Nasal spray test could make allergy shots smarter and cheaper

NCT ID NCT04544774

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether a nasal allergen provocation test (NAPT) can help doctors start and monitor allergy immunotherapy more effectively. Researchers will follow 200 adults with allergic rhinitis who are beginning immunotherapy, using the NAPT along with blood tests and symptom questionnaires over three years. The goal is to see if this approach can improve treatment outcomes and reduce costs by tailoring therapy to each person's specific allergies.

What this could mean

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

Active substance

Allergen immunotherapy (AIT) – allergy shots or drops

What this could lead to

If successful, this could help doctors personalize allergy treatment, saving time and money by only treating the allergens that matter most.

What could go wrong

This is an observational study, not a test of a new treatment. It may not lead to changes in practice, and results depend on patient participation over three years.

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 rhinitis perennial allergic rhinitis seasonal allergic rhinitis

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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

  • Contact

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

Locations

  • AZ Sint-Jan

    NOT_YET_RECRUITING

    Bruges, 8000, Belgium

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

  • UZ Leuven

    RECRUITING

    Leuven, Vlaam Brabant, 3000, Belgium

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

    Contact

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