Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Epstein-Barr Virus Antibodies in Egyptian Patients With Multiple Sclerosis

23. september 2026 opdateret af: Abeer Abdelbaset Mohamed Elsayed, Assiut University

Frequency and Clinical Significance of Epstein-Barr Virus Antibody Titers in Egyptian Patients With Multiple Sclerosis

Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system that causes variable degrees of neurological disability. Epstein-Barr virus (EBV) has been identified as an important environmental factor implicated in the pathogenesis and progression of MS. However, the serological profile, antibody titers, and clinical relevance of EBV infection among Egyptian individuals with MS remain limited.

The primary purpose of this hospital-based observational study is to evaluate the frequency and titers of EBV-specific antibodies, specifically anti-viral capsid antigen (anti-VCA) IgG and anti-Epstein-Barr virus nuclear antigen 1 (anti-EBNA1) IgG, in Egyptian patients diagnosed with MS compared with age- and sex-matched healthy controls. The study also aims to assess whether EBV antibody levels correlate with MS disease activity, degree of neurological disability, relapse frequency, clinical subtype, brain MRI lesion burden, and response to disease-modifying therapies (DMTs).

A total of 140 participants will be enrolled at the Department of Neurology and Psychiatry, Assiut University Hospital, comprising 70 adult patients with MS diagnosed according to the 2024 McDonald criteria and 70 matched healthy controls. Participants will undergo clinical and demographic assessment, neurological disability evaluation using the Expanded Disability Status Scale (EDSS) for MS patients, and review of existing brain MRI scans. A single venous blood sample will be collected from all participants to measure anti-VCA IgG and anti-EBNA1 IgG levels using enzyme-linked immunosorbent assay (ELISA).

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

140

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 55 år (Voksen)

Tager imod sunde frivillige

N/A

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

The study population comprises adult Egyptian patients aged 18 to 55 years diagnosed with multiple sclerosis who attend the Department of Neurology and Psychiatry at Assiut University Hospital (Assiut, Egypt), along with age- and sex-matched apparently healthy control individuals recruited from the same geographic region.

Beskrivelse

Inclusion Criteria:

  • Adult individuals aged 18 to 55 years.
  • Confirmed diagnosis of multiple sclerosis according to the 2024 revised McDonald criteria (for the multiple sclerosis cohort).
  • Apparently healthy individuals matched by age and sex with no history of neurological disorders (for the healthy control cohort).
  • Ability to understand study procedures and provide written informed consent.

Exclusion Criteria:

  • Individuals younger than 18 years or older than 55 years.
  • Pregnancy.
  • Active or chronic infection with human immunodeficiency virus (HIV) or viral hepatitis.
  • Past or current history of malignancy.
  • Co-existing systemic immunosuppressive or autoimmune disorders unrelated to multiple sclerosis.
  • Inability or unwillingness to provide written informed consent.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: CASE_CONTROL
  • Tidsperspektiver: CROSS_SECTIONAL

Kohorter og interventioner

Gruppe / kohorte
Multiple Sclerosis Group

70 adult Egyptian patients aged 18-55 years diagnosed with multiple sclerosis according to the 2024 McDonald criteria. Participants will undergo clinical and neurological assessment (including Expanded Disability Status Scale [EDSS] scoring, disease duration, relapse history, and disease-modifying therapy response), review of available brain MRI scans for lesion load and distribution patterns, and venous blood sampling for serological measurement of anti-VCA IgG and anti-EBNA1 IgG antibodies using ELISA.

Healthy Control Group

70 age- and sex-matched apparently healthy individuals aged 18-55 years without history of multiple sclerosis, malignancy, viral hepatitis, HIV, or other immunosuppressive disorders. Participants will undergo demographic evaluation and venous blood sampling for serological measurement of anti-VCA IgG and anti-EBNA1 IgG antibodies using ELISA to serve as a comparison cohort.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Percentage of Participants With Anti-VCA IgG Seropositivity
Tidsramme: Baseline

Assessed via enzyme-linked immunosorbent assay (ELISA) based on manufacturer-recommended optical density cut-off values to determine seropositive versus seronegative status.

Baseline
Percentage of Participants With Anti-EBNA1 IgG Seropositivity
Tidsramme: Baseline

Assessed via enzyme-linked immunosorbent assay (ELISA) based on manufacturer-recommended optical density cut-off values to determine seropositive versus seronegative status.

Baseline

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Serum Anti-VCA IgG Antibody Titers
Tidsramme: Baseline

Quantitative or semi-quantitative antibody titer/index values of anti-viral capsid antigen (VCA) IgG determined by ELISA microplate reader optical density measurements.

Baseline
Serum Anti-EBNA1 IgG Antibody Titers
Tidsramme: Baseline

Quantitative or semi-quantitative antibody titer/index values of anti-Epstein-Barr virus nuclear antigen 1 (EBNA1) IgG determined by ELISA microplate reader optical density measurements.

Baseline

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. oktober 2027

Studieafslutning (Anslået)

1. november 2027

Datoer for studieregistrering

Først indsendt

23. september 2026

Først indsendt, der opfyldte QC-kriterier

23. september 2026

Først opslået (Faktiske)

29. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

29. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • EBV Antibodies in Egyptian MS

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .