The SOFIA Study: Negative Multi-center Study of Low Dose Fluoxetine on Repetitive Behaviors in Children and Adolescents with Autistic Disorder
- PMID: 31267292
- DOI: 10.1007/s10803-019-04120-y
The SOFIA Study: Negative Multi-center Study of Low Dose Fluoxetine on Repetitive Behaviors in Children and Adolescents with Autistic Disorder
Abstract
Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) that reduces obsessive-compulsive symptoms. There is limited evidence supporting its efficacy for repetitive behaviors (RRBs) in autistic spectrum disorder (ASD). We conducted a randomized controlled trial (RCT) of fluoxetine in 158 individuals with ASD (5-17 years). Following 14 treatment weeks (mean dose 11.8 mg/day), no significant differences were noted on the Children's Yale-Brown Obsessive Compulsive Scale; the proportion of responders was similar (fluoxetine: 36%; placebo: 41%). There were similar rates of AEs (e.g., insomnia, diarrhea, vomiting); high rates of activation were reported in both groups (fluoxetine: 42%; placebo: 45%). Overly cautious dosing/duration may have prevented attainment of a therapeutic level. Results are consistent with other SSRI RCTs treating RRBs in ASD.Trial Registration: clinicaltrials.gov Identifier: NCT00515320.
Keywords: Autism spectrum disorder; Repetitive behavior; Selective seretonin reuptake inhibitor.
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