Clinical TrialEsketaminePlaceboCompleted

Esketamine vs Midazolam for MDD with Fluctuating Antidepressant Response: A Double-Blind Pilot RCT (Xiao 2023, Beijing Anding Hospital)

Single-centre, double-blind, midazolam-controlled randomised clinical trial (JAMA Netw Open 2023; Xiao C, Zhou J, Li A, Zhang L; Beijing Anding Hospital, Capital Medical University, China; PMID 37578792). Participants: 30 adults with MDD and fluctuating antidepressant response (FAR), randomised 1:1. Intervention: single IV esketamine 0.2 mg/kg vs IV midazolam 0.045 mg/kg over 40 minutes, both in 50 mL normal saline; participants maintained on current oral antidepressant. Recruitment: August 2021–January 2022. Primary outcome: MADRS response (≥50% reduction) at 2 weeks. Secondary: MADRS remission, CGI-S, safety (CADSS, YMRS, C-SSRS). No formal sample size calculation; pilot study. CT.gov: 0 hits; PubMed DataBankList empty. Chinese RCTs post-2018 are typically ChiCTR-registered but number not recovered from available data.

Target Enrollment
30 participants
Study Type
interventional
Design
Randomized, double Blind

Study Arms & Interventions

Esketamine-treated group

experimental

Participants received a single subanesthetic intravenous dose of esketamine while maintaining their original oral antidepressant regimen.

Interventions

  • Esketamine0.2 mg/kg
    via IVsingle dose1 doses total

    Administered over 40 minutes via syringe pump; participants maintained ongoing adequate antidepressant treatment (ADT).

Midazolam-controlled group

active comparator

Participants received a single intravenous dose of midazolam while maintaining their original oral antidepressant regimen.

Interventions

  • Placebo0.045 mg/kg
    via IVsingle dose1 doses total

    Administered over 40 minutes via syringe pump; participants maintained ongoing adequate antidepressant treatment (ADT).

Primary Results(1 publication)

Participants

Response Rates

≥50% reduction in Montgomery-Åsberg Depression Rating Scale (MADRS)

10/15(66.7%)·C. et al. 2023
1/15(6.7%)·C. et al. 2023
10/15(66.7%)·C. et al. 2023
5/15(33.3%)·C. et al. 2023

MADRS score of 10 or lower (remission)

10/15(66.7%)·C. et al. 2023
3/15(20.0%)·C. et al. 2023
8/15(53.3%)·C. et al. 2023
1/15(6.7%)·C. et al. 2023
8/15(53.3%)·C. et al. 2023
3/15(20.0%)·C. et al. 2023
9/15(60.0%)·C. et al. 2023
4/15(26.7%)·C. et al. 2023
7/15(46.7%)·C. et al. 2023
3/15(20.0%)·C. et al. 2023
6/15(40.0%)·C. et al. 2023
2/15(13.3%)·C. et al. 2023
9/15(60.0%)·C. et al. 2023
4/15(26.7%)·C. et al. 2023

Adverse Events (from all publications)

Arm / GroupnAny TEAESevereSeriousDiscont.
Esketamine-treated groupexperimental150(0.0%)1(6.7%)
Midazolam-controlled groupactive_comparator150(0.0%)0(0.0%)

* 1 participant discontinued due to withdrawal of consent (job change). No serious adverse events were observed.

* No serious adverse events were observed.

Study Details

  • Status
    Completed
  • Type
    interventional
  • Design
    Randomizeddouble Blind
  • Target Enrollment30 participants
  • Timeline
    Start: 2021-08-01
    End: 2022-01-31
  • Compounds

Related Publications

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