Arrhythmias & electrophysiology

Multicenter, Phase 2, Randomized Controlled Study of the Efficacy and Safety of Etripamil Nasal Spray for the Acute Reduction of Rapid Ventricular Rate in Patients With Symptomatic Atrial Fibrillation (ReVeRA-201)

Circ Arrhythm ElectrophysiolPublished Randomised controlled trial

Primary result · Mean maximum reduction in VR, adjusted for baseline VRResult — go to the resultDifference of mean maximum reductions −29.91 bpm 95% CI −40.31 to −19.52

Authors' conclusion

Intranasal etripamil 70 mg reduced VR and improved symptom relief and treatment satisfaction.

Study context

Population
Patients presenting urgently with atrial fibrillation (AF) with rapid ventricular rate (VR ≥110 bpm)56 dosed
Participants
69 patients
Comparison
Etripamil nasal spray 70 mg vs placebo nasal spray
  • Etripamiln = 27
  • Placebon = 29reference
Primary endpoint
Effectiveness of etripamil in reducing VR in AF-RVR
Follow-up
Within 60 minutes of treatment
Methodological detailsdouble-blind, placebo-controlled, multicentre, Canada and the Netherlands
  • Double-blind
  • Placebo-controlled
  • Multicentre
  • Canada and the Netherlands

Primary result

As reported in the abstract

Mean maximum reduction in VR, adjusted for baseline VR · over 60 minutes

Difference of mean maximum reductions

−29.91 bpm

95% CI −40.31 to −19.52

P < 0.0001

Etripamilvs Placebo
difference of mean maximum reductions −29.91 bpm (95% CI −40.31 to −19.52); P < 0.0001

Secondary outcomes

OutcomeEtripamilPlacebo
VR reduction ≥20%66.7%0 events

VR <100 bpm, VR reduction ≥10% or ≥20%

Significantly greater proportions with etripamil vs placebo (longer median duration <100 bpm)

Duration of VR reduction

VR reductions persisted up to 150 minutes

Treatment satisfaction (TSQM-9): symptom relief and treatment effectiveness

Significant improvement with etripamil vs placebo

Safety

Serious adverse events — Etripamil
1 events

Serious adverse events

Serious adverse events were rare; 1 etripamil patient had transient severe bradycardia and syncope, assessed as due to hypervagotonia

Original publication

Multicenter, Phase 2, Randomized Controlled Study of the Efficacy and Safety of Etripamil Nasal Spray for the Acute Reduction of Rapid Ventricular Rate in Patients With Symptomatic Atrial Fibrillation (ReVeRA-201). Circ Arrhythm Electrophysiol. Published 11 November 2023. doi:10.1161/circep.123.012567

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