Ignite Creation Date:
2025-12-24 @ 11:40 PM
Ignite Modification Date:
2025-12-25 @ 9:30 PM
Study NCT ID:
NCT01436851
Status:
COMPLETED
Last Update Posted:
2017-08-16
First Post:
2011-08-16
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Nasal Provocation Testing in Occupational Rhinitis
Sponsor:
Haukeland University Hospital
Organization:
Study Overview
Official Title:
Nasal Provocation Testing With Nasal Lavage in Allergic and Non-allergic Occupational Rhinitis
Status:
COMPLETED
Status Verified Date:
2017-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
NPT
Brief Summary:
In a previous study the investigators found that many bakery workers were sensitized to storage mites, and many had rhinitis symptoms. The role of storage mites as an occupational allergen with clinical relevance has been questioned, and the investigators wanted to investigate whether a nasal provocation with a storage mite extract would trigger symptoms and objective signs of rhinitis in bakery workers and a control group.
Detailed Description:
The investigations include allergy testing with skin prick testing, and measuring of specific Immunoglobulin E (IgE) in sera, answering a questionnaire, and symptom scoring before and after provocations. The participants will be investigated one day with a placebo, and another day with the allergen extract of either Acarus Siro or Lepidoglyphus Destructor. As a measurement of nasal patency we use the nasal peak inspiratory flow meter, but also clinical scoring of nasal secretion and blockage. Indices of inflammation (ECP and alfa-Macroglobulin) will be monitored in nasal lavage.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: