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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] [What about the content of this article? (0)] [Affiliation(s)] [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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2
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van Lieverloo GGA, Al-Soudi A, Wieske L, Klarenbeek PL, Anang DC, Adrichem ME, Niewold I, van Schaik BDC, van Kampen AHC, van Schaik IN, de Vries N, Eftimov F. B-cell and T-cell receptor repertoire in chronic inflammatory demyelinating polyneuropathy, a prospective cohort study. J Peripher Nerv Syst 2023; 28:69-78. [PMID: 36723274 DOI: 10.1111/jns.12533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/02/2023]
Abstract
The immunopathophysiological mechanisms underlying chronic inflammatory demyelinating polyneuropathy (CIDP) in an individual patient are largely unknown. Better understanding of these mechanisms may aid development of biomarkers and targeted therapies. Both B- and T-cell dominant mechanisms have been implicated. We therefore investigated whether B-cell and T-cell receptor (BCR/TCR) repertoires might function as immunological biomarkers in CIDP. In this prospective cohort study, we longitudinally sampled peripheral blood of CIDP patients in three different phases of CIDP: starting induction treatment (IT), starting withdrawal from IVIg maintenance treatment (MT), and patients in remission (R). BCR and TCR repertoires were analyzed using RNA based high throughput sequencing. In baseline samples, the number of total clones, the number of dominant BCR and TCR clones and their impact on the repertoire was similar for patients in the IT, MT, and remission groups compared with healthy controls. Baseline samples in the IT or MT did not predict treatment response or potential relapse at follow-up. Treatment responders in the IT group showed a potential IVIg-induced increase in the number of dominant BCR clones and their impact at follow-up (baseline1.0 [IQR 1.0-2.8] vs. 6 m 3.5 [0.3-6.8]; P < .05, Wilcoxon test). Although the BCR repertoire changed over time, the TCR repertoire remained robustly stable. We conclude that TCR and BCR repertoire distributions do not predict disease activity, treatment response or response to treatment withdrawal.
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Affiliation(s)
- G G A van Lieverloo
- Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - A Al-Soudi
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center (ARC), Amsterdam UMC, Amsterdam, The Netherlands
| | - L Wieske
- Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - P L Klarenbeek
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center (ARC), Amsterdam UMC, Amsterdam, The Netherlands
| | - D C Anang
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center (ARC), Amsterdam UMC, Amsterdam, The Netherlands
| | - M E Adrichem
- Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - I Niewold
- Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center (ARC), Amsterdam UMC, Amsterdam, The Netherlands.,Amsterdam UMC, Department of Genome Analysis, Amsterdam, The Netherlands
| | - B D C van Schaik
- Amsterdam UMC, Department of Epidemiology & Data Science (EDS), Bioinformatics Laboratory, Amsterdam, The Netherlands
| | - A H C van Kampen
- Amsterdam UMC, Department of Epidemiology & Data Science (EDS), Bioinformatics Laboratory, Amsterdam, The Netherlands
| | - I N van Schaik
- Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - N de Vries
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center (ARC), Amsterdam UMC, Amsterdam, The Netherlands
| | - F Eftimov
- Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
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3
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Younger DS. On the path to evidence-based therapy in neuromuscular disorders. Handb Clin Neurol 2023; 195:315-358. [PMID: 37562877 DOI: 10.1016/b978-0-323-98818-6.00007-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Neuromuscular disorders encompass a diverse group of acquired and genetic diseases characterized by loss of motor functionality. Although cure is the goal, many therapeutic strategies have been envisioned and are being studied in randomized clinical trials and entered clinical practice. As in all scientific endeavors, the successful clinical translation depends on the quality and translatability of preclinical findings and on the predictive value and feasibility of the clinical models. This chapter focuses on five exemplary diseases: childhood spinal muscular atrophy (SMA), Charcot-Marie-Tooth (CMT) disorders, chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), acquired autoimmune myasthenia gravis (MG), and Duchenne muscular dystrophy (DMD), to illustrate the progress made on the path to evidenced-based therapy.
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Affiliation(s)
- David S Younger
- Department of Clinical Medicine and Neuroscience, CUNY School of Medicine, New York, NY, United States; Department of Medicine, Section of Internal Medicine and Neurology, White Plains Hospital, White Plains, NY, United States.
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4
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Briani C, Cocito D, Campagnolo M, Doneddu PE, Nobile-Orazio E. Update on therapy of chronic immune-mediated neuropathies. Neurol Sci 2022; 43:605-614. [PMID: 33452933 DOI: 10.1007/s10072-020-04998-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/12/2020] [Indexed: 12/27/2022]
Abstract
Chronic immune-mediated neuropathies, including chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), neuropathies associated with monoclonal gammopathy, and multifocal motor neuropathy (MMN), are a group of disorders deemed to be caused by an immune response against peripheral nerve antigens. Several immune therapies have been reported to be variably effective in these neuropathies including steroids, plasma exchange, and high-dose intravenous (IVIg) or subcutaneous (SCIg) immunoglobulins. These therapies are however far from being invariably effective and may be associated with a number of side effects leading to the use of immunosuppressive agents whose efficacy has not been so far confirmed in randomized trials. More recently, new biological agents, such as rituximab, have proved to be effective in patients with neuropathy associated with IgM monoclonal gammopathy and are currently tested in CIDP.
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Affiliation(s)
- Chiara Briani
- Neurology Unit, Department of Neuroscience, University of Padova, Via Giustiniani, 5, 35128, Padova, Italy.
| | - Dario Cocito
- Istituti Clinici Scientifici Maugeri, Torino, Italy
| | - Marta Campagnolo
- Neurology Unit, Department of Neuroscience, University of Padova, Via Giustiniani, 5, 35128, Padova, Italy
| | - Pietro Emiliano Doneddu
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Rozzano, Milan, Italy
| | - Eduardo Nobile-Orazio
- Neuromuscular and Neuroimmunology Service, IRCCS Humanitas Clinical and Research Institute, Rozzano, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Milan University, Milan, Italy
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5
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Okubo Y, Miyabayashi T, Sato R, Endo W, Inui T, Togashi N, Haginoya K. A first case of childhood chronic inflammatory demyelinating polyneuropathy associated with alopecia universalis. Brain Dev 2022; 44:748-752. [PMID: 35970688 DOI: 10.1016/j.braindev.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/27/2022] [Accepted: 08/01/2022] [Indexed: 11/28/2022]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired demyelinating disease of the peripheral nervous system with unknown etiology. Alopecia universalis, an advanced form of alopecia areata (AA), is a condition characterized by complete hair loss. Here we report the first case of childhood CIDP associated with AA who was successfully treated with a combination of intravenous immunoglobulin (IVIg) and corticosteroids. CASE REPORT: This case describes a nine-year-old Japanese girl who developed alopecia, progressive muscle weakness, and eventually loss of walking ability (at ages 2, 4, and 7, respectively). She was treated with IVIg and prednisolone combination therapy, which improved muscle weakness and alopecia. She was positive for serum IgG-GM2 type anti-glycolipid antibodies, which may be associated with this rare combination of diseases.
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Affiliation(s)
- Yukimune Okubo
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan.
| | - Takuya Miyabayashi
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Ryo Sato
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Wakaba Endo
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Takehiko Inui
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Noriko Togashi
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Kazuhiro Haginoya
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan.
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6
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Fargeot G, Gitiaux C, Magy L, Pereon Y, Delmont E, Viala K, Echaniz-Laguna A. French recommendations for the management of adult & pediatric chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Rev Neurol (Paris) 2022; 178:953-968. [PMID: 36182621 DOI: 10.1016/j.neurol.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 05/31/2022] [Accepted: 06/05/2022] [Indexed: 11/22/2022]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a rare autoimmune disorder of the peripheral nervous system, primarily affecting the myelin sheath. The pathophysiology of CIDP is complex, involving both humoral and cellular immunity. The diagnosis of CIDP should be suspected in patients with symmetrical proximal and distal motor weakness and distal sensory symptoms of progressive onset, associated with decreased/abolished tendon reflexes. Treatments include intraveinous immunoglobulins, steroids and plasma exchange, with usually an induction phase followed by a maintenance therapy with progressive weaning. Treatment should be rapidly initiated to prevent axonal degeneration, which may compromise recovery. CIDP outcome is variable, ranging from mild distal paresthesiae to complete loss of ambulation. There have been several breakthroughs in the diagnosis and management of CIDP the past ten years, e.g. discovery of antibodies against the node of Ranvier, contribution of nerve ultrasound and magnetic resonance imaging to diagnosis, and demonstration of subcutaneous immunoglobulins efficiency. This led us to elaborate French recommendations for the management of adult & pediatric CIDP patients. These recommendations include diagnosis assessment, treatment, and follow-up.
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Affiliation(s)
- G Fargeot
- Neurophysiology Department, Pitié-Salpêtrière Hospital, AP-HP, Paris, France.
| | - C Gitiaux
- Department of Paediatric Neurophysiology, Necker-Enfants-Malades Hospital, AP-HP, Paris University, Paris, France
| | - L Magy
- Department of Neurology, National Reference Center for 'Rare Peripheral Neuropathies', University Hospital of Limoges, Limoges, France
| | - Y Pereon
- CHU Nantes, Centre de Référence Maladies Neuromusculaires AOC, Filnemus, Euro-NMD, Explorations Fonctionnelles, Hôtel-Dieu, Nantes, France
| | - E Delmont
- Reference Center for Neuromuscular Diseases and ALS Timone University Hospital, Aix-Marseille University, Marseille, France
| | - K Viala
- Neurophysiology Department, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - A Echaniz-Laguna
- Neurology Department, CHU de Bicêtre, AP-HP, Le-Kremlin-Bicêtre, France; French National Reference Center for Rare Neuropathies (NNERF), Le-Kremlin-Bicêtre, France; Inserm U1195, Paris-Saclay University, Le-Kremlin-Bicêtre, France
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7
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Brun S, de Sèze J, Muller S. CIDP: Current Treatments and Identification of Targets for Future Specific Therapeutic Intervention. Immuno 2022; 2:118-31. [DOI: 10.3390/immuno2010009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired immune-mediated inflammatory disorder of the peripheral nervous system. This clinically heterogeneous neurological disorder is closely related to Guillain–Barré syndrome and is considered the chronic counterpart of that acute disease. Currently available treatments are mostly empirical; they include corticosteroids, intravenous immunoglobulins, plasma exchange and chronic immunosuppressive agents, either alone or in combination. Recent advances in the understanding of the underlying pathogenic mechanisms in CIDP have brought a number of novel ways of possible intervention for use in CIDP. This review summarizes selected pre-clinical and clinical findings, highlights the importance of using adapted animal models to evaluate the efficacy of novel treatments, and proposes the outlines of future directions to ameliorate the conditions of patients with CIDP.
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8
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Gong X, Luo R, Liu J, Guo K, Li A, Liu X, Liu Y, Zhou D, Hong Z. Efficacy and tolerability of intravenous immunoglobulin versus intravenous methylprednisolone treatment in anti- N-methyl-D-aspartate receptor encephalitis. Eur J Neurol 2021; 29:1117-1127. [PMID: 34918418 DOI: 10.1111/ene.15214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/28/2021] [Accepted: 12/08/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To compare the effectiveness and safety of intravenous immunoglobulin (IVIg) or intravenous methylprednisolone (IVMP) vs and IVIg plus IVMP (IPI) as initial therapy in anti- N-methyl-D-aspartate receptor (NMDAR) encephalitis. METHODS A multicenter study of prospectively identified NMDAR encephalitis individuals who presented from October, 2011, to August, 2020, to the study hospitals of western China, with a median follow-up of 3.9 years. Prespecified candidate variables were the prescriptions of IVIg, IVMP, or a combination of both. Propensity score matching was also performed to control potential confounders. RESULTS A total of 347 NMDAR encephalitis patients were finally analyzed in this study. After the TriMatch for NMDAR encephalitis, 37 triplets were generated. Compared to IVIg or IVMP, the administration of IPI exhibited a significant benefit of a higher response rate (86.5% vs. 55.6% vs. 68.7%, pcorr <0.01); improved mRS score at 3, 6, and 12 months (pcorr <0.05); and reduced further recurrence rate (10 of 37 [27.0%] vs 9 of 37 [24.3%] vs 2 of 37 [5.4%]; p log rank = 0.01). There was no association between treatment superiority and patient sex or the presence of tumors (p≥0.05). Patients treated with IVMP had a significantly higher number of adverse events, but 99% of adverse events were mild to moderate and did not lead to a change in treatment. CONCLUSION In patients with NMDAR encephalitis, adequate response, favorable outcome, and less recurrence were each more likely to occur in individuals treated with a combined immunotherapy than in monotherapy individuals.
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Affiliation(s)
- Xue Gong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Rong Luo
- Department of Pediatric West, China Second Hospital Sichuan University, Chengdu, Sichuan, China
| | - Jie Liu
- Department of Neurology, Sichuan Provincial Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Kundian Guo
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Aiqing Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Xu Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Yue Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Dong Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University
| | - Zhen Hong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Institute of Brain science and Brain-inspired technology of West China Hospital, Sichuan University.,Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, 611730, China
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9
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Goyal NA, Karam C, Sheikh KA, Dimachkie MM. Subcutaneous immunoglobulin treatment for chronic inflammatory demyelinating polyneuropathy. Muscle Nerve 2021; 64:243-254. [PMID: 34260074 PMCID: PMC8457117 DOI: 10.1002/mus.27356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 12/15/2022]
Abstract
Immunoglobulin G (IgG) therapy is an established long‐term treatment in chronic inflammatory demyelinating polyneuropathy (CIDP) that is commonly administered intravenously (IVIg). The subcutaneous immunoglobulin (SCIg) administration route is a safe and effective alternative option, approved by the United States Food and Drug Administration (FDA) in 2018, for maintenance treatment of adults with CIDP. Physicians and patients alike need to be aware of all their treatment options in order to make informed decisions and plan long‐term treatment strategies. In this review, we collate the evidence for SCIg in CIDP from all published studies and discuss their implications and translation to clinical practice. We also provide guidance on the practicalities of how and when to transition patients from IVIg to SCIg and ongoing patient support. Evidence suggests that IVIg and SCIg have comparable long‐term efficacy in CIDP. However, SCIg can provide additional benefits for some patients, including no requirement for venous access or premedication, and reduced frequency of systemic adverse events. Local‐site reactions are more common with SCIg than IVIg, but these are mostly well‐tolerated and abate with subsequent infusions. Data suggest that many patients prefer SCIg following transition from IVIg. SCIg preference may be a result of the independence and flexibility associated with self‐infusion, whereas IVIg preference may be a result of familiarity and reliance on a healthcare professional for infusions. In practice, individualizing maintenance dosing based on disease behavior and determining the minimally effective IgG dose for individuals are key considerations irrespective of the administration route chosen.
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Affiliation(s)
- Namita A Goyal
- Department of Neurology, MDA ALS and Neuromuscular Center, University of California, Irvine, California, USA
| | - Chafic Karam
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kazim A Sheikh
- Department of Neurology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mazen M Dimachkie
- Department of Neurology, University of Kansas Medical Center, Kansas City, Kansas, USA
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10
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Bus SRM, Broers MC, Lucke IM, Bunschoten C, van Lieverloo GGA, Adrichem ME, van Veen R, Wieske L, Lingsma HF, Goedee HS, van der Pol WL, van Schaik IN, Van Doorn PA, Jacobs BC, Eftimov F; ICOS Consortium. Clinical outcome of CIDP one year after start of treatment: a prospective cohort study. J Neurol 2021. [PMID: 34173873 DOI: 10.1007/s00415-021-10677-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 10/31/2022]
Abstract
OBJECTIVE To assess clinical outcome in treatment-naive patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). METHODS We included adult treatment-naive patients participating in the prospective International CIDP Outcome Study (ICOS) that fulfilled the European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS) diagnostic criteria for CIDP. Patients were grouped based on initial treatment with (1) intravenous immunoglobulin (IVIg), (2) corticosteroid monotherapy or (3) IVIg and corticosteroids (combination treatment). Outcome measures included the inflammatory Rasch-built overall disability scale (I-RODS), grip strength, and Medical Research Council (MRC) sum score. Treatment response, treatment status, remissions (improved and untreated), treatment changes, and residual symptoms or deficits were assessed at 1 year. RESULTS Forty patients were included of whom 18 (45%) initially received IVIg, 6 (15%) corticosteroids, and 16 (40%) combination treatment. Improvement on ≥ 1 of the outcome measures was seen in 31 (78%) patients. At 1 year, 19 (48%) patients were still treated and fourteen (36%) patients were in remission. Improvement was seen most frequently in patients started on IVIg (94%) and remission in those started on combination treatment (44%). Differences between groups did not reach statistical significance. Residual symptoms or deficits ranged from 25% for neuropathic pain to 96% for any sensory deficit. CONCLUSIONS Improvement was seen in most patients. One year after the start of treatment, more than half of the patients were untreated and around one-third in remission. Residual symptoms and deficits were common regardless of treatment.
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11
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Bus SRM, Zambreanu L, Abbas A, Rajabally YA, Hadden RDM, de Haan RJ, de Borgie CAJM, Lunn MP, van Schaik IN, Eftimov F. Intravenous immunoglobulin and intravenous methylprednisolone as optimal induction treatment in chronic inflammatory demyelinating polyradiculoneuropathy: protocol of an international, randomised, double-blind, placebo-controlled trial (OPTIC). Trials 2021; 22:155. [PMID: 33608058 PMCID: PMC7894234 DOI: 10.1186/s13063-021-05083-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/29/2021] [Indexed: 11/28/2022] Open
Abstract
Background International guidelines recommend either intravenous immunoglobulin (IVIg) or corticosteroids as first-line treatment for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). IVIg treatment usually leads to rapid improvement and is generally safe, but does not seem to lead to long-term remissions. Corticosteroids act more slowly and are associated with more side effects, but may induce long-term remissions. The hypothesis of this study is that combined IVIg and corticosteroid induction treatment will lead to more frequent long-term remissions than IVIg treatment alone. Methods An international, randomised, double-blind, placebo-controlled trial, in adults with ‘probable’ or ‘definite’ CIDP according to the EFNS/PNS 2010 criteria. Three groups of patients are included: (1) treatment naïve, (2) known CIDP patients with a relapse after > 1 year without treatment, and (3) patients with CIDP who improved within 3 months after a single course of IVIg, who subsequently deteriorate at any interval without having received additional treatment. Patients are randomised to receive 7 courses of IVIg and 1000 mg intravenous methylprednisolone (IVMP) (in sodium chloride 0.9%) or IVIg and placebo (sodium chloride 0.9%), every 3 weeks for 18 weeks. IVIg treatment consists of a loading dose of 2 g/kg (over 3–5 days) followed by 6 courses of IVIg 1/g/kg (over 1–2 days). The primary outcome is remission at 1 year, defined as improvement in disability from baseline, sustained between week 18 and week 52 without further treatment. Secondary outcomes include changes in disability, impairment, pain, fatigue, quality of life, care use and costs and (long-term) safety. Discussion In case of superiority of the combined treatment, patients will experience the advantages of two proven efficacious treatments, namely rapid improvement due to IVIg and long-term remission due to corticosteroids. Long-term remission would reduce the need for maintenance IVIg treatment and may decrease health care costs. Additionally, we expect that the combined treatment leads to a higher proportion of patients with improvement as some patients who do not respond to IVIg will respond to corticosteroids. Risks of short and long-term additional adverse events of the combined treatment need to be assessed. Trial registration ISRCTN registry ISRCTN15893334. Prospectively registered on 12 February 2018.
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Affiliation(s)
- S R M Bus
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - L Zambreanu
- Department of Neurology, National Hospital for Neurology and Neurosurgery, Centre for Neuromuscular Disease, London, UK
| | - A Abbas
- Department of Neurology, University Hospitals of Birmingham, Regional Neuromuscular Service, Birmingham, UK
| | - Y A Rajabally
- Department of Neurology, University Hospitals of Birmingham, Regional Neuromuscular Service, Birmingham, UK
| | - R D M Hadden
- Department of Neurology, King's College Hospital, London, UK
| | - R J de Haan
- Clinical Research Unit, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - C A J M de Borgie
- Clinical Research Unit, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - M P Lunn
- Department of Neurology, National Hospital for Neurology and Neurosurgery, Centre for Neuromuscular Disease, London, UK
| | - I N van Schaik
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Spaarne Gasthuis, Haarlem, the Netherlands
| | - F Eftimov
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
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Stino AM, Naddaf E, Dyck PJ, Dyck PJB. Chronic inflammatory demyelinating polyradiculoneuropathy-Diagnostic pitfalls and treatment approach. Muscle Nerve 2020; 63:157-169. [PMID: 32914902 DOI: 10.1002/mus.27046] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/07/2020] [Accepted: 08/11/2020] [Indexed: 12/19/2022]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is characterized by progressive weakness and sensory loss, often affecting patients' ability to walk and perform activities of daily living independently. With the lack of a diagnostic biomarker, the diagnosis relies on clinical suspicion, clinical findings, and the demonstration of demyelinating changes on electrodiagnostic (EDx) testing and nerve pathology. As a result, patients can often be misdiagnosed with CIDP and unnecessarily treated with immunotherapy. Interpreting the EDx testing and cerebrospinal fluid findings in light of the clinical phenotype, recognizing atypical forms of CIDP, and screening for CIDP mimickers are the mainstays of the approach to patients suspected of having CIDP, and are detailed in this review. We also review the currently available treatment options, including intravenous immunoglobulin (IVIg), corticosteroids (CCS), and plasma exchange (PE), and discuss how to approach treatment-refractory cases. Finally, we emphasize the need to adopt objective outcome measures to monitor treatment response.
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Affiliation(s)
- Amro M Stino
- Division of Neuromuscular Medicine, Department of Neurology, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Elie Naddaf
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Peter J Dyck
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - P James B Dyck
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
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