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BAY3389934

Phase 1

Drug-drug Interaction | Small molecule | Other |Bayer AG|Last Updated: Aug 26, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment16

FDA Designations

No designations recorded

Clinical trial landscape

BAY3389934 · 2 trials · 3 indications

Phase 1 2
NCT07652723A Study to Learn About How Safe BAY3389934 is and How it Affects Blood Clotting When Given Alone or With Aspirin in Healthy ParticipantsDrug-drug Interaction
RECRUITING16 Analytics
NCT06854640A Study to Learn About How Safe BAY 3389934 is, Its Suitable Dose, and How it Affects the Participants With Sepsis Induced CoagulopathySepsis
RECRUITING36 Analytics
PHASE1RECRUITING
A Study to Learn About How Safe BAY3389934 is and How it Affects Blood Clotting When Given Alone or With Aspirin in Healthy Participants
Drug-drug InteractionUnlock trial analytics
PHASE1RECRUITING
A Study to Learn About How Safe BAY 3389934 is, Its Suitable Dose, and How it Affects the Participants With Sepsis Induced Coagulopathy
SepsisUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with treatment-emergent adverse events (TEAEs)
From first dose of study intervention until 14 days after last study intervention

An AE is any untoward medical occurrence in a clinical study participant, associated with the use of study intervention, whether or not considered related to the study intervention.

The number of participants with TEAEs (treatment-emergent adverse events)
After the first administration of study intervention to 1 hour after stop from study intervention, up to 97 hours
Severity of TEAEs
After the first administration of study intervention to 1 hour after stop from study intervention, up to 97 hours

Secondary Endpoints

Ratios to baseline of Activated Partial Thromboplastin Time (aPTT) 4h and 5h after baseline
4 hours and 5 hours after baseline
Ratios to baseline of Prothrombin Time (PT) 4 h and 5 h after baseline
4 hours and 5 hours after baseline
Maximum ratio to baseline of Activated Partial Thromboplastin Time (aPTT) from baseline to 24 h post dose
Baseline and 24 hours post dose
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Treatment sequence A-B-CEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Treatment sequence A-C-BEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Treatment sequence B-A-CEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Treatment sequence B-C-AEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Treatment sequence C-A-BEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Treatment sequence C-B-AEXPERIMENTALTreatment A: no treatment on day -1, 4 hours infusion of BAY3389934 on day 1 in Dose A. Treatment B: 500 mg aspirin on day -1, 100 mg aspirin on day 1. Treatment C: 500 mg aspirin on day -1, 100 mg aspirin on day 1 followed by 4 hours infusion of BAY3389934 in Dose A. Participants will receive the treatments in mentioned sequence. Study periods will be separated by a wash-out phase of at least 3 days after Treatment A and at least 14 days after Treatments B, C, respectively.
Cohort 1 of BAY3389934EXPERIMENTALSubjects will receive titrated dose of BAY3389934 as continuous infusion over up to 96 hours.
Cohort 2 of BAY3389934EXPERIMENTALSubjects will receive titrated dose of BAY3389934 as continuous infusion over up to 96 hours.

Interventions

NameTypeDescription
AspirinDRUGSingle oral dose of 500 mg tablet or 100 mg tablet.
BAY3389934DRUG4 hours infusion of BAY3389934 in Dose A.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Participant must be 18 to 55 years of age inclusive, at the time of signing the informed consent. * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, vital signs, laboratory tests, and cardiac monitoring. ...

Countries:United StatesBelgiumFranceGermanyNetherlands
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Recent Changes (Last 90 Days)

LOWAug 26, 2026NCT07652723primaryCompletionDate: changed
LOWAug 26, 2026NCT07652723primaryCompletionDate: changed
LOWAug 20, 2026NCT06854640Completion: 2027-02-15 → 2027-01-17
LOWAug 20, 2026NCT06854640Completion: 2027-02-15 → 2027-01-17
MEDIUMAug 3, 2026NCT07652723lastUpdatePostDate: changed

Frequently asked questions about BAY3389934

What is BAY 3389934 used for?

BAY 3389934 is an investigational small molecule being developed for sepsis, sepsis associated disseminated intravascular coagulation (DIC), and drug-drug interaction studies. It is being studied in patients with sepsis induced coagulopathy and in healthy volunteers to assess its safety, dosing, and effects on blood clotting.

Who makes BAY 3389934?

BAY 3389934 is being developed by Bayer AG, a German pharmaceutical company. Bayer's stock is traded over-the-counter under the ticker symbol BAYRY. The drug is currently in Phase 1 clinical development for hematology indications.

What phase is BAY 3389934 in?

BAY 3389934 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Multiple Phase 1 trials are ongoing or completed to evaluate its safety, tolerability, and pharmacological effects in healthy volunteers and patients with sepsis induced coagulopathy.

What clinical trials is BAY 3389934 in?

BAY 3389934 is being studied in several Phase 1 trials. NCT06854640 is recruiting patients with sepsis induced coagulopathy in Belgium, France, Germany, and the Netherlands. NCT07176728 was completed in healthy Japanese volunteers. NCT07652723 is recruiting healthy participants in the United States to study drug-drug interactions with aspirin.

Is BAY 3389934 the same as BAY3389934?

Yes, BAY 3389934 and BAY3389934 refer to the same investigational drug. The compound is being developed by Bayer AG under these interchangeable names. Clinical trial NCT07652723 uses the name BAY3389934, while other trials use BAY 3389934.