Systematic review: Antipsychotic medication in pregnancy and neurodevelopmental outcomes in children

Objective: Antipsychotic medications are widely prescribed, including during pregnancy, and pregnant individuals worry about the potential sequelae for the child. Although antipsychotics do not seem to be teratogenic, the long-term neurodevelopmental impact of prenatal exposure remains unclear. A systematic review was conducted to determine if intrauterine antipsychotic exposure increases the risk of adverse neurodevelopmental outcomes.

Method: A systematic search was performed in MEDLINE, Cochrane, Embase, and PsycINFO for studies published before September 7, 2024. We included original studies assessing cognitive, motor, behavioral, social, and psychiatric outcomes in children prenatally exposed to antipsychotics, excluding case reports, reviews, preclinical studies, and studies without a control group. Quality and risk of bias were assessed using the Newcastle-Ottawa Scale.

Results: Of 1,349 studies identified, full text of 56 was screened, and 16 were included in the review. The number of exposed participants ranged from 11 to >15,000. In the 8 studies assessing motor development, early motor delays were observed but did not persist into later childhood. Neurodevelopmental disorders were assessed in 7 studies. Crude estimates showed greater risk in exposed children, but after adjusting for confounders, most studies found no significant risk. The mean NOS score was 7.1.

Conclusion: Transient motor delays may be associated with antipsychotic use during pregnancy, although future studies adjusting for confounding factors should clarify this risk. After adjustment for confounders, the risk of neurodevelopmental disorders in school-age children does not seem to be increased. Studies with longer follow-up time are required to further investigate the risk of neurodevelopmental disorders.