Acute cardiac care & resuscitationRandomised controlled trial

Levosimendan to Facilitate Weaning From ECMO in Patients With Severe Cardiogenic Shock

JAMAPublished

  • Randomised controlled trial
  • double-blind
  • placebo-controlled
  • multicentre (11 intensive care units (ICUs) in France)

Authors' conclusion

Among patients with severe but potentially reversible cardiogenic shock supported by VA-ECMO, early levosimendan administration did not significantly reduce the time to successful weaning of ECMO compared with placebo.

Study context

Population
Adults with acute, severe but potentially reversible cardiogenic shock who started venoarterial extracorporeal membrane oxygenation (VA-ECMO) in the preceding 48 hours
Participants
205 adults
Comparison
Levosimendan vs placebo
  • Levosimendann = 101
  • Placebon = 104reference
Primary endpoint
Time to successful ECMO weaning
Follow-up
Within 30 days following randomization

Primary result

As reported in the abstract

Successful ECMO weaning · 30 days
Each group vs placeboRisk difference (95% CI)
Levosimendan
0.0%(−12.8% to 12.7%)
Each group vs placeboSubdistribution hazard ratio (95% CI)P value
Levosimendan
1.02(0.74–1.39)
P = 0.92

Secondary outcomes

ECMO duration

P = 0.53

ICU length of stay

P = 0.42

OutcomeLevosimendanPlaceborisk difference (95% CI)P value
Mortality · 60 days27.7%25.0%2.7% (−9.0% to 15.3%)P = 0.78

Safety

OutcomeLevosimendanPlaceboabsolute risk difference (95% CI)
Ventricular arrhythmias17.8%8.7%9.2% (0.4%–18.1%)

Original publication

Levosimendan to Facilitate Weaning From ECMO in Patients With Severe Cardiogenic Shock. JAMA. Published 6 January 2026. doi:10.1001/jama.2025.19843

Summarised from the published abstract; every number is checked against it