Repeat Nasal Allergen Challenge

September 13, 2023 updated by: Imperial College London

Assessment of Inflammatory Mediator and Cellular Changes Following Repeated Nasal Allergen Challenge in Subjects With Allergic Rhinitis Sensitive to Timothy Grass Pollen - a Validation Study

This is a non-drug, biomarker study to assess the utility of the model of repeated nasal allergen challenges in subjects with atopic rhinitis as a method of inducing an increased response to inhaled allergen, which will more closely resemble the responses seen during the hayfever season.

Study Overview

Detailed Description

This is a non-drug, biomarker study to assess the utility of the model of repeated nasal allergen challenges in subjects with atopic rhinitis as a method of inducing an increased response to inhaled allergen, which will more closely resemble the responses seen during the hayfever season.

Study Type

Interventional

Enrollment

22

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • London, United Kingdom, SW3 6HP
        • National Heart & Lung Institute Clinical Studies Unit

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Male and female subjects with a history of seasonal (intermittent) atopic rhinitis, aged 18-40 years.
  2. Otherwise healthy with no health problems that may jeopardize the subjects participating in the study, absence of history of other significant allergies.

Exclusion Criteria:

  1. Smokers (use of tobacco products in the previous 3 months).
  2. Presence of any respiratory disease other than a history of mild stable asthma not requiring treatment and associated with normal lung function (FEV1 > 80% predicted at screening).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Principal Investigator: Trevor T Hansel, FRCPath, Imperial College London

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2006

Study Completion

May 1, 2006

Study Registration Dates

First Submitted

February 10, 2006

First Submitted That Met QC Criteria

February 10, 2006

First Posted (Estimated)

February 13, 2006

Study Record Updates

Last Update Posted (Actual)

September 14, 2023

Last Update Submitted That Met QC Criteria

September 13, 2023

Last Verified

September 1, 2023

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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