NIH Brain Development Cohorts (NBDC) Biospecimen Access (X01 Clinical Trial Not Allowed)

The Adolescent Brain Cognitive Development (ABCD) Study is the largest longitudinal study of brain development and child health collecting data from more than 11,000 children across the U.S. beginning when they are 9-10 years old and continuing for a decade. In addition to behavioral assessments, youth undergo neuroimaging and provide biospecimens, including saliva for hormone analysis, urine and hair for substance use and exposure, deciduous teeth for environmental exposure, and blood for genetic analysis and metabolic and hematologic assays. This initiative allows investigators to apply for access to biological samples from the ABCD Study. The program provides researchers with biospecimens to conduct investigations into brain development, substance use, mental health, environmental exposures, and related health outcomes in adolescents. This is an X01 mechanism that does not allow clinical trials and is specifically designed to facilitate secondary data analysis using existing ABCD Study biospecimens.