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Bus SR, de Haan RJ, Vermeulen M, van Schaik IN, Eftimov F. Intravenous immunoglobulin for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2024; 2:CD001797. [PMID: 38353301 PMCID: PMC10865446 DOI: 10.1002/14651858.cd001797.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) causes progressive or relapsing weakness and numbness of the limbs, which lasts for at least two months. Uncontrolled studies have suggested that intravenous immunoglobulin (IVIg) could help to reduce symptoms. This is an update of a review first published in 2002 and last updated in 2013. OBJECTIVES To assess the efficacy and safety of intravenous immunoglobulin in people with chronic inflammatory demyelinating polyradiculoneuropathy. SEARCH METHODS We searched the Cochrane Neuromuscular Specialised Register, CENTRAL, MEDLINE, Embase, and two trials registers on 8 March 2023. SELECTION CRITERIA We selected randomised controlled trials (RCTs) and quasi-RCTs that tested any dose of IVIg versus placebo, plasma exchange, or corticosteroids in people with definite or probable CIDP. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcome was significant improvement in disability within six weeks after the start of treatment, as determined and defined by the study authors. Our secondary outcomes were change in mean disability score within six weeks, change in muscle strength (Medical Research Council (MRC) sum score) within six weeks, change in mean disability score at 24 weeks or later, frequency of serious adverse events, and frequency of any adverse events. We used GRADE to assess the certainty of evidence for our main outcomes. MAIN RESULTS We included nine RCTs with 372 participants (235 male) from Europe, North America, South America, and Israel. There was low statistical heterogeneity between the trial results, and the overall risk of bias was low for all trials that contributed data to the analysis. Five trials (235 participants) compared IVIg with placebo, one trial (20 participants) compared IVIg with plasma exchange, two trials (72 participants) compared IVIg with prednisolone, and one trial (45 participants) compared IVIg with intravenous methylprednisolone (IVMP). We included one new trial in this update, though it contributed no data to any meta-analyses. IVIg compared with placebo increases the probability of significant improvement in disability within six weeks of the start of treatment (risk ratio (RR) 2.40, 95% confidence interval (CI) 1.72 to 3.36; number needed to treat for an additional beneficial outcome (NNTB) 4, 95% CI 3 to 5; 5 trials, 269 participants; high-certainty evidence). Since each trial used a different disability scale and definition of significant improvement, we were unable to evaluate the clinical relevance of the pooled effect. IVIg compared with placebo improves disability measured on the Rankin scale (0 to 6, lower is better) two to six weeks after the start of treatment (mean difference (MD) -0.26 points, 95% CI -0.48 to -0.05; 3 trials, 90 participants; high-certainty evidence). IVIg compared with placebo probably improves disability measured on the Inflammatory Neuropathy Cause and Treatment (INCAT) scale (1 to 10, lower is better) after 24 weeks (MD 0.80 points, 95% CI 0.23 to 1.37; 1 trial, 117 participants; moderate-certainty evidence). There is probably little or no difference between IVIg and placebo in the frequency of serious adverse events (RR 0.82, 95% CI 0.36 to 1.87; 3 trials, 315 participants; moderate-certainty evidence). The trial comparing IVIg with plasma exchange reported none of our main outcomes. IVIg compared with prednisolone probably has little or no effect on the probability of significant improvement in disability four weeks after the start of treatment (RR 0.91, 95% CI 0.50 to 1.68; 1 trial, 29 participants; moderate-certainty evidence), and little or no effect on change in mean disability measured on the Rankin scale (MD 0.21 points, 95% CI -0.19 to 0.61; 1 trial, 24 participants; moderate-certainty evidence). There is probably little or no difference between IVIg and prednisolone in the frequency of serious adverse events (RR 0.45, 95% CI 0.04 to 4.69; 1 cross-over trial, 32 participants; moderate-certainty evidence). IVIg compared with IVMP probably increases the likelihood of significant improvement in disability two weeks after starting treatment (RR 1.46, 95% CI 0.40 to 5.38; 1 trial, 45 participants; moderate-certainty evidence). IVIg compared with IVMP probably has little or no effect on change in disability measured on the Rankin scale two weeks after the start of treatment (MD 0.24 points, 95% CI -0.15 to 0.63; 1 trial, 45 participants; moderate-certainty evidence) or on change in mean disability measured with the Overall Neuropathy Limitation Scale (ONLS, 1 to 12, lower is better) 24 weeks after the start of treatment (MD 0.03 points, 95% CI -0.91 to 0.97; 1 trial, 45 participants; moderate-certainty evidence). The frequency of serious adverse events may be higher with IVIg compared with IVMP (RR 4.40, 95% CI 0.22 to 86.78; 1 trial, 45 participants, moderate-certainty evidence). AUTHORS' CONCLUSIONS Evidence from RCTs shows that IVIg improves disability for at least two to six weeks compared with placebo, with an NNTB of 4. During this period, IVIg probably has similar efficacy to oral prednisolone and IVMP. Further placebo-controlled trials are unlikely to change these conclusions. In one large trial, the benefit of IVIg compared with placebo in terms of improved disability score persisted for 24 weeks. Further research is needed to assess the long-term benefits and harms of IVIg relative to other treatments.
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Affiliation(s)
- Sander Rm Bus
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Rob J de Haan
- Clinical Research Unit, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Marinus Vermeulen
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Ivo N van Schaik
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Filip Eftimov
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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Michael MR, Wieske L, Koel-Simmelink MJ, van Schaik IN, Teunissen CE, Eftimov F. Serum B-cell activating factor is not a potential biomarker for disease activity in chronic inflammatory demyelinating polyneuropathy. J Neuroimmunol 2023; 382:578169. [PMID: 37572436 DOI: 10.1016/j.jneuroim.2023.578169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/24/2023] [Accepted: 08/03/2023] [Indexed: 08/14/2023]
Abstract
B-cell activating factor (BAFF) is a crucial cytokine for differentiation and survival of B-cells and correlates to disease activity in some auto-immune diseases. To evaluate BAFF as a biomarker for disease activity in chronic inflammatory demyelinating polyneuropathy (CIDP), serum BAFF levels were measured at varying disease stages: patients starting treatment, patients starting treatment withdrawal, patients in remission and healthy controls. Serum BAFF levels were elevated in patients compared to healthy controls, but did not differ between patients starting treatment and patients in remission. Serum BAFF levels did not change with or predict treatment response or relapse. Serum BAFF is not a responsive biomarker reflecting disease activity in CIDP.
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Affiliation(s)
- Milou R Michael
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, the Netherlands.
| | - Luuk Wieske
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, the Netherlands; Department of Clinical Neurophysiology, St Antonius Hospital, Nieuwegein, the Netherlands
| | - Marleen J Koel-Simmelink
- Amsterdam UMC, VU University Medical Center, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Ivo N van Schaik
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, the Netherlands; Sanquin, Amsterdam, the Netherlands
| | - Charlotte E Teunissen
- Amsterdam UMC, VU University Medical Center, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Filip Eftimov
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, the Netherlands
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3
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Svačina MKR, Lehmann HC. Chronic Inflammatory Demyelinating Polyneuropathy (CIDP): Current Therapies and Future Approaches. Curr Pharm Des 2022; 28:854-862. [PMID: 35339172 DOI: 10.2174/1381612828666220325102840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/08/2022] [Indexed: 11/22/2022]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired immune-mediated polyradiculoneuropathy leading to disability via inflammatory demyelination of peripheral nerves. Various therapeutic approaches with different mechanisms of action are established for the treatment of CIDP. Of those, corticosteroids, intravenous or subcutaneous immunoglobulin, or plasma exchange are established first-line therapies as suggested by the recently revised EAN/PNS guidelines for the management of CIDP. In special cases, immunosuppressants or rituximab may be used. Novel therapeutic approaches currently undergoing clinical studies include molecules or monoclonal antibodies interacting with Fc receptors on immune cells to alleviate immune-mediated neuronal damage. Despite various established therapies and the current development of novel therapeutics, treatment of CIDP remains challenging due to an inter-individually heterogeneous disease course and the lack of surrogate parameters to predict the risk of clinical deterioration.
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Affiliation(s)
- Martin K R Svačina
- Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - Helmar C Lehmann
- Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
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4
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Brand A, De Angelis V, Vuk T, Garraud O, Lozano M, Politis D. Review of indications for immunoglobulin (IG) use: Narrowing the gap between supply and demand. Transfus Clin Biol 2021; 28:96-122. [DOI: 10.1016/j.tracli.2020.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Rajabally YA, Fatehi F. Outcome measures for chronic inflammatory demyelinating polyneuropathy in research: relevance and applicability to clinical practice. Neurodegener Dis Manag 2020; 9:259-266. [PMID: 31580223 DOI: 10.2217/nmt-2019-0009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Outcome measures are recommended in the management of chronic inflammatory demyelinating polyneuropathy (CIDP). Various scales have been proposed in recent years, some now commonly utilized in daily clinical practice. The available evidence base relies itself on randomized controlled trial data obtained over the past 30 years, with several studies using different primary and secondary outcomes. We here review the different outcome measures used in CIDP research in relation to those currently recommended for clinical management. We consider the evidence base for CIDP treatment from the primary and secondary outcomes used in these studies and attempt to assess how this may relate to current clinical practice of routine evaluation of treatment effects and long-term monitoring.
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Affiliation(s)
- Yusuf A Rajabally
- School of Life & Health Sciences & Aston Medical School, Aston University, Birmingham, UK.,Regional Neuromuscular Service, University Hospitals Birmingham, Birmingham, UK
| | - Farzad Fatehi
- Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Aix Marseille University, CNRS (UMR 7339), Centre de Résonance Magnétique Biologique et Médicale, Faculté de Médecine, 27 bd. J. Moulin, 13005 Marseille, France
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6
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Mielke O, Bril V, Cornblath DR, Lawo JP, van Geloven N, Hartung HP, Lewis RA, Merkies ISJ, Sobue G, Durn B, Shebl A, van Schaik IN. Restabilization treatment after intravenous immunoglobulin withdrawal in chronic inflammatory demyelinating polyneuropathy: Results from the pre-randomization phase of the Polyneuropathy And Treatment with Hizentra study. J Peripher Nerv Syst 2019; 24:72-79. [PMID: 30672067 PMCID: PMC6593755 DOI: 10.1111/jns.12303] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/13/2018] [Accepted: 01/12/2019] [Indexed: 11/29/2022]
Abstract
In patients with chronic inflammatory demyelinating polyneuropathy (CIDP), intravenous immunoglobulin (IVIG) is recommended to be periodically reduced to assess the need for ongoing therapy. However, little is known about the effectiveness of restabilization with IVIG in patients who worsen after IVIG withdrawal. In the Polyneuropathy And Treatment with Hizentra (PATH) study, the pre‐randomization period included sudden stopping of IVIG followed by 12 weeks of observation. Those deteriorating were then restabilized with IVIG. Of 245 subjects who stopped IVIG, 28 did not show signs of clinical deterioration within 12 weeks. Two hundred and seven received IVIG restabilization with an induction dose of 2 g/kg bodyweight (bw) IgPro10 (Privigen, CSL Behring, King of Prussia, Pennsylvania) and maintenance doses of 1 g/kg bw every 3 weeks for up to 13 weeks. Signs of clinical improvement were seen in almost all (n = 188; 91%) subjects. During IVIG restabilization, 35 subjects either did not show CIDP stability (n = 21, analyzed as n = 22 as an additional subject was randomized in error) or withdrew for other reasons (n = 14). Of the 22 subjects who did not achieve clinical stability, follow‐up information in 16 subjects after an additional 4 weeks was obtained. Nine subjects were reported to have improved, leaving a maximum of 27 subjects (13%) who either showed no signs of clinical improvement during the restabilization phase and 4 weeks post‐study or withdrew for other reasons. In conclusion, sudden IVIG withdrawal was effective in detecting ongoing immunoglobulin G dependency with a small risk for subjects not returning to their baseline 17 weeks after withdrawal.
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Affiliation(s)
- Orell Mielke
- CSL Behring, Marburg, Germany, and King of Prussia, Pennsylvania
| | - Vera Bril
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada.,Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - David R Cornblath
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - John-Philip Lawo
- CSL Behring, Marburg, Germany, and King of Prussia, Pennsylvania
| | - Nan van Geloven
- Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans-Peter Hartung
- Department of Neurology, UKD and Center for Neurology and Neuropsychiatry, LVR Klinikum, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Richard A Lewis
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, California
| | - Ingemar S J Merkies
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands.,Department of Neurology, St Elisabeth Hospital, Willemstad, Curaçao
| | - Gen Sobue
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Billie Durn
- CSL Behring, Marburg, Germany, and King of Prussia, Pennsylvania
| | - Amgad Shebl
- CSL Behring, Marburg, Germany, and King of Prussia, Pennsylvania
| | - Ivo N van Schaik
- Department of Neurology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
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Sala TP, Crave JC, Duracinsky M, Lepira Bompeka F, Tadmouri A, Chassany O, Cherin P. Efficacy and patient satisfaction in the use of subcutaneous immunoglobulin immunotherapy for the treatment of auto-immune neuromuscular diseases. Autoimmun Rev 2018; 17:873-881. [PMID: 30005853 DOI: 10.1016/j.autrev.2018.03.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 03/06/2018] [Indexed: 01/01/2023]
Abstract
We reviewed the efficacy of SCIg administration in terms of muscle strength maintenance and patient satisfaction comparing with IVIg in the treatment of auto-immune neuromuscular diseases. A systematic review was conducted, and identified studies from databases (PUBMED, EMBASE, EBSCO, Web of Science and Google Scholar) which were analyzed. The methodological quality of the selected publications was evaluated using the Newcastle-Ottawa Scale. Data were extracted from a total of 11 studies Fixed and random-effect model meta-analyses were performed. For the maintenance of muscle strength, Overall Neuropathy Limitations Scale (ONLS) data from 100 patients diagnosed with multifocal mononeuropathy (MMN) or chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) were pooled together. Switching to subcutaneous immunoglobulin administration led to a significant improvement (fixed effects model, p = 0.002). In data collected using the Medical Research Council Scale for Muscle Strength data from 140 patients with a wider range of disorders, a small but significant improvement in overall strength was observed in the SCIg group (p < 0.0001). In addition, the results of two studies measuring health-related quality of life and patient satisfaction were pooled. Data from 49 patients suffering from MMN, CIDP, and a variety of different myopathies demonstrated a small but significant increase in the mean 36-Item Short Form Survey (SF-36) scores (p < 0.0001). A highly significant difference was revealed when comparing data from 119 patients' responses to the Life Quality Index questionnaire (LQI) assessing patient satisfaction (p < 0.0001). This is the first analysis showing that SCIg is more effective than IVIg in improving Patient Reported Outcomes in auto-immune neuromuscular disease. These results should permit a broad range of patients to self-administer immunoglobulin treatments at home, potentially improving patient acceptability while reducing hospital visits and healthcare costs for the treatment of chronic auto-immune neuropathies.
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Affiliation(s)
| | | | - Martin Duracinsky
- AP-HP, Bicetre Hospital, Internal Medicine and Clinical Immunology Department, Kremlin-Bicetre, France; AP-HP, Hotel-Dieu Hospital, Health Economics Clinical Trial Center, Paris, France; University Paris-Diderot, EA7334, Patient-Centered Outcomes Research, Paris, France
| | | | - Abir Tadmouri
- ClinSearch, Health Economics and Outcome Research Department, Malakoff, France
| | - Olivier Chassany
- AP-HP, Hotel-Dieu Hospital, Health Economics Clinical Trial Center, Paris, France; University Paris-Diderot, EA7334, Patient-Centered Outcomes Research, Paris, France
| | - Patrick Cherin
- AP-HP, Pitié-Salpetrière Hospital, Department of Internal Medicine and Clinical Immunology, Paris, France
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8
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Dézsi L, Horváth Z, Vécsei L. Intravenous immunoglobulin: pharmacological properties and use in polyneuropathies. Expert Opin Drug Metab Toxicol 2016; 12:1343-1358. [PMID: 27428464 DOI: 10.1080/17425255.2016.1214715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Intravenous immunoglobulin (IVIg) is increasingly used for the treatment of autoimmune and systemic inflammatory diseases with both licensed and off-label indications. The mechanism of action is complex and not fully understood, involving the neutralization of pathological antibodies, Fc receptor blockade, complement inhibition, immunoregulation of dendritic cells, B cells and T cells and the modulation of apoptosis. Areas covered: First, this review describes the pharmacological properties of IVIg, including the composition, mechanism of action, and adverse events. The second part gives an overview of some of the immune-mediated polyneuropathies, with special focus on the pathomechanism and clinical trials assessing the efficacy of IVIg. A literature search on PubMed was performed using the terms IVIg, IVIg preparations, side effects, mechanism of action, clinical trials, GBS, CIDP. Expert opinion: Challenges associated with IVIg therapy and the treatment possibilities for immune-mediated polyneuropathies are discussed. The availability of IVIg is limited, the expenses are high, and, in several diseases, a chronic therapy is necessary to maintain the immunomodulatory effect. The better understanding of the mechanism of action of IVIg could open the possibility of the development of disease-specific, targeted immune therapies.
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Affiliation(s)
- Livia Dézsi
- a Department of Neurology , University of Szeged , Szeged , Hungary
| | - Zoltán Horváth
- a Department of Neurology , University of Szeged , Szeged , Hungary
| | - László Vécsei
- a Department of Neurology , University of Szeged , Szeged , Hungary.,b MTA-SZTE Neuroscience Research Group , Szeged , Hungary
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Yalvac ME, Arnold WD, Braganza C, Chen L, Mendell JR, Sahenk Z. AAV1.NT-3 gene therapy attenuates spontaneous autoimmune peripheral polyneuropathy. Gene Ther 2016; 23:95-102. [PMID: 26125608 PMCID: PMC4696906 DOI: 10.1038/gt.2015.67] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 05/20/2015] [Accepted: 06/04/2015] [Indexed: 02/06/2023]
Abstract
The spontaneous autoimmune peripheral polyneuropathy (SAPP) model in B7-2 knockout non-obese diabetic mice shares clinical and histological features with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Secondary axonal loss is prominent in the progressive phase of this neuropathy. Neurotrophin 3 (NT-3) is an important autocrine factor supporting Schwann cell survival and differentiation and stimulates neurite outgrowth and myelination. The anti-inflammatory and immunomodulatory effects of NT-3 raised considerations of potential efficacy in the SAPP model that could be applicable to CIDP. For this study, scAAV1.tMCK.NT-3 was delivered to the gastrocnemius muscle of 25-week-old SAPP mice. Measurable NT-3 levels were found in the serum at 7-week postgene delivery. The outcome measures included functional, electrophysiological and histological assessments. At week 32, NT-3-treated mice showed increased hind limb grip strength that correlated with improved compound muscle action potential amplitude. Myelinated fiber density was 1.9 times higher in the NT-3-treated group compared with controls and the number of demyelinated axons was significantly lower. The remyelinated nerve fiber population was significantly increased. These improved histopathological parameters from scAAV1.tMCK.NT-3 treatment occurred in the setting of reduced sciatic nerve inflammation. Collectively, these findings suggest a translational application to CIDP.
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Affiliation(s)
- M E Yalvac
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - W D Arnold
- Department of Physical Medicine and Rehabilitation, The Ohio State University, Columbus, OH, USA
- Department of Neurology, The Ohio State University, Columbus, OH, USA
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - C Braganza
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - L Chen
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - J R Mendell
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Neurology, The Ohio State University, Columbus, OH, USA
| | - Z Sahenk
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Neurology, The Ohio State University, Columbus, OH, USA
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Abstract
UNLABELLED Chronic inflammatory demyelinating polyradiculoneuropathy is a chronic progressive or relapsing and remitting disease with a prevalence of up to 8.9 per 100,000. METHODS This review discusses possible mechanisms, none of which are proven, and describes the evidence for its treatment. RESULTS Cochrane Reviews provide evidence that corticosteroids, intravenous immunoglobulin, and plasma exchange are effective short-term treatments. Attempts to confirm the efficacy of other immunosuppressant agents have not been successful, although they are often used in people whose disease is resistant to the first-line treatments. CONCLUSIONS More and better trials are needed.
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Affiliation(s)
- Richard Hughes
- MRC Centre for Neuromuscular Disease, National Hospital for Neurology and Neurosurgery, PO Box 114, Queen Square, London, WC1N 3BG, UK,
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11
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Mehndiratta MM, Hughes RAC, Pritchard J. Plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2015; 2015:CD003906. [PMID: 26305459 PMCID: PMC6734114 DOI: 10.1002/14651858.cd003906.pub4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an uncommon progressive or relapsing paralysing disease caused by inflammation of the peripheral nerves. If the hypothesis that it is due to autoimmunity is correct, removal of autoantibodies in the blood by plasma exchange should be beneficial. OBJECTIVES To assess the effects of plasma exchange for treating CIDP. SEARCH METHODS On 30 June 2015, we searched the Cochrane Neuromuscular Disease Group Specialized Register, the Cochrane Central Register for Controlled Trials (CENTRAL), MEDLINE, EMBASE, CINAHL Plus, and LILACS. We also scrutinised the bibliographies of the trials, contacted the trial authors and other disease experts, and searched trials registries for ongoing studies. SELECTION CRITERIA Randomised controlled trials (RCTs) or quasi-RCTs in participants of any age comparing plasma exchange with sham treatment or no treatment. DATA COLLECTION AND ANALYSIS Two review authors independently selected the trials, extracted the data, and assessed risk of bias. Where possible the review authors combined data according to the methods of the Cochrane Neuromuscular Disease Review Group. PRIMARY OUTCOME MEASURE one cross-over trial including 18 participants showed after four weeks, 2 (95% confidence interval (CI) 0.8 to 3.0) points more improvement on an 11-point disability scale with plasma exchange (10 exchanges over four weeks) than with sham exchange. Rapid deterioration after plasma exchange occurred in eight of 12 who had improved. SECONDARY OUTCOME MEASURES when we combined the results of this cross-over trial and a trial with 29 participants treated in a parallel-group design, there were 31 points (95% CI 16 to 45) more improvement on an impairment scale (maximum score 280) after plasma exchange (six exchanges over three weeks) than after sham exchange. There were significant improvements in both trials in an electrophysiological measure, the proximally evoked compound muscle action potential, after three or four weeks. Nonrandomised evidence indicates that plasma exchange induces adverse events in 3% to 17% of procedures. These events are sometimes serious. Both trials had a low risk of bias. A trial that showed no significant difference in the benefit between plasma exchange and intravenous immunoglobulin is included in the Cochrane review of intravenous immunoglobulin for this condition. AUTHORS' CONCLUSIONS Moderate- to high-quality evidence from two small trials shows that plasma exchange provides significant short-term improvement in disability, clinical impairment, and motor nerve conduction velocity in CIDP but rapid deterioration may occur afterwards. Adverse events related to difficulty with venous access, use of citrate, and haemodynamic changes are not uncommon. We need more research to identify agents that will prolong the beneficial action of plasma exchange.
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Affiliation(s)
- Man Mohan Mehndiratta
- Janakpuri Superspecialty HospitalDepartment of NeurologyC‐2/B, JanakpuriNew DelhiIndia110058
| | - Richard AC Hughes
- National Hospital for Neurology and NeurosurgeryMRC Centre for Neuromuscular DiseasesPO Box 114Queen SquareLondonUKWC1N 3BG
| | - Jane Pritchard
- Charing Cross HospitalNeuromuscular Unit 3 NorthFulham Palace RoadLondonUKW6 8RF
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Karimi N, Sharifi A, Zarvani A, Cheraghmakani H. Chronic Inflammatory Demyelinating Polyneuropathy in Children: A Review of Clinical Characteristics and Recommendations for Treatment. JOURNAL OF PEDIATRICS REVIEW 2015. [DOI: 10.17795/jpr-2269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Karimi N, Sharifi A, Zarvani A, Cheraghmakani H. Chronic Inflammatory Demyelinating Polyneuropathy in Children: A Review of Clinical Characteristics and Recommendations for Treatment. JOURNAL OF PEDIATRICS REVIEW 2015. [DOI: 10.17795/jpr-2296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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14
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Sommer C. Peripheral neuropathies: current evidence for alternative treatment regimens and treatment combinations. Clin Exp Immunol 2015; 178 Suppl 1:33-5. [PMID: 25546753 DOI: 10.1111/cei.12502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- C Sommer
- University of Würzburg, Würzburg, Germany
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15
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Gilardin L, Bayry J, Kaveri SV. Intravenous immunoglobulin as clinical immune-modulating therapy. CMAJ 2015; 187:257-264. [PMID: 25667260 DOI: 10.1503/cmaj.130375] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Laurent Gilardin
- Unité 872, Institut national de la santé et de la recherche médicale, and Équipe 16: Immunopathologie et immuno-intervention thérapeutique, Centre de recherche des Cordeliers, Université Pierre et Marie Curie and Université Paris Descartes, Paris, France
| | - Jagadeesh Bayry
- Unité 872, Institut national de la santé et de la recherche médicale, and Équipe 16: Immunopathologie et immuno-intervention thérapeutique, Centre de recherche des Cordeliers, Université Pierre et Marie Curie and Université Paris Descartes, Paris, France
| | - Srini V Kaveri
- Unité 872, Institut national de la santé et de la recherche médicale, and Équipe 16: Immunopathologie et immuno-intervention thérapeutique, Centre de recherche des Cordeliers, Université Pierre et Marie Curie and Université Paris Descartes, Paris, France
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Intravenous immunoglobulin treatment in chronic neurological diseases: do we have maintenance dose right? Autoimmune Dis 2014; 2014:962530. [PMID: 25580286 PMCID: PMC4281444 DOI: 10.1155/2014/962530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 11/30/2014] [Indexed: 11/21/2022] Open
Abstract
Objectives. We tried to define, on individual basis, minimal effective maintenance dose of intravenous immunoglobulins (IVIG) in 26 patients with chronic neurological conditions requiring long-term IVIG treatment. Methods. Clinical criteria were reviewed in individual cases (Phase 1) followed by titration phase (Phase 2, 12 months) and posttitration/follow-up phase (Phase 3, 3 months). Objective neurological examination and patient self-reports were used for clinical follow-up. Results. 69.2% of patients reported condition as stable, 26.9% as better, and 3.9% as mildly worse. Original mean monthly dose was 1 g/kg; over the period of 12 months we reduced dose of IVIG to mean dose 0.67 g/kg (range 0.3–2.5 g/kg, P < 0.0001) which meant reduction by 36.4%. We identified 4 nonresponders and diagnosis in one case was reclassified to degenerative disease. In follow-up phase we reduced dose further to 0.60 g/kg. Cumulative monthly dose dropped from 2040 g to 1298 g and to 991 g, respectively. Financial expenses were reduced significantly (by −36.4% during titration phase and by −51.4% during follow-up phase) (comparing with baseline) (P < 0.0001). Conclusion. Individual dose titration leads to significant maintenance IVIG dose reduction with preserved clinical efficacy. Maintenance dose below 1 g/kg (in our study around 0.7 g/kg) has acceptable risk/benefit ratio.
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Danieli MG, Gelardi C, Pedini V, Moretti R, Gabrielli A, Logullo F. Subcutaneous IgG in immune-mediate diseases: proposed mechanisms of action and literature review. Autoimmun Rev 2014; 13:1182-8. [DOI: 10.1016/j.autrev.2014.08.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 07/07/2014] [Indexed: 02/07/2023]
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VIP-expressing dendritic cells protect against spontaneous autoimmune peripheral polyneuropathy. Mol Ther 2014; 22:1353-1363. [PMID: 24762627 DOI: 10.1038/mt.2014.77] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/21/2014] [Indexed: 12/20/2022] Open
Abstract
The spontaneous autoimmune peripheral polyneuropathy (SAPP) model in B7-2 knockout nonobese diabetic mice mimics a progressive and unremitting course of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). In this study, bone marrow-derived dendritic cells (DCs) were transduced to express vasoactive intestinal polypeptide (VIP) using a lentiviral vector (LV-VIP). These transduced DCs (LV-VIP-DCs) were then injected intravenously (i.v.) into 16-week-old (before disease onset) and 21-week-old (after disease onset) SAPP mice in order to prevent or attenuate the disease. Outcome measures included behavioral tests, clinical and histological scoring, electrophysiology, real-time PCR, flow cytometry analyses, and enzyme-linked immunosorbent assay. LV-VIP-DCs were recruited to the inflamed sciatic nerve and reduced the expression of inflammatory cytokines. A single injection of LV-VIP-DC delayed the onset of disease, stabilized, and attenuated clinical signs correlating with ameliorated behavioral functions, reduced nerve demyelination, and improved nerve conduction. This proof-of-principle study is an important step potentially leading to a clinical translational study using DCs expressing VIP in cases of CIDP refractory to standard immunosuppressive therapy.
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Lehmann HC, Hughes RAC, Hartung HP. Treatment of chronic inflammatory demyelinating polyradiculoneuropathy. HANDBOOK OF CLINICAL NEUROLOGY 2014; 115:415-27. [PMID: 23931793 DOI: 10.1016/b978-0-444-52902-2.00023-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a sporadically occurring, acquired neuropathic condition of autoimmune origin with chronic progressive or relapsing-remitting disease course. CIDP is a treatable disorder; a variety of immunosuppressive and immunomodulatory agents are available to modify, impede, and even reverse the neurological deficits and sequelae that manifest in the course of the disease. However, in many cases CIDP is not curable. Challenges that remain in the treatment of CIDP patients are well recognized and include a remarkably individual heterogeneity in terms of disease course and treatment response as well as a lack of objective and feasible measures to predict and monitor the responsiveness to the available therapies. In this chapter an overview of the currently used drugs in the treatment of CIDP patients is given and some important and controversial issues that arise in the context of care for CIDP patients are discussed.
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Affiliation(s)
- Helmar C Lehmann
- Department of Neurology, Heinrich-Heine-University, Düsseldorf, Germany.
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Querol L, Nogales-Gadea G, Rojas-Garcia R, Diaz-Manera J, Pardo J, Ortega-Moreno A, Sedano MJ, Gallardo E, Berciano J, Blesa R, Dalmau J, Illa I. Neurofascin IgG4 antibodies in CIDP associate with disabling tremor and poor response to IVIg. Neurology 2014; 82:879-86. [PMID: 24523485 DOI: 10.1212/wnl.0000000000000205] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To describe the frequency of antibodies against neurofascin in chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and the associated clinical features. METHODS Immunocytochemistry was used to identify antibodies to neurofascin 155 (NF155) and 186. Serum reactivity with paranodes and brain tissue was tested with immunohistochemistry of teased-nerve fibers and rat brain. Antibody titers and immunoglobulin (Ig) G isotypes were determined using ELISA. Clinical information was obtained retrospectively. RESULTS Two of 53 patients, but none of 204 controls, had antibodies to NF155 (p = 0.041). The 2 patients with NF155 antibodies developed severe polyradiculoneuropathy with predominant distal weakness that was refractory to IVIg. Eight additional patients with IVIg-refractory CIDP were then identified from a national database; 2 of them with the same clinical features also had NF155 antibodies. Overall, 3 of the 4 patients with NF155 antibodies had a disabling and characteristic tremor (high amplitude, low frequency, postural, and intention). Patients' antibodies reacted with the paranodes in teased-nerve fibers and with the neuropil of rat cerebellum, brain, and brainstem. Anti-NF155 antibodies were predominantly of the IgG4 isotype in all patients. CONCLUSION Patients with CIDP positive for IgG4 NF155 antibodies constitute a specific subgroup with a severe phenotype, poor response to IVIg, and disabling tremor. Autoantibodies against paranodal structures associate with distinct clinical features in CIDP and their identification has diagnostic, prognostic, and therapeutic implications. CLASSIFICATION OF EVIDENCE This study provides Class IV evidence that autoantibodies to NF155 identify a CIDP subtype characterized by severe neuropathy, poor response to IVIg, and disabling tremor.
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Affiliation(s)
- Luis Querol
- From the Neuromuscular Diseases Unit (L.Q., G.N.-G., R.R.-G., J.D.-M., E.G., R.B., I.I.), Department of Neurology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Centro para la Investigación Biomédica en Red en Enfermedades Neurodegenerativas (L.Q., G.N.-G., R.R.-G., J.D.-M., M.J.S., E.G., J.B., I.I.), CIBERNED, Madrid; Department of Neurology (J.P.), Hospital Clínico de Santiago, Santiago de Compostela; Department of Neurology (A.O.-M.), Hospital Virgen de las Nieves, Granada; Department of Neurology (M.J.S., J.B.), University Hospital Marqués de Valdecilla (IFIMAV) and University of Cantabria; Department of Neurology (J.D.), Hospital Clinic, Universitat de Barcelona-Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona; and Institució Catalana de Recerca i Estudis Avançats (J.D.), Barcelona, Spain
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Treatment of chronic inflammatory demyelinating polyneuropathy: from molecular bases to practical considerations. Autoimmune Dis 2014; 2014:201657. [PMID: 24527207 PMCID: PMC3914592 DOI: 10.1155/2014/201657] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 11/13/2013] [Indexed: 02/07/2023] Open
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an autoimmune disease of the peripheral nervous system, in which both cellular and humoral immune responses are involved. The disease is clinically heterogeneous with some patients displaying pure motor form and others also showing a variable degree of sensory dysfunction; disease evolution may also differ from patient to patient, since monophasic, progressive, and relapsing forms are reported. Underlying such clinical variability there is probably a broad spectrum of molecular dysfunctions that are and will be the target of therapeutic strategies. In this review we first explore the biological bases of current treatments and subsequently we focus on the practical management that must also take into account pharmacoeconomic issues.
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Abstract
Pregnancy creates alterations in maternal physiology which predispose to unique neurologic disorders. Pre-eclampsia, eclampsia, certain types of ischemic and hemorrhagic stroke, reversible cerebral vasoconstriction syndrome, posterior reversible encephalopathy syndrome, and thunderclap headache all appear to share a common origin from vascular endothelial dysfunction, with overlapping clinical presentations. Multiple sclerosis often improves during pregnancy. Compression mononeuropathies may occur in the extremities. Myasthenia gravis may affect second stage labor. Various inflammatory peripheral neuropathies, dystrophies, myopathies may occur during pregnancy. The safety of specific immune suppressants is reviewed. Epilepsy does not have a significant effect upon the course of pregnancy, albeit there is a modest increase in the need for cesarean section. Certain antiepileptic drugs may produce fetal malformations, most notably valproic acid. Brain tumors are rare during pregnancy, but may increase in size due to activation of hormonal receptors on tumor cells surfaces, water retention, and engorged blood vessels.
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Affiliation(s)
- H Steven Block
- Department of Neurology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - José Biller
- Department of Neurology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA.
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Cortese I, Cornblath DR. Therapeutic plasma exchange in neurology: 2012. J Clin Apher 2013; 28:16-9. [PMID: 23420591 DOI: 10.1002/jca.21266] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 01/15/2013] [Indexed: 12/18/2022]
Abstract
In treating neuroimmunological diseases, neurologists have a number of different drugs to choose from ranging from corticosteroids to IVIg to more specific cell based therapies, the latter most frequently from the world of oncology. In some diseases, therapeutic plasma exchange, a procedure rather than a drug, is used. The most obvious advantage of therapeutic plasma exchange is the usually rapid onset of action presumably due to removal of pathogenic auto-antibodies. In some diseases, a single course of therapeutic plasma exchange is used while in others prolonged treatment with therapeutic plasma exchange is used. This article will review the use of therapeutic plasma exchange in neurology and will draw heavily upon recent consensus statements from the American Society for Apheresis and the American Academy of Neurology and by Cochrane reviews.
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Affiliation(s)
- Irene Cortese
- Neuroimmunology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA
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Mahdi-Rogers M, van Doorn PA, Hughes RAC. Immunomodulatory treatment other than corticosteroids, immunoglobulin and plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2013:CD003280. [PMID: 23771584 DOI: 10.1002/14651858.cd003280.pub4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a disease causing progressive or relapsing and remitting weakness and numbness. It is probably due to an autoimmune process. Immunosuppressive or immunomodulatory drugs would be expected to be beneficial. This review was first published in 2003 and has been most recently updated in 2013. OBJECTIVES We aimed to review systematically the evidence from randomised trials of immunomodulatory and immunosuppressive agents other than corticosteroids, immunoglobulin and plasma exchange for CIDP. SEARCH METHODS On 9 July 2012, we searched the Cochrane Neuromuscular Disease Group Specialized Register (July 2012), CENTRAL (2012, Issue 6 in The Cochrane Library), MEDLINE (January 1977 to July 2012), EMBASE (January 1980 to July 2012), CINAHL (January 1982 to July 2012) and LILACS (January 1982 to July 2012). We contacted the authors of the trials identified and other disease experts seeking other published and unpublished trials. SELECTION CRITERIA We sought randomised and quasi-randomised trials of all immunosuppressive agents such as azathioprine, cyclophosphamide, methotrexate, ciclosporin, mycophenolate mofetil, and rituximab and all immunomodulatory agents such as interferon alfa and interferon beta, in participants fulfilling standard diagnostic criteria for CIDP. DATA COLLECTION AND ANALYSIS Two authors independently selected trials, judged their risk of bias and extracted data. We wanted to measure the change in disability after one year as our primary outcome. Our secondary outcomes were change in disability after four or more weeks (from randomisation), change in impairment after at least one year, change in maximum motor nerve conduction velocity and compound muscle action potential amplitude after one year and for those participants who were receiving corticosteroids or intravenous immunoglobulin, the amount of this medication given during at least one year after randomisation. Participants with one or more serious adverse events during the first year was also a secondary outcome. MAIN RESULTS Four trials fulfilled the selection criteria, one of azathioprine (27 participants), two of interferon beta-1a (77 participants in total) and one of methotrexate (60 participants). The risk of bias in the two trials of interferon beta-1a for CIDP and the trial of methotrexate was assessed to be low but bias in the trial of azathioprine was judged high. None of these trials showed significant benefit in the primary outcome (measured only in the methotrexate study) or secondary outcomes selected for this review. Severe adverse events occurred no more frequently than in the placebo groups for methotrexate and interferon beta-1a, but participant numbers were low. There was no adverse event reporting in the azathioprine study. AUTHORS' CONCLUSIONS The evidence from randomised trials does not show significant benefit from azathioprine, interferon beta-1a or methotrexate but none of the trials was large enough to rule out small or moderate benefit. The evidence from observational studies is insufficient to avoid the need for randomised controlled trials to discover whether these drugs are beneficial. Future trials should have improved designs, more sensitive outcome measures and longer durations.
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Observations on chronic inflammatory demyelinating polyneuropathy: A plea for a rigorous approach to diagnosis and treatment. J Neurol Sci 2013; 330:2-3. [PMID: 23663896 DOI: 10.1016/j.jns.2013.04.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 04/11/2013] [Accepted: 04/15/2013] [Indexed: 11/21/2022]
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Hughes RAC, Lunn MPT, Frost C, van Schaik IN. Treatments for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP): an overview of systematic reviews. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2013. [DOI: 10.1002/14651858.cd010369] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Treatment of chronic immune-mediated neuropathies: Impact of the Rare Diseases Centers network in Italy. Rev Neurol (Paris) 2013; 169 Suppl 1:S33-8. [DOI: 10.1016/s0035-3787(13)70058-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Intravenous immunoglobulin inhibits BAFF production in chronic inflammatory demyelinating polyneuropathy - a new mechanism of action? J Neuroimmunol 2013; 256:84-90. [PMID: 23357714 DOI: 10.1016/j.jneuroim.2013.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 12/31/2012] [Accepted: 01/02/2013] [Indexed: 12/21/2022]
Abstract
Chronic-inflammatory demyelinating polyneuropathy (CIDP) is an immune-mediated disease treated with intravenous immunoglobulin (IVIg). The underlying mechanism of action remains incompletely understood. The B-cell activating factor BAFF contributes to B-cell homeostasis and (auto-)antibody production. BAFF was recently identified as one key molecule in the development of autoimmune diseases. Herein, we demonstrate that BAFF serum levels are elevated in CIDP patients. IVIg treatment resulted in a significant decrease of BAFF serum level. In vitro, IVIg inhibited BAFF in monocytes. Consequently, we identified BAFF as a new target for IVIg in CIDP treatment and provide a new, Fcγ-receptor independent, mechanism of action for IVIg.
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Peltier AC, Donofrio PD. Chronic inflammatory demyelinating polyradiculoneuropathy: from bench to bedside. Semin Neurol 2012; 32:187-95. [PMID: 23117943 DOI: 10.1055/s-0032-1329194] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is the most common treatable chronic autoimmune neuropathy. Multiple diagnostic criteria have been established, with the primary goal of identifying neurophysiologic hallmarks of acquired demyelination. Treatment modalities have expanded to include numerous immunomodulatory therapies, although the best evidence continues to be for corticosteroids, plasma exchange, and intravenous immunoglobulin (IVIg). This review describes the pathology, epidemiology, pathogenesis, diagnosis, and treatment of CIDP.
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Affiliation(s)
- Amanda C Peltier
- Department of Neurology, Vanderbilt Medical Center, Medical Center North, Nashville, Tennessee 37232-2551, USA.
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Novaretti MCZ, Dinardo CL. Clinical applications of immunoglobulin: update. Rev Bras Hematol Hemoter 2012; 33:221-30. [PMID: 23049300 PMCID: PMC3415732 DOI: 10.5581/1516-8484.20110058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 03/28/2011] [Indexed: 11/27/2022] Open
Abstract
Human immunoglobulin is the most used blood product in the clinical practice. Immunoglobulin applications have increased quickly since the elucidation of its immunomodulatory and antiinflammatory properties which turned this blood product into a precious tool in the treatment of numerous diseases that present with humoral immune deficiency or that cause immune system dysfunction. Currently, the approved indications for Ig are: primary immunodeficiencies, secondary immunodeficiencies (multiple myeloma or chronic lymphoid leukemia), Kawasaki syndrome, immune thrombocytopenic purpura, Guillain Barré syndrome, graft-versus-host disease following bone marrow transplantation and repeat infections in HIV children. On the other hand, there are numerous "off-label" indications of immunoglobulin, which represent 20-60% of all clinical applications of this drug. It is important to study all these indications and, above all, the scientific evidence for its use, in order to provide patients with a new therapeutic option without burdening the health system. This review results from a wide selection of papers identified in the Pubmed and Lilacs scientific electronic databases. A group of descriptors were used from human immunoglobulin to the names of each disease that immunoglobulin is clinically applied. Our main objective is to list the numerous indications of immunoglobulin, both authorized and "off-label" and to analyze these indications in the light of the most recent scientific evidence.
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Mehndiratta MM, Hughes RAC. Plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2012:CD003906. [PMID: 22972066 DOI: 10.1002/14651858.cd003906.pub3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an uncommon progressive or relapsing paralysing disease caused by inflammation of the peripheral nerves. If the hypothesis that it is due to autoimmunity is correct, removal of autoantibodies in the blood by plasma exchange should be beneficial. OBJECTIVES To evaluate the efficacy of plasma exchange in CIDP. SEARCH METHODS We searched the Cochrane Neuromuscular Disease Group Specialized Register (14 May 2012), CENTRAL (2012, Issue 4), MEDLINE (January 1966 to May 2012), EMBASE (January 1980 to May 2012), CINAHL Plus (January 1937 to May 2012) and LILACS (January 1982 to May 2012). We also scrutinised the bibliographies of the trials, and contacted the trial authors and other disease experts. SELECTION CRITERIA Randomised controlled trials (RCTs) or quasi-RCTs in participants of any age comparing plasma exchange with sham treatment or no treatment. DATA COLLECTION AND ANALYSIS Two authors selected the trials, extracted the data and assessed risk of bias independently. Where possible data were combined according to the methods of the Cochrane Neuromuscular Disease Review Group. PRIMARY OUTCOME MEASURE one cross-over trial including 18 participants showed two (95% confidence interval (CI) 0.8 to 3.0) points more improvement after four weeks on an 11-point disability scale with plasma exchange (10 exchanges over four weeks) than with sham exchange. Rapid deterioration after plasma exchange occurred in eight of 12 who had improved. SECONDARY OUTCOME MEASURES when the results of this trial and another with 29 participants treated in a parallel group design trial were combined, there were 31 points (95% CI 16 to 45, maximum score 280) more improvement in an impairment scale after plasma exchange (six exchanges over three weeks) than after sham exchange. There were significant improvements in both trials in an electrophysiological measure, the proximally evoked compound muscle action potential, after three or four weeks. Non-randomised evidence indicates that plasma exchange induces adverse events in 3% to 17% of procedures. These are sometimes serious. A trial showing no significant difference in the benefit between plasma exchange and intravenous immunoglobulin has been included in the Cochrane review of intravenous immunoglobulin for this condition. AUTHORS' CONCLUSIONS Moderate to high quality evidence from two small trials showed that plasma exchange provides significant short-term improvement in disability, clinical impairment and motor nerve conduction velocity in CIDP but rapid deterioration may occur afterwards. Adverse events related to difficulty with venous access, use of citrate and haemodynamic changes are not uncommon. More research is needed to identify agents which will prolong the beneficial action of plasma exchange.
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Hughes RAC, Mehndiratta MM. Corticosteroids for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2012:CD002062. [PMID: 22895925 DOI: 10.1002/14651858.cd002062.pub2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a progressive or relapsing and remitting paralysing illness probably due to an autoimmune response which should benefit from corticosteroids. Non-randomised studies suggest that corticosteroids are beneficial. Two commonly used corticosteroids are prednisone and prednisolone. Both are usually given as oral tablets. Prednisone is converted into prednisolone in the liver so that the effect of the two drugs is usually the same. Another corticosteroid, called dexamethasone, is more potent and is used in smaller doses. OBJECTIVES To evaluate the efficacy of corticosteroid treatment compared to placebo or no treatment for CIDP and to compare the efficacy of different corticosteroid regimes. SEARCH METHODS We searched the Cochrane Neuromuscular Disease Group Specialized Register (20 February 2012), CENTRAL (2012, Issue 2), MEDLINE (January 1966 to February 2012), and EMBASE (January 1980 to February 2012) for randomised trials of corticosteroids for CIDP. SELECTION CRITERIA We included randomised or quasi-randomised trials of treatment with any form of corticosteroids or adrenocorticotrophic hormone for CIDP, diagnosed by an internationally accepted definition. DATA COLLECTION AND ANALYSIS Two authors extracted the data and assessed risk of bias independently. The primary outcome was intended to be change in disability, with secondary outcomes of change in impairment, maximum motor nerve conduction velocity, or compound muscle action potential amplitude after 12 weeks, and adverse events. MAIN RESULTS In one non-blinded randomised controlled trial (RCT) with 35 eligible participants, the primary outcome for this review was not available. Twelve of 19 participants treated with prednisone, compared with five of 16 participants randomised to no treatment, had improved neuropathy impairment scores after 12 weeks; the risk ratio (RR) for improvement was 2.02 (95% confidence interval (CI) 0.90 to 4.52). Adverse events were not reported in detail, but one prednisone-treated participant died.In a double-blind RCT comparing daily standard-dose oral prednisolone with monthly high-dose oral dexamethasone in 40 participants, none of the outcomes for this review were available. There were no significant differences in remission (RR 1.11; 95% CI 0.50 to 2.45 in favour of monthly dexamethasone) or change in disability or impairment after one year. Eight of 16 in the prednisolone, and seven of 24 in the dexamethasone group deteriorated. Adverse events were similar with each regimen, except that sleeplessness and moon facies (moon-shaped appearance of the face) were significantly less common with monthly dexamethasone.Experience from large non-randomised studies suggests that corticosteroids are beneficial, but long-term use causes serious side effects. AUTHORS' CONCLUSIONS Very low quality evidence from one small, randomised trial did not show a statistically significant benefit from oral prednisone compared with no treatment. Nevertheless, corticosteroids are commonly used in practice. According to moderate quality evidence from one RCT, the efficacy of high-dose monthly oral dexamethasone was not statistically different from that of daily standard-dose oral prednisolone. Most adverse events occurred with similar frequencies in both groups, but sleeplessness and moon facies were significantly less common with monthly dexamethasone. Further research is needed to identify factors which predict response.
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Affiliation(s)
- Richard A C Hughes
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, London, UK.
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Nobile-Orazio E, Cocito D, Jann S, Uncini A, Beghi E, Messina P, Antonini G, Fazio R, Gallia F, Schenone A, Francia A, Pareyson D, Santoro L, Tamburin S, Macchia R, Cavaletti G, Giannini F, Sabatelli M. Intravenous immunoglobulin versus intravenous methylprednisolone for chronic inflammatory demyelinating polyradiculoneuropathy: a randomised controlled trial. Lancet Neurol 2012; 11:493-502. [DOI: 10.1016/s1474-4422(12)70093-5] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jolles S, Stein MR, Longhurst HJ, Borte M, Ritchie B, Sturzenegger MH, Berger M. New Frontiers in Subcutaneous Immunoglobulin Treatment. BIOLOGICS IN THERAPY 2011; 1:3. [PMID: 24392293 PMCID: PMC3873072 DOI: 10.1007/s13554-011-0009-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Indexed: 11/25/2022]
Abstract
Subcutaneous immunoglobulin (SCIG) treatment provides stable serum immunoglobulin G (IgG) levels, is associated with fewer systemic adverse events than intravenous immunoglobulin (IVIG) treatment, and offers the convenience of home therapy. In clinical practice, IVIG is still used preferentially for initiation of treatment in newly diagnosed patients with primary immunodeficiency (PI) and for immunomodulatory therapy, such as treatment of peripheral neuropathies, when high doses are believed to be necessary. The authors discuss recent experience in using SCIG in place of IVIG in these settings. SCIG has been successfully used for initiation of therapy in previously untreated PI patients. Seventeen of 18 PI patients achieved serum IgG levels ≥5 g/L after the loading phase. Daily treatment was well tolerated and provided opportunities for patient/parent training in self-infusion. SCIG has been used for maintenance therapy in multifocal motor neuropathy (MMN) in three recent clinical trials, with good efficacy and tolerability results. Seven of eight MMN patients maintained serum IgG levels of 14-22 g/L with a mean dose of 272 mg/kg/week, had stable muscle strength, and felt comfortable with self-administration. Four patients with polymyositis or dermatomyositis achieved improvement in serum creatine kinase levels and muscle strength with SCIG therapy. Recent experience with SCIG suggests that traditional concepts of immunoglobulin therapy may be challenged to increase available therapy options. SCIG can be used to achieve high IgG levels within several days in untreated PI patients and to maintain high serum levels, as shown in patients with MMN.
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Affiliation(s)
- Stephen Jolles
- University Hospital of Wales, Heath Park, Cardiff, CF14 4XW UK
| | - Mark R. Stein
- Allergy Associates of the Palm Beaches, North Palm Beach, FL USA
| | | | - Michael Borte
- Hospital “St. Georg” GmbH Leipzig, Academic Teaching Hospital of the University of Leipzig, Leipzig, Germany
| | - Bruce Ritchie
- Division of Hematology, Faculty of Medicine, University of Alberta, Edmonton, AB Canada
| | | | - Melvin Berger
- CSL Behring LLC, King of Prussia, PA USA
- Case Western Reserve University, Cleveland, OH USA
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Abstract
OPINION STATEMENT Autoimmune neuromuscular disorders in childhood include Guillain-Barré syndrome and its variants, chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), juvenile myasthenia gravis (JMG), and juvenile dermatomyositis (JDM), along with other disorders rarely seen in childhood. In general, these diseases have not been studied as extensively as they have been in adults. Thus, treatment protocols for these diseases in pediatrics are often based on adult practice, but despite the similarities in disease processes, the most widely used treatments have different effects in children. For example, some of the side effects of chronic steroid use, including linear growth deceleration, bone demineralization, and chronic weight issues, are more consequential in children than in adults. Although steroids remain a cornerstone of therapy in JDM and are useful in many cases of CIDP and JMG, other immunomodulatory therapies with similar efficacy may be used more frequently in some children to avoid these long-term sequelae. Steroids are less expensive than most other therapies, but chronic steroid therapy in childhood may lead to significant and costly medical complications. Another example is plasma exchange. This treatment modality presents challenges in pediatrics, as younger children require central venous access for this therapy. However, in older children and adolescents, plasma exchange is often feasible via peripheral venous access, making this treatment more accessible than might be expected in this age group. Intravenous immunoglobulin also is beneficial in several of these disorders, but its high cost may present barriers to its use in the future. Newer steroid-sparing immunomodulatory agents, such as azathioprine, tacrolimus, mycophenolate mofetil, and rituximab, have not been studied extensively in children. They show promising results from case reports and retrospective cohort studies, but there is a need for comparative studies looking at their relative efficacy, tolerability, and long-term adverse effects (including secondary malignancy) in children.
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Affiliation(s)
- Hugh J. McMillan
- Division of Neurology, Children’s Hospital of Eastern Ontario, Ottawa, Ontario Canada
| | - Basil T. Darras
- Department of Neurology, Children’s Hospital Boston, 300 Longwood Avenue, Boston, MA 02115 USA
| | - Peter B. Kang
- Department of Neurology, Children’s Hospital Boston, 300 Longwood Avenue, Boston, MA 02115 USA
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[Administration of intravenous immunoglobulins in neurology. An evidence-based consensus: update 2010]. DER NERVENARZT 2011; 82:415-6, 418, 420 passim. [PMID: 20577707 DOI: 10.1007/s00115-010-3059-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Our knowledge on the clinical efficacy of intravenous immunoglobulins (IVIg) in neurological diseases has greatly increased in the last 5 years. Liquid formulations with a higher concentration of IVIg have simplified administration. Despite a worldwide increase in plasma production it is still a valuable biological product which is why current indications must be continuously validated. Long-term efficacy of the preparation Gamunex could be demonstrated in patients with chronic inflammatory demyelinating polyneuropathy (CIDP). In acute myasthenic worsening a dose of 1 g IVIg/kg body weight appears to be sufficient for clinical stabilization. New indications, such as the postpolio syndrome or Alzheimer's disease are being explored in clinical trials. In addition to the consensus statement from 2004 the evidence for clinical use of IVIg has been re-evaluated and recommendations are given.
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Struhal W, Hödl S, Mazhar S, Ransmayr G. Acute pandysautonomia – restitutio ad integrum by high prednisolone therapy. Wien Klin Wochenschr 2011; 123:508-11. [DOI: 10.1007/s00508-011-0030-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Accepted: 06/14/2011] [Indexed: 10/18/2022]
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Abstract
OPINION STATEMENT Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired, immune-mediated, non-length-dependent polyradiculoneuropathy that is progressive or relapsing over a period of at least 8 weeks, often evolving over time to a relatively symmetric pattern. Although the exact pathogenesis is unclear, it is thought to be mediated by both cellular and humoral reaction to the peripheral nerve myelin sheath involving nerve roots and proximal and distal nerves. Early medical treatment of CIDP is important to prevent axonal loss occurring as a secondary effect of progressive demyelination. Only three treatments for CIDP have demonstrated benefit in randomized controlled studies: corticosteroids, plasma exchange, and intravenous immunoglobulin. About 25% of patients fail to respond to these treatments or respond inadequately. These treatments have similar efficacy but differ significantly in cost and adverse effects. These factors are considered in treatment selection.
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Mahdi-Rogers M, Swan AV, van Doorn PA, Hughes RA. Immunomodulatory treatment other than corticosteroids, immunoglobulin and plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2010:CD003280. [PMID: 21069674 DOI: 10.1002/14651858.cd003280.pub3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy is a disease causing progressive or relapsing and remitting weakness and numbness. It is probably due to an autoimmune process. Immunosuppressive or immunomodulatory drugs would be expected to be beneficial. OBJECTIVES We aimed to review systematically the evidence from randomised trials of cytotoxic drugs and interferons other than corticosteroids, immunoglobulin and plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. SEARCH STRATEGY We searched the Cochrane Neuromuscular Disease Group Specialised Register (May 2010), The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, Issue 2), MEDLINE (January 1977 to May 2010), EMBASE (January 1980 to May 2010), CINAHL (January 1982 to May 2010) and LILACS (January 1982 to May 2010). We contacted the authors of the trials identified and other disease experts seeking other published and unpublished trials. SELECTION CRITERIA We sought randomised and quasi-randomised trials of all immunosuppressive agents such as azathioprine, cyclophosphamide, methotrexate, ciclosporin A, mycophenolate mofetil, and rituximab and all immunomodulatory agents such as interferon alfa and interferon beta in participants fulfilling standard diagnostic criteria for chronic inflammatory demyelinating polyradiculoneuropathy. DATA COLLECTION AND ANALYSIS Two authors independently selected trials, judged their methodological quality and extracted data. We wanted to measure the change in disability after one year as our primary outcome. Our secondary outcomes were change in disability after four or more weeks (from randomisation), change in impairment after at least one year, change in maximum motor nerve conduction velocity and compound muscle action potential amplitude after one year and for those participants who were receiving corticosteroids or intravenous immunoglobulin, the amount of this medication given during at least one year after randomisation. Participants with one or more serious adverse events during the first year was also a secondary outcome. MAIN RESULTS Four trials fulfilled the selection criteria, one of azathioprine (27 participants), two of interferon beta-1a (77 participants in total) and one of methotrexate (60 participants). None of these trials showed significant benefit in the primary outcome or secondary outcomes selected for this review. AUTHORS' CONCLUSIONS The evidence from randomised trials does not show significant benefit from azathioprine, interferon beta-1a or methotrexate but none of the trials was large enough to rule out small or moderate benefit. The evidence from observational studies is insufficient to avoid the need for randomised controlled trials to discover whether these drugs are beneficial. Future trials should have improved designs, more sensitive outcome measures and longer durations.
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Affiliation(s)
- Mohamed Mahdi-Rogers
- Department of Neurology, King's College Hospital, Denmark Hill, London, UK, SE5 9RS
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Vedeler CA, Mellgren SI, Omdal R, Torbergsen T, Aasly J. [Intravenous IgG for treatment of neuromuscular diseases]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2010; 130:1717-20. [PMID: 20835282 DOI: 10.4045/tidsskr.09.0792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Highly purified IgG administered intravenously (IVIG) is used to treat many neurological diseases. MATERIAL AND METHODS This review is based on articles identified through a search in PubMed and the authors' knowledge and experience within the field. RESULTS The effect of IVIG has been best documented in the treatment of acute and chronic inflammatory demyelinating polyradiculoneuropathy, multifocal motor neuropathy and acute exacerbation of myasthenia gravis. Some smaller studies support explorative IVIG treatment in other neurological diseases such as Lambert-Eaton myasthenic syndrome, paraproteinemic neuropathy, neuropathy caused by vasculitis, inflammatory myopathies and stiff-person syndrome. INTERPRETATION IVIG affects the immune system in different ways. Documentation for the effect of such treatment in most neurological diseases remains sparse.
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Rafai M, Boulaajaj F, Sekkat Z, El Moutawakkil B, Slassi I. Place des bolus de méthylprednisolone dans le traitement des polyradiculonévrites chroniques de l’enfant. Arch Pediatr 2010; 17:1293-9. [DOI: 10.1016/j.arcped.2010.06.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Revised: 02/22/2010] [Accepted: 06/03/2010] [Indexed: 10/19/2022]
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Gaebel K, Blackhouse G, Campbell K, Robertson D, Xie F, Assasi N, Chalk C, Levine M, Goeree R. Intravenous immunoglobulin for the treatment of chronic inflammatory demyelinating polyradiculoneuropathy: a systematic review and meta-analysis. OPEN MEDICINE : A PEER-REVIEWED, INDEPENDENT, OPEN-ACCESS JOURNAL 2010; 4:e154-66. [PMID: 21687335 PMCID: PMC3090105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 01/02/2010] [Accepted: 01/03/2010] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired immune-mediated inflammatory disorder that targets the myelin sheaths of the peripheral nervous system. Intravenous immunoglobulin (IVIg) is a blood product containing immunoglobulin G pooled from many human donors. In fall 2008, CIDP became an approved indication for IVIg in the United States and Canada. OBJECTIVE To evaluate the clinical effectiveness and safety of IVIg for the treatment of CIDP through a systematic review of published randomized controlled trials. METHODS We searched the MEDLINE (1996-2009, including in-process and other non-indexed citations), Embase (1996-2009) and other databases through the Ovid interface. We applied a methodological filter to limit retrieval to controlled clinical trials, meta-analyses and systematic reviews, and health technology assessments. Retrieval was limited to studies involving humans, and no language restrictions were employed. We pooled extracted data to estimate the effect size of IVIg treatment based on the random-effects model. RESULTS We identified 9 unique randomized controlled trials. Of these, 3 compared IVIg therapy with an active comparator (plasma exchange, plasma exchange using extracorporeal immunoadsorption, oral prednisolone, respectively); the other 6 trials had placebo controls. No incremental benefit was seen in terms of primary outcomes for comparisons of IVIg therapy and an active comparator. Data from 4 of the 6 placebo-controlled trials were included in a meta-analysis. A significant improvement in disability (i.e., reduction in disability score) was found, with a standardized mean difference of 0.65 (95% confidence interval [CI] 0.23 to 1.08) in favour of IVIg. A pooled analysis of the proportion of patients with a response to treatment, as defined by the investigators of each of the trials, resulted in a risk ratio of 2.74 (95% CI 1.80 to 4.15) favouring IVIg. INTERPRETATION IVIg therapy was statistically superior to placebo in reducing disability and impairment among patients with CIDP. The effectiveness of IVIg was similar to that of the alternative treatment strategies of plasma exchange and oral prednisolone.
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Abstract
Because of inadequate sample sizes of randomized controlled trials, few immunologic interventions to treat or prevent neonatal sepsis have been reliably evaluated. International collaboration is essential in achieving timely, adequate samples to assess effects on mortality or disability-free survival reliably. Promising or possible therapeutic interventions in severe or gram-negative sepsis include exchange transfusions, pentoxifylline, and IgM-enriched intravenous immunoglobulin. Promising or possible prophylactic interventions include lactoferrin, with or without a probiotic; selenium; early curtailment of antibiotics after sterile cultures; breast milk; and earlier initiation of colostrum in high risk preterm infants. Prophylactic oral probiotics are safe and effective (P<.00001) in reducing all-cause mortality and necrotizing enterocolitis in preterm infants by over half, but do not reduce sepsis.
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Mahdi-Rogers M, Rajabally YA. Overview of the pathogenesis and treatment of chronic inflammatory demyelinating polyneuropathy with intravenous immunoglobulins. Biologics 2010; 4:45-9. [PMID: 20376173 PMCID: PMC2846143 DOI: 10.2147/btt.s4881] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2010] [Indexed: 12/18/2022]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired heterogeneous disorder of immune origin affecting the peripheral nerves, causing motor weakness and sensory symptoms and signs. The precise pathophysiology of CIDP remains uncertain although B and T cell mechanisms are believed to be implicated. Intravenous immunoglobulins (IVIg) have been shown in a number of trials to be an effective treatment for CIDP. IVIg is thought to exert its immunomodulatory effects by affecting several components of the immune system including B-cells, T-cells, macrophages and complement. This article provides an overview of the pathogenesis of CIDP and of its treatment with IVIg.
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Affiliation(s)
- Mohamed Mahdi-Rogers
- Neuromuscular Clinic, Department of Neurology, University Hospitals of Leicester, Leicester, UK
| | - Yusuf A Rajabally
- Neuromuscular Clinic, Department of Neurology, University Hospitals of Leicester, Leicester, UK
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van Schaik IN, Eftimov F, van Doorn PA, Brusse E, van den Berg LH, van der Pol WL, Faber CG, van Oostrom JCH, Vogels OJM, Hadden RDM, Kleine BU, van Norden AGW, Verschuuren JJGM, Dijkgraaf MGW, Vermeulen M. Pulsed high-dose dexamethasone versus standard prednisolone treatment for chronic inflammatory demyelinating polyradiculoneuropathy (PREDICT study): a double-blind, randomised, controlled trial. Lancet Neurol 2010; 9:245-53. [DOI: 10.1016/s1474-4422(10)70021-1] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hughes RAC, Dalakas MC, Cornblath DR, Latov N, Weksler ME, Relkin N. Clinical applications of intravenous immunoglobulins in neurology. Clin Exp Immunol 2010; 158 Suppl 1:34-42. [PMID: 19883422 DOI: 10.1111/j.1365-2249.2009.04025.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Intravenous immunoglobulin (IVIg) is used increasingly in the management of patients with neurological conditions. The efficacy and safety of IVIg treatment in chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and Guillain-Barré syndrome (GBS) have been established clearly in randomized controlled trials and summarized in Cochrane systematic reviews. However, questions remain regarding the dose, timing and duration of IVIg treatment in both disorders. Reports about successful IVIg treatment in other neurological conditions exist, but its use remains investigational. IVIg has been shown to be efficacious as second-line therapy in patients with dermatomyositis and suggested to be of benefit in some patients with polymyositis. In patients with inclusion body myositis, IVIg was not shown to be effective. IVIg is also a treatment option in exacerbations of myasthenia gravis. Studies with IVIg in patients with Alzheimer's disease have reported increased plasma anti-Abeta antibody titres associated with decreased Abeta peptide levels in the cerebrospinal fluid following IVIg treatment. These changes at the molecular level were accompanied by improved cognitive function, and large-scale randomized trials are under way.
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Affiliation(s)
- R A C Hughes
- National Hospital for Neurology and Neurosurgery, Queens Square, London, UK.
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Immunomodulatory Therapies in Neurologic Critical Care. Neurocrit Care 2009; 12:132-43. [DOI: 10.1007/s12028-009-9274-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2009] [Accepted: 08/28/2009] [Indexed: 10/20/2022]
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Mehndiratta MM, Hughes RAC, Agarwal P. Plasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev 2004:CD003906. [PMID: 15266507 DOI: 10.1002/14651858.cd003906.pub2] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Chronic inflammatory demyelinating polyradiculoneuropathy is an uncommon progressive or relapsing paralysing disease caused by inflammation of the peripheral nerves. If the hypothesis that it is due to autoimmunity is correct, removal of autoantibodies in the blood by plasma exchange should be beneficial. OBJECTIVES To evaluate the efficacy of plasma exchange in chronic inflammatory demyelinating polyradiculoneuropathy. SEARCH STRATEGY We searched the Neuromuscular Disease Group Register (December 2003), and MEDLINE (January 1966 to January 2003), EMBASE (January 1980 to January 2003), CINAHL (January 1982 to December 2002) and LILACS (January 1982 to January 2003). We also scrutinised the bibliographies of the trials, and contacted the trial authors and other disease experts. SELECTION CRITERIA Randomised or quasi-randomised controlled trials in participants of any age comparing plasma exchange with sham treatment or no treatment. A trial showing no significant difference in the benefit from plasma exchange with intravenous immunoglobulin has been included in a separate Cochrane review. DATA COLLECTION AND ANALYSIS Two authors selected the trials, extracted the data and assessed methodological quality independently. Where possible data were combined according to the methods of the Cochrane Neuromuscular Disease Review Group. PRIMARY OUTCOME MEASURE one crossover trial including 18 participants showed 2 (95% confidence interval (CI) 0.8 to 3.0) points more improvement after four weeks in an 11-point disability scale with plasma exchange (10 exchanges over four weeks) than with sham exchange. Rapid deterioration after plasma exchange occurred in eight of 12 who had improved. SECONDARY OUTCOME MEASURES when the results of this trial and another with 29 participants treated in a parallel group design trial were combined, there were 31 points (95% CI 16 to 45) more improvement in an impairment scale after plasma exchange (six exchanges over three weeks) than after sham exchange. There were significant improvements in both trials in an electrophysiological measure, the proximally evoked compound muscle action potential, after three or four weeks. Non-randomised evidence indicates that plasma exchange induces adverse events in 3% to 17% of procedures. These are sometimes serious. REVIEWERS' CONCLUSIONS Evidence from two small trials showed that plasma exchange provides significant short-term benefit in about two-thirds of patients with chronic inflammatory demyelinating polyradiculoneuropathy but rapid deterioration may occur afterwards. Adverse events related to difficulty with venous access, use of citrate and haemodynamic changes are not uncommon. More research is needed to identify agents which will prolong the beneficial action of plasma exchange.
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Affiliation(s)
- M M Mehndiratta
- Neurology, G.B.Pant Hospital, Professor, Department of Neurology, D-II, Kidwai Nagar-west, New Delhi, India, 110023
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