Ask to take part

Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Dr Cara Flynn
+44 (0)116 258 3692
caf26@leicester.ac.uk


Prof Chris Brightling
+44 (0)116 250 2704
ceb17@leicester.ac.uk


Study Location:

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Be Part of Research - Trial Details - Effects of blocking a messaging protein called TSLP (thymic stromal lymphopoietin) on inflammation in the airways

Effects of blocking a messaging protein called TSLP (thymic stromal lymphopoietin) on inflammation in the airways

Not Recruiting

Open to: All Genders

Age: Mixed

Medical Conditions

Chronic obstructive pulmonary disease


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


Chronic obstructive pulmonary disease (COPD) is a highly common chronic lung disease which carries a significant burden for both patients and healthcare systems. Treatment has been limited for several years. Recent studies have shown a promising new target in treating asthma – thymic stromal lymphopoietin (TSLP) is a protein released when the airways are irritated. This causes an increase in airway inflammation and therefore the symptoms of COPD. Blocking or reducing this with a medication called tezepelumab has been shown to reduce airway inflammation in asthma. Other studies have also shown reduced symptoms and exacerbations in a diverse group of asthma patients, including those who do not demonstrate a high level of allergic-type inflammation. This study will investigate the effect of this medication on the airways of people who suffer from COPD.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

29 Feb 2024 10 Jan 2025

Patients will be recruited to three sites – Copenhagen, Leicester and London. These will be people with moderate to severe COPD, on standard inhaled treatment with at least one exacerbation in the preceding twelve months. Those who are willing to be involved and fulfil screening criteria will have various baseline blood and breathing tests along with questionnaires completed. Everyone will undergo a bronchoscopy – a test where a fine, flexible camera is inserted into the lungs and samples and biopsies can be taken. 50% of people will be randomised to receive the medication and 50% will receive a placebo. Each person and the team looking after them directly will not know which one they are receiving. They will receive this 4 weekly for 5 doses total, then undergo a repeat bronchoscopy and other tests. The total study time will be approximately 22 weeks. If this trial is successful it may contribute to evidence allowing us to use tezepelumab to treat COPD in future.

Participants will be required to undergo two research bronchoscopies. This is generally a safe procedure but rarely serious complications can occur - including bleeding, collapsed lung, cardiac arrhythmias and very rarely death. This is a key part of the trial as it is the way to obtain the samples which will be studied to look for the effect of the IMP. The risks and benefits will be fully discussed with patients before the procedure in a formal consent process. To minimise risks only patients with FEV1 >30% predicted and >1L will be recruited. All bronchoscopies will be performed in a fully equipped bronchoscopy suite with emergency facilities, by experienced practitioners. A follow-up phone call will be made within 3 days of each bronchoscopy to ensure no adverse events. Some people find bronchoscopy very uncomfortable and can be left with a hoarse voice afterwards. It is also not uncommon to have a temperature in the 24-48 hours after the procedure. Detailed information about the procedure will be available in advance and discussed thoroughly.


People aged over 40 years old with moderate to severe COPD

You can take part if:



You may not be able to take part if:


1. History of unstable or severe cardiac, hepatic, thyrotoxicosis, concomitant respiratory or renal disease, or other medically significant illness, which the investigator believes, would be a contraindication to study participation. 2. Significant concomitant respiratory disease such as cystic fibrosis, pulmonary fibrosis, aspergillosis, active or untreated primary tuberculosis. 3. Any significant abnormal laboratory results at screening, which in the opinion of the investigator, may put the subject at risk to take part in the study, 4. Current diagnosis of Asthma 5. Previous Lung volume reduction surgery for the indication of COPD 6. Any use of home oxygen therapy 7. Patients with clinically significant laboratory abnormalities (not associated with the study indication) at screening 8. Recent acute exacerbation event requiring oral corticosteroids or antibiotics (any dose for more than 3 days) or respiratory tract infection 4 weeks prior to screening  9. History of active Malignancy in any organ system (diagnosis within last 12 months or ongoing active cancer treatment such as chemotherapy, radiotherapy, or immunotherapy. 10. History of treatment with biologics within four months or five half-lives (whichever is longer) prior to screening. 11. History of anaphylaxis to any biologic therapy or sensitivity of any component of IMP formulation   12. Have been involved in another medicinal trial (CTIMP) within the past 28 days 13. Women who are pregnant, lactating or intend to become pregnant during the study period  14. Planned surgical procedures requiring general anaesthesia or in-patient status for > 1 day during the conduct of the study.   15. Receipt of any live or attenuated vaccines within 15 days prior to screening  16. Patients whose treatment is considered palliative (life expectancy < 6 months). 17. History of chronic alcohol or drug abuse within 12 months prior to screening  18. Receipt of immunoglobulin or blood products within 30 days prior to screening 19. Use of immunosuppressive medication (e.g., methotrexate, troleandomycin, oral gold, cyclosporine, azathioprine, intramuscular long-acting depot corticosteroid) within 3 months prior to screening.  20. History of any known primary immunodeficiency disorder excluding asymptomatic selective immunoglobulin A or IgG subclass deficiency.   21. Subject taking antiretroviral medications, as determined by medical history   22. History of human immunodeficiency virus (HIV) or hepatitis B or C.


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Glenfield Hospital
    Groby Road
    Leicester
    LE3 9QP
  • Kings College Hospital
    Denmark Hill
    London
    SE5 9RS
  • Bispebjerg Hospital
    Bispebjerg Bakke 23
    Copenhagen
    2400 København

The trial medication may cause some adverse side effects, although in previous studies it has been shown to have a favourable side effect profile. Any adverse events will be managed accordingly.
The study involves 8 visits to the research unit which may cause inconvenience. Participants will receive reimbursement and travel expenses. There are also two phone calls post-bronchoscopy visits. These will be scheduled to occur at a convenient time if possible.


The study is sponsored by University of Leicester and funded by AstraZeneca.




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Read full details for Trial ID: ISRCTN14181775

Or CPMS 60939

Last updated 12 May 2025

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