Experimental asthma drug briquilimab fails to reach Late-Stage testing

NCT ID NCT06592768

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This Phase 1 trial tested a single dose of briquilimab in 17 adults with mild-to-moderate allergic asthma to see if it was safe and could reduce asthma attacks triggered by allergens. The study was terminated early, meaning it did not continue as planned. The main goal was to check for side effects and measure lung function after an allergen challenge.

What this could mean

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

Active substance

briquilimab (also called JSP191)

What this could lead to

If successful, this could point toward a new treatment option for allergic asthma by targeting the underlying immune response.

What could go wrong

This was a very early, small Phase 1 trial that was terminated, so results are limited. The drug may not prove effective or safe in larger studies.

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.

allergic asthma allergic disease asthma bronchial disorder Chronic Disease Hypersensitivity, Immediate immune system disorder lung disorder obstructive lung disease Respiratory Hypersensitivity respiratory system disorder

As listed by the trial registrant

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

Contacts and locations

Locations

  • McMaster University

    Hamilton, Ontario, L8N 3Z5, Canada

  • University of Alberta

    Edmonton, Alberta, T6G 2R3, Canada

  • University of British Columbia

    Vancouver, British Columbia, V6T 1Z4, Canada

  • University of Calgary

    Calgary, Alberta, T2N 1N4, Canada

  • University of Laval

    Québec, Quebec, G1V 0A6, Canada

  • University of Saskatchewan

    Saskatoon, Saskatchewan, S7N 5A2, Canada