NCT06913751

Brief Summary

  1. 1.Air quality is a growing concern for health and environment and is one of the modifiable environmental factors. There is growing evidence that a complex interplay of genetic and epigenetic factors like environmental factors, underlies the pathophysiology of ASD. Behavioural issues, sleep habits and cognitive abilities play a significant role in the quality of life of both the affected children and their caregivers
  2. 2.Few studies have shown that there is an increased incidence of ASD in children born to mothers exposed to higher levels of air pollution in pregnancy. However, no studies on the effect of air quality on the severity of autism. There are limited studies on the association of air pollution with childhood behaviour and cognitive abilities, especially in neurodevelopmental disorders. No evidence on the impact of air quality on the effectiveness of therapy/standard of care in children with autism, as well as on their sleep habits and behaviour.

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
66

participants targeted

Target at P25-P50 for all trials

Timeline
4mo left

Started Apr 2025

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress78%
Apr 2025Sep 2026

First Submitted

Initial submission to the registry

March 31, 2025

Completed
1 day until next milestone

Study Start

First participant enrolled

April 1, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 6, 2025

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Expected
Last Updated

April 6, 2025

Status Verified

March 1, 2025

Enrollment Period

11 months

First QC Date

March 31, 2025

Last Update Submit

March 31, 2025

Conditions

Keywords

autism spectrum disorderAir pollution

Outcome Measures

Primary Outcomes (1)

  • To compare the effectiveness of standard of care therapy, in terms of change in CARS score after 6 months follow up, in two groups of children with autism spectrum disorder, during months with high air pollution and low air pollution, based on AQI

    Difference in the change in mean CARS score between the two groups at 6 months follow up

    6 months

Secondary Outcomes (6)

  • To compare the effectiveness of standard of care therapy, in terms of change in CARS score after 12 months follow up, in two groups of children with autism spectrum disorder, during months with high air pollution and low air pollution, based on AQI

    12 months

  • To compare the impact on cognitive ability, as measured in terms of change in DQ/SQ/IQ after 6 months follow up, in two groups of children with autism spectrum disorder, during months with high air pollution and low air pollution, based on AQI

    12 months

  • To compare the impact on sleep habits, as measured in terms of change in CSHQ score after 6 months follow up, in two groups of children with autism spectrum disorder, during months with high air pollution and low air pollution, based on AQI

    12 months

  • To compare the impact on behavioral profile, as measured in terms of change in CBCL score after 6 months follow up, in two groups of children with autism spectrum disorder, during months with high air pollution and low air pollution, based on AQI

    12 months

  • To assess the corelation between the air quality parameters (PM2.5, PM10) and the severity of autism spectrum disorder/sleep issues/behavioural issues and cognition at the end of 6 months follow up

    12 months

  • +1 more secondary outcomes

Study Arms (2)

Children with autism spectrum disorder followed up during the months with lower air pollution

* First group of children with autism spectrum disorder who meet the inclusion and exclusion criteria will be enrolled in the study after due informed consent in the month of April 2025. * The children will be followed up for a period of 6 months till September 2025 when they will be evaluated for primary outcome- CARS-2 score and other secondary outcomes-behavioural issues/sleep issues/cognitive ability. * They will further be followed up for the next 6 months till March 2026 to be evaluated for secondary outcomes.

Behavioral: standard of care

Children with autism spectrum disorder followed up during the months with higher air pollution

* Second group of children with autism spectrum disorder who meet the inclusion and exclusion criteria will be enrolled in the study after due informed consent in the month of October 2025. * The children will be followed up for a period of 6 months till March 2026 when they will be evaluated for primary outcome- CARS-2 score and other secondary outcomes-behavioural issues/sleep issues/cognitive ability. * They will further be followed up for the next 6 months till September 2026 to be evaluated for secondary outcomes.

Behavioral: standard of care

Interventions

standard of care therapy with behavioural and occupational therapy along with other pharmacological therapy as required

Children with autism spectrum disorder followed up during the months with higher air pollutionChildren with autism spectrum disorder followed up during the months with lower air pollution

Eligibility Criteria

Age3 Years - 12 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Children with ASD based on DSM -V criteria between 3- 12 years of age attending the Pediatric Neurology OPD and Autism clinic, in Department of Pediatrics, at AIIMS, New Delhi

You may not qualify if:

  • Other known secondary causes of ASD like Fragile-X Syndrome, Down Syndrome, Tuberous sclerosis, etc.
  • ASD with known metabolic disorders
  • ASD with drug refractory epilepsy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Biospecimen

Retention: SAMPLES WITH DNA

Three millilitres of blood sample will be collected from every 5th patient from each group, at the end of 6 months follow up,. Samples will be collected only from those patients who provide consent for the same. A total of 10 samples, 5 from each group will be collected and analysed.

MeSH Terms

Conditions

Autism Spectrum Disorder

Interventions

Standard of Care

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Quality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • sheffali gulati, MD

    All India Institute of Medical Sciences, New Delhi, Delhi 110029

    PRINCIPAL INVESTIGATOR

Central Study Contacts

sheffali gulati, MD

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 31, 2025

First Posted

April 6, 2025

Study Start

April 1, 2025

Primary Completion

March 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

April 6, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share