Clinical Trial Details
— Status: Suspended
Administrative data
NCT number |
NCT05795452 |
Other study ID # |
8191 |
Secondary ID |
5R01ES032296-02 |
Status |
Suspended |
Phase |
|
First received |
|
Last updated |
|
Start date |
February 20, 2022 |
Est. completion date |
May 2026 |
Study information
Verified date |
August 2023 |
Source |
Columbia University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
This study aims to examine the cognitive and neural pathways underlying the joint impact of
chemical and social exposures on two aspects of cognitive function: cognitive control and
reward processing. The investigators will use high resolution, multi-band resting state and
task functional magnetic resonance imaging (fMRI) as well as neuromelanin stain MRI to
identify pathways through which exposure to a mixture of prenatal chemical and early life
social exposures alters brain function and behavior. Specifically, the investigators will
leverage extant prenatal exposure data (N=550) from the Columbia Center for Children's
Environmental Health (CCCEH) Mothers and Newborns (MN) birth cohort and study symptoms and
brain function in adolescence.
Description:
Adolescence is a period of high risk for the emergence of psychiatric issues, particularly
attention problems, substance abuse, and psychotic experiences. Risk for these problems
likely originates in the prenatal period when the brain undergoes significant rapid change,
making this a particularly vulnerable time for alterations in brain development. Few studies
have examined risk from prenatal exposure to neurotoxicants that emerge in adolescence and
the biological pathways that underlie these associations. Emerging findings suggest that
prenatal exposure to environmental chemicals (e.g. environmental tobacco smoke (ETS), air
pollutants such as polycyclic aromatic hydrocarbons (PAH)) is associated with behavioral
symptoms of attentiondeficit/ hyperactivity disorder (ADHD), substance use disorders (SUD),
and psychotic disorders (PD). These symptoms often emerge across adolescence, and frequently
co-occur, suggesting shared underlying causes in the brain. Prenatal chemical exposures often
co-occur with each other and with social exposures, such as early life stress (ELS) that are
also associated with elevated behavioral symptoms. The joint contributions of these chemical
and social exposures to these behavioral symptoms are understudied, as are the cognitive and
neural pathways linking exposure to behavior.