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Effects of selective serotonin reuptake inhibitors (SSRIs) on suicide: A network meta-analysis of double-blind

Yuling Li1, Chengfeng Chen1, Qinghua Chen1

  • 1The Mental Health College of Guangzhou Medical University, Guangzhou, PR China; Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, PR China.

Psychiatry Research
|April 25, 2024
PubMed

Insights

Selective serotonin reuptake inhibitors (SSRIs) show short-term protection against suicidal thoughts in mental health patients. However, their long-term effectiveness in reducing suicidal ideation and behavior is limited.

Area of Science:

  • Psychiatry
  • Pharmacology
  • Clinical Psychology

Background:

  • The association between selective serotonin reuptake inhibitors (SSRIs) and suicide risk in individuals with mental disorders is a subject of ongoing debate.
  • Understanding the precise impact of SSRIs on suicidal ideation and behavior is crucial for effective mental health treatment.

Purpose of the Study:

  • To conduct a network meta-analysis evaluating the effects of SSRIs on suicide risk in patients diagnosed with mental disorders.
  • To synthesize evidence from double-blind randomized trials to clarify the efficacy of SSRIs in managing suicidal ideation and behavior.

Main Methods:

  • A comprehensive literature search was performed across major databases (PubMed, Web of Science, PsycINFO, CENTRAL, Wanfang, CNKI) up to December 19, 2023.
  • Included 29 double-blind randomized trials focusing on suicidal ideation and suicidal behavior as primary outcomes.
  • Network meta-analysis was employed to compare SSRIs, non-SSRIs, and placebo treatments.

Main Results:

  • SSRIs demonstrated a short-term protective effect against suicidal ideation by week 2, with paroxetine, fluoxetine, and escitalopram showing significant risk reduction compared to placebo (sertraline was an exception).
  • This protective effect on suicidal ideation diminished by week 8.
  • No significant differences in efficacy were observed between SSRIs, non-SSRIs, and placebo for instances of suicidal behavior between weeks 1 and 10.

Conclusions:

  • SSRIs may provide transient protection against suicidal ideation in patients with mental disorders.
  • The long-term efficacy of SSRIs in mitigating suicidal ideation and preventing suicidal behaviors appears limited.
  • Further research may be needed to explore alternative or adjunctive strategies for long-term suicide risk management in this population.
Keywords:
Mental disorderSSRIsSuicidal behaviorSuicidal ideation

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