Post-stroke Immunological Changes in Young Stroke Patients
NCT ID: NCT03725137
Last Updated: 2019-12-04
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
77 participants
OBSERVATIONAL
2020-01-31
2022-12-31
Brief Summary
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Detailed Description
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T-cell activation is associated with destruction of brain tissue. In neurodegenerative diseases that primarily impair cognitive functions, e. g., Alzheimers Disease, T-cells were identified as important mediators of disease pathology. Activation of cells of the adaptive immune system, most importantly T-cells, has been also investigated in experimental stroke. Here, these cells significantly contribute to secondary brain tissue damage. Stroke is associated with massive changes of the central and peripheral immune response. The investigators and other groups demonstrated that despite an overall lymphopenia, T-cells are functionally intact and pro-inflammatorily polarized, for at least two weeks post-stroke. Depletion of T cells has been shown to reduce infarct volume and to improve outcome in mice post-experimental stroke.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Group A (young stroke)
Young stroke patients (≤ 55); Analysis of T-lymphocytes regarding: post-stroke t-cell priming (activation marker, polarization), cognitive tests; structural MRI
Analysis of T-lymphocytes
Analysis of T-lymphocytes regarding the development of cognitive function after stroke
Interventions
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Analysis of T-lymphocytes
Analysis of T-lymphocytes regarding the development of cognitive function after stroke
Eligibility Criteria
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Inclusion Criteria
* Age \> 18; ≤ 55
* Provision of written informed consent or through a surrogate as appropriate
* Willingness to participate in follow-up
* National Institute of Health Stroke Scale Score (NIHSS) ≥ 4
* German as first language (neuropsychological tests and cut-offs developed for native speakers)
Exclusion Criteria
* Signs of infection on admission (C-reactive protein ≥ 50 mg/L)
* Patients receiving immunosuppressive drugs or diagnosed with a malignancy or severe neurological diseases other than stroke (e.g., neurodegenerative movement disorders, motoneuron diseases)
18 Years
55 Years
ALL
No
Sponsors
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University Medicine Greifswald
OTHER
Responsible Party
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Principal Investigators
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Agnes Flöel, Prof.Dr.med.
Role: STUDY_DIRECTOR
University Medicine Greifswald
Central Contacts
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References
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Neau JP, Ingrand P, Mouille-Brachet C, Rosier MP, Couderq C, Alvarez A, Gil R. Functional recovery and social outcome after cerebral infarction in young adults. Cerebrovasc Dis. 1998 Sep-Oct;8(5):296-302. doi: 10.1159/000015869.
Waje-Andreassen U, Thomassen L, Jusufovic M, Power KN, Eide GE, Vedeler CA, Naess H. Ischaemic stroke at a young age is a serious event--final results of a population-based long-term follow-up in Western Norway. Eur J Neurol. 2013 May;20(5):818-23. doi: 10.1111/ene.12073. Epub 2013 Jan 7.
Babulal GM, Huskey TN, Roe CM, Goette SA, Connor LT. Cognitive impairments and mood disruptions negatively impact instrumental activities of daily living performance in the first three months after a first stroke. Top Stroke Rehabil. 2015 Apr;22(2):144-51. doi: 10.1179/1074935714Z.0000000012. Epub 2015 Mar 2.
Carod-Artal J, Egido JA, Gonzalez JL, Varela de Seijas E. Quality of life among stroke survivors evaluated 1 year after stroke: experience of a stroke unit. Stroke. 2000 Dec;31(12):2995-3000. doi: 10.1161/01.str.31.12.2995.
Hommel M, Miguel ST, Naegele B, Gonnet N, Jaillard A. Cognitive determinants of social functioning after a first ever mild to moderate stroke at vocational age. J Neurol Neurosurg Psychiatry. 2009 Aug;80(8):876-80. doi: 10.1136/jnnp.2008.169672. Epub 2009 Apr 8.
Nys GM, Van Zandvoort MJ, De Kort PL, Jansen BP, Van der Worp HB, Kappelle LJ, De Haan EH. Domain-specific cognitive recovery after first-ever stroke: a follow-up study of 111 cases. J Int Neuropsychol Soc. 2005 Nov;11(7):795-806. doi: 10.1017/s1355617705050952.
Spani C, Suter T, Derungs R, Ferretti MT, Welt T, Wirth F, Gericke C, Nitsch RM, Kulic L. Reduced beta-amyloid pathology in an APP transgenic mouse model of Alzheimer's disease lacking functional B and T cells. Acta Neuropathol Commun. 2015 Nov 11;3:71. doi: 10.1186/s40478-015-0251-x.
Dirnagl U, Klehmet J, Braun JS, Harms H, Meisel C, Ziemssen T, Prass K, Meisel A. Stroke-induced immunodepression: experimental evidence and clinical relevance. Stroke. 2007 Feb;38(2 Suppl):770-3. doi: 10.1161/01.STR.0000251441.89665.bc.
Meisel C, Schwab JM, Prass K, Meisel A, Dirnagl U. Central nervous system injury-induced immune deficiency syndrome. Nat Rev Neurosci. 2005 Oct;6(10):775-86. doi: 10.1038/nrn1765.
Prass K, Meisel C, Hoflich C, Braun J, Halle E, Wolf T, Ruscher K, Victorov IV, Priller J, Dirnagl U, Volk HD, Meisel A. Stroke-induced immunodeficiency promotes spontaneous bacterial infections and is mediated by sympathetic activation reversal by poststroke T helper cell type 1-like immunostimulation. J Exp Med. 2003 Sep 1;198(5):725-36. doi: 10.1084/jem.20021098. Epub 2003 Aug 25.
Vogelgesang A, May VE, Grunwald U, Bakkeboe M, Langner S, Wallaschofski H, Kessler C, Broker BM, Dressel A. Functional status of peripheral blood T-cells in ischemic stroke patients. PLoS One. 2010 Jan 14;5(1):e8718. doi: 10.1371/journal.pone.0008718.
Gorelick PB, Sacco RL. Stroke risk and prevention: introduction. Stroke. 2010 Oct;41(10 Suppl):S2. doi: 10.1161/STROKEAHA.110.598433. No abstract available.
Hurn PD, Subramanian S, Parker SM, Afentoulis ME, Kaler LJ, Vandenbark AA, Offner H. T- and B-cell-deficient mice with experimental stroke have reduced lesion size and inflammation. J Cereb Blood Flow Metab. 2007 Nov;27(11):1798-805. doi: 10.1038/sj.jcbfm.9600482. Epub 2007 Mar 28.
Other Identifiers
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immuno_stroke
Identifier Type: -
Identifier Source: org_study_id
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