Azelastine Allergen Chamber - Onset of Action Study
Randomized, Double-blind, Cross-over Clinical Trial to Assess Onset of Action and Efficacy of Azelastine Hydrochloride 0.15% Nasal Spray in the Treatment of Allergen-Induced Allergic Rhinitis Symptoms in an Environmental Exposure Unit in Comparison to Placebo and Mometasone Furoate/Olopatadine Hydrochloride Nasal Spray
2 other identifiers
interventional
84
1 country
1
Brief Summary
This study is to assess the Onset of Action and Efficacy of azelastine hydrochloride 0.15% in treating the nasal symptoms of seasonal allergic rhinitis (SAR) induced by an allergen challenge in an Environmental Exposure Unit (EEU) followed by a single dose and a 3-day treatment at home.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Oct 2023
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 27, 2023
CompletedStudy Start
First participant enrolled
October 30, 2023
CompletedFirst Posted
Study publicly available on registry
November 13, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 23, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
March 18, 2024
CompletedMarch 20, 2024
March 1, 2024
4 months
October 27, 2023
March 19, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Change from baseline in TNSS at each post-dose assessment time point (0 to 4 hours after a single dose).
Onset of action of azelastine hydrochloride 0.15% nasal spray (Azelastine 0.15%) in treating the nasal symptoms of seasonal allergic rhinitis (SAR) induced by an allergen challenge in an Environmental Exposure Unit (EEU), measured by a difference from placebo in the change from baseline in patient -assessed instantaneous Total nasal symptom score (TNSS). FDA guideline defines onset of action as the first time point after initiation of treatment when the product demonstrated a greater change from baseline compared to placebo which proved durable. The TNSS is comprised of 4 symptoms from the nose, each scored on a scale of 0 to 3 (0 = none and 3 = severe). The sum of the TNSS contributes to a score ranging from 0 - 12.
0 to 4 hours post application
Secondary Outcomes (12)
Changes from baseline in TNSS at each post-dose assessment time point (0 to 4 hours after a single dose) at Visits 3, 6, and 9.
0 to 4 hours post application
Changes from baseline in TOSS at each post-dose assessment time point (0 to 4 hours after a single dose) at Visits 3, 6, and 9.
0 to 4 hours post application
Changes from baseline in T7SS at each post-dose assessment time point (0 to 4 hours after a single dose) at Visits 3, 6, and 9.
0 to 4 hours post application
Change from baseline in individual symptom scores at each post-dose assessment time point (0 to 4 hours after a single dose) at Visits 3, 6, and 9.
0 to 4 hours post application
Changes from baseline in TNSS for all assessment time-points together.
0 to 4 hours post application
- +7 more secondary outcomes
Study Arms (6)
Treatment A (Azelair)+Treatment B (Placebo)+Treatment C (Ryaltris), min. 14 days wash-out period
EXPERIMENTALCross-over design
Treatment B (Placebo)+Treatment C (Ryaltris)+Treatment A (Azelair), min. 14 days of wash-out period
EXPERIMENTALCross-over design
Treatment C (Ryaltris)+Treatment A (Azelair)+Treatment B (Placebo), min. 14 days of wash-out period
EXPERIMENTALCross-over design
Treatment A (Azelair)+Treatment C (Ryaltris)+Treatment B (Placebo), min. 14 days of wash-out period
EXPERIMENTALCross-over design
Treatment B (Placebo)+Treatment A (Azelair)+Treatment C (Ryaltris), min.14 days of wash-out period
EXPERIMENTALCross-over design
Treatment C (Ryaltris)+Treatment B (Placebo)+Treatment A (Azelair), min. 14 days of wash-out period
EXPERIMENTALCross-over design
Interventions
2 sprays per nostril of Azelastine 0.15% twice daily. Total dose of active drug: 1644 mcg azelastine hydrochloride per day
2 sprays per nostril of Placebo twice daily.
2 sprays per nostril of Ryaltris twice daily. Total dose of active drug: 200 mcg mometasone furoate and 4800 mcg olopatadine per day
Eligibility Criteria
You may qualify if:
- Male or female subjects (childbearing and non-childbearing potential, non-childbearing potential defined as females with no menstruation for at least 1 year at screening and documented FSH \> 35 IU/L) aged 18 to 55 years (inclusive) at screening.
- History of SAR to ragweed pollen for at least the previous 2 ragweed pollen seasons.
- Positive skin prick test (SPT) response to ragweed pollen (allergen induced wheal diameter at least 3 mm larger than the negative control). A test performed at Cliantha Research in the previous 12 months may be used to qualify the subject.
You may not qualify if:
- Safety Concerns:
- History of allergic reaction to azelastine hydrochloride, olopatadine hydrochloride, mometasone furoate, or one of the excipients / components of the study treatments
- History of anaphylaxis, cardiovascular, pulmonary, hepatic, renal, gastrointestinal, hematological, endocrine, metabolic, psychiatric, neurological, or other disease at screening that may affect subject safety during the study or evaluation of the study endpoints at the discretion of the Investigator and/or designee.
- Subjects with a current diagnosis of asthma or subjects with measured forced expiratory volume in 1 second (FEV1) \<75% of the predicted value using Global Lung Function Initiative set from 2012 for references.
- Pregnant, breast-feeding, or planning a pregnancy during the study and women of childbearing potential not using adequate contraception.
- Lack of suitability for the study:
- Use of prohibited therapies as specified in the respective table of the protocol.
- Acute or chronic sinusitis or non-allergic rhinitis, at the discretion of the Investigator and/or designee.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Cliantha Research
Mississauga, Ontario, L4W1A4, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Patricia Couroux, Dr.
Cliantha Research
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 27, 2023
First Posted
November 13, 2023
Study Start
October 30, 2023
Primary Completion
February 23, 2024
Study Completion
March 18, 2024
Last Updated
March 20, 2024
Record last verified: 2024-03
Data Sharing
- IPD Sharing
- Will not share