Could a cheaper copy of ocrevus work just as well for MS?

NCT ID NCT06847724

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 3 trial tests whether CYB704, a proposed biosimilar to the MS drug Ocrevus, works the same way in the body. About 183 people with relapsing multiple sclerosis will receive either CYB704 or Ocrevus. Researchers will compare drug levels, MRI scans, and side effects to see if the biosimilar is a viable alternative.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Ocrelizumab (proposed biosimilar CYB704)

What this could lead to

If successful, CYB704 could offer a more affordable treatment option for relapsing multiple sclerosis, potentially increasing access to care.

What could go wrong

This is a biosimilar study, not a new drug. Even if CYB704 matches Ocrevus in the body, long-term safety and effectiveness still need confirmation. As with Ocrevus, risks include infusion reactions and increased infection risk.

Disclaimer Read more

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for RELAPSING MULTIPLE SCLEROSIS are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

relapsing-remitting multiple sclerosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Sandoz Investigational Site

    Maitland, Florida, 32751, United States

  • Sandoz Investigational Site

    Ormond Beach, Florida, 32174, United States

  • Sandoz Investigational Site

    Banja Luka, Bosnia and Herzegovina

  • Sandoz Investigational Site

    Bihać, Bosnia and Herzegovina

  • Sandoz Investigational Site

    Sarajevo, Bosnia and Herzegovina

  • Sandoz Investigational Site

    Pleven, Bulgaria

  • Sandoz Investigational Site

    Plovdiv, Bulgaria

  • Sandoz Investigational Site

    Sofia, Bulgaria

  • Sandoz Investigational Site

    Varaždin, Croatia

  • Sandoz Investigational Site

    Zagreb, Croatia

  • Sandoz Investigational Site

    Rustavi, Georgia

  • Sandoz Investigational Site

    Tbilisi, Georgia

  • Sandoz Investigational Site

    Shtip, North Macedonia

  • Sandoz Investigational Site

    Skopje, North Macedonia

  • Sandoz Investigational Site

    Bydgoszcz, Poland

  • Sandoz Investigational Site

    Katowice, Poland

  • Sandoz Investigational Site

    Lodz, Poland

  • Sandoz Investigational Site

    Lublin, Poland

  • Sandoz Investigational Site

    Nowa Sól, Poland

  • Sandoz Investigational Site

    Poznan, Poland

  • Sandoz Investigational Site

    Szczecin, Poland

  • Sandoz Investigational Site

    Warsaw, Poland

  • Sandoz Investigational Site

    Zabrze, Poland

  • Sandoz Investigational Site

    Belgrade, Serbia

  • Sandoz Investigational Site

    Niš, Serbia

  • Sandoz Investigational Site 2

    Sarajevo, Bosnia and Herzegovina

  • Sandoz Investigational Site 2

    Plovdiv, Bulgaria

  • Sandoz Investigational Site 2

    Sofia, Bulgaria

  • Sandoz Investigational Site 2

    Tbilisi, Georgia

  • Sandoz Investigational Site 2

    Katowice, Poland

  • Sandoz Investigational Site 2

    Lublin, Poland

  • Sandoz Investigational Site 2

    Poznan, Poland

  • Sandoz Investigational Site 3

    Sofia, Bulgaria

  • Sandoz Investigational Site 3

    Tbilisi, Georgia

  • Sandoz Investigational Site 4

    Sofia, Bulgaria

  • Sandoz Investigational Site 4

    Tbilisi, Georgia

  • Sandoz Investigational Site 5

    Sofia, Bulgaria

  • Sandoz Investigational Site 5

    Tbilisi, Georgia

  • Sandoz Investigational Site 6

    Tbilisi, Georgia

  • Sandoz Investigational Site 7

    Tbilisi, Georgia

  • Sandoz Investigational Site 8

    Tbilisi, Georgia