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NCT03718520

The Influence of in Utero Cannabis Exposure on Neonatal Brain Morphology and Structural Connectivity

Completed Last updated 27 October 2021
What this trial tests

trial testing no intervention, this is a purely observational study in Cannabis Use Disorder in 168 participants. Completed in 31 March 2020.

Timeline
7 November 2018
Primary endpoint
31 March 2020
31 March 2020

Quick facts

Lead sponsorUniversity of Colorado, Denver
StatusCompleted
Study typeOBSERVATIONAL
Enrollment168
Start date7 November 2018
Primary completion31 March 2020
Estimated completion31 March 2020
Sites2 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

University of Colorado, Denver

Who can join

18 and older, female only, with Cannabis Use Disorder or PREG1. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Cannabis is the most commonly used drug by women during pregnancy with an estimated prevalence of use in Colorado of 5.7%. THC and its metabolites freely cross the placenta and blood-brain barrier to bind with cannabinoid receptors, disrupting the endogenous cannabinoid signaling system during a critical period of development of cortical circuitry structure and function. The density of cannabinoid receptors in the developing brain is high, especially in the limbic areas and prefrontal lobes. Research in animal models suggests synaptic plasticity in the prefrontal lobes as well the amygdala and hippocampus are impacted by the prenatal cannabis exposure; regions associated with both cognitive and emotional control, thus influencing long-term deficiencies in attention and impulsivity. This pilot study will collect preliminary data on the structural impact of in utero cannabis exposure on region-specific morphology and structural connectivity of white matter tracts that connect to the prefrontal lobes and the limbic regions shortly after birth, before confounding by the postnatal environment becomes a major influence.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

  1. <i>In utero</i> chronic cannabis exposure is associated with lower total brain volume in the first month of postnatal life.
    Crume TL, Kim P, Shen X, Iisa E, et al · · 2025 · cited 1× · PMID 40700630 · DOI 10.1080/00952990.2025.2506112

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Other recruiting trials for Cannabis Use Disorder

Currently open trials in the same condition.

Other University of Colorado, Denver trials

Trials by the same sponsor.

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