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Etripamil

Phase 3

Atrial Fibrillation | Small molecule | Cardiovascular |Milestone Pharmaceuticals Inc.|Last Updated: Jan 14, 2026

Success Probability
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment819
FDA Designations
No designations recorded
Clinical trial landscape

Etripamil · 4 trials · 3 indications

Phase 3 1Phase 2 2Phase 1 1
NCT06716021ReVeRA-301: Etripamil in Atrial Fibrillation Phase 3Atrial Fibrillation
NOT YET_RECRUITING750 Analytics
PHASE3NOT YET_RECRUITING
ReVeRA-301: Etripamil in Atrial Fibrillation Phase 3
Atrial FibrillationUnlock trial analytics
Study Endpoints
Primary Endpoints
Demonstrate the efficacy of etripamil NS over placebo in patients with AF.
30 minutes from first drug administration

The maximum reduction in ventricular rate, measured from ECG CMS recordings, within 30 minutes from first drug administration

The Maximum Reduction in Ventricular Rate, Measured on Holter Monitoring, Within 60 Minutes From Drug Administration.
60 minutes post drug administration

Baseline ventricular rate is defined as the average heart rate over 5 minutes immediately prior to drug administration. Nadir is defined as the lowest moving average heart rate over 5 minutes recorded in the 60 minutes post drug administration.

The Percentage of Subjects Successfully Converted From PSVT to Sinus Rhythm Within 15 Minutes of Study Drug Administration
Within 15 minutes of study drug administration

The primary efficacy endpoint was the rate of successful PSVT conversion to sinus rhythm lasting at least 30 seconds within 15 minutes of study drug administration after a minimum of 5 minutes in sustained PSVT.

Cmax of Etripamil after single dosing
Day -1 to Day 11

To measure Cmax of Etripamil after single dosing

Cmax of MSP-2030 after single dosing
Day -1 to Day 11

To measure Cmax of MSP-2030 after single dosing

Secondary Endpoints
PR interval after single dosing
Day -1 to Day 11
Blood pressure after single dosing
Day -1 to Day 11
Heart rate after single dosing
Day -1 to Day 11
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PlaceboPLACEBO_COMPARATORPatients will self-administer an initial dose of placebo for a perceived episode of AF with RVR, followed by an optional second dose 10 minutes later if symptoms persist.
EtripamilEXPERIMENTALPatients will self-administer an initial dose of etripamil for a perceived episode of AF with RVR, followed by an optional second dose 10 minutes later if symptoms persist.
Etripamil Nasal Spray 70mgEXPERIMENTALEtripamil Nasal Spray 70mg single dose
Etripamil Placebo Nasal Spray 70mgPLACEBO_COMPARATOREtripamil Placebo Nasal Spray 70mg single dose
Interventions
NameTypeDescription
PlaceboDRUGThe formulation of placebo will consist of water, sodium acetate, disodium EDTA, and sulfuric acid to reproduce the same pH as the etripamil formulation.
EtripamilDRUGThe formulation of etripamil is for IN administration and will consist of etripamil, water, acetic acid, disodium ethylene-diamine-tetra-acetic acid (EDTA), and sulfuric acid. The dose of etripamil to be evaluated in this study is 70 mg with an optional second dose of 70 mg 10 minutes after the first dose if symptoms persist.
Etripamil Nasal Spray 70mgDRUGEtripamil NS 70 mg will be administered via the Aptar Pharma Nasal Spray Bidose System, supplied as prefilled devices packaged into child-resistant boxes with instructions for use provided in the study drug box.
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: 1. Age 18 years and over. 2. Provision of written informed consent. 3. Documented history of symptomatic AF (paroxysmal, persistent, or permanent) with a ventricular rate of ≥110 bpm. * Documentation: electrocardiogram (ECG) tracing (including 12-lead ECG or ECG strip) showi...

Countries:CanadaNetherlandsUnited StatesChina
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06716021primaryCompletionDate: changed
LOWMay 24, 2026NCT06716021studyFirstPostDate: changed