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Evaluation of Relapse Presence in Multiple Sclerosis

20. januar 2022 oppdatert av: Marmara University

Evaluation of Relapse Presence in Multiple Sclerosis Patients by Cross-Sectional In-Vivo Corneal Confocal Microscopy

Purpose: This study aims to investigate the demonstrability of increased inflammation and neurodegeneration in multiple sclerosis (MS) patients in relapse period compared to MS patients in remission by cross-sectional analysis of in-vivo corneal confocal microscopy (IVCM), and to evaluate the alternations with a second IVCM administered at least 6 months after the relapse period.

Methods: This prospective, non-randomized-controlled, cross-sectional study included 58 MS patients which were grouped regarding the presence of relapse (MS-Relapse group [n=27] and MS-Control group [n=31]), and age-sex matched 30 healthy controls (HC). The corneal nerve fiber density (CNFD), the corneal nerve branch density (CNBD), the corneal nerve fiber length (CNFL), and dendritic cell (DC) density were evaluated in all MS patients and HCs by IVCM. If the patients in the MS-relapse group did not have an attack within 6 months, the same parameters were evaluated with the second IVCM. The patients with a history of optic neuritis or trigeminal symptoms were excluded.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Observasjonsmessig

Registrering (Faktiske)

87

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Tyrkia
      • Istanbul, Tyrkia, 34899
        • Marmara University

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 85 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Sannsynlighetsprøve

Studiepopulasjon

Fifty-eight patients with RRMS and 30 HCs were included in the study. The RRMS patients were divided into two subgroups: 1) Thirty-one patients (MS-Control) who were followed up with the diagnosis of RRMS, 2) Twenty-seven patients (MS-Relapse) for whom the administration of intravenous corticosteroids was decided due to the diagnosis of new relapse.

Beskrivelse

Inclusion Criteria:

  • Patients for whom the administration of intravenous corticosteroids was decided due to the diagnosis of new relapse
  • Patients who were followed up with the diagnosis of RRMS
  • Healthy controls

Exclusion Criteria:

  • Being younger than 18 years old
  • Having any other neurological or metabolic diseases
  • Ophthalmological diseases
  • A history of optic neuritis and trigeminal symptoms
  • Ocular trauma or surgery
  • Contact lens use
  • The patients who had a relapse attack 6 months prior to the study

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: Case-Control
  • Tidsperspektiver: Potensielle

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
MS-Relapse

Twenty-seven patients (MS-Relapse) for whom the administration of intravenous corticosteroids was decided due to the diagnosis of new relapse.

The diagnosis of RRMS and the new relapse was confirmed and decided by a senior neurologist (K.A) of Marmara University Department of Neurology, according to the revised McDonald criteria, based on clinical and radiological findings These subjects underwent Corneal Confocal Microscopy (IVCM).
Diagnostisk test: in-vivo Corneal Confocal Microscopy
All study subjects underwent IVCM (Rostock Cornea Module, Heidelberg Retinal Tomograph III; Heidelberg Engineering, Germany). Before the examination, two drops of topical anesthetic with proparacaine hydrochloride (Alcaine 0.5%, Alcon-Couvreur, Belgium) were applied to both eyes. A carbomer-based gel (Viscotears 0.2%; Dr. Gerhard Mann, Chem.- Pharm. Fabrik, Germany) was used as the coupling agent between the cornea and the applanating cap of IVCM. For correctly positioning the central cornea, all subjects were asked to fixate a determined fixation point and controlled with the device camera. All scans were performed in approximately 5 minutes for each eye by a single experienced ophthalmologist, masked from the subject's disease status.
MS-Control

Thirty-one patients (MS-Control) who were followed up with the diagnosis of RRMS The diagnosis of RRMS and the new relapse was confirmed and decided by a senior neurologist (K.A) of Marmara University Department of Neurology, according to the revised McDonald criteria, based on clinical and radiological findings.

These subjects underwent Corneal Confocal Microscopy (IVCM).
Diagnostisk test: in-vivo Corneal Confocal Microscopy
All study subjects underwent IVCM (Rostock Cornea Module, Heidelberg Retinal Tomograph III; Heidelberg Engineering, Germany). Before the examination, two drops of topical anesthetic with proparacaine hydrochloride (Alcaine 0.5%, Alcon-Couvreur, Belgium) were applied to both eyes. A carbomer-based gel (Viscotears 0.2%; Dr. Gerhard Mann, Chem.- Pharm. Fabrik, Germany) was used as the coupling agent between the cornea and the applanating cap of IVCM. For correctly positioning the central cornea, all subjects were asked to fixate a determined fixation point and controlled with the device camera. All scans were performed in approximately 5 minutes for each eye by a single experienced ophthalmologist, masked from the subject's disease status.
Healthy Controls
Thirty healthy age and gender similar population These subjects underwent Corneal Confocal Microscopy (IVCM).
Diagnostisk test: in-vivo Corneal Confocal Microscopy
All study subjects underwent IVCM (Rostock Cornea Module, Heidelberg Retinal Tomograph III; Heidelberg Engineering, Germany). Before the examination, two drops of topical anesthetic with proparacaine hydrochloride (Alcaine 0.5%, Alcon-Couvreur, Belgium) were applied to both eyes. A carbomer-based gel (Viscotears 0.2%; Dr. Gerhard Mann, Chem.- Pharm. Fabrik, Germany) was used as the coupling agent between the cornea and the applanating cap of IVCM. For correctly positioning the central cornea, all subjects were asked to fixate a determined fixation point and controlled with the device camera. All scans were performed in approximately 5 minutes for each eye by a single experienced ophthalmologist, masked from the subject's disease status.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Korneal nervefibertetthet (CNFD)
Tidsramme: Grunnlinje
Program for automatisert sporing av nervefibre - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, Storbritannia) ble brukt til å analysere CNFD.
Grunnlinje
Corneal nerve fiber density (CNFD)
Tidsramme: 6 Month
Automated tracing of nerve fibers program - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, UK) was used to analyze CNFD.
6 Month
Hornhinnenervegrendensitet (CNBD)
Tidsramme: Grunnlinje
Program for automatisert sporing av nervefibre - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, Storbritannia) ble brukt til å analysere CNBD.
Grunnlinje
Corneal nerve branch density (CNBD)
Tidsramme: 6 Month
Automated tracing of nerve fibers program - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, UK) was used to analyze CNBD.
6 Month
Corneal nerve fiber length (CNFL)
Tidsramme: Baseline
Automated tracing of nerve fibers program - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, UK) was used to analyze CNFL.
Baseline
Corneal nerve fiber length (CNFL)
Tidsramme: 6 Months
Automated tracing of nerve fibers program - CCMetrics (CCMetrics; M. A. Dabbah, ISBE, University of Manchester, Manchester, UK) was used to analyze CNFL.
6 Months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Dendritic Cells
Tidsramme: Baseline
the number of DCs counted by ImageJ's Cell Counter plug-in
Baseline
Dendritic Cells
Tidsramme: 6 Months
the number of DCs counted by ImageJ's Cell Counter plug-in
6 Months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Marmara University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. januar 2021

Primær fullføring (Faktiske)

1. oktober 2021

Studiet fullført (Faktiske)

1. januar 2022

Datoer for studieregistrering

Først innsendt

20. januar 2022

Først innsendt som oppfylte QC-kriteriene

20. januar 2022

Først lagt ut (Faktiske)

1. februar 2022

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

1. februar 2022

Siste oppdatering sendt inn som oppfylte QC-kriteriene

20. januar 2022

Sist bekreftet

1. januar 2022

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 09.2021.240

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Studerer et amerikansk FDA-regulert medikamentprodukt

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Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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