POOLED SAFETY DATA

CARDAMYST™ was well tolerated, with most adverse reactions localized to the nasal administration site1-3

The safety of CARDAMYST was evaluated using pooled data from 321 patients across double-blind, randomized, placebo-controlled studies1-3

Most Frequent (≥5.0%) Adverse Reactions Observed in Randomized Controlled Studies*

CARDAMYST
70 mg
n=235
%
CARDAMYST
2x70 mg
n=86
%
Placebo
n=223
%
Nasal discomfort28236
Nasal congestion14121
Rhinorrhea12102
Throat irritation761
Epistaxis671
Similar rates of adverse reactions were seen in patients who self-administered 1 or 2 doses of CARDAMYST2

1.6% of patients discontinued CARDAMYST due to treatment-related adverse reactions4

Adverse reactions that occurred within 24 hours of study drug administration for perceived PSVT in the double-blind, placebo-controlled studies, NODE-1, NODE-301 Part 1, NODE-301 Part 2 (RAPID), and NODE-301 Part 3 (RAPID Extension) that had an overall incidence of 5% or greater and where the incidence in the pooled CARDAMYST group is at least 1% greater than that of the pooled placebo group.

2x70 mg: first administration of 70-mg CARDAMYST followed by a repeat dose of 70-mg CARDAMYST 10 minutes later if symptoms persisted.

In phase 2 & 3 clinical studies (N=1642)4:

  • Within 24 hours of CARDAMYST (etripamil) nasal spray administration

    • 0.4% of patients experienced hypotension

    • 0.2% of patients experienced syncope

    • 0.1% of patients had Mobitz I second-degree AV block

    • 0 cases of Mobitz II second-degree or third-degree AV block

How to use CARDAMYST

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Additional clinical data

See repeat use data from the open-label NODE-303 study.

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References:
1CARDAMYST (etripamil) Prescribing Information. Charlotte, NC: Milestone Pharmaceuticals USA, Inc. 2Stambler BS, Camm AJ, Alings M, et al; RAPID Investigators. Self-administered intranasal etripamil using a symptom-prompted, repeat-dose regimen for atrioventricular-nodal-dependent supraventricular tachycardia (RAPID): a multicentre, randomised trial. Lancet. 2023;402(10396):118-128. doi:10.1016/S0140-6736(23)00776-6 3Efficacy and safety of etripamil for the termination of spontaneous paroxysmal supraventricular tachycardia (PSVT). ClinicalTrials.gov identifier: NCT03464019. Updated July 12, 2024. Accessed March 21, 2025. https://clinicaltrials.gov/study/NCT03464019 4Data on file. Charlotte, NC: Milestone Pharmaceuticals USA, Inc.