Cited by 98Anxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesTreatment of Major DepressionChild and Adolescent Psychosocial and Emotional Development

The Impact of Antidepressant Dose and Class on Treatment Response in Pediatric Anxiety Disorders: A Meta-Analysis

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Strawn, Jeffrey R., Mills, Jeffrey A., Sauley, Beau A., Welge, Jeffrey A.·2018·Journal of the American Academy of Child & Adolescent Psychiatry

Abstract

Objective To determine the trajectory and magnitude of antidepressant response as well as the effect of antidepressant class and dose on symptomatic improvement in pediatric anxiety disorders.Method Weekly symptom severity data were extracted from randomized, parallel group, placebo-controlled trials of selective serotonin reuptake inhibitors (SSRIs) and selective serotonin-norepinephrine reuptake inhibitors (SNRIs) in pediatric anxiety disorders. Treatment response was modeled for the standardized change in continuous measures of anxiety using Bayesian updating. Posterior distributions for each study served as informative conjugate prior to distributions update subsequent study posteriors. Change in symptom severity was evaluated as a function of time, class and, for SSRIs, standardized dose.Results Data from 9 trials (SSRIs: n = 5; SNRIs, n = 4) evaluating 7 medications in 1,673 youth were included. In the logarithmic model of treatment response, statistically, but not clinically, significant treatment effects emerged within 2 weeks of beginning treatment (standardized medication-placebo difference = -0.054, credible interval [CI] = -0.076 to -0.032, p = .005, approximate Cohen's d ≤ 0.2) and by week 6, clinically significant differences emerged (standardized medication-placebo difference = -0.120, CI = -0.142 to -0.097, p = .001, approximate Cohen's d = 0.44). Compared to SNRIs, SSRIs resulted in significantly greater improvement by the second week of treatment (p = .0268), and this advantage remained statistically significant through week 12 (all p values <.03). Improvement occurred earlier with high-dose SSRI treatment (week 2, p = .002) compared to low-dose treatment (week 10, p = .025), but SSRI dose did not have an impact on overall response trajectory (p > .18 for weeks 1-12).Conclusions In pediatric patients with generalized, separation, and/or social anxiety disorders, antidepressant-related improvement occurred early in the course of treatment, and SSRIs were associated with more rapid and greater improvement compared to SNRIs.

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Crossref · 10.1016/j.jaac.2018.01.015

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  • Gosman et al. results must be interpreted with caution due to moderate heterogeneity between studies and moderate risk of bias in a great proportion of included studies.

    “These results must be interpreted with caution as one of the meta-analysis limitations is the moderate heterogeneity between studies and the moderate risk of bias that was found on a great proportion of the included studies.”

    From The risks versus the benefits of pharmacological intervention in social anxiety disorder in children (2025) · cites this paper as [44]

    The Results section (Selection of Studies and Study Characteristics; page not provided) says risk of bias was low across studies, contrary to the claim that a great proportion had moderate risk of bias. The Discussion acknowledges differences between studies but does not characterize their heterogeneity as moderate. (LLM, conf=0.87)

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  • Gosman et al. found small differences between the medication's efficacy and their acceptability.

    “Additionally, the authors also found small differences between the medication's efficacy and their acceptability.”

    From The risks versus the benefits of pharmacological intervention in social anxiety disorder in children (2025) · cites this paper as [44]

    The Results section (Effects of Antidepressant Class; page unavailable) reports significantly greater treatment response for SSRIs than SSNRIs, rather than small differences in efficacy. The paper does not report a comparison of acceptability across medications; its finding that medication–placebo attrition differences were under 10% concerns a different comparison. (LLM, conf=0.78)

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  • Gosman et al. meta-analysis found all medications were more effective than placebo (p < .001) for all symptom domains and diagnoses.

    “The authors found that all medications were more effective than placebo (p < .001)for all symptom domains and diagnoses.”

    From The risks versus the benefits of pharmacological intervention in social anxiety disorder in children (2025) · cites this paper as [44]

    The Results sections on treatment time course and antidepressant class report greater improvement with medication than placebo in pediatric anxiety disorders, including p<0.001 for both drug classes at week 12. They do not establish that every individual medication was more effective for every symptom domain and diagnosis; the reported significance also varies by time point. The cited paper is by Strawn et al., not Gosman et al. (Page numbers were not available in our copy.) (LLM, conf=0.87)

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  • About 50% of the ultimate response to antidepressant medications is observed within two weeks of treatment initiation, and maximum clinical effectiveness may take up to 6 to 8 weeks.

    “While about 50% of the ultimate response is observed within two weeks of treatment initiation, maximum clinical effectiveness of antidepressant medications may take up to 6 to 8 weeks [24].”

    From Psychological and Psychiatric Comorbidities in Youth with Serious Physical Illness (2022) · cites this paper as [24]

    The Discussion reports that approximately 50% of the improvement observed at week 12 occurred by week 4, not week 2. The Results report a statistically significant difference from placebo at week 2 and a clinically significant difference by week 6, but do not establish that maximum effectiveness is reached at 6–8 weeks. These findings concern pediatric anxiety disorders, rather than antidepressant treatment generally. (LLM, conf=0.88)

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  • Most studies included in the meta-analysis showing that most improvements occurred in the first 6-8 weeks of SSRI therapy used fixed medication dosages.

    “Most studies included in the meta-analysis showing that most improvements occurred in the first 6–8 weeks of SSRI therapy used fixed medication dosages”

    From A Sequential Multiple Assignment Randomized Trial (SMART) study of medication and CBT sequencing in the treatment of pediatric anxiety disorders (2021) · cites this paper as [21]

    The Discussion (page unavailable) reports that improvement began early and approximately 50% of the week-12 treatment-related improvement occurred by week 4, supporting the claim’s broad timing point. It does not say that most included studies used fixed medication doses; the Discussion instead notes variation in trial dosing methods and calls for more fixed-dose trials. (LLM, conf=0.86)

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Research works printed but not linked: 2

  1. [26]Strawn JR Welge JA Wehry AM Keeshin B Rynn MA Efficacy and Tolerability of Antidepressants in Pediatric Anxiety Disorders: a Systematic Review and Meta-Analysis Depress Anxiety 2015 32 3 149 157 25449861 PMC4514767
  2. [69]Varigonda AL Jakubovski E Taylor MJ Freemantle N Coughlin C Bloch MH Systematic Review and Meta-Analysis: Early Treatment Responses of Selective Serotonin Reuptake Inhibitors in Pediatric Major Depressive Disorder J Am Acad Child Adolesc Psychiatry 2015 54 7 557 564 26088660

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Authors
Strawn, J. R., Mills, J. A., Sauley, B. A., & Welge, J. A.
Affiliations
  • Cincinnati Children's Hospital Medical Center (US)
  • University of Cincinnati (US)
Corresponding author
Strawn, Jeffrey R.
Venue
Journal of the American Academy of Child & Adolescent Psychiatry
Publisher
Elsevier BV
Published
2018-04
Volume
57
Issue
4
Pages
235-244.e2
ISSN
0890-8567 (ISSN-L)
OpenAlex
W2791558269
Cited by
98
References
71
Citations by year
2026: 6 · 2025: 9 · 2024: 16 · 2023: 14 · 2022: 10 · 2021: 17 · 2020: 7 · 2019: 11 · 2018: 8
FWCI
1.71
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Academy of Child & Adolescent Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5k23mh106037-04)
  • National Institute of Mental Health (K23-MH106037)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
Keywords
childhood anxiety disorders, antidepressants, selective serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, antidepressant dose, treatment response trajectories, symptom severity, Bayesian updating, generalized anxiety disorder, separation anxiety disorder, social anxiety disorder
MeSH terms
Serotonin and Noradrenaline Reuptake Inhibitors, Adolescent, Anxiety Disorders, Humans, Selective Serotonin Reuptake Inhibitors

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