Could a drug speed recovery from Guillain-Barré syndrome?

NCT ID NCT04752566

First seen Jun 24, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This Phase 3 trial tested the drug eculizumab in 57 people with severe Guillain-Barré syndrome (GBS), a rare nerve disorder that can cause paralysis. Participants received either eculizumab or a placebo once a week for four weeks, alongside standard treatment. The study measured how quickly they regained the ability to walk and run. Results from this completed Japanese study may show whether eculizumab helps speed recovery.

What this could mean

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

Active substance
eculizumab (Soliris)
What this could lead to
If successful, eculizumab could offer a new treatment option to help people with severe Guillain-Barré syndrome recover faster and regain mobility.
What could go wrong
This is a small, completed Phase 3 trial in Japan only, so results may not apply broadly. Eculizumab carries risks like increased susceptibility to infections.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Research Site

    Bunkyō City, 113-8519, Japan

  • Research Site

    Chiba, 260-0877, Japan

  • Research Site

    Fukuoka, 814-0180, Japan

  • Research Site

    Hiroshima, 730-8518, Japan

  • Research Site

    Kagoshima, 890-8520, Japan

  • Research Site

    Kawagoe-shi, 350-8550, Japan

  • Research Site

    Kawasaki-shi, 216-8511, Japan

  • Research Site

    Kitakyushu-shi, 807-8555, Japan

  • Research Site

    Kobe, 650-0047, Japan

  • Research Site

    Kumamoto, 860-8556, Japan

  • Research Site

    Kurashiki-shi, 710-8602, Japan

  • Research Site

    Matsumoto-shi, 390-8621, Japan

  • Research Site

    Mitaka-shi, 181-8611, Japan

  • Research Site

    Nagoya, 466-8560, Japan

  • Research Site

    Niigata, 951-8520, Japan

  • Research Site

    Nishinomiya-shi, 663-8501, Japan

  • Research Site

    Sapporo, 060-8648, Japan

  • Research Site

    Sayama, 589-8511, Japan

  • Research Site

    Sendai, 983-8520, Japan

  • Research Site

    Shimotsuga-gun, 321-0293, Japan

  • Research Site

    Ube-shi, 755-8505, Japan

  • Research Site

    Yokohama, 236-0004, Japan

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