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BAY 3670549

Phase 2

Atrial Fibrillation | Small molecule | Cardiovascular |Bayer AG|Trials Updated: Oct 6, 2026

BAY 3670549 development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Jun 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment360

FDA Designations

No designations recorded

BAY 3670549 clinical trials

BAY 3670549 · 1 trial · 1 indication

Phase 2 1
NCT07625215A Study to Test How Well BAY 3670549 Works and How Safe it is in Patients With Atrial FibrillationAtrial Fibrillation
RECRUITING360 Analytics
PHASE2RECRUITING
A Study to Test How Well BAY 3670549 Works and How Safe it is in Patients With Atrial Fibrillation
Atrial FibrillationUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with conversion from atrial fibrillation (AF) to sinus rhythm (SR), sustained for ≥1 minute, within 3 hours after start of study intervention administration, and prior to use of rescue therapy or other SoC for cardioversion
Up to 3 hours after start of administration of study intervention

AF = atrial fibrillation ; SR = sinus rhythm ; SoC = Standard of Care;

Secondary Endpoints

Number of Participants who experienced Treatment Emergent Adverse Events (TEAE)s
From pre-dose* up to 48 hours after start of administration of study intervention
Time to conversion from AF to SR as defined in the primary endpoint
Up to 3 hours after start of administration of study intervention
Number of Participants in SR, at 3 hours after start of study intervention administration without prior use of rescue therapy or other SoC for cardioversion
Up to 3 hours after start of administration of study intervention
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
BAY 3670549EXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
BAY 3670549DRUGintravenous (IV) treatment
PlaceboOTHERintravenous (IV) treatment
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Eligibility Criteria

Age Range18 Years to 85 Years
SexALL
Healthy VolunteersNo
Study Sites30

Inclusion Criteria: * Participant must be 18 to 85 years of age inclusive, at the time of signing the informed consent. * Participant is hemodynamically stable and does not require emergency cardioversion, as determined by the investigator. * Participant has a current episode of atrial fibrillation...

Countries:United StatesBelgiumBulgariaGermanyHungaryItalyNetherlandsPoland
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Competitive Landscape -Atrial Fibrillation 159 trials

Recent Changes (Last 90 Days)

LOWOct 6, 2026NCT07625215startDate: changed
LOWOct 6, 2026NCT07625215startDate: changed
LOWSep 9, 2026NCT07625215Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 9, 2026NCT07625215Status: NOT_YET_RECRUITING → RECRUITING
LOWJul 30, 2026NCT07625215startDate: changed
LOWJul 30, 2026NCT07625215startDate: changed

Frequently asked questions about BAY 3670549

What is BAY 3670549 used for?

BAY 3670549 is an investigational small molecule being studied for the treatment of atrial fibrillation, a common heart rhythm disorder. It is in Phase 2 clinical development and is not yet approved for any use. Bayer AG is evaluating it in patients with atrial fibrillation.

Who is developing BAY 3670549?

BAY 3670549 is being developed by Bayer AG, which trades on the OTC market under the ticker BAYRY. Bayer is the sponsor of the clinical program evaluating the compound in atrial fibrillation.

What phase is BAY 3670549 in?

BAY 3670549 is in Phase 2 clinical development. It is an investigational small molecule and has not been approved by the FDA or any other regulatory agency. One Phase 2 trial is currently recruiting participants.

What clinical trial is BAY 3670549 in?

BAY 3670549 is being studied in the Phase 2 trial NCT07625215, titled A Study to Test How Well BAY 3670549 Works and How Safe it is in Patients With Atrial Fibrillation. The trial is recruiting and plans to enroll 360 participants across the United States, Belgium, Bulgaria, Germany, Hungary, Italy, the Netherlands, and Poland.

How is the BAY 3670549 trial designed?

The Phase 2 trial NCT07625215 is a randomized, double-blind, placebo-controlled study of BAY 3670549 in patients with atrial fibrillation. It plans to enroll 360 participants aged 18 years and older, and it does not select patients based on a biomarker. The trial is currently recruiting.