Could MS patients switch to annual infusions without losing protection?

NCT ID NCT05999604

First seen Nov 01, 2025 · Last updated May 13, 2026 · Updated 27 times

Summary

This study looks at whether people with active multiple sclerosis (MS) who have been on ocrelizumab for at least 2 years can safely switch to getting infusions once a year instead of every 6 months. The goal is to see if the longer gap still prevents new brain lesions while lowering the risk of infections. About 244 adults will be randomly assigned to annual or standard biannual dosing and followed for 2 years.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • CH Gonesse

    RECRUITING

    Gonesse, 95500, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • CHI Poissy-Saint-Germain en Laye

    RECRUITING

    Poissy, 78300, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • CHU de Grenoble

    RECRUITING

    Grenoble, 38043, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • CHU de Limoges

    RECRUITING

    Limoges, 87042, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • CHU de Nice

    RECRUITING

    Nice, 06000, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • CHU de Strasbourg

    RECRUITING

    Strasbourg, 67098, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Fondation Adolphe de Rothschild

    RECRUITING

    Paris, 75019, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Hôpital Foch

    RECRUITING

    Suresnes, 92150, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Hôpital Henri Mondor

    RECRUITING

    Créteil, 94010, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Hôpital Pierre Wertheimer (HCL)

    RECRUITING

    Lyon, 69500, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Hôpital de la Pitié-Salpêtrière

    RECRUITING

    Paris, 75013, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

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