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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
Effects of Multiple Nasal Exposures to House Dust Mite Allergen on Nasal and Body Inflammation and Airway Sensitivity
Scientific title
Assessment of the Effects of Multiple Nasal Antigen Challenges With Dust Mite Allergen on Local and Systemic Allergic Inflammation and Bronchoreactivity in Subjects With Allergic Rhinitis Sensitive to House Dust Mite - a Feasibility and Site Evaluation Study
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Allergic Rhinitis 0 0
Condition category
Condition code
Inflammatory and Immune System 0 0 0 0
Inflammatory and Immune System 0 0 0 0
Other inflammatory or immune system disorders
Respiratory 0 0 0 0
Other respiratory disorders / diseases

Study type
Description of intervention(s) / exposure
Treatment: Drugs - Dust mite extract, Fluticasone, Methacholine

Treatment: Drugs: Dust mite extract, Fluticasone, Methacholine
Dust mite extract, Fluticasone, Methacholine

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Primary outcome [1] 0 0
Total nasal symptom score recorded at baseline, and at pre-challenge,15 mins, 30 mins,and at 1,2,3,4,8 hours
Timepoint [1] 0 0
throughout the study
Secondary outcome [1] 0 0
Peak nasal inspiratory flow at time points of total nasal symptom score. Mechanistic markers during challenge days. Exhaled nitric oxide,forced expiratory vol in 1 second & airway resistance at baseline, first & last day
Timepoint [1] 0 0
throughout the study

Key inclusion criteria
- Healthy non-smoking subjects with a history of allergic rhinitis consistent with dust
mite allergy showing

- A positive skin prick test to dust mite at or within the 12 months before study start

- Demonstrate symptomatic worsening after graded nasal allergen challenge
Minimum age
18 Years
Maximum age
55 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
- Subjects found to be very sensitive to house dust mites (if the skin prick test
produces a wheal of mean with a diameter greater than 11 mm).

- Presence of any respiratory disease other than a history of mild stable asthma not
requiring regular treatment.

- Any known contraindications for methacholine challenge testing

Other protocol-defined inclusion/exclusion criteria may apply.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?

Intervention assignment
Other design features
Not Applicable
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Novartis Investigative site - Sydney
Recruitment postcode(s) [1] 0 0
- Sydney

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry

Ethics approval
Ethics application status

Brief summary
This study will evaluate whether multiple nasal antigen challenges with dust mite allergen
produces increases in nasal symptoms and local allergic inflammatory cells in the nose and
the blood.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
Address 0 0
Investigative site
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications