AIR-NET- Testing anti-inflammatories for the treatment of bronchiectasis
Bronchiectasis is a long-term chest condition where the airways widen and collect mucus, causing swelling and regular chest infections. The AIR-NET trial is testing whether three medicines already used for other health issues can help reduce inflammation in the lungs. These medicines are disulfiram, dipyridamole, and doxycycline. Participants will be placed into a group receiving one of these medicines or a group continuing with standard care alone. The research team will track participants' health with regular blood tests, sputum samples, and check-ups to see if the treatments are safe and helpful. To join, you must be 18 or older, have bronchiectasis confirmed by a CT scan, and cough up phlegm daily. You cannot take part if your condition is caused by cystic fibrosis or if you have had a recent chest infection. The goal is to discover new, effective ways to protect patients' lungs.
At a glance
What is this study about?
Bronchiectasis is a chronic condition where the airways of the lungs become widened and scarred. This makes it difficult to clear mucus, creating an environment where bacteria can grow and cause swelling and irritation. Over time, this constant inflammation can slowly damage lung tissue and make breathing more difficult. Currently, people manage symptoms with physiotherapy and antibiotics, but there are few treatments specifically designed to stop the underlying inflammation.
Developing entirely new medicines from scratch can take over a decade. To speed up the search for helpful therapies, the AIR-NET trial is looking at 'repurposing'. This means taking medicines that are already proven safe and licensed for other health conditions and testing whether their anti-inflammatory effects can also help people with bronchiectasis. The three drugs being tested are disulfiram, dipyridamole, and doxycycline.
In this trial, doctors are using a simple bedside sputum test called NEATstik to find people who have active swelling in their airways. By matching the right treatments to people with active inflammation, the researchers hope to discover whether one or more of these medicines can reduce flare-ups, soothe airway swelling, and improve daily life.
The study is being led by medical experts at the University of Dundee and funded by the medical charity LifeArc. Patient safety is closely tracked throughout the study by independent review panels after every small group of participants completes treatment.
Key takeaways
- Tests three existing medicines to see if they reduce lung inflammation in bronchiectasis.
- Led by the University of Dundee and open to adults aged 18 to 90.
- Requires a CT-confirmed diagnosis and daily phlegm production.
- Participants will be closely monitored with safety checks and blood tests.
- Taking part is completely voluntary and you can withdraw at any time.
Who may be eligible?
You may be eligible to take part if you are between 18 and 90 years old and have bronchiectasis confirmed by a CT scan in at least one part of your lungs. You also need to produce phlegm every day and have active lung inflammation shown by a simple phlegm test at your clinic visit.
You will not be able to join if your bronchiectasis is caused by cystic fibrosis, or if your main diagnosis is asthma or chronic obstructive pulmonary disease (COPD). People who are pregnant, breastfeeding, or taking part in certain other medication trials are also excluded.
To ensure your chest is in a stable condition when you start, you cannot join if you have had a chest infection, flare-up, or needed antibiotics or steroid tablets in the four weeks before screening.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- I am aged 18 or older.
- I have bronchiectasis confirmed by a CT scan.
- My bronchiectasis is not caused by cystic fibrosis.
- I cough up phlegm on a daily basis.
- I have not had a chest flare-up or taken antibiotics in the last four weeks.
- I am not pregnant or breastfeeding.
What does participation involve?
If you take part, you will be placed by chance into one of four study groups. One group will continue with their usual medical care, while the other three groups will take one of the study medicines alongside their usual care. You will attend regular clinic visits where doctors will check your vital signs, ask about your symptoms, and review any medications you take. You will also provide phlegm samples and have standard safety blood tests to check your liver, kidneys, and blood cell counts. The study is running from July 2024 to February 2027, and your clinic team will explain the exact number of visits and weeks of treatment required for your group.
Potential risks and benefits
Locations (11)
- NHS Tayside Ninewells HospitalCity onlyDundee, Scotland
- Royal Infirmary of Edinburgh at Little FranceCity onlyLothian, Scotland
- Liverpool Heart & Chest HospitalApproximateLiverpool, England
- Royal Hallamshire HospitalApproximateSheffield, England
- The Leeds Teaching Hospitals NHS TrustCity onlyLeeds, England
- Royal Devon University Healthcare NHS Foundation TrustUnverifiedExeter, England
- Royal Papworth Hospital (papworth Everard)UnverifiedCambridge, England
- Guy's and St Thomas' NHS Foundation TrustUnverifiedLondon, England
- Belfast Health and Social Care TrustUnverifiedBelfast, England
- Oxford University Hospitals NHS Foundation TrustUnverifiedOxford, England
- University Hospital Southampton NHS Foundation TrustUnverifiedSouthampton, England
Common questions
What does drug repurposing mean?
It means using a medicine that is already approved for one condition to treat a completely different illness, which saves time because the safety of the drug is already known.
Can I drink alcohol during this study?
If you are assigned to take disulfiram, you must completely avoid all alcohol during treatment and for two weeks afterwards, as mixing them can cause dangerous illness.
Will I have to stop my regular chest medicines?
No, the study treatments are given alongside standard chest care, though your doctor will review your routine medicines to make sure they do not interact.
What is the NEATstik test?
It is a quick test carried out on a sample of your phlegm to check for signs of active swelling and inflammation in your lungs.
Do I have to pay to take part in this trial?
No, taking part in UK clinical trials is free, and the study medications and tests are provided at no cost to you.
How to find out more
. Study Team
Always speak to your GP or specialist before deciding to take part in a study.
Interested in taking part?
Discussion
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