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Clinical Disease Activity With Long Term Natalizumab Treatment

3. januar 2019 oppdatert av: Biogen

MRI and Clinical Disease Activity in Patients Treated Long Term With Natalizumab

The primary objective of the study is to retrospectively investigate the proportion of participants free of new or enlarging fluid-attenuated inversion recovery (FLAIR) lesions over time in approximately 300 Relapsing-Remitting Multiple Sclerosis (RRMS) participants with regular MRI follow-up, who have received natalizumab ≥24 month from two different observational cohorts: 1) approximately 230 participants from the Czech Republic; and 2) approximately 70 participants from Belgium. The secondary objectives of this study are as follows: Brain volume change by various measures; Changes in the number and volume of magnetic resonance imaging (MRI) lesions; No evidence of disease activity (NEDA) with and without brain volume change.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Natalizumab will not be provided to participants by Biogen as a part of this study. Participants will remain on natalizumab therapy as prescribed by their physician.

Studietype

Observasjonsmessig

Registrering (Faktiske)

277

Kontakter og plasseringer

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

Studiesteder

  • Belgia
      • Brussels, Belgia
        • Research Site 1
      • Brussels, Belgia
        • Research Site 2
      • Overpelt, Belgia
        • Research Site
  • Tsjekkia
      • Prague, Tsjekkia
        • Research Site

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 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Sannsynlighetsprøve

Studiepopulasjon

Participants who have been receiving treatment with natalizumab for ≥24 months.

Beskrivelse

Key Inclusion Criteria:

  • Diagnosis of RRMS.
  • Continuous treatment with natalizumab of ≥24 months. In case of a treatment interruption from natalizumab ≥60 days after a total treatment period of ≥24 months, only the treatment prior to the interruption will be analyzed. Any data after this treatment interruption (even if the patient restarts natalizumab) will not be analyzed/collected.
  • ≥1 MRI scan of sufficient quality for reliable measurement.
  • Baseline MRI scan ≤6 month prior to natalizumab treatment acquired.
  • ≥1 MRI scan of sufficient quality for reliable measurement taken while on natalizumab treatment for ≥6 months.
  • EDSS ≤ 6.5.

Key Exclusion Criteria:

  • Anti-natalizumab antibody detection.
  • Prior treatment with alemtuzumab.
  • Prior treatment with mitoxantrone within 12 months of the first infusion of natalizumab.

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Czech Republic
Approximately 230 participants with RRMS receiving commercial natalizumab in Czech Republic
Legemiddel: natalizumab
Participants with RRMS receiving commercial natalizumab in Belgium and Czech Republic
Andre navn:
  • Tysabri
  • BG00002
Belgium
Approximately 70 participants with RRMS receiving commercial natalizumab in Belgium
Legemiddel: natalizumab
Participants with RRMS receiving commercial natalizumab in Belgium and Czech Republic
Andre navn:
  • Tysabri
  • BG00002

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change over time in the number of participants free of new or enlarging FLAIR lesions
Tidsramme: Treatment years 3 and 4
Lesions that are ≥5 mm per scan (slice thickness 3 mm) as assessed by semiautomatic lesion count (by the Icometrix algorithm).
Treatment years 3 and 4

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Annualized brain volume change rate as assessed by % change in brain parenchymal fraction [BPF]
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Annualized brain volume change rate as assessed by percent brain volume change [PBVC]
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Annualized brain volume change rate as assessed by white matter [WM] and gray matter [GM] atrophy)
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Cumulative number of new ≥6-month confirmed T1-hypointense lesions
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Annualized T1-hypointense and FLAIR lesion volume change
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Cumulative percent change in T1-hypointense and FLAIR lesion volume
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4
Cumulative number of ≥6-month-confirmed T1-hypointense lesions arising from new on- treatment Gadolinium (Gd+)-enhancing lesions
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
No relapse and no ≥6-month confirmed Expanded Disability Status Scale (EDSS) progression and no new or enlarging FLAIR lesions and no new Gd+-enhancing lesions
Post long term treatment with natalizumab (>2 years) through Year 4
Number of total participants and 4-year completers with NEDA as measured by clinical measures
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
No relapse and no ≥6-month confirmed EDSS progression and no new or enlarging FLAIR lesions and no new Gd+-enhancing lesions, brain volume change rate as assessed by PBVC
Post long term treatment with natalizumab (>2 years) through Year 4
Number of total participants and 4-year completers with NEDA as measured by radiological measures
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
No new or enlarging FLAIR lesions and no new Gd+-enhancing lesions
Post long term treatment with natalizumab (>2 years) through Year 4
Number of participants with brain volume loss ≤0.2% and ≤0.4%
Tidsramme: Post long term treatment with natalizumab (>2 years) through Year 4
Post long term treatment with natalizumab (>2 years) through Year 4

Samarbeidspartnere og etterforskere

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

Sponsor

Biogen

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)

31. desember 2015

Primær fullføring (Faktiske)

18. august 2016

Studiet fullført (Faktiske)

18. august 2016

Datoer for studieregistrering

Først innsendt

3. desember 2015

Først innsendt som oppfylte QC-kriteriene

4. februar 2016

Først lagt ut (Anslag)

9. februar 2016

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

4. januar 2019

Siste oppdatering sendt inn som oppfylte QC-kriteriene

3. januar 2019

Sist bekreftet

1. desember 2018

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • BEL-TYS-14-10727

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