NCT06447974

Brief 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 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.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
13mo left

Started Jul 2025

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress43%
Jul 2025Jun 2027

First Submitted

Initial submission to the registry

April 24, 2023

Completed
1.1 years until next milestone

First Posted

Study publicly available on registry

June 7, 2024

Completed
1.1 years until next milestone

Study Start

First participant enrolled

July 24, 2025

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

August 12, 2025

Status Verified

August 1, 2025

Enrollment Period

1.9 years

First QC Date

April 24, 2023

Last Update Submit

August 7, 2025

Conditions

Keywords

asthmaAir pollutionenvironmentalEnvironmental health clinic

Outcome Measures

Primary Outcomes (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.

    3 years

Secondary Outcomes (8)

  • What is the environmental exposure of children attending the environmental health clinic?

    3 years

  • 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?

    3 years

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

    3 years

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

    3 years

  • Which factors affect the levels of environmental exposure to pollutants?

    3 years

  • +3 more secondary outcomes

Study Arms (1)

Pre and post intervention

OTHER

A single arm for measurement both pre and post introduction of intervention

Behavioral: Exposure mitigations

Interventions

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

Pre and post intervention

Eligibility Criteria

Age4 Years - 17 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Queen Mary University of London

London, E1 2AT, United Kingdom

ENROLLING BY INVITATION

The Royal London Hospital

London, E1, United Kingdom

RECRUITING

Related Publications (28)

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    PMID: 32142356BACKGROUND
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    PMID: 29208602BACKGROUND
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    PMID: 30981709BACKGROUND
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    BACKGROUND
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  • Chatzidiakou L, Krause A, Han Y, Chen W, Yan L, Popoola OAM, Kellaway M, Wu Y, Liu J, Hu M; AIRLESS team; Barratt B, Kelly FJ, Zhu T, Jones RL. Using low-cost sensor technologies and advanced computational methods to improve dose estimations in health panel studies: results of the AIRLESS project. J Expo Sci Environ Epidemiol. 2020 Nov;30(6):981-989. doi: 10.1038/s41370-020-0259-6. Epub 2020 Aug 12.

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  • Ha S, Nobles C, Kanner J, Sherman S, Cho SH, Perkins N, Williams A, Grobman W, Biggio J, Subramaniam A, Ouidir M, Chen Z, Mendola P. Air Pollution Exposure Monitoring among Pregnant Women with and without Asthma. Int J Environ Res Public Health. 2020 Jul 7;17(13):4888. doi: 10.3390/ijerph17134888.

    PMID: 32645870BACKGROUND
  • Personal interventions and risk communication on air pollution. Geneva: World Health Organization ; 2020. Licence : CC BY-NC-SA 3.0 IGO.

    BACKGROUND

MeSH Terms

Conditions

Health BehaviorEnvironmental IllnessAsthma

Condition Hierarchy (Ancestors)

BehaviorHypersensitivityImmune System DiseasesDisorders of Environmental OriginBronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, Immediate

Study Officials

  • Charles S Moorcroft, MBChB

    Queen Mary University of London

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Charles S Moorcroft

CONTACT

Abigail Whitehouse

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Masking Details
no masking
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Participants undergo personal exposure monitoring before and after the introduction of mitigation strategies.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 24, 2023

First Posted

June 7, 2024

Study Start

July 24, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

August 12, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations