New asthma drug tezspire put to the test in Long-Term safety study

NCT ID NCT05729711

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

Summary

This study tracks 416 people with severe asthma that isn't controlled by standard treatments. All participants receive Tezspire injections and are monitored for side effects, including serious allergic reactions, infections, and heart problems. The goal is to see how safe and effective the drug is over long-term use in real-world conditions.

What this could mean

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

Active substance

Tezspire (tezepelumab) injection

What this could lead to

If successful, this study could confirm that Tezspire is safe and effective for long-term use in people with severe asthma that other treatments can't control.

What could go wrong

This is an observational follow-up study, not a new treatment trial. It may reveal unexpected side effects or show that the drug works less well over time. Results may not apply to all asthma patients.

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.

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Conditions

The condition(s) this trial relates to.

asthma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Research Site

    Aichi, Japan

  • Research Site

    Akita, Japan

  • Research Site

    Aomori, Japan

  • Research Site

    Chiba, Japan

  • Research Site

    Fukui, Japan

  • Research Site

    Fukuoka, Japan

  • Research Site

    Gifu, Japan

  • Research Site

    Gunma, Japan

  • Research Site

    Hiroshima, Japan

  • Research Site

    Hokkaido, Japan

  • Research Site

    Hyōgo, Japan

  • Research Site

    Ibaraki, Japan

  • Research Site

    Ishikawa, Japan

  • Research Site

    Kagawa, Japan

  • Research Site

    Kanagawa, Japan

  • Research Site

    Kumamoto, Japan

  • Research Site

    Kyoto, Japan

  • Research Site

    Mie, Japan

  • Research Site

    Miyagi, Japan

  • Research Site

    Nara, Japan

  • Research Site

    Numakunai, Japan

  • Research Site

    Okayama, Japan

  • Research Site

    Osaka, Japan

  • Research Site

    Ōita, Japan

  • Research Site

    Saitama, Japan

  • Research Site

    Shimane, Japan

  • Research Site

    Shizuoka, Japan

  • Research Site

    Tochigi, Japan

  • Research Site

    Tokyo, Japan

  • Research Site

    Wakayama, Japan

  • Research Site

    Yamagata, Japan

  • Research Site

    Yamaguchi, Japan

  • Research Site

    Yamanashi, Japan