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Farina A, Villagrán-García M, Vogrig A, Joubert B. Central nervous system adverse events of immune checkpoint inhibitors. Curr Opin Neurol 2024; 37:345-352. [PMID: 38483130 DOI: 10.1097/wco.0000000000001259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2024]
Abstract
PURPOSE OF REVIEW Immune checkpoint inhibitors (ICI) may trigger immune-related adverse events which rarely affect the central nervous system (CNS-irAEs). Over the past few years, cumulative data have led to the characterization of well defined syndromes with distinct cancer and antibody associations as well as different outcomes. RECENT FINDINGS The most frequent CNS-irAE is encephalitis, which includes three main groups: meningoencephalitis, a nonfocal syndrome usually responsive to corticosteroids; limbic encephalitis, associated with high-risk paraneoplastic neurological syndromes (PNS) antibodies (e.g. anti-Hu, anti-Ma2) and neuroendocrine cancers, characterized by poor treatment response and outcomes; and cerebellar ataxia, with variable outcomes (worse when high-risk PNS antibodies are detected). Additionally, a diffuse encephalopathy without inflammatory findings, with poor response to corticosteroids and high mortality has been described. The spectrum of CNS-irAEs also includes meningitis, myelitis, and rarer presentations. A subset of CNS-irAEs (i.e. limbic encephalitis and/or rapidly progressive cerebellar ataxia) is undistinguishable from ICI-naïve PNS. SUMMARY The clinical and outcomes diversity of CNS-irAEs suggests different pathogenic mechanisms, which need to be understood to establish more effective and specific treatment modalities. It is crucial to identify biomarkers able to predict which patients will experience severe CNS-irAEs, to anticipate their diagnosis, and to predict long-term outcomes.
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Affiliation(s)
- Antonio Farina
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron
- MeLiS - UCBL-CNRS UMR 5284 - INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France
| | - Macarena Villagrán-García
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron
- MeLiS - UCBL-CNRS UMR 5284 - INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France
| | - Alberto Vogrig
- Department of Medicine (DMED), University of Udine
- Clinical Neurology, Department of Head-Neck and Neuroscience, Azienda Sanitaria Universitaria Friuli Centrale (ASU FC), Udine, Italy
| | - Bastien Joubert
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron
- MeLiS - UCBL-CNRS UMR 5284 - INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France
- Department of Neurology, Hôpital Lyon Sud, Hospices Civils de Lyon, Lyon, France
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2
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Chen A, Chwalisz BK. Update on Neuro-ophthalmic Manifestations of Immune Checkpoint Inhibitors. Curr Neurol Neurosci Rep 2024; 24:113-122. [PMID: 38498093 DOI: 10.1007/s11910-024-01336-z] [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] [Accepted: 02/25/2024] [Indexed: 03/19/2024]
Abstract
PURPOSE OF REVIEW Immune checkpoint inhibitor (ICI) use has been on the rise for treatment of many different malignancies. Subsequently, more has been learned about immune-related adverse events (irAEs) that occur up to 12 months after treatment. This review summarizes the latest findings and management of neuro-ophthalmic associated irAEs. RECENT FINDINGS irAEs can affect the afferent and efferent neuro-ophthalmic pathways, thereby targeting central and peripheral nervous systems. As more cases are being reported, it is becoming apparent that neuro-ophthalmic irAEs often present with atypical features when compared to their spontaneous autoimmune counterparts. These neuro-ophthalmic presentations can also be signs of a more extensive inflammatory process that spans other organ systems, such as myopathies, endocrinopathies, and paraneoplastic syndromes. Awareness of neuro-ophthalmic irAEs and their atypical presentations can lead to early detection, termination of ICI treatment, and immunosuppressant therapy initiation.
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Affiliation(s)
- Amalie Chen
- Neuro-Ophthalmology Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
- Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Bart K Chwalisz
- Neuro-Ophthalmology Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA.
- Division of Neuroimmunology and Neuroinfectious Disease, Massachusetts General Hospital, Boston, MA, USA.
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Aboseif A, Vorasoot N, Pinto MV, Guo Y, Hasan S, Zekeridou A, Chen JJ, Dubey D. Immune Checkpoint Inhibitor-Associated Kelch-Like Protein-11 IgG Brainstem Encephalitis. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2024; 11:e200218. [PMID: 38484218 DOI: 10.1212/nxi.0000000000200218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/19/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVES Kelch-like protein-11 (KLHL11)-IgG is associated with rhombencephalitis and seminoma. It has not previously been described as a neurologic immune checkpoint inhibitor (ICI)-related adverse event (nirAE) or in association with esophageal adenocarcinoma. METHODS We describe a 61-year-old man with metastatic esophageal adenocarcinoma treated with folinic acid, fluorouracil, oxaliplatin (FOLFOX), and nivolumab, who subsequently developed diplopia, vertigo, and progressive gait ataxia after 8 weeks of treatment. RESULTS Owing to a concern for ICI-associated myasthenia gravis, nivolumab was held and he was treated with prednisone and pyridostigmine. EMG showed no neuromuscular junction dysfunction, and acetylcholine-receptor antibodies were negative. Brain MRI was unrevealing. Murine brain tissue immunofluorescence assay revealed KLHL11-IgG in both serum and CSF, confirmed by cell-based assay. Tumor histopathology demonstrated poorly differentiated, highly proliferative adenocarcinoma with increased mitotic figures and cytoplasmic KLHL11 immunoreactivity. He was initiated on 6 months of cyclophosphamide in addition to FOLFOX for post-ICI-associated KLHL11-IgG rhombencephalitis. DISCUSSION We report KLHL11-IgG rhombencephalitis associated with poorly differentiated esophageal cancer as a novel nirAE. Tumor staining revealed KLHL11 immunoreactivity, supporting a cancer-antigen-driven ICI-associated paraneoplastic syndrome. Recognition of novel nirAEs can expedite treatment and potentially prevent progressive neurologic disability.
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Affiliation(s)
- Albert Aboseif
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Nisa Vorasoot
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Marcus V Pinto
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Yong Guo
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Shemonti Hasan
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Anastasia Zekeridou
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - John J Chen
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
| | - Divyanshu Dubey
- From the Center for Multiple Sclerosis and Autoimmune Neurology (A.A., N.V., Y.G., S.H., A.Z., J.J.C., D.D.), Department of Neurology; Department of Laboratory Medicine and Pathology (N.V., Y.G., A.Z., D.D.); Department of Neurology (N.V.), Mayo Clinic College of Medicine, Rochester, MN; Division of Neurology (M.V.P.), Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand; and Department of Ophthalmology (J.J.C.), Mayo Clinic College of Medicine, Rochester, MN
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Casagrande S, Sopetto GB, Bertalot G, Bortolotti R, Racanelli V, Caffo O, Giometto B, Berti A, Veccia A. Immune-Related Adverse Events Due to Cancer Immunotherapy: Immune Mechanisms and Clinical Manifestations. Cancers (Basel) 2024; 16:1440. [PMID: 38611115 PMCID: PMC11011060 DOI: 10.3390/cancers16071440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The landscape of cancer treatment has undergone a significant transformation with the introduction of Immune Checkpoint Inhibitors (ICIs). Patients undergoing these treatments often report prolonged clinical and radiological responses, albeit with a potential risk of developing immune-related adverse events (irAEs). Here, we reviewed and discussed the mechanisms of action of ICIs and their pivotal role in regulating the immune system to enhance the anti-tumor immune response. We scrutinized the intricate pathogenic mechanisms responsible for irAEs, arising from the evasion of self-tolerance checkpoints due to drug-induced immune modulation. We also summarized the main clinical manifestations due to irAEs categorized by organ types, detailing their incidence and associated risk factors. The occurrence of irAEs is more frequent when ICIs are combined; with neurological, cardiovascular, hematological, and rheumatic irAEs more commonly linked to PD1/PD-L1 inhibitors and cutaneous and gastrointestinal irAEs more prevalent with CTLA4 inhibitors. Due to the often-nonspecific signs and symptoms, the diagnosis of irAEs (especially for those rare ones) can be challenging. The differential with primary autoimmune disorders becomes sometimes intricate, given the clinical and pathophysiological similarities. In conclusion, considering the escalating use of ICIs, this area of research necessitates additional clinical studies and practical insights, especially the development of biomarkers for predicting immune toxicities. In addition, there is a need for heightened education for both clinicians and patients to enhance understanding and awareness.
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Affiliation(s)
- Silvia Casagrande
- Unit of Neurology, Rovereto Hospital, Azienda Provinciale per i Servizi Sanitari-APSS, 38122 Trento, Italy; (S.C.); (B.G.)
| | - Giulia Boscato Sopetto
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38122 Trento, Italy; (G.B.S.); (G.B.); (V.R.)
| | - Giovanni Bertalot
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38122 Trento, Italy; (G.B.S.); (G.B.); (V.R.)
- Center for Medical Sciences (CISMed), University of Trento, 38122 Trento, Italy
- Multizonal Unit of Pathology, APSS, 38122 Trento, Italy
| | - Roberto Bortolotti
- Unit of Rheumatology, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy;
| | - Vito Racanelli
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38122 Trento, Italy; (G.B.S.); (G.B.); (V.R.)
- Center for Medical Sciences (CISMed), University of Trento, 38122 Trento, Italy
- Unit of Internal Medicine, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy
| | - Orazio Caffo
- Unit of Oncology, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy; (O.C.); (A.V.)
| | - Bruno Giometto
- Unit of Neurology, Rovereto Hospital, Azienda Provinciale per i Servizi Sanitari-APSS, 38122 Trento, Italy; (S.C.); (B.G.)
- Center for Medical Sciences (CISMed), University of Trento, 38122 Trento, Italy
- Department of Psychology and Cognitive Sciences (DIPSCO), University of Trento, 38122 Trento, Italy
| | - Alvise Berti
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38122 Trento, Italy; (G.B.S.); (G.B.); (V.R.)
- Center for Medical Sciences (CISMed), University of Trento, 38122 Trento, Italy
- Unit of Rheumatology, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy;
| | - Antonello Veccia
- Unit of Oncology, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy; (O.C.); (A.V.)
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Fernández Jiménez-Ortiz H, Maroto Rodríguez B, Lapuente Monjas R, Sampedro Yáñez R, Sánchez Santos I, Toledano Fernández N. Iatrogenic affectation of ocular motility by immune checkpoint inhibitors. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2024; 99:158-164. [PMID: 38013131 DOI: 10.1016/j.oftale.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/22/2023] [Indexed: 11/29/2023]
Abstract
Cancer therapy relies on new antitumoral drugs called immune checkpoint inhibitors (ICI), which produce long-lasting anti-tumor responses and lengthen survival, but cause autoimmune-type toxicity. The clinical characteristics induced by ICI are not well characterized to date and careful collection of clinical data is required to accurately define its safety profile. We conducted a literature search in the main clinical search engines to identify pharmacological ocular iatrogenic events of ICIs related to ocular motility. Four systematic reviews were found that included this type of ocular iatrogenesis as well as numerous isolated case reports. Reported adverse effects include: oculomotor paresis, optic neuropathy, optic atrophy, myastheniform syndromes, thyroid pseudo-orbitopathy, orbital apex syndrome, and hypophysitis. Most were managed without interruption or with partial interruption of cancer treatment. Aggressive systemic treatments were required for adequate management of ocular iatrogenic events. It is essential that the ophthalmologist become familiar with the new ICI oncological treatments, capable of causing severe and disabling motilidad ocular iatrogenesis for the patient. The communication of adverse effects and the report of the treatments used can help the most appropriate management of these patients. Research should be oriented towards complex differential diagnosis and to optimize decisions on cancer treatments.
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Affiliation(s)
| | - B Maroto Rodríguez
- Servicio de Oftalmología, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, Spain
| | - R Lapuente Monjas
- Servicio de Oftalmología, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, Spain.
| | - R Sampedro Yáñez
- Servicio de Oftalmología, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, Spain
| | | | - N Toledano Fernández
- Servicio de Oftalmología, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, Spain
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Mezni E, Corazza G, Mari R, Coze S, Charrier N, Chanez B, Chretien AS, Rochigneux P. Facial palsy after administration of immune checkpoint inhibitors: case report, literature review and clinical care management. Front Immunol 2024; 15:1375497. [PMID: 38585263 PMCID: PMC10995231 DOI: 10.3389/fimmu.2024.1375497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Neurological immune-related adverse events (irAEs) due to immune checkpoint inhibitors (ICI) are rare complications of immunotherapy, particularly dreadful for patients and clinical teams. Indeed, neurological irAEs are potentially severe and their diagnosis require prompt recognition and treatment. Additionally, the spectrum of neurological irAEs is broad, affecting either neuromuscular junction, peripheral or central nervous system. Here, we described the case of a 55-year man with metastatic melanoma, facing a brutal right peripheral cerebral palsy after his third ipilimumab/nivolumab infusion. After the case presentation, we reviewed the literature about this rare complication of immunotherapy, and described its diagnosis work-up and clinical management.
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Affiliation(s)
- Essia Mezni
- Medical Oncology Department, Paoli-Calmettes Institute, Marseille, France
| | - Giovanni Corazza
- Neurology Department, Assitance Publique Hôpitaux de Marseille, Aix-Marseille University, Marseille, France
- Referral Centre for Neuromuscular Diseases and Amyotrophic Lateral Sclerosis (ALS), Hôpital La Timone, Marseille, France
| | - Roxane Mari
- Medical Oncology Department, Paoli-Calmettes Institute, Marseille, France
| | - Stephanie Coze
- Radiology Department, Assitance Publique Hôpitaux de Marseille, Aix-Marseille University, Marseille, France
| | - Nathalie Charrier
- Nuclear Medicine Department, Paoli-Calmettes Institut, Marseille, France
| | - Brice Chanez
- Medical Oncology Department, Paoli-Calmettes Institute, Marseille, France
| | - Anne Sophie Chretien
- Team Immunity and Cancer, Centre de Recherche en Canceírologie de Marseille (CRCM), Inserm, U1068, Centre national de la recherche scientifique (CNRS), Unité Mixte de Recherche 7258 (UMR7258), Paoli-Calmettes Institute, Aix-Marseille University, Marseille, France
| | - Philippe Rochigneux
- Medical Oncology Department, Paoli-Calmettes Institute, Marseille, France
- Team Immunity and Cancer, Centre de Recherche en Canceírologie de Marseille (CRCM), Inserm, U1068, Centre national de la recherche scientifique (CNRS), Unité Mixte de Recherche 7258 (UMR7258), Paoli-Calmettes Institute, Aix-Marseille University, Marseille, France
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7
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Farina A, Villagrán-García M, Vogrig A, Zekeridou A, Muñiz-Castrillo S, Velasco R, Guidon AC, Joubert B, Honnorat J. Neurological adverse events of immune checkpoint inhibitors and the development of paraneoplastic neurological syndromes. Lancet Neurol 2024; 23:81-94. [PMID: 38101905 DOI: 10.1016/s1474-4422(23)00369-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 12/17/2023]
Abstract
Immune checkpoint inhibitors, a class of oncological treatments that enhance antitumour immunity, can trigger neurological adverse events closely resembling paraneoplastic neurological syndromes. Unlike other neurological adverse events caused by these drugs, post-immune checkpoint inhibitor paraneoplastic neurological syndromes predominantly affect the CNS and are associated with neural antibodies and cancer types commonly found also in spontaneous paraneoplastic neurological syndromes. Furthermore, post-immune checkpoint inhibitor paraneoplastic neurological syndromes have poorer neurological outcomes than other neurological adverse events of immune checkpoint inhibitors. Early diagnosis and initiation of immunosuppressive therapy are likely to be crucial in preventing the accumulation of neurological disability. Importantly, the neural antibodies found in patients with post-immune checkpoint inhibitor paraneoplastic neurological syndromes are sometimes detected before treatment, indicating that these antibodies might help to predict the development of neurological adverse events. Experimental and clinical evidence suggests that post-immune checkpoint inhibitor paraneoplastic neurological syndromes probably share immunological features with spontaneous paraneoplastic syndromes. Hence, the study of post-immune checkpoint inhibitor paraneoplastic neurological syndromes can help in deciphering the immunopathogenesis of paraneoplastic neurological syndromes and in identifying novel therapeutic targets.
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Affiliation(s)
- Antonio Farina
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron, France; MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France; Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - Macarena Villagrán-García
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron, France; MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France
| | - Alberto Vogrig
- Clinical Neurology, Santa Maria della Misericordia University Hospital, Azienda Sanitaria Universitaria Friuli Centrale (ASU FC), Udine, Italy; Department of Medicine (DAME), University of Udine Medical School, Udine, Italy
| | - Anastasia Zekeridou
- Department of Neurology, Mayo Clinic, Rochester, MN, USA; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Sergio Muñiz-Castrillo
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron, France; MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France; Stanford Center for Sleep Sciences and Medicine, Palo Alto, CA, USA
| | - Roser Velasco
- Neuro-Oncology Unit, Hospital Universitari de Bellvitge-Institut Català d Oncologia L'Hospitalet, Institut d'Investigació Biomèdica de Bellvitge, l'Hospitalet de Llobregat, Barcelona, Spain; Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Amanda C Guidon
- Harvard Medical School, Boston, MA, USA; Division of Neuromuscular Medicine, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Bastien Joubert
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron, France; MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France; Department of Neurology, Hôpital Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Jérôme Honnorat
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron, France; MeLiS, UCBL-CNRS UMR 5284, INSERM U1314, Université Claude Bernard Lyon 1, Lyon, France.
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McCombe JA, Sechi E, Zekeridou A. Neurologic manifestations of autoimmunity with immune checkpoint inhibitors. HANDBOOK OF CLINICAL NEUROLOGY 2024; 200:449-465. [PMID: 38494296 DOI: 10.1016/b978-0-12-823912-4.00024-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Immune checkpoint inhibitors (ICIs) are cancer immunotherapies that enhance the body's own immune system to treat cancer. ICI treatment, however, can cause immune-related adverse events (irAEs) that can affect any organ, resulting in significant morbidity and mortality. Neurologic irAEs (nirAEs) are rare and can affect the peripheral nervous system more commonly than the central nervous system. Treatment is dependent on the severity of the neurologic manifestations and often includs discontinuation of the ICI and initiation of steroid therapy as the first line; other treatments have also been used. NirAEs and cardiac irAEs have higher fatality rates underlying the importance of early recognition and appropriate management. This chapter reviews the clinical manifestations of neurologic immune-related adverse events associated with ICI treatment as well as diagnostic and therapeutic modalities.
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Affiliation(s)
- Jennifer A McCombe
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Elia Sechi
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Anastasia Zekeridou
- Department of Neurology, Mayo Clinic, Rochester, MN, United States; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States; Center of MS and Autoimmune Neurology, Mayo Clinic, Rochester, MN, United States.
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9
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Javaid A, Bennett C, Rao A, Spain L. Rare Immune-Related Adverse Events (irAEs): Approach to Diagnosis and Management. Pharmaceut Med 2024; 38:25-38. [PMID: 38194017 PMCID: PMC10824871 DOI: 10.1007/s40290-023-00508-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2023] [Indexed: 01/10/2024]
Abstract
Immune checkpoint inhibitors (ICIs) have revolutionised the treatment landscape across many solid organ malignancies and form part of routine clinical practice in many tumours. As indications for monotherapy, doublet therapy and combination approaches with chemotherapy and targeted agents expand, clinicians must be aware of the wide range of possible immune-related adverse events (irAEs). Common toxicities, including rash, colitis, hepatitis and pneumonitis are well described in the literature, and have established diagnostic and management algorithms. Rarer toxicities, often with an incidence of less than 1%, are less defined. These syndromes can be poorly recognised, may take on a fulminant course and do not have established or evidence-based diagnostic and management strategies. As such, patients may experience increased morbidity, mortality and poorer outcomes, related both to these irAEs as well as how the treatment of these may affect the management of their underlying malignancy. In this review, we aim to explore the incidence, potential biomarkers, pathogenesis, diagnostic work-up and clinical sequelae of a selection of uncommon irAEs, with a focus on myocarditis, neurological and haematologic syndromes. Further prospective research is required to accurately define the incidence and pathogenesis of these conditions, with the aim of increasing clinician awareness of rare irAEs and to assist with a more personalised and mechanism-based approach to these syndromes.
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Affiliation(s)
- Anadil Javaid
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Catherine Bennett
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Aparna Rao
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Lavinia Spain
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
- Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia.
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Guven DC, Erul E, Kaygusuz Y, Akagunduz B, Kilickap S, De Luca R, Rizzo A. Immune checkpoint inhibitor-related hearing loss: a systematic review and analysis of individual patient data. Support Care Cancer 2023; 31:624. [PMID: 37819422 DOI: 10.1007/s00520-023-08083-w] [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: 02/02/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
PURPOSE Immune checkpoint inhibitors (ICIs) are related to various immune-related adverse events (irAEs). However, the knowledge is limited with rare irAEs like hearing loss. Therefore, we evaluated the characteristics, presentation, and treatment of ICI-related hearing loss by reviewing the individual patient data from the previous studies. METHODS We conducted a systematic search of the Web of Science, PubMed, and Embase databases for studies published until 17 November 2022. The selected MeSH search terms were "hearing loss" OR "hearing impairment" OR "ototoxicity" OR "vestibular toxicity" OR "audiovestibular toxicity" AND "immune checkpoint inhibitor" OR "immunotherapy." RESULTS A total of 38 patients were included. Melanoma was the most frequent diagnosis (73.7%). The median time from ICI initiation to hearing loss development was 3 months. The hearing impairment was secondary to bilateral sensorineural hearing loss (SNHL) in 24 (68.6%) patients, and at least one other irAE accompanied the hearing loss in 24 patients. Hearing loss significantly improved in 45.7% of the patients. The overall response rate and disease control rate were 67.6% and 85.3%, respectively. CONCLUSION We observed that most cases of ICI-related hearing loss were reversible, observed in patients with melanoma, accompanied by other irAEs, and associated with a high response rate to ICIs. With the expanded use of ICIs in the earlier treatment lines and adjuvant settings, the number of survivors with ICI-related hearing loss is expected to increase. Further research is needed to define the true prevalence of ICI-related hearing loss, optimal diagnosis, and management.
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Affiliation(s)
- Deniz Can Guven
- Medical Oncology Clinic, Health Sciences University, Elazig City Hospital, Ulukent, 23280, Elazig, Turkey.
| | - Enes Erul
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yunus Kaygusuz
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Baran Akagunduz
- Department of Medical Oncology, Erzincan Binali Yıldırım University Medical School, Erzincan, Turkey
| | - Saadettin Kilickap
- Department of Medical Oncology, Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Raffaele De Luca
- Department of Surgical Oncology, IRCCS Istituto Tumori "Giovanni Paolo II", 70124, Bari, Italy
| | - Alessandro Rizzo
- Struttura Semplice Dipartimentale Di Oncologia Medica Per La Presa in Carico Globale del Paziente Oncologico "Don Tonino Bello," I.R.C.C.S. Istituto Tumori "Giovanni Paolo II", Viale Orazio Flacco 65, 70124, Bari, Italy
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Farina A, Birzu C, Elsensohn MH, Picca A, Muñiz-Castrillo S, Vogrig A, Villagrán-García M, Ciano-Petersen NL, Massacesi L, Hervier B, Guégan S, Kramkimel N, Vano Y, Salem JE, Allenbach Y, Maisonobe T, Assaad S, Maureille A, Devic P, Weiss N, Pegat A, Maucort-Boulch D, Ricard D, Honnorat J, Psimaras D, Joubert B. Neurological outcomes in immune checkpoint inhibitor-related neurotoxicity. Brain Commun 2023; 5:fcad169. [PMID: 37389303 PMCID: PMC10306160 DOI: 10.1093/braincomms/fcad169] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/03/2023] [Accepted: 05/25/2023] [Indexed: 07/01/2023] Open
Abstract
While the spectrum of neurological immune checkpoint inhibitor-related adverse events is expanding, patients' outcomes are not well documented. This study aimed to assess outcomes of neurological immune-related adverse events and to identify prognostic factors. All patients experiencing grade ≥2 neurological immune-related adverse events identified at two clinical networks (French Reference Center for Paraneoplastic Neurological Syndromes, Lyon; and OncoNeuroTox, Paris) over five years were included. Modified Rankin scores were assessed at onset, 6, 12, 18 months, and last visit. A multi-state Markov model was used to estimate the transition rates between minor disability (mRS <3), severe disability (mRS 3-5), and death (mRS 6), over the study period. The state-to-state transition rates were estimated using maximum likelihood and variables were introduced into the different transitions to study their effects. A total of 147 patients were included out of 205 patients with a suspicion of neurological immune-related adverse events. The median age was 65 years (range 20-87) and 87/147 patients (59.2%) were male. Neurological immune-related adverse events involved the peripheral nervous system in 87/147 patients (59.2%), the central nervous system in 51/147 (34.7%), and both systems in 9/147 (6.1%). Paraneoplastic-like syndromes were observed in 30/147 patients (20.4%). Cancers included lung cancers (36.1%), melanoma (30.6%), urological cancers (15.6%), and others (17.8%). Patients were treated with programmed cell death protein (ligan) 1 (PD(L)1) inhibitors (70.1%), CTLA4 inhibitors (3.4%) or both (25.9%). Severe disability was reported in 108/144 patients (75.0%) at onset and in 33/146 patients (22.6%) at last visit (median follow-up duration: 12 months, range 0.5-50); 48/147 (32.7%) patients died, from cancer progression (17/48, 35.4%), neurological toxicity (15/48, 31.2%), other causes (10/48, 20.8%) or unknown causes (6/48, 12.5%). The rate of transition from severe to minor disability independently increased with melanoma [compared to lung cancer, hazard ratio = 3.26, 95%CI (1.27; 8.41)] and myositis/neuromuscular junction disorders [hazard ratio = 8.26, 95%CI (2.90; 23.58)], and decreased with older age [hazard ratio = 0.68, 95%CI (0.47; 0.99)] and paraneoplastic-like syndromes [hazard ratio = 0.29, 95%CI (0.09; 0.98)]. In patients with neurological immune-related adverse events, myositis/neuromuscular junction disorders and melanoma increase the transition rate from severe to minor disability, while older age and paraneoplastic-like syndromes result in poorer neurological outcomes; future studies are needed to optimize the management of such patients.
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Affiliation(s)
- Antonio Farina
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
- Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence 50139, Italy
| | - Cristina Birzu
- Department of Neurology 2 Mazarin, Sorbonne University, Brain Institute, INSERM UMR 1127, Groupe Hospitalier Pitié-Salpêtrière, Paris 75013, France
- OncoNeuroTox Group, Center for Patients with Neurological Complications of Oncologic Treatments Groupe Hospitalier Pitié-Salpêtrière et Hôpital Percy, Paris 75561, France
| | | | | | - Sergio Muñiz-Castrillo
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
| | - Alberto Vogrig
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
| | - Macarena Villagrán-García
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
| | - Nicolás Lundahl Ciano-Petersen
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
| | - Luca Massacesi
- Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence 50139, Italy
| | - Baptiste Hervier
- Department of Internal Medicine, AP-HP, Hôpital St Louis, Paris 75010, France
| | - Sarah Guégan
- Department of Dermatology, AP-HP, Hôpital Cochin, Paris 75014, France
- Department of Dermatology, Université de Paris Cité, Paris 75006, France
| | - Nora Kramkimel
- Department of Dermatology, AP-HP, Hôpital Cochin, Paris 75014, France
| | - Yann Vano
- Department of Medical Oncology, AP-HP, Centre Hôpital Européen Georges-Pompidou, Paris 75015, France
| | - Joe Elie Salem
- Department of Pharmacology, Sorbonne University, INSERM, UNICO-GRECO Cardio-oncology Program, CIC-1901, AP-HP, Hôpital Pitié-Salpêtrière, F-75013 Paris, France
| | - Yves Allenbach
- APHP, Department of Internal Medicine, Sorbonne University, Sorbonne University, INSERM Groupe Hospitalier Pitié-Salpêtrière, Paris 75651, France
| | - Thierry Maisonobe
- APHP, Department of Clinical Neurophysiology, Sorbonne University, Paris 75013, France
| | - Souad Assaad
- Department of Medical Oncology, Léon Bérard Cancer Center, Lyon 69008, France
| | - Aurélien Maureille
- Department of Medical Oncology, Léon Bérard Cancer Center, Lyon 69008, France
| | - Perrine Devic
- ImmuCare, Institute of Cancerology, Hospices Civils de Lyon, 69002 Lyon, France
- Department of Neurology, Hôpital Lyon Sud, Hospices Civils de Lyon, Lyon 69495, France
| | - Nicolas Weiss
- Department of Neurology, Sorbonne University, Hôpital de la Pitié-Salpêtrière, unité de Médecine Intensive Réanimation à orientation neurologique, Paris 75013, France
- Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Metabolic, Biliary and Fibro-Inflammatory Diseases of the Liver, Institute of Cardiometabolism and Nutrition (ICAN), Paris 75012, France
| | - Antoine Pegat
- Department of Neurological Functional Explorations, Hospices Civils de Lyon, Neurological Hospital, Bron 69500, France
| | - Delphine Maucort-Boulch
- Biostatistics—Bioinformatics Department, Public Health Unit. Hospices Civils de Lyon, Lyon 69003, France
- Laboratory of Biometry and Evolutionary Biology, University Claude Bernard Lyon 1, Villeurbanne 69622, France
- CNRS, UMR5558, Laboratory of Biometry and Evolutionary Biology, Biostatistics-Health Team, Villeurbanne 69622, France
| | - Damien Ricard
- OncoNeuroTox Group, Center for Patients with Neurological Complications of Oncologic Treatments Groupe Hospitalier Pitié-Salpêtrière et Hôpital Percy, Paris 75561, France
- Neurology Department, Hôpital d’Instruction des Armées Percy, Service de Santé des Armées, Clamart 92140, France
| | - Jérôme Honnorat
- Reference Centre for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Neurological Hospital, Bron 69677, France
- MeLiS - UCBL-CNRS UMR 5284—INSERM U1314, Université Claude Bernard Lyon 1, Lyon 69008, France
- ImmuCare, Institute of Cancerology, Hospices Civils de Lyon, 69002 Lyon, France
| | - Dimitri Psimaras
- Department of Neurology 2 Mazarin, Sorbonne University, Brain Institute, INSERM UMR 1127, Groupe Hospitalier Pitié-Salpêtrière, Paris 75013, France
- OncoNeuroTox Group, Center for Patients with Neurological Complications of Oncologic Treatments Groupe Hospitalier Pitié-Salpêtrière et Hôpital Percy, Paris 75561, France
| | - Bastien Joubert
- Correspondence to: Bastien Joubert, MD, PhD French Reference Centre for Paraneoplastic Neurological Syndromes, Neurological Hospital 59 Boulevard Pinel, 69677 Bron Cedex, France E-mail:
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12
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Farina A, Villagrán-García M, Honnorat J. Neurological adverse events of immune checkpoint inhibitors: An update of clinical presentations, diagnosis, and management. Rev Neurol (Paris) 2023; 179:506-515. [PMID: 36934022 DOI: 10.1016/j.neurol.2023.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
The use of immune checkpoint inhibitors (ICIs) has represented a major advance in cancer treatment. By enhancing endogenous immune responses to destroy cancer cells, ICIs can cause immune-related adverse events (irAEs), with possible involvement of any organ system. IrAEs are frequent, particularly those involving the skin or the endocrine system, and usually completely reversible after temporary immunosuppression, while neurological irAEs (n-irAEs) are relatively rare, often severe, and they carry a considerable risk of mortality and long-term disability. They usually affect the peripheral nervous system, mainly manifesting as myositis, polyradiculoneuropathy, or cranial neuropathy, and, less frequently, involve the central nervous system, causing encephalitis, meningitis, or myelitis. Although somehow reminiscent of the disorders that neurologists are familiar to deal with in their daily practice, n-irAEs are characterized by distinctive features from their idiopathic counterparts; for instance, myositis may have a predominant oculo-bulbar involvement reminiscent of myasthenia gravis and frequently associates with myocarditis; peripheral neuropathy, although often resembling Guillain-Barré syndrome, usually responds to corticosteroids. Remarkably, several associations between the neurological phenotype and the type of ICIs or the type of cancer have emerged in the last few years, and the growing administration of ICIs in patients with neuroendocrine cancers has led to an increased number of reports of paraneoplastic neurological syndromes (triggered or worsened by ICIs). This review aims to update current knowledge regarding the clinical presentation of n-irAEs. We also discuss the essential parts of the diagnostic approach, and we provide general recommendations for the management of these disorders.
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Affiliation(s)
- A Farina
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France; Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Università di Firenze, Firenze, Italy
| | - M Villagrán-García
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France
| | - J Honnorat
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France.
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13
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Ruggiero R, Balzano N, Di Napoli R, Fraenza F, Pentella C, Riccardi C, Donniacuo M, Tesorone M, Danesi R, Del Re M, Rossi F, Capuano A. Do peripheral neuropathies differ among immune checkpoint inhibitors? Reports from the European post-marketing surveillance database in the past 10 years. Front Immunol 2023; 14:1134436. [PMID: 37006303 PMCID: PMC10060793 DOI: 10.3389/fimmu.2023.1134436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
Although the immunotherapy advent has revolutionized cancer treatment, it, unfortunately, does not spare cancer patients from possible immune-related adverse events (irAEs), which can also involve the peripheral nervous system. Immune checkpoint inhibitors (ICIs), blocking cytotoxic T-lymphocyteassociated protein 4 (CTLA-4), programmed cell death protein 1 (PD-1), or programmed cell death ligand 1 (PD-L1), can induce an immune imbalance and cause different peripheral neuropathies (PNs). Considering the wide range of PNs and their high impact on the safety and quality of life for cancer patients and the availability of large post-marketing surveillance databases, we chose to analyze the characteristics of ICI-related PNs reported as suspected drug reactions from 2010 to 2020 in the European real-world context. We analyzed data collected in the European pharmacovigilance database, Eudravigilance, and conducted a systematic and disproportionality analysis. In our study, we found 735 reports describing 766 PNs occurred in patients treated with ICIs. These PNs included Guillain-Barré syndrome, Miller-Fisher syndrome, neuritis, and chronic inflammatory demyelinating polyradiculoneuropathy. These ADRs were often serious, resulting in patient disability or hospitalization. Moreover, our disproportionality analysis revealed an increased reporting frequency of PNs with tezolizumab compared to other ICIs. Guillain-Barré syndrome is a notable potential PN related to ICIs, as it is associated with a significant impact on patient safety and has had unfavorable outcomes, including a fatal one. Continued monitoring of the safety profile of ICIs in real-life settings is necessary, especially considering the increased frequency of PNs associated with atezolizumab compared with other ICIs.
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Affiliation(s)
- Rosanna Ruggiero
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Nunzia Balzano
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Raffaella Di Napoli
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Federica Fraenza
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
- *Correspondence: Federica Fraenza,
| | - Ciro Pentella
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Consiglia Riccardi
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Maria Donniacuo
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | | | - Romano Danesi
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Marzia Del Re
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Francesco Rossi
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Annalisa Capuano
- Campania Regional Centre for Pharmacovigilance and Pharmacoepidemiology, Naples, Italy
- Department of Experimental Medicine – Section of Pharmacology “L. Donatelli”, University of Campania “L. Vanvitelli”, Naples, Italy
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Qiao S, Zhang SC, Li HY, Wang ZH, Jin Y, Wang AH, Liu XW. Cytokines/chemokines and immune checkpoint molecules in anti-leucine-rich glioma-inactivated 1 encephalitis. Neurol Sci 2023; 44:1017-1029. [PMID: 36445543 DOI: 10.1007/s10072-022-06526-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE We aimed to investigate levels of cytokines/chemokines and immune checkpoint molecules in patients with anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis. METHODS The study recruited 12 patients with anti-LGI1 encephalitis and six non-inflammatory controls from the Qilu Hospital of Shandong University treated between January 2019 and December 2020. Serum levels of 30 cytokines/chemokines and 10 checkpoint molecules were measured in participants of both the groups. RESULTS In contrast to those in the control group, 24 cytokines/chemokines and 5 immune checkpoint molecules were differentially expressed in patients with anti-LGI1 encephalitis, with 14 cytokines being upregulated and 10 being downregulated. There were 1033 enriched biological processes and 61 enriched Kyoto Encyclopedia of Genes and Genomes signaling pathways. CONCLUSION A wide range of cytokines/chemokines and immune checkpoint molecules are implicated in immune regulation in anti-LGI1 encephalitis, indicating that they may serve as important targets in the development and treatment of the disease.
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Affiliation(s)
- Shan Qiao
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.,Department of Medical Genetics, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shan-Chao Zhang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Hai-Yun Li
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Zhi-Hao Wang
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Yang Jin
- Institute of Epilepsy, Shandong University, Jinan, China
| | - Ai-Hua Wang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Xue-Wu Liu
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China. .,Institute of Epilepsy, Shandong University, Jinan, China.
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Dinoto A, Mantovani E, Ferrari S, Mariotto S, Tamburin S. Cerebellar involvement associated with immune checkpoint inhibitors: A systematic review. Eur J Neurol 2023; 30:774-781. [PMID: 36325694 DOI: 10.1111/ene.15624] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/10/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND PURPOSE Immune checkpoint inhibitors (ICIs) targeting programmed death receptor 1 (PD-1), cytotoxic T-lymphocyte-associated-4 (CTLA-4) and programmed cell death ligand 1 can be associated with immune-related adverse events (iRAEs). Amongst neurological iRAEs, cerebellar involvement seems to be rare and currently lacks a proper characterization. The aim of this study was to phenotype cerebellar iRAEs. METHODS A systematic review was performed according to PRISMA guidelines including reported patients with cerebellar involvement related to ICIs and with available individual data. RESULTS After screening 2765 records, 32 studies with 46 patients were included. Median age was 63 years (20-82), and most patients were male (63.0%). Isolated cerebellitis was observed in 32.6% of cases, whilst the remaining cases had "cerebellitis plus", mostly associated with encephalitis/encephalopathy. Associated tumors included most frequently lung cancer, melanoma and Merkel cell carcinoma. PD-1 inhibitor was the most administered treatment (n = 29, 64.4%), whilst exposure to CTLA-4 inhibitor was rare (n = 2, 4.5%). Magnetic resonance imaging was abnormal in 43.2% of patients and inflammatory cerebrospinal fluid findings were frequently observed. Autoantibodies were detected in 61.9% of patients and included novel reactivities. Amongst treatment strategies, the most common were steroids (n = 36) and ICI discontinuation (n = 28, 90.3%). Relapses were reported in 10% of patients. Most patients showed improvement/remission (n = 31) but, at last follow-up, 12 had died. Isolated cerebellitis versus cerebellitis-plus differed in terms of outcomes, whilst seropositive versus seronegative patients had distinct tumor associations. DISCUSSION Cerebellar iRAEs are usually multifocal, have heterogeneous tumor associations, are most associated with PD-1 inhibitor exposure and are related to autoantibodies, including novel reactivities.
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Affiliation(s)
- Alessandro Dinoto
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Elisa Mantovani
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Sergio Ferrari
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Sara Mariotto
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Stefano Tamburin
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Martens A, Schauwvlieghe PP, Madoe A, Casteels I, Aspeslagh S. Ocular adverse events associated with immune checkpoint inhibitors, a scoping review. J Ophthalmic Inflamm Infect 2023; 13:5. [PMID: 36811715 PMCID: PMC9947214 DOI: 10.1186/s12348-022-00321-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/11/2022] [Indexed: 02/24/2023] Open
Abstract
INTRODUCTION Immune checkpoint inhibitors (ICIs) have become an important part of the treatment of multiple cancers, especially for advanced melanoma and non-small cell lung cancer. Some tumors are capable of escaping immunosurveillance by stimulating checkpoints on T-cells. ICIs prevent activation of these checkpoints and thereby stimulate the immune system and indirectly the anti-tumor response. However, the use of ICIs is associated with various adverse events. Ocular side effects are rare but may have a major impact on the quality of life of the patient. METHODS A comprehensive literature search of the medical databases Web of Science, Embase and PubMed was performed. Articles that provided a comprehensive description of a case report containing 1) cancer patient(s) treated with (a combination of) immune checkpoint inhibitors, and 2) assessed occurrence of ocular adverse events, were included. A total of 290 case reports were included. RESULTS Melanoma (n = 179; 61.7%) and lung cancer (n = 56; 19.3%) were the most frequent reported malignancies. The primary used ICIs were nivolumab (n = 123; 42.5%) and ipilimumab (n = 116; 40.0%). Uveitis was most the common adverse event (n = 134; 46.2%) and mainly related to melanoma. Neuro-ophthalmic disorders, including myasthenia gravis and cranial nerve disorders, were the second most common adverse events (n = 71; 24.5%), mainly related to lung cancer. Adverse events affecting the orbit and the cornea were reported in 33 (11.4%) and 30 cases (10.3%) respectively. Adverse events concerning the retina were reported in 26 cases (9.0%). CONCLUSION The aim of this paper is to provide an overview of all reported ocular adverse events related to the use of ICIs. The insights retrieved from this review might contribute to a better understanding of the underlying mechanisms of these ocular adverse events. Particularly, the difference between actual immune-related adverse events and paraneoplastic syndromes might be relevant. These findings might be of great value in establishing guidelines on how to manage ocular adverse events related to ICIs.
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Affiliation(s)
- A. Martens
- grid.410569.f0000 0004 0626 3338Department of Ophthalmology, University Hospitals Leuven, Louvain, Belgium
| | - P. P. Schauwvlieghe
- grid.410569.f0000 0004 0626 3338Department of Ophthalmology, University Hospitals Leuven, Louvain, Belgium
| | - A. Madoe
- grid.410569.f0000 0004 0626 3338Department of Ophthalmology, University Hospitals Leuven, Louvain, Belgium
| | - I. Casteels
- grid.410569.f0000 0004 0626 3338Department of Ophthalmology, University Hospitals Leuven, Louvain, Belgium
| | - S. Aspeslagh
- grid.411326.30000 0004 0626 3362Department of Medical Oncology, University Hospital Brussels, Brussels, Belgium
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Peripheral nervous system adverse events associated with immune checkpoint inhibitors. J Neurol 2023; 270:2975-2986. [PMID: 36800019 DOI: 10.1007/s00415-023-11625-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) represent an effective cancer immunotherapy yet are associated with immune-related adverse events (irAEs). The aim of this study was to characterize irAEs involving the peripheral nervous system (PNS-irAEs) in a real-world cohort of ICI-treated patients. METHODS Cancer patients treated with ICIs between January 2014 and March 2022 were included. Patients with PNS-irAEs were identified and divided into two groups: (1) cranial/peripheral neuropathies and (2) myasthenia gravis (MG) and/or myositis. Clinical characteristics and outcomes, measured with the modified Rankin Scale (mRS), were compared among the two groups. RESULTS Among 920 ICI-treated patients, 20 patients (2.17%) developed a PNS-irAEs. The median latency from ICI exposure was 8.8 weeks and the median time from onset to clinical nadir was 3.5 weeks. Eleven patients developed a neuropathy: polyneuropathy (n = 4), cranial neuropathy (n = 3), small-fiber neuropathy (n = 3), brachial plexopathy (n = 1). Nine patients presented MG and/or myositis: concomitant MG and myositis (n = 6), isolated myositis (n = 2), exacerbation of MG (n = 1). Immunosuppressive treatment and/or ICI withdrawal determined a significant clinical improvement, expressed by a mRS reduction, in the neuropathy group (p = 0.004), but not in the MG/myositis group (p = 0.11). Overall, death due to irAEs occurred in four patients (20%), all with MG/myositis. Compared to patients with neuropathies, those with MG/myositis had a shorter latency onset (p = 0.036), developed more frequently concomitant non-neurologic irAEs (p = 0.028) and showed a higher mortality rate (p = 0.026). CONCLUSIONS In our large cohort of ICI-treated patients, 2.17% developed PNS-irAEs. Compared to ir-neuropathies, ir-MG/myositis tend to occur earlier from ICI exposure and present a worse response to treatment and a higher mortality.
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18
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Pietris J, Santhosh S, Ferdinando Cirocco G, Lam A, Bacchi S, Tan Y, Gupta AK, Kovoor JG, Chan W. Immune Checkpoint Inhibitors and Optic Neuropathy: A Systematic Review. Semin Ophthalmol 2023:1-12. [PMID: 36683270 DOI: 10.1080/08820538.2023.2168494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Immune checkpoint inhibitors are a class of monoclonal antibodies that are used as a mainstay of immunotherapy for multiple solid organ malignancies. With the recent increase in popularity of these agents, immune-related adverse events including optic neuropathy are becoming more frequently reported. This review aims to explore the association between immune checkpoint inhibitors and optic neuropathy through analysis of incidence, clinical features, investigations, treatment, and patient outcomes. METHOD A systematic search of the databases PubMed/MEDLINE, Embase, and CENTRAL was performed from inception to September 2022. Data collection and risk of bias analysis was subsequently conducted in accordance with the PRISMA guidelines. RESULTS Eleven articles fulfilled the inclusion criteria. The results showed an increased incidence of optic neuropathy among patients receiving immune checkpoint inhibitor therapy compared to the general population. Presentation with painless reduced visual acuity and optic disc swelling was most common. Investigation findings were poorly documented. The only two patients who achieved full resolution of symptoms were treated with oral prednisolone. CONCLUSION There is a strong association between immune checkpoint inhibitor therapy and development of optic neuropathy. Although it remains uncommon, the incidence of optic neuropathy in this population exceeds that of the general population. Future research is needed to further characterise the risk profiles of patients who are most likely to develop ICI-associated optic neuropathy, and treatment pathways for these patients.
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Affiliation(s)
- James Pietris
- Faculty of Medicine, University of Queensland, Herston, Australia.,Princess Alexandra Hospital, Woolloongabba, Australia
| | - Sanjana Santhosh
- Faculty of Medicine, University of Adelaide, Adelaide, Australia
| | | | - Antoinette Lam
- Faculty of Medicine, University of Adelaide, Adelaide, Australia.,Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia
| | - Stephen Bacchi
- Faculty of Medicine, University of Adelaide, Adelaide, Australia.,Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia.,Flinders University, Bedford Park, Australia
| | - Yiran Tan
- Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia
| | - Aashray K Gupta
- Faculty of Medicine, University of Adelaide, Adelaide, Australia.,Gold Coast University Hospital, Southport, Australia
| | - Joshua G Kovoor
- Faculty of Medicine, University of Adelaide, Adelaide, Australia.,Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia
| | - WengOnn Chan
- Faculty of Medicine, University of Adelaide, Adelaide, Australia.,Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, Australia
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19
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Onwuemene OA, Nnoruka CI, Patriquin CJ, Connelly-Smith LS. Therapeutic plasma exchange in the management of immune checkpoint inhibitor-associated immune-related adverse effects: A review. Transfusion 2022; 62:2370-2390. [PMID: 36134464 DOI: 10.1111/trf.17114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Oluwatoyosi A Onwuemene
- Division of Hematology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Chizoba I Nnoruka
- Division of Hematology/Oncology, Sibley Memorial Hospital, Sibley Memorial Hospital John Hopkins University, Washington, DC, USA
| | - Christopher J Patriquin
- Department of Medicine, Division of Medical Oncology & Hematology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Laura S Connelly-Smith
- Department of Medicine, University of Washington and Fred Hutchinson Cancer Center, Seattle, Washington, USA
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20
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Dinoto A, McKeon A, Vattemi G, Carta S, Ferrari S, Mariotto S. Neuronal intermediate filament paraneoplastic autoimmunity complicating avelumab therapy of Merkel cell carcinoma. J Neuroimmunol 2022; 368:577882. [DOI: 10.1016/j.jneuroim.2022.577882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
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21
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Albarrán V, Chamorro J, Rosero DI, Saavedra C, Soria A, Carrato A, Gajate P. Neurologic Toxicity of Immune Checkpoint Inhibitors: A Review of Literature. Front Pharmacol 2022; 13:774170. [PMID: 35237154 PMCID: PMC8882914 DOI: 10.3389/fphar.2022.774170] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
Immune checkpoint inhibitors have entailed a change of paradigm in the management of multiple malignant diseases and are acquiring a key role in an increasing number of clinical sceneries. However, since their mechanism of action is not limited to the tumor microenvironment, their systemic activity may lead to a wide spectrum of immune-related side effects. Although neurological adverse events are much less frequent than gastrointestinal, hepatic, or lung toxicity, with an incidence of <5%, their potential severity and consequent interruptions to cancer treatment make them of particular importance. Despite them mainly implying peripheral neuropathies, immunotherapy has also been associated with an increased risk of encephalitis and paraneoplastic disorders affecting the central nervous system, often appearing in a clinical context where the appropriate diagnosis and early management of neuropsychiatric symptoms can be challenging. Although the pathogenesis of these complications is not fully understood yet, the blockade of tumoral inhibitory signals, and therefore the elicitation of cytotoxic T-cell-mediated response, seems to play a decisive role. The aim of this review was to summarize the current knowledge about the pathogenic mechanisms, clinical manifestations, and therapeutic recommendations regarding the main forms of neurotoxicity related to checkpoint inhibitors.
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22
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Živković SA, Al-Lahham T. Neurologic Complications of Immune Checkpoint Inhibitors. Neurology 2022. [DOI: 10.17925/usn.2022.18.1.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The clinical use of cancer immunotherapy with immune checkpoint inhibitors has transformed the management of cancer and added another effective treatment option for different types of malignancies. The blockade of immune checkpoint pathways triggers an enhanced immune response leading to cancer regression but may also lead to autoimmune toxicities or immune-related adverse events, which may involve skin, endocrine, respiratory, gastrointestinal or neurologic manifestations. Clinically relevant neurologic complications involving the central and/or peripheral nervous system affect up to 1% of patients treated with immune checkpoint inhibitors and may be associated with significant morbidity and mortality. Common neurologic complications include aseptic meningitis and encephalitis, hypophysitis, myasthenia, myositis and neuropathies. Neurologic immune-related adverse events after immune checkpoint inhibition should be distinguished from cancer progression or other complications of cancer therapy (e.g. infections). The treatment of neurologic complications may include holding or withdrawing cancer immunotherapy, anti-inflammatory and immunosuppressive therapies with corticosteroids and steroid-sparing agents, immunomodulation with intravenous immune globulin or plasmapheresis and symptomatic treatment (e.g. antiepileptic medications, pain medications).
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23
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Burton LB, Eskian M, Guidon AC, Reynolds KL. A review of neurotoxicities associated with immunotherapy and a framework for evaluation. Neurooncol Adv 2021; 3:v108-v120. [PMID: 34859238 PMCID: PMC8633791 DOI: 10.1093/noajnl/vdab107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Immuno-oncology agents, including immune checkpoint inhibitors (ICIs) and chimeric antigen receptor T (CAR-T) cell therapies, are increasing in use for a growing list of oncologic indications. While harnessing the immune system against cancer cells has a potent anti-tumor effect, it can also cause widespread autoimmune toxicities that limit therapeutic potential. Neurologic toxicities have unique presentations and can progress rapidly, necessitating prompt recognition. In this article, we review the spectrum of central and peripheral neurologic immune-related adverse events (irAEs) associated with ICI therapies, emphasizing a diagnostic framework that includes consideration of the therapy regimen, timing of symptom onset, presence of non-neurologic irAEs, pre-existing neurologic disease, and syndrome specific features. In addition, we review the immune effector cell-associated neurotoxicity syndrome (ICANS) associated with CAR-T cell therapy and address diagnostic challenges specific to patients with brain metastases. As immunotherapy use grows, so too will the number of patients affected by neurotoxicity. There is an urgent need to understand pathogenic mechanisms, predictors, and optimal treatments of these toxicities, so that we can manage them without sacrificing anti-tumor efficacy.
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Affiliation(s)
- Leeann B Burton
- Division of Neuromuscular Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mahsa Eskian
- Division of Neuromuscular Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Amanda C Guidon
- Division of Neuromuscular Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Kerry L Reynolds
- Division of Oncology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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24
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How to diagnose and manage neurological toxicities of immune checkpoint inhibitors: an update. J Neurol 2021; 269:1701-1714. [PMID: 34708250 DOI: 10.1007/s00415-021-10870-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 12/19/2022]
Abstract
As the use of cancer immunotherapy with immune checkpoint inhibitors (ICIs) is expanding rapidly for the treatment of many tumor types, it is crucial that both neurologists and oncologists become familiar with the diagnosis and treatment of neurological immune-related adverse events (n-irAEs). These are rare complications, developing in their severe forms in only 1-3% of the patients, but are highly relevant due to their mortality and morbidity burden. The diagnosis of n-irAEs is-however-challenging, as many alternative diagnoses need to be considered in the complex scenario of a patient with advanced cancer developing neurological problems. A tailored diagnostic approach is advisable according to the presentation, clinical history, and known specificities of n-irAEs. Several patterns characterized by distinct clinical, immunological, and prognostic characteristics are beginning to emerge. For example, myasthenia gravis is more likely to develop after anti-programmed cell death protein 1 (PD-1) or anti-programmed cell death ligand 1 (PD-L1) treatment, while meningitis appears more frequently after anti-cytotoxic T lymphocyte antigen-4 (CTLA-4) therapy. Also, peripheral neuropathy and Guillain-Barré syndrome seem to be more common in patients with an underlying melanoma. Central nervous system disorders (CNS) are less frequent and are more often associated with lung cancer, and some of them (especially those with limbic encephalitis and positive onconeural antibodies) have a poor prognosis. Herein, we provide an update of the recent advances in the diagnosis and treatment of neurological toxicities related to ICI use, focusing on the exclusion of alternative diagnoses, diagnostic specificities, and treatment of n-irAEs.
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25
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Zoccarato M, Grisold W, Grisold A, Poretto V, Boso F, Giometto B. Paraneoplastic Neuropathies: What's New Since the 2004 Recommended Diagnostic Criteria. Front Neurol 2021; 12:706169. [PMID: 34659082 PMCID: PMC8517070 DOI: 10.3389/fneur.2021.706169] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/30/2021] [Indexed: 12/22/2022] Open
Abstract
The diagnostic criteria published by the PNS (Paraneoplastic Neurological Syndromes) Euronetwork in 2004 provided a useful classification of PNS, including paraneoplastic neuropathies. Subacute sensory neuronopathy (SSN) was the most frequently observed peripheral PNS, whereas other forms of neuropathy, as sensory polyneuropathy, sensorimotor polyneuropathy, demyelinating neuropathies, autonomic neuropathies, and focal nerve or plexus lesions, were less frequent. At the time of publication, the main focus was on onconeural antibodies, but knowledge regarding the mechanisms has since expanded. The antibodies associated with PNS are commonly classified as onconeural (intracellular) and neuronal surface antibodies (NSAbs). Since 2004, the number of antibodies and the associated tumors has increased. Knowledge has grown on the mechanisms underlying the neuropathies observed in lymphoma, paraproteinemia, and multiple myeloma. Moreover, other unrevealed mechanisms underpin sensorimotor neuropathies and late-stage neuropathies, where patients in advanced stages of cancer—often associated with weight loss—experience some mild sensorimotor neuropathy, without concomitant use of neurotoxic drugs. The spectrum of paraneoplastic neuropathies has increased to encompass motor neuropathies, small fiber neuropathies, and autonomic and nerve hyperexcitability syndromes. In addition, also focal neuropathies, as cranial nerves, plexopathies, and mononeuropathies, are considered in some cases to be of paraneoplastic origin. A key differential diagnosis for paraneoplastic neuropathy, during the course of cancer disease (the rare occurrence of a PNS), is chemotherapy-induced peripheral neuropathy (CIPN). Today, novel complications that also involve the peripheral nervous system are emerging from novel anti-cancer therapies, as targeted and immune checkpoint inhibitor (ICH) treatment. Therapeutic options are categorized into causal and symptomatic. Causal treatments anecdotally mention tumor removal. Immunomodulation is sometimes performed for immune-mediated conditions but is still far from constituting evidence. Symptomatic treatment must always be considered, consisting of both drug therapy (e.g., pain) and attempts to treat disability and neuropathic pain.
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Affiliation(s)
- Marco Zoccarato
- Neurology Unit O.S.A., Azienda Ospedale-Università di Padova, Padova, Italy
| | - Wolfgang Grisold
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology Donaueschingenstraße 13 A-1200 Vienna, Vienna, Austria
| | - Anna Grisold
- Department of Neurology, Medical University Vienna, Vienna, Austria
| | - Valentina Poretto
- Neurology Unit, Ospedale S Chiara, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - Federica Boso
- Neurology Unit, Ospedale S Chiara, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - Bruno Giometto
- Neurology Unit, Ospedale S Chiara, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy.,Department of Neurology, University of Trieste, Trieste, Italy
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26
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Seki M, Kitano S, Suzuki S. Neurological disorders associated with immune checkpoint inhibitors: an association with autoantibodies. Cancer Immunol Immunother 2021; 71:769-775. [PMID: 34515815 DOI: 10.1007/s00262-021-03053-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022]
Abstract
Among diverse neurological immune-related adverse events (irAEs), autoimmune encephalitis, aseptic meningitis, Guillain-Barré syndrome (GBS), myasthenia gravis (MG), and myositis are particularly important. The clinical presentation may be different from that of patients with conditions unrelated to immune checkpoint inhibitors (ICIs). Many of the autoantibodies detected in patients' sera are committed to the pathogenesis, while the clinical significance of such autoantibodies in cases of neurological irAEs is different from the significance in cases of typical neuronal disorders. A broad range of clinical symptoms complicates the diagnosis of autoimmune encephalitis. The clinical features of aseptic meningitis induced by classical drugs are different from those of aseptic meningitis induced by ICIs. Although autoantibodies against synaptic receptors or neuronal cell surface proteins are not detected, anti-Ma2 antibodies, which are onconeural antibodies against intracellular proteins, are detected in patients with autoimmune encephalitis associated with ICIs. GBS induced by ICIs sometimes shows gradual progression and a relapse of symptoms, suggesting chronic inflammatory demyelinating polyneuropathy. Bulbar symptoms and myasthenic crisis are frequently observed in ICI-induced MG. Anti-acetylcholine receptor antibodies are found in only half of patients with MG occurring as an irAE. ICI-induced myositis is accompanied by ocular muscle symptoms, such as ptosis and diplopia, which can suggest MG. Patients receiving ICI treatment present clinical features and laboratory findings that represent a mixture of MG and myositis. Anti-striational antibodies may act as biomarkers in cases in which MG and myositis overlap. A correct understanding of neurological adverse events is required to achieve the best management of patients.
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Affiliation(s)
- Morinobu Seki
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shigehisa Kitano
- Division of Cancer Immunotherapy Development, Center for Advanced Medical Development, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shigeaki Suzuki
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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Abstract
PURPOSE OF THE REVIEW The neuromuscular complications of cancer therapy include chemotherapy-induced peripheral neurotoxicity (CIPN), immune-related neuromuscular complications to immune checkpoint inhibitors and radiation-induced neuropathy/plexopathy. With a wider focus on CIPN, we will discuss new pathogenetic insights, recent predictive biomarkers and emerging therapies for neuromuscular complications of cancer therapy. RECENT FINDINGS Findings from recent preclinical studies have improved our knowledge on new CIPN pathogenetic pathways, including the activation of senescence-like processes in neurons, axonal degeneration and neuroinflammation. Metabolomics and serum neurofilament light chain levels appear the most promising biomarkers to predict CIPN development and severity. There is some recent evidence of promising pharmacological compounds to prevent or treat CIPN, and new drugs are in early development and testing. SUMMARY A multimodal assessment, with neurophysiological, imaging and patient-reported outcome measures, coupled with the use of reliable blood or genetic biomarkers, may offer pathogenetic grounds for future preventive and symptomatic strategies for the multidisciplinary treatment of neuromuscular complications of cancer therapy.
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28
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Bruno F, Palmiero RA, Ferrero B, Franchino F, Pellerino A, Milanesi E, Soffietti R, Rudà R. Pembrolizumab-Induced Isolated Cranial Neuropathy: A Rare Case Report and Review of Literature. Front Neurol 2021; 12:669493. [PMID: 34046006 PMCID: PMC8144636 DOI: 10.3389/fneur.2021.669493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/25/2021] [Indexed: 12/14/2022] Open
Abstract
Introduction: Anti-PD1 agents are widely used in the treatment of solid tumors. This has prompted the recognition of a class of immune-related adverse events (irAEs), due to the activation of autoimmune T-cells. Pembrolizumab is an anti-PD1 agent, which has been related to an increased risk of various neurological irAE (n-irAEs). Here, we present a rare case of pembrolizumab-induced neuropathy of cranial nerves. Case Report: A 72-year-old patient was diagnosed with a lung adenocarcinoma in February 2018 (EGFR-, ALK-, and PDL1 90%). According to the molecular profile, pembrolizumab was started. After three administrations, the patient developed facial paresis, ptosis, ophthalmoplegia, and dysphonia. As brain metastases and paraneoplastic markers were excluded, a drug-related disorder was suspected and pembrolizumab was discontinued. A nerve conduction study and electromyography excluded signs of neuropathy and myopathy at four limbs, and repetitive nerve stimulation was negative. However, altered blink reflex and nerve facial conduction were consistent with an acute neuropathy of the cranial district. Thus, the patient was treated with two cycles of intravenous immunoglobulins (IVIg), which rapidly allowed improvement of both symptoms and neurophysiological parameters. However, the patient died in October 2018 for a progression of lung tumor. Discussion: Only 16 cases of pembrolizumab-related neuropathies have been described so far. Our case is of particular interest for the isolated involvement of cranial nerves and the prompt response to IVIg. Conclusion: N-irAEs are insidious conditions that require solid knowledge of onco-immunotherapy complications: it is mandatory not to delay any treatment that would potentially modify the course of a neurological complication.
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Affiliation(s)
- Francesco Bruno
- Department of Neuro Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Rosa Antonietta Palmiero
- Department of Neuro Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Bruno Ferrero
- Department of Neurology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Federica Franchino
- Department of Neuro Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Alessia Pellerino
- Department of Neuro Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Enrica Milanesi
- Department of Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Riccardo Soffietti
- Department of Neuro Oncology, University Hospital of the City of Health and Science of Turin, Turin, Italy
| | - Roberta Rudà
- Department of Neurology, Castelfranco Veneto Hospital, Castelfranco Veneto, Italy
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29
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Flanagan EP. Paraneoplastic disorders of the nervous system. J Neurol 2021; 268:4899-4907. [PMID: 33904967 DOI: 10.1007/s00415-021-10570-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 12/19/2022]
Abstract
This article on paraneoplastic neurologic disorders provides an update on the diagnostic approach, utility and pitfalls of autoantibody testing and emerging settings in which these disorders are encountered. Recognition of the clinical and neuroimaging features accompanying paraneoplastic neurologic disorders is crucial to select those at highest risk who need neural antibody testing and screening for cancer. Cursory knowledge of the antibody assay methodology being ordered is important as the false positive rate varies by the technique utilized for detection. Antibodies can generally be stratified by the location of the target antigen (intraceullar versus cell-surface/synaptic) which informs frequency of cancer association, treatment response and prognosis. The therapeutic approach generally involves detection of the underlying cancer and combinations of oncologic treatments and immunosuppressant medications. The occurrence of paraneoplastic autoimmune neurologic disorders in novel settings, such as with immune checkpoint inhibitor use, has improved understanding of their pathogenesis and increased the likelihood neurologists will encounter such patients in their practice.
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Affiliation(s)
- Eoin P Flanagan
- Department of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
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30
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Valencia-Sanchez C, Zekeridou A. Paraneoplastic Neurological Syndromes and Beyond Emerging With the Introduction of Immune Checkpoint Inhibitor Cancer Immunotherapy. Front Neurol 2021; 12:642800. [PMID: 33897597 PMCID: PMC8062756 DOI: 10.3389/fneur.2021.642800] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/15/2021] [Indexed: 12/19/2022] Open
Abstract
Paraneoplastic neurological syndromes are more commonly seen with malignancies such as small cell lung cancer, thymoma, gynecological malignancies, and breast cancer as well as seminoma. With the introduction of immune checkpoint inhibitor (ICI) cancer immunotherapy we see an increase of autoimmune neurological complications in patients with malignancies not traditionally associated with paraneoplastic neurological syndromes, such as melanoma and renal cell carcinoma. Immune checkpoint inhibitors enhance antitumor immune responses resulting often in immune-related adverse effects that can affect any organ, including the central and peripheral nervous system, neuromuscular junction and muscle. Neurological complications are rare; neuromuscular complications are more common than central nervous system ones but multifocal neurological presentations are often encountered. The vast majority of neurological complications appear within 3 months of ICI initiation, but have been described even after ICI cessation. Neural autoantibody testing reveals autoantibodies in approximately half of the patients with CNS complications. Early suspicion and diagnosis is critical to avoid worsening and improve outcomes. Therapeutic strategies depend on the severity of the symptoms and initially typically involve discontinuation of ICI and high dose steroids. Further immunosuppression might be necessary. Outcomes are dependent on patient's characteristics and clinical presentations.
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Affiliation(s)
- Cristina Valencia-Sanchez
- Departments of Neurology and Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Anastasia Zekeridou
- Departments of Neurology and Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN, United States
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31
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Marini A, Bernardini A, Gigli GL, Valente M, Muñiz-Castrillo S, Honnorat J, Vogrig A. Neurologic Adverse Events of Immune Checkpoint Inhibitors: A Systematic Review. Neurology 2021; 96:754-766. [PMID: 33653902 DOI: 10.1212/wnl.0000000000011795] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 01/28/2021] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To define the clinical characteristics, management, and outcome of neurologic immune-related adverse events (n-irAEs) of immune checkpoint inhibitors (ICIs). METHODS Systematic review of the literature following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. RESULTS A total of 694 articles were identified. Two hundred fifty-six articles, with 428 individual patients, met the inclusion criteria. Reports regarding neuromuscular disorders (319/428, 75%) were more frequent than those on CNS disorders (109/428, 25%). The most common n-irAEs reports were myositis (136/428, 32%), Guillain-Barré syndrome and other peripheral neuropathies (94/428, 22%), myasthenic syndromes (58/428, 14%), encephalitis (56/428, 13%), cranial neuropathies (31/428, 7%), meningitis (13/428, 3%), CNS demyelinating diseases (8/428, 2%), and myelitis (7/428, 2%). Other CNS disorders were detected in 25/428 (6%) patients. Compared with the whole sample, myasthenic syndromes were significantly more Ab positive (33/56, 59%; p < 0.001). Anti-programmed cell death protein 1/programmed cell death ligand 1 was more frequent in myasthenic syndromes (50/58, 86%; p = 0.005) and less common in meningitis (2/13, 15%; p < 0.001) and cranial neuropathies (13/31, 42%; p = 0.005). Anti-cytotoxic T-lymphocyte antigen-4 ICIs were more frequent in meningitis (8/13, 62%; p < 0.001) and less common in encephalitis (2/56, 4%; p = 0.009) and myositis (12/136, 9%; p = 0.01). Combination of different ICIs was more frequent in cranial neuropathies (12/31, 39%; p = 0.005). Melanoma was more frequent in patients with peripheral neuropathies (64/94, 68%; p = 0.003) and less common in encephalitis (19/56, 34%; p = 0.001). The highest mortality rate was reached in myasthenic syndromes (28%). CONCLUSION Considering the increasing use of ICI therapy in the forthcoming future, this information can be valuable in assisting neurologists and oncologists in early n-irAEs diagnosis and treatment.
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Affiliation(s)
- Alessandro Marini
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Andrea Bernardini
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Gian Luigi Gigli
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Mariarosaria Valente
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Sergio Muñiz-Castrillo
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Jérôme Honnorat
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France
| | - Alberto Vogrig
- From the Clinical Neurology Unit (A.M., A.B., G.L.G., M.V., A.V.), Santa Maria Della Misericordia University Hospital; Department of Medicine (DAME) (A.M., G.L.G., M.V.), University of Udine Medical School, Italy; French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis (S.M.-C., J.H., A.V.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team (S.M.-C., J.H., A.V.), NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310; and University Claude Bernard Lyon 1 (S.M.-C., J.H., A.V.), Université de Lyon, France.
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