Pivotal, Randomized, Open-Label, 3-Period Crossover Study to Assess the Efficacy and Safety of AM-301 on Allergic Symptoms During House Dust Mite Challenge in an Exposure Chamber in Study Participants With Perennial Allergic Rhinitis
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 37
- Locations
- 1
- Primary Endpoint
- Overall Change From Baseline in TNSS at Visits 3, 4 and 5
Study Overview
Brief Summary
Alleviation of allergic symptoms induced by house dust mites when using the medical device AM-301.
This clinical investigation explored the efficacy and safety of AM-301 when used to reduce symptoms of house dust mite sufferers. The primary objective was to compare the efficacy of AM-301 Device between treated and non-treated subjects in the treatment of perennial allergic rhinitis (PAR).
Detailed Description
This was a randomized, open-label, 3-period crossover study. The total study duration was approximately 65 days and consisted of 2 screening visits and 3 treatment visits (total 5 visits) followed by a telephone call. Patients with HDM allergy as assessed by their medical history and a positive skin prick test for Dermatophagoides pteronyssinus (der p) allergen were enrolled into the screening phase.
At least 7 days after the second screening visit, the treatment visits started. Eligible subjects were randomized to one of the six treatment sequences (ABC, BCA, CAB, ACB, BAC, CBA) at an equal ratio. The treatments were applied 10 minutes before the challenge at Visit 3, 4 and 5:
- Treatment A: One spray AM-301 (0.14 mL) per nostril,
- Treatment B: Two sprays AM-301 (0.28 mL) per nostril (at two defined spray angles in order to obtain a broader coverage of the nasal mucosa),
- Treatment C: no treatment.
The cross-over design allowed treatment C to be used as internal control. Between the three treatment visits in the chamber there was a 7±2 days wash-out period.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Prevention
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Main Inclusion Criteria:
- •Body mass index between 18.0 and 32.0 kg/m2 inclusive.
- •History of perennial allergic rhinitis to house dust mite for more than 1 year.
- •Positive Skin Prick Test (SPT) for Dermatophagoides pteronyssinus (der p) allergen at screening or within 12 months prior to the screening visit.
Exclusion Criteria
- •Any clinically relevant abnormal findings in physical examination, clinical chemistry, hematology, urinalysis, vital signs, lung function at screening visit, which, in the opinion of the investigator, may either put the subject at risk because of participation in the study or may influence the results of the study, or the subject's ability to participate in the study.
- •Use of any medication considered to have an influence on the outcome of the study during the EEC session, at the discretion of the Investigator and/or designee.
- •Recent nasal ulcers, mucosal erosion, nasal surgery, or nasal trauma, that might interfere with study results as determined by the Investigator and/or designee.
Outcomes
Primary Outcomes
Overall Change From Baseline in TNSS at Visits 3, 4 and 5
Time Frame: Day 8 to Day 22
Total Nasal Symptom Score (TNSS) average from 20 - 180 minutes will be compared between treated and non-treated subjects. Data from all three visits are combined. Scale for a single symptom is from 0 - 3, 0 meaning no symptoms and 3 severe symptoms. Assessed symptoms are: nasal congestion, runny nose, nasal itching and sneezing. TNSS is the sum of the rating of all 4 symptoms and ranges from 0-12.
Secondary Outcomes
- Difference of Total Nasal Symptom Score (TNSS) at Individual Timepoints During House Dust Mite Challenge in the EEC (0-180 Min) Between Single and Double Application of AM-301 and no Treatment.(Day 8 to Day 22)