- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03209245
House Dust Mite Injection Immunotherapy in Elderly Patients. (HDMeld)
House Dust Mite Injection Immunotherapy: a Double-blind, Placebo Controlled Study in Elderly Patients With Allergic Rhinitis.
Background. Immunotherapy in elderly patients is controversial, and there is still not much evidences supporting this treatment's safety and efficacy in this population. This study was performed to evaluate the safety and efficacy of specific injection immunotherapy for house dust mite allergens in patients over 65 years of age with allergic rhinitis and a confirmed allergy to house dust mites. The primary endpoint was the change from baseline in the mean average adjusted symptom score (AAdSS) and the total combined rhinitis score (TCRS) difference in the least square means in the label in comparison to placebo.
Materials and methods. The study with double blind, placebo controlled trial was conducted in one centre. Fifty eight elderly patients with house dust mites allergy and AR were individually randomized in comparable numbers to one of two parallel groups: two years perennial AIT with the use Purethal Mites or placebo. Symptoms and medication score were presented as AAdSS and TCRS. Quality of life based on Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ), serum allergen specific IgG4 to D.pteronyssinus and D. farinae and Der p1 and Der p2 were monitoring.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 3
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- The subjects had moderate or severe intermittent allergic rhinitis and fulfilled the Allergic Rhinitis and its Impact on Asthma (ARIA) criterion
- the patients included in the study all had a positive skin prick test (SPT), were positive for specific immunoglobulin E (sIgE), and had positive nasal provocation tests (NPTs) with D.pteronyssinus and D. farinae allergens.
Exclusion Criteria:
- Patients with a clinical allergy and/or a positive skin prick test and specific IgE to other inhalant allergens were excluded from the study. Additionally, patients with any of the following characteristics were also excluded: diagnosis of bronchial asthma, non-allergic rhinitis and severe non-stable diseases. Patients with other nasal problems, such as chronic nasal obstruction, reduced olfaction, bacterial colonization, and chronic sinusitis, were diagnosed based on a CT scan and nasal endoscopy were excluded. Subjects with other chronic or acute clinical disorders or with a history of respiratory tract infections within four weeks of the study initiation were also excluded.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Active AIT group
Injection immunotherapy with Purethal Mites were administered as perennial therapy using the following regimen of injections: 1 dose- 0.1 ml, 2 doses - 0.2 ml, 3 doses - 0.5 ml every week, and 0.5 ml every four weeks during 24 months. monitoring of allergen specific IgE monitoring of allergen specific IgG4 |
perennial allergren specific immunotherapy during 24 months
measurement the serum specific IgE at the start and at the end of trial
measurement the serum specific IgG4 at the start and at the end of trial
|
Placebo Comparator: non-active, placebo treatment
symptomatic treatment with concomitant use of placebo injection monitoring of allergen specific IgE monitoring of allergen specific IgG4
|
measurement the serum specific IgE at the start and at the end of trial
measurement the serum specific IgG4 at the start and at the end of trial
perrenial injection wich were administered in same protocol as Purethal
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The primary endpoint was the change from baseline in the mean AAdSS score difference in comparison to placebo.
Time Frame: baseline and 24 months
|
Symptoms and medication score were presented as the average adjusted symptom score (AAdSS): score result with standard deviation
|
baseline and 24 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Patients' quality of life was evaluated with the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) score
Time Frame: baseline, after 12 months and 24 months of study
|
fill the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) - score result
|
baseline, after 12 months and 24 months of study
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The serum-specific IgE, IgG and IgG4 levels to HDM (D. pteronyssinus, D. farinae) and to Der p1 and Der p2 were determined
Time Frame: baseline and 24 months
|
ELISA test results in IU/L
|
baseline and 24 months
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- HAB605060182
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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