Response of the Airway in Sinusitis and Asthma (RAISe)
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|ClinicalTrials.gov Identifier: NCT03011632|
Recruitment Status : Completed
First Posted : January 5, 2017
Last Update Posted : August 13, 2019
|Condition or disease||Intervention/treatment||Phase|
|Sinusitis Asthma||Drug: Mometasone Nasal Drug: placebo mometasone||Phase 4|
Persistence of CRS and asthma require multiple interconnected feedback and feed-forward circuits between ILCs and epithelial cells. It seems that type 2 ILCs (ILC2) are the most important accelerators of type II immune response that prepare cytokine microenvironment for Th2 cells chronic activation. What decide on ILC2 accumulation - this is an urgent question. The aim of the proposed project is to examine the role of the innate immune response of airways in children suffering from chronic rhinosinusitis and asthma.
The project is intended to be realised in two phases. In the first stage, a case control study will be performed. In the second phase, double-blind, placebo controlled study will be conducted. In the first phase 3 groups of children will be compare: i) a group of children suffering from CRS (fulfilling the EPOS criteria) and asthma (fulfilling the API criteria) (CRS+/asthma+, n=90), ii) a group of children suffering from CRS (fulfilling the EPOS criteria) but without asthma symptoms (negative API criteria) (CRS+/asthma-, n=30) and iii) a group of children without symptoms of CRS (negative EPOS criteria) and without asthma symptoms (negative API criteria) (CRS-/asthma-, n=30). In the second phase the effect of intranasal glucocorticosteroids will be assessed. The following research methods will be used: SN-5 and cACT questionnaires, skin prick test, spirometry, measurement of NO in exhaled breath, taste perception test, eosinophil morphology assessment, ratio: glucose concentration in nasal secretion/serum glucose level, concentration of specific immunoglobulin E, total IgG and IgA, the proportion of ILC2 cells and regulatory cells in the peripheral blood. Endoscopic examination of the upper airways will be performed and samples of the mucosa will be taken. The mucosal examination will be as follows: i) PCR examination for the detection of the presence of viral and bacterial genetic material, ii) measurement of the expression of the various mRNA types, iii) measurement of the expression of mRNA for the Epithelial-Mesenchymal Transition (EMT) genes and iv) percentage of ILC 1, 2 and 3 cells and regulatory cells.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||150 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Double (Investigator, Outcomes Assessor)|
|Official Title:||The Role of Nonspecific Immune Response of the Airway Mucosa in Children With Chronic Rhinosinusitis and Asthma|
|Actual Study Start Date :||January 2017|
|Actual Primary Completion Date :||August 2019|
|Actual Study Completion Date :||August 2019|
Experimental: mometasone nasal
a group of children who will receive a nasal mometasone in an atomiser for three months (one application, once per day) and supplemental 3ml 0.9% sodium chloride (NaCl) solution in a nasal nebuliser once a day for 3 months,
Drug: Mometasone Nasal
a group of children who will receive a nasal mometasone in an atomiser for three months (one application, once per day) and supplemental 3ml 0.9% Sodium chloride (NaCl) solution in a nasal nebuliser once a day for 3 months
Other Name: NasometinTM, Sandoz
Placebo Comparator: placebo mometasone
a group of children without immunoglobulin E (IgE) - dependent hypersensitivity who will receive nasal mometasone placebo in an atomiser for three months (one application, once per day) and supplemental 3ml 0.9% NaCl solution in a nasal nebuliser once a day for 3 months,
Drug: placebo mometasone
a group of children without IgE-dependent hypersensitivity who will receive nasal mometasone placebo in an atomiser for three months (one application, once per day) and supplemental 3ml 0.9% NaCl solution in a nasal nebuliser once a day for 3 months,
Other Name: placebo
- Asthma Control Test for children (cACT™) [ Time Frame: 12 months ]Childhood Asthma Control Test (cACT™), will be used, which has been recommended by the Global Initiative for Asthma (GINA) Report
- SN-5 [ Time Frame: 12 months ]validated questionnaire for the assessment for quality of life in children with CRS (5 symptom-cluster items covering the domains of sinus infection, nasal obstruction, allergy symptoms, emotional distress, and activity limitations)
- Spirometry [ Time Frame: 12 months ]Respiratory function tests will be performed according to the American Thoracic Society (ATS) standards. The best result of three spirometric maneuvers will be selected for the analysis of obstructive disorders and the level of disease severity according to the standards of the Polish Society of Lung Diseases. The analysis will include FEV1% (A/N% - the percent of the measured to predicted value).
- Nasal fraction of exhaled nitric oxide (nFeNO) Measurements [ Time Frame: 12 months ]Measurements of nasal fraction of exhaled nitric oxide (nFeNO) will be performed using an electrochemical analyzer (ExpAir) according to the manufacturer's instructions. The detection limit ranged from 1 ppb to 6000 ppb.
- Glucose concentration [ Time Frame: 12 months ]Glucose concentration in serum and in nasal secretions will be assessed using glucose oxidase sticks (Roche, Lewes, East Sussex, U.K.). Nasal glucose concentration will analyzed in the context of blood glucose level using following ratio: nasal glucose level/blood glucose level.
- Immunophenotyping [ Time Frame: 12 months ]Mucosa - The nasal mucosa sample will be gently processed (mechanical dissociation, mild enzyme digestion) to produce a single cell suspension. It will be further fixed and stained with specific cocktail of fluorescent dye-stained antibody and then cell identification will be performed by flow cytometry. The relative count of all cell subsets will be determined. All procedures will be performed in buffers containing brefeldin and/or monesin to prevent dislocation of proteins of interest.
- quantitative polymerase chain reaction (qPCR) [ Time Frame: 12 months ]
Total RNA will be isolated from mucosa samples and then reverse-transcribed with e.g. Thermo Scientific Maxima Reverse Transcriptase. qPCR reaction will be performed using house-designed primer sets. Relative expression of genes of interest (involved in innate response) will be analyzed against selected house-keeping gene transcripts.
Manufacturer recommended procedure will be used to quantify Human Epithelial to Mesenchymal Transition gene panel and Multiplex Real-Time PCR for pathogen genes
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03011632
|Department of Internal Medicine, Asthma and Allergy, Barlicki University Hospital, Medical University of Lodz, Lodz, Poland|
|Lodz, Poland, 90-153|
|Principal Investigator:||Pawel Majak, MD, PhD||Department of Internal Medicine, Asthma and Alergology, Barlicki Hospital,|