An interventional study of Whizz spacer system and AeroChamber Plus® Flow-Vu® in Asthma Childhood, Asthma and Inhalation Spacers, sponsored by Luxembourg Institute of Health. Recruiting at 2 sites in 2 countries. Open to participants aged 5 Years to 16 Years. Per ClinicalTrials.gov, last updated 2026-11-10.
Sponsored by Luxembourg Institute of Health · Not applicable, Interventional, and Treatment
Asthma is one of the most common chronic diseases in children, and treatment success often depends on proper inhaler use and consistent medication adherence. Exposure to allergens and pollutants can also impact treatment response and asthma control. Moreover, there is a growing need for non-invasive biomarkers to support better diagnosis and personalized care. The goal of this clinical trial is to investigate if a new digital inhaler can improve inhalation technique and treatment adherence in children aged 5 to 16 years old, with partly controlled or uncontrolled asthma requiring treatment with inhaled corticosteroids. The main questions it aims to answer are:
Researchers will compare adherence to inhaled corticosteroid therapy between children using a new digital inhaler (Whizz spacer) and those using a standard, non-digital inhaler (AeroChamber Plus® Flow-Vu®) to see if the digital inhaler improves treatment administration and asthma control. They will quantify inflammatory markers in biological samples from asthmatic children and children without respiratory disease, to find biomarkers linked to disease and treatment response.
Participants will:
4,841 studies on the registry are indexed under Asthma; 600 are open to participants now.
This study's planned enrollment of 208 is above the median of 78 across 3,341 interventional studies indexed under Asthma.
Browse Asthma studies →Luxembourg Institute of Health is the lead sponsor of 28 studies on the registry; 12 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Asthmatic children use AeroChamber Plus® Flow-Vu® to inhale their corticosteroid containing medication for 12 weeks. This inhaler is standard and does not have light indicators to monitor treatment administration.
Device: AeroChamber Plus® Flow-Vu®
Asthmatic children use Whizz spacer to inhale their corticosteroid containing medication for 12 weeks. This inhaler has inhalation flow rate monitor with light indicators and is linked to a mobile application, to monitor treatment adherence and administration.
Device: Whizz spacer system
Non-asthmatic children, male or female, aged 5-16 years old, who have a blood test foreseen in their medical routine follow up for a non-respiratory disease, are recruited for a single visit at baseline.
Whizz spacer is a new digital valved holding chamber that is intended to administer aerosolized medication from the metered dose inhaler to the patient. It allows monitoring of treatment administration through light indicators and a mobile application.
AeroChamber Plus® Flow-Vu® is a standard valved holding chamber used to administer aerosolized medication from the metered dose inhaler to the patient.
Measurement of inhaled corticosteroid therapy adherence and comparison between the two spacers
Adherence rate will be measured by the entries in the study booklet as well as weighing the medication canisters at baseline, 6 weeks and at 12 weeks. Researchers expect to determine if light indicators and digital reminders on the Whizz spacer led to increased adherence to treatment and thus to a better clinical outcome in asthmatic children, as compared to a standard spacer.
Time frame: From enrolment to the end of the intervention at 12 weeks
Assessment of asthma control
Asthma control will be assessed by clinical evaluation, objective lung function tests and patient questionnaires. Researchers want to compare asthma control in children using the Whizz spacer and the standard spacer.
Time frame: At baseline and at the end of the intervention (12 weeks)
Quantification of inflammatory markers and deep immunophenotyping of circulating immune cells to identify non-invasive biomarkers and immune signatures
Inflammatory markers will be quantified in biological samples obtained from asthmatic children. Researchers expect to determine biomarkers and immune signatures associated with response to inhaled corticosteroid treatment and to different asthma endotypes. These biomarkers could be used for asthma diagnosis and to predict treatment response and asthma exacerbation.
Time frame: At baseline and at the end of the intervention (12 weeks)
Assessment of patients' environmental exposure
Allergens will be analyzed in the dust collected during 2 weeks in the children's bedroom and pollutants will be identified in the children's hair. Researchers want to describe factors of environmental exposure which are linked to a poor response to treatment, immune imbalance and risk of asthma exacerbations.
Time frame: At baseline
Monitoring physical activity using accelerometer bracelet
Physical activity will be monitored for one week, at baseline and at the end of the intervention, using an accelerometer bracelet. Researchers expect to follow the evolution of physical activity, as better asthma control will most likely translate into more physical activity.
Time frame: At baseline and at the end of the intervention (12 weeks)
Started Jan 2026 (actual). Primary completion is estimated for Aug 2027, 19 months after the start.
Of 599 non-industry interventional studies with no phase under Asthma, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 50. This study's planned 19 months is below that.
Counting every sponsor, half of 649 studies reached it within 23 months; a quarter within 10 and three quarters within 48.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Luxembourg Institute of Health