized monoclonal antibodies (mAbs) ablation of distinct immune populations has become possible. Depletion of B cells by anti-CD20 mAbs has repeatedly proven to be a very rapid and effective means to diminish disease activity in RRMS...
October 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27485081/perspectives-of-ofatumumab-as-cd20-targeted-therapy-in-rheumatoid-arthritis-and-other-autoimmune-diseases
#12
Yves Marie Pers, Christian Jorgensen
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune condition viewed as a severe destructive disease. The treatment strategies include anti-CD20 monoclonal antibody (mAb)-targeting B cells. Ofatumumab specifically targets a membrane-proximal epitope on the CD20 molecule distinct from other anti-CD20 antibodies including rituximab and ocrelizumab, and bind the epitope located on the large loop of CD20. This explains a more durable B-cell depletion and a different pharmacodynamic. We review the pharmacodynamic of B-cell depletion and analyze the results in RA and other B-cell-mediated autoimmune diseases...
September 2016: Immunotherapy
https://www.readbyqxmd.com/read/27389598/-cell-depletion-and-myoablation-for-neuroimmunological-diseases
#13
M Diebold, L Kappos, T Derfuss
BACKGROUND: The treatment of autoimmune disorders of the nervous system is based on interventions for the underlying immune phenomena. OBJECTIVE: To summarize concepts of cell depletion and myeloablation studied in the context of neuroimmunological disorders. METHOD: Evaluation of the available literature on multiple sclerosis as the most widely studied neuroimmunological entity. RESULTS: Three concepts have been introduced: classical immunosuppressants, such as azathioprine, mitoxantrone and cyclophosphamide exert general lymphopenic effects and thereby moderately decrease disease activity...
August 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27343722/optimising-b-cell-depletion-in-autoimmune-disease-is-obinutuzumab-the-answer
#14
REVIEW
Venkat Reddy, Lekh N Dahal, Mark S Cragg, Maria Leandro
In Rheumatoid Arthritis (RA) and Systemic Lupus Erythematosus (SLE), B-cell depletion therapy using rituximab results in variable clinical responses between individuals, which likely relates to variable B-cell depletion in the presence of immune defects. Outcomes in clinical trials with other type I anti-CD20 mAbs, ocrelizumab and ofatumumab, are comparable to rituximab. A mechanistically different type II mAb, obinutuzumab (OBZ), with greater capacity for B-cell depletion, has recently entered clinical trials in SLE...
August 2016: Drug Discovery Today
https://www.readbyqxmd.com/read/27270678/review-of-the-novelties-from-the-31st-ectrims-congress-2015-presented-at-the-8th-post-ectrims-meeting
#15
REVIEW
O Fernandez, A Rodriguez-Antiguedad, J Olascoaga, C Oreja-Guevara, J M Prieto, M M Mendibe-Bilbao, J A Garcia-Merino, Ll Ramio-Torrenta, R Ginestal, J E Meca-Lallana, L Romero-Pinel, D Munoz, A Saiz, M C Calles-Hernandez, G Izquierdo, L M Villar, P Oliva-Nacarino, C Arnal-Garcia, M Comabella, Ll Brieva, R Arroyo, X Montalban
Renowned national specialists in multiple sclerosis (MS) met, for the eighth year in a row, to give details of the latest novelties presented at the last ECTRIMS Congress 2015, which are included in this review. One of the highlights at this Congress was the new classification of the phenotypes of MS. Both the diagnostic criteria of the neuromyelitis optica spectrum and the problems involved in the differential diagnosis derived from the lack of definition of the radiological spectrum were reviewed. The microbiota comes to the fore as a possible factor determining the disease, together with extrinsic factors such as tobacco, salt ingestion or vitamin D deficiency...
June 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27116720/parenteral-treatment-of-multiple-sclerosis-the-advent-of-monoclonal-antibodies
#16
Barry A Singer
Improved disease control is critical for enhancing the lives of those living with multiple sclerosis. With specific immunologic targets, monoclonal antibody (mAb) treatments are highly effective options for relapsing forms of multiple sclerosis. The mechanism, efficacy, and current safety profiles are detailed for the two mAb therapies, natalizumab and alemtuzumab, with regulatory approval in multiple countries. Daclizumab, which targets the interleukin-2 receptor, and ocrelizumab, which depletes B cells, have convincing phase 3 clinical trial data and may very well provide new options in the near future...
April 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27089873/managing-disability-in-progressive-multiple-sclerosis
#17
REVIEW
Divyanshu Dubey, Peter Sguigna, Olaf Stüve
Patients with progressive forms of multiple sclerosis have various symptoms which affect their quality of life significantly including depression, cognitive decline, sleep changes, bladder dysfunction, sexual dysfunction, and spasticity. Despite recent promising results on the effects of ocrelizumab on neurological disability in patients with PPMS, currently none of the immunomodulatory therapies are approved for progressive forms of multiple sclerosis. Therefore, clinicians currently mostly focus on management of well-recognized comorbidities of this disease phenotype in order to improve patients' quality of life...
June 2016: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/27027554/beginning-of-the-end-of-two-stage-theory-purporting-that-inflammation-then-degeneration-explains-pathogenesis-of-progressive-multiple-sclerosis
#18
Lawrence Steinman, Scott S Zamvil
PURPOSE OF REVIEW: The review discusses future directions in research on multiple sclerosis and neuromyelitis optica, as long-held beliefs about these diseases are undermined with data from recent clinical trials. RECENT FINDINGS: Results of clinical trials for registration (phase 3) were reported in the last year. Anti-inflammatory approaches, such as daclizumab high-yield process targeting IL-2 receptor, and ocrelizumab targeting CD20 B cells, confirmed a beneficial role of immune suppression in relapsing-remitting disease...
June 2016: Current Opinion in Neurology
https://www.readbyqxmd.com/read/26970489/therapeutic-strategies-targeting-b-cells-in-multiple-sclerosis
#19
REVIEW
Ron Milo
Multiple sclerosis (MS) is a chronic inflammatory and demyelinating disease of the central nervous system (CNS) that traditionally has been considered to be mediated primarily by T-cells. Increasing evidence, however, suggests the fundamental role of B-cells in the pathogenesis of the disease. Recent strategies targeting B-cells in MS have demonstrated impressive and sometimes surprising results: B-cell depletion by monoclonal antibodies targeting the B-cell surface antigen CD20 (e.g. rituximab, ocrelizumab, ofatumumab) was shown to exert profound anti-inflammatory effect in MS with favorable risk-benefit ratio, with ocrelizumab demonstrating efficacy in both relapsing-remitting (RR) and primary-progressive (PP) MS in phase III clinical trials...
July 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/26788130/the-potential-role-for-ocrelizumab-in-the-treatment-of-multiple-sclerosis-current-evidence-and-future-prospects
#20
REVIEW
Per Soelberg Sorensen, Morten Blinkenberg
B cells play a central role in the pathogenesis in multiple sclerosis (MS), being involved in the activation of proinflammatory T cells, secretion of proinflammatory cytokines, and production of autoantibodies directed against myelin. Hence, the usage of B-cell-depleting monoclonal antibodies as therapy for autoimmune diseases including MS lay near at hand. Rituximab was the first therapeutic B-cell-depleting chimeric monoclonal antibody to be used successfully in MS. Ocrelizumab, a second-generation humanized anti-CD20 antibody, was explored in a large phase II, randomized, placebo-controlled multicentre trial in patients with relapsing-remitting disease...
January 2016: Therapeutic Advances in Neurological Disorders
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