Asthma attacks in children often seem to arrive from nowhere, but the warning signs are usually there — in a cough at 3 a.m., a wheeze a parent half-hears through a bedroom door. A new study led from Birmingham Women’s and Children’s Hospital is testing whether a small bedside device, listening while a child sleeps, can hear those signs earlier and more reliably than any human ear.
How the CHAMP Study Works
The Childhood Home Asthma Monitoring Study (CHAMP) will follow 50 children and their families over two years. Each home receives a table-top device, roughly the size of a smart speaker, developed by Albus Health. Using sensors and a microphone, it measures breathing and heart rate by analysing coughs, wheezes and other sounds during sleep, while also tracking environmental factors such as humidity and air pollution.
The £1.6 million study, funded by the National Institute for Health and Care Research, brings together partners including Asthma + Lung UK, Imperial College London and the Royal Brompton Hospital. Chief investigator Dr Prasad Nagakumar describes the aim plainly in the hospital’s account: to build algorithms and clinical tools for detecting attacks early, capturing warning signs ‘before patients or those giving care perceive them’.
Why Predicting Asthma Attacks Matters in Childhood
Asthma is one of the most common chronic conditions of childhood: around one in eleven children in the UK has it, and it is a leading cause of children’s hospital admissions. Attacks are frightening, occasionally fatal, and frequently preceded by a period of deteriorating control that nobody quite registers in time.
A passive home monitor changes the arithmetic of that risk. Instead of relying on a parent noticing a pattern across broken nights, the device collects the pattern automatically and continuously. As the hospital’s description of the study explains, families in the trial will be guided through using the device over the coming months while the algorithms learn what a particular child’s normal breathing sounds like — essential, because asthma is personal, and so is its soundtrack. The work sits within a wider shift towards watching children’s health in everyday settings, from how schools are rethinking the school day around children’s wellbeing to home-based monitoring of long-term conditions.
What Success Would Look Like
If the device proves it can flag deterioration days rather than hours ahead, the clinical response becomes calmer and cheaper: a prompt review, an adjusted inhaler plan, perhaps a short course of treatment at home instead of an ambulance and a ward bed. For families, the prize is simpler — sleep that is not spent half-listening for trouble.
There are real hurdles before that future arrives. Algorithms must prove themselves across different homes, ages and severities; false alarms could exhaust parents rather than reassure them; and any system listening in children’s bedrooms must meet the highest standards of privacy. CHAMP is designed as the evidence-gathering step that will show whether the idea survives contact with real family life.
Asthma care for children has been waiting for a tool that works where attacks actually begin: at home, at night, quietly. CHAMP will not deliver that tool by itself, but it is testing the most promising candidate yet — a listener that never sleeps, so that parents finally can.
