Long-Acting Injectable Antipsychotic Medication Use in Youth: A Systematic Review of the Literature Along with MedWatch Safety Data and Prescriber Attitudes.
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Objectives: Long-acting injectable (LAI) antipsychotic medications are being prescribed to children and adolescents along a broad age range from 2 to 17 years old. However, there is no U.S. Food and Drug Administration (FDA) approved indication for the use of any LAI in a pediatric population. The goal of this article is to perform a systematic literature review regarding the use of LAIs in a pediatric population, to obtain pediatric LAI safety data, and to survey prescriber attitudes regarding LAI use in youth. Methods: A search for relevant articles between June 1986 and June 2021 was conducted. Safety data were obtained from FDA MedWatch postmarketing adverse event reports regarding LAI use in children and adolescents. A survey of practicing Child and Adolescent Psychiatrists in Wisconsin was done regarding the use of LAIs in youth. Results: The predominant reasons for LAI use in youth were illness severity and treatment noncompliance. Twenty-six of 30 identified studies and reports favored LAI use in youth, but were of low to very low quality. Overall, 587 FDA MedWatch reports between June 1986 and June 2021 were identified. Most adverse events occurred in modest numbers. Extrapyramidal symptoms accounted for 18% of all MedWatch reports, neuroleptic malignant syndrome accounted for 3% of all reports, and deaths accounted for 2% of all reports. The concern for safety was reflected in prescriber survey results along with a recognition that LAIs can be helpful to target severe psychiatric symptoms and address treatment noncompliance. Conclusions: No randomized controlled studies were found. Identified published studies and reports were of low to very low quality. However, it appeared reasonable that the use of LAIs in a select group of pediatric patients can be helpful to target severe psychiatric symptoms and to enhance treatment compliance.