AzTrials
AzTrials

Environmental ExposureBCCEHCNCT06447974

The Barts Charity Children's Environmental Health Clinic

A study testing Exposure mitigations in people with Environmental Exposure and Health Behavior, run by Queen Mary University of London at 2 sites in United Kingdom.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The study will be based from a newly formed NHS service, the children's environmental health service. Participants will be children with a known chronic respiratory condition. Participants will undergo personal environmental exposure monitoring as well as home environmental assessments, before personalised exposure… Read more about this study

Who is it for?
Ages 4 to 17 yearsHealthy volunteers can take part
What is being tested?
Exposure mitigations
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
2 sitesUnited Kingdom
Study dates
24 Jul 2025to Jun 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 4 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Parent/Guardian able to provide written informed consent
  • Referral made by paediatric asthma team
  • Child aged 4-17 years at the time of consent to study
  • A diagnosis of a chronic respiratory condition (diagnosis by a medical professional)
  • Contactable for regular follow up by the research team
  • Reasonable level of English language
  • Ability to engage with technology and devices used in the study

Who cannot join

  • Inability to use the tools and devices in the research study
  • Inability to visit the hospital for the initial hospital visit
  • Inability to allow home environmental assessment

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Charles S Moorcroft contact

07808061892

c.moorcroft@qmul.ac.uk

Abigail Whitehouse contact

a.whitehouse@qmul.ac.uk

United Kingdom2 sites, 2 recruiting
  • Queen Mary University of London

    London, E1 2AT

    Enrolling by invitation
  • The Royal London Hospital

    London, E1

    Dr Jonathan Grigg

    Recruiting

Other trials in United Kingdom

About this study

The study will be based from a newly formed NHS service, the children's environmental health service. Participants will be children with a known chronic respiratory condition. Participants will undergo personal environmental exposure monitoring as well as home environmental assessments, before personalised exposure reports will be provided including a summary of their exposure and advising mitigation strategies based on exposure patterns and behaviours. The monitoring will be repeated after introduction of mitigation strategies. This will allow a comparison of the effectiveness of each method of mitigation.

Read the detailed description

Data will be collected from multiple sources during the study, including retrospective medical records and results, as well as data recorded as part of the study. These will include the following sources; Medical records from Royal London (including investigation results), Questionnaire responses, clinical interviews at clinic visits, new clinical investigations and home assessments.

These data will be both quantitative and qualitative. The data will be recorded on bespoke electronic databases, which will be securely stored on servers within the Bart's Health/ QMUL, More information on the collection and storage of each type of data can be found below.

Medical records from Royal London: Relevant clinical information and demographics will be extracted from the NHS electronic medical records as baseline information for the assessment in the environmental health clinic. This will be performed by members of the investigative team. Extracted information will include demographics, medical diagnoses, respiratory history, hospital visit history and clinical investigation results. Investigation results may include lung function, FeNO, blood test results, chest x-ray reports and any other relevant results from the child's medical history.

Questionnaires: Participants or their families will complete and return an Environmental Health Questionnaire which was designed for the purposes of the study. Answers to questions from the environmental health questionnaire will be in the form of multiple choice and short answer written questions. The questionnaire will be repeated throughout the participant's involvement in the clinic at designated points. The data from the questionnaires will be recorded in a digital database, will be created for the purpose of the clinic. This database will be stored securely within Barts Health / QMUL servers.

Medical Reviews: At visits in the clinic, interviews of the participants and their families will take place. This will include detailed medical and social history taking by medical sub investigators and a formal physical examination. To improve standardisation of data collected during interviews, a structured proforma will be developed, to be used while the interviews are being conducted. The data collected during these interviews will be recorded in the medical notes, as well as used to create personalised exposure reports.

Clinical investigations will be performed as part of the clinic. This will include blood eosinophils, FeNO, salivary cotinine and custom mould sensitivity. These investigations will be performed by medical members of staff during clinic visits. The results of these tests will be recorded in the medical notes, as well as in the digital database and secure in the servers based at Barts Health

Home assessments: During the period of home monitoring, participants will undergo assessments of their homes, their personal exposure to pollutants and undergo further health monitoring through the monitoring period. The home assessment will review mould and include a custom mould test comparing the child's blood IgG with a scraping from the mould in their home. The assessment of personal exposure will be performed using the Atmotube air quality monitor attached to a backpack (this is not a medical device). This monitor will be kept with the child at home, on their commutes and also at school. The portable air quality monitor measures air concentrations of particulate matter and volatile organic compounds (VOCs), humidity, temperature as well as GPS data and compares this against time. The encrypted anonymous data is then uploaded to a secure API before being stored within secure databases within the Barts health NHS servers. This database is stored securely within protected servers. No personal identifiable data or demographics is shared with Atmo or any other team otuside the clinic team.

After initial data collection and the home monitoring period, the data is collated and analysed by a medical member of the team to create a personal exposure report for each participant. This report will be provided to the participant, saved in the medical records, and used to recommend any appropriate exposure mitigation strategies. Follow up reviews will repeat the monitoring process and update the database, to compare the results before and after mitigation strategies have been introduced.

Being tested
Exposure mitigations
Keywords
asthma, Air pollution, environmental, Environmental health clinic
Medical subject headings
Health Behavior, Environmental Illness, Asthma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Exposure mitigationsBehavioural

    Behavioural interventions with an aim to reduce exposure by targeting occurrences of high exposure

Study groups in NCT06447974
Study groupRoleWhat they receive
Pre and post interventionOtherA single arm for measurement both pre and post introduction of intervention
Receives: Behavioral: Exposure mitigations

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. How effective is a specialist NHS environmental health clinic in reducing exposure to environmental contaminants in children with chronic respiratory disease, and what is the change in health outcomes.

    Measurement of the concentrations of common air contaminants (PM1, PM2.5, PM5, PM10, VOCs), the GPs location of areas of high concentration and the behaviours of the individual at times of high and low exposure. For each participant, the social and behavioural factors affecting their exposure will be measured using the environmental health questionnaire (type of accommodation, proximity of school and home to main roads, type of cooking fuel and sprays used in the home, presence or absence of damp or mould, and mode and duration of school commute.

    Measured: 3 years

Secondary outcomes (8)
  1. What is the environmental exposure of children attending the environmental health clinic?

    What is the concentration and duration of exposure of common air contaminants over a three day period - PM2.5, PM5, PM10, NO2 and CO2, in children attending the environmental health clinic?

    Measured: 3 years

  2. Are clinical tests such as salivary cotinine, exhaled carbon monoxide or blood eosinophils useful in screening for children who have a high environmental exposure to pollutants?

    Do children who have high or positive results for salivary cotinine, exhaled carbon monoxide or blood eosinophils, have a higher air pollution exposure (concentration and duration of exposure of common air contaminants over a three day period - PM2.5, PM5, PM10, NO2 and CO2)?

    Measured: 3 years

  3. At which locations and times of day are children exposed to the most air pollution?

    When and where are the highest concentrations of air pollution , when measured over a 72 hour period representative of the participants' normal day to day life.

    Measured: 3 years

  4. Does exposure to indoor and outdoor air pollution follow a repeated pattern each day?

    When concentrations of common air contaminants is measured over a three day period, do the peaks in concentration occur at similar times and locations each day?

    Measured: 3 years

  5. Which factors affect the levels of environmental exposure to pollutants?

    Comparison between air pollution exposure (concentration and frequency of exposure to common air contaminants over a three day period - PM2.5, PM5, PM10, NO2 and CO2) against social and behavioral factors assessed in the environmental health questionnaire ( type of accommodation, proximity of school and home to main roads, type of cooking fuel and sprays used in the home, and mode and duration of school commute)

    Measured: 3 years

  6. How does exposure to pollutants affect the health of children and young people with chronic respiratory disease?

    Comparison of health outcomes (attendances for medical assessment, escalation of treatment and disease control) with the level of air pollution exposure (concentration and frequency of exposure to common air contaminants over a three day period - PM2.5, PM5, PM10, NO2 and CO2)

    Measured: 3 years

  7. Which mitigation strategies are effective in reducing the effects of pollution exposure and in which patients are they efficacious?

    A comparison of air pollution exposure (concentrations of PM2.5, PM5, PM10, NO2 and CO2) before and after the implementation of mitigation strategies.

    Measured: 3 years

  8. Is an NHS environmental health clinic effective in delivering improvements in respiratory health of children with chronic respiratory disease?

    A comparison of respiratory health outcomes (including symptoms control, number of attendances for medical assessment and treatment, and use of additional medication) before being seen in the clinic and after being seen in the clinic

    Measured: 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jun 2024
  2. Study start24 Jul 2025
  3. Primary completionJun 2027 (estimated)
  4. Study completionJun 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Participants undergo personal exposure monitoring before and after the introduction of mitigation strategies.
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06447974
Sponsor's protocol ID
325076
Acronym
BCCEHC
Status last verified
Aug 2026
First submitted
24 Apr 2023
Last updated
13 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Brook RD, Rajagopalan S, Pope CA 3rd, Brook JR, Bhatnagar A, Diez-Roux AV, Holguin F, Hong Y, Luepker RV, Mittleman MA, Peters A, Siscovick D, Smith SC Jr, Whitsel L, Kaufman JD; American Heart Association Council on Epidemiology and Prevention, Council on the Kidney in Cardiovascular Disease, and Council on Nutrition, Physical Activity and Metabolism. Particulate matter air pollution and cardiovascular disease: An update to the scientific statement from the American Heart Association. Circulation. 2010 Jun 1;121(21):2331-78. doi: 10.1161/CIR.0b013e3181dbece1. Epub 2010 May 10.

    PubMed 20458016
  • Kampa M, Castanas E. Human health effects of air pollution. Environ Pollut. 2008 Jan;151(2):362-7. doi: 10.1016/j.envpol.2007.06.012. Epub 2007 Jul 23.

    PubMed 17646040
  • GBD 2016 Risk Factors Collaborators. Global, regional, and national comparative risk assessment of 84 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016. Lancet. 2017 Sep 16;390(10100):1345-1422. doi: 10.1016/S0140-6736(17)32366-8.

    PubMed 28919119
  • Sram RJ, Binkova B, Dejmek J, Bobak M. Ambient air pollution and pregnancy outcomes: a review of the literature. Environ Health Perspect. 2005 Apr;113(4):375-82. doi: 10.1289/ehp.6362.

    PubMed 15811825
  • Brugha R, Grigg J. Urban air pollution and respiratory infections. Paediatr Respir Rev. 2014 Jun;15(2):194-9. doi: 10.1016/j.prrv.2014.03.001. Epub 2014 Mar 12.

    PubMed 24704510
  • Gehring U, Wijga AH, Koppelman GH, Vonk JM, Smit HA, Brunekreef B. Air pollution and the development of asthma from birth until young adulthood. Eur Respir J. 2020 Jul 2;56(1):2000147. doi: 10.1183/13993003.00147-2020. Print 2020 Jul.

    PubMed 32299858
  • Lacasana M, Esplugues A, Ballester F. Exposure to ambient air pollution and prenatal and early childhood health effects. Eur J Epidemiol. 2005;20(2):183-99. doi: 10.1007/s10654-004-3005-9.

    PubMed 15792286
  • Li X, Huang S, Jiao A, Yang X, Yun J, Wang Y, Xue X, Chu Y, Liu F, Liu Y, Ren M, Chen X, Li N, Lu Y, Mao Z, Tian L, Xiang H. Association between ambient fine particulate matter and preterm birth or term low birth weight: An updated systematic review and meta-analysis. Environ Pollut. 2017 Aug;227:596-605. doi: 10.1016/j.envpol.2017.03.055. Epub 2017 Apr 28.

    PubMed 28457735
  • Bobak M, Leon DA. The effect of air pollution on infant mortality appears specific for respiratory causes in the postneonatal period. Epidemiology. 1999 Nov;10(6):666-70.

    PubMed 10535778
  • Cai Y, Hansell AL, Granell R, Blangiardo M, Zottoli M, Fecht D, Gulliver J, Henderson AJ, Elliott P. Prenatal, Early-Life, and Childhood Exposure to Air Pollution and Lung Function: The ALSPAC Cohort. Am J Respir Crit Care Med. 2020 Jul 1;202(1):112-123. doi: 10.1164/rccm.201902-0286OC.

    PubMed 32142356
  • Smith RB, Fecht D, Gulliver J, Beevers SD, Dajnak D, Blangiardo M, Ghosh RE, Hansell AL, Kelly FJ, Anderson HR, Toledano MB. Impact of London's road traffic air and noise pollution on birth weight: retrospective population based cohort study. BMJ. 2017 Dec 5;359:j5299. doi: 10.1136/bmj.j5299.

    PubMed 29208602
  • Taussig LM, Wright AL, Holberg CJ, Halonen M, Morgan WJ, Martinez FD. Tucson Children's Respiratory Study: 1980 to present. J Allergy Clin Immunol. 2003 Apr;111(4):661-75; quiz 676. doi: 10.1067/mai.2003.162.

    PubMed 12704342
  • Achakulwisut P, Brauer M, Hystad P, Anenberg SC. Global, national, and urban burdens of paediatric asthma incidence attributable to ambient NO2 pollution: estimates from global datasets. Lancet Planet Health. 2019 Apr;3(4):e166-e178. doi: 10.1016/S2542-5196(19)30046-4. Epub 2019 Apr 11.

    PubMed 30981709
  • Beasley R, Semprini A, Mitchell EA. Risk factors for asthma: is prevention possible? Lancet. 2015 Sep 12;386(9998):1075-85. doi: 10.1016/S0140-6736(15)00156-7.

    PubMed 26382999
  • Mukherjee M, Stoddart A, Gupta RP, Nwaru BI, Farr A, Heaven M, Fitzsimmons D, Bandyopadhyay A, Aftab C, Simpson CR, Lyons RA, Fischbacher C, Dibben C, Shields MD, Phillips CJ, Strachan DP, Davies GA, McKinstry B, Sheikh A. The epidemiology, healthcare and societal burden and costs of asthma in the UK and its member nations: analyses of standalone and linked national databases. BMC Med. 2016 Aug 29;14(1):113. doi: 10.1186/s12916-016-0657-8.

    PubMed 27568881

Questions about this trial

What is this clinical trial studying?

A study testing Exposure mitigations in people with Environmental Exposure and Health Behavior, run by Queen Mary University of London at 2 sites in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 13 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Charles S Moorcroft (07808061892, c.moorcroft@qmul.ac.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

How effective is a specialist NHS environmental health clinic in reducing exposure to environmental contaminants in children with chronic respiratory disease, and what is the change in health outcomes. (time frame: 3 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06447974, which also lists 28 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Aug 2026.

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