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Intranasal Oxytocin for Patients With Autism Spectrum Disorder: A Comprehensive Meta-Analysis of Preclinical and Clinical Studies

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Abstract

The neuropeptide oxytocin (OXT) has been identified as a potential therapeutic intervention for ASD due to its involvement in social bonding and affiliative behaviors. The present study aimed to assess the effectiveness and safety of intranasal administration of OXT in preclinical and clinical investigations related to ASD. The random-effects meta-analysis method evaluated the combined effect sizes, heterogeneity, and publication bias. Additionally, subgroup analyses were conducted to investigate potential moderators. We confirmed 54 preclinical, animal model, and clinical trials on 2593 cases with ASD through systematic search in PubMed, Web of Science, CNKI, Scopus, and Cochrane library databases from 1980 to 2023. The least-squares mean change of ABC-mSW was significantly lower in the OXT group than in Placebo (SMD, −1.45; 95% CI, −2.24, −0.66; P = 0.0003; I2 = 93%). The analysis showed significantly low OXT plasma concentration after intranasal OXT compared with placebo (SMD, 0.94; 95% CI, 0.48, 1.40; P < 0.0001; I2 = 82%). Our analysis showed only CGI improvement was significantly seen in patients with ASD receiving intranasal OXT compared with placebo (SMD, 0.07; 95% CI, 0.00, 0.14; P = 0.04; I2 = 0%). The meta-analysis suggests that the administration of intranasal OXT may have a positive impact on the behavior of individuals with ASD, particularly in terms of enhancing social and communicative abilities. Nevertheless, turning preclinical research discoveries into clinical applications poses a significant hurdle. Additional research is necessary to ascertain the most effective dose, delivery techniques, and long-term consequences to optimize the treatment efficacy and safety for individuals with ASD. Future research endeavors should aim to investigate the heterogeneity of ASD and the variability in responsiveness to interventions involving intranasal OXT.

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Acknowledgements

The authors would like to thank all participants of the research.

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FR and NHQ developed the concept, conducted the data analysis, wrote, and revised the first draft of the manuscript. TK and FK developed the concept, contributed to the draft review, editing, and validation. KD, AT, and KEI developed the concept participated in language editing.

Corresponding author

Correspondence to Kenesh Dzhusupov.

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The article is comprehensive in its consideration of ethical concepts. The research’s goals and methodology were explained to the participants. Participants were also told that their information would be kept private, that they would be allowed to withdraw from the study at any time, and that they would be given access to the study’s findings if they so choose. The ethics committee gave the study the all-clear.

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The authors declare no competing interests.

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Rahim, F., Karlygash, T., Qasim, N.H. et al. Intranasal Oxytocin for Patients With Autism Spectrum Disorder: A Comprehensive Meta-Analysis of Preclinical and Clinical Studies. Rev J Autism Dev Disord (2024). https://doi.org/10.1007/s40489-024-00428-3

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  • DOI: https://doi.org/10.1007/s40489-024-00428-3

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