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Study to Gather Information About the Proper Dosing and Safety of the Oral FXIa Inhibitor BAY 2433334 in Patients Following an Acute Heart Attack

Multicenter, Randomized, Placebo Controlled, Double-blind, Parallel Group, Dose-finding Phase 2 Study to Evaluate the Efficacy and Safety of BAY 2433334 in Patients Following an Acute Myocardial Infarction

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04304534
Acronym
PACIFIC-AMI
Enrollment
1601
Registered
2020-03-11
Start date
2020-06-17
Completion date
2022-02-21
Last updated
2023-04-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myocardial Infarction

Brief summary

The purpose of this study is to try to find the best dose of the new drug BAY 2433334 to give to participants and to look at how well BAY 2433334 works on top of a dual antiplatelet therapy (acetylsalicylic acid +/- clopidogrel) in patients following a recent heart attack (myocardial infarction) that happens when a blood vessel in the heart suddenly becomes blocked. BAY 2433334, works by blocking a step of the blood clotting process in our body and thins the blood and is a so called oral FXIa inhibitor.

Interventions

Tablet, taken orally once a day.

Tablet, taken orally once a day.

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
45 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must be 45 years of age or older, at the time of signing the informed consent * Acute myocardial infarction (excluding MI associated with PCI or CABG revascularization procedures) with: * clinical symptoms of acute myocardial infarction AND * elevated biomarkers of myocardial necrosis (creatine kinase-muscle and brain isoenzyme \[CK-MB\] or cardiac troponins) AND * at least one of the following risk factors need to be fulfilled: * Age ≥ 65 years * Prior MI (before the index AMI event) * Prior peripheral arterial disease * Diabetes Mellitus * Prior coronary artery bypass grafting (CABG) AND * initial angiography and revascularization procedures, either PCI or CABG, as treatment for the index event performed before randomization. (Note: a planned, staged PCI procedure can be performed after randomization) * Plan for dual antiplatelet therapy (ASA + P2Y12 inhibitor) after hospital discharge for the index AMI * Randomization during hospitalization for the index AMI event and latest within 5 days of hospital admission * Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. Written informed consent has to be signed before any study-specific procedure.

Exclusion criteria

* Hemodynamically significant ventricular arrhythmias or cardiogenic shock at time of randomization * Active bleeding; known bleeding disorder, history of major bleeding (intracranial, retroperitoneal, intraocular) or clinically significant gastrointestinal bleeding within last 6 months of randomization * Planned use or requirement of full dose and long term anticoagulation therapy during study conduct.

Design outcomes

Primary

MeasureTime frameDescription
Efficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)From baseline up to 52 weeksCV death included death due to stroke, MI, heart failure or cardiogenic shock, sudden death or any other death due to other cardiovascular causes. Death due to non-traumatic hemorrhage was included. Acute MI was used when there was evidence of myocardial necrosis in a clinical setting consistent with acute myocardial ischemia. Stroke was defined as an acute episode of focal or global neurological dysfunction caused by an injury of the brain, spinal cord, or retina as a result of hemorrhage or infarction. ST was defined incorporating diagnostic certainty as well as timing: Definite ST: The highest level of certainty. Either angiographic or pathological confirmation of stent thrombosis. Probable ST: Regardless of the time after the index procedure, any MI that is related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation of stent thrombosis and in the absence of any other obvious cause
Safety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 5From baseline up to 52 weeksType 2: any overt, actionable sign of hemorrhage that doesn't fit the criteria for type 3 or 5 but meets at least one of the following criteria: 1) requires nonsurgical, med intervention by a HCP, 2) leads to hospital or rise in level of care, or 3) prompt eval. Type 3a: 1) overt bleed + Hg drop of 3 to \<5 g/dl (provided Hg drop is related to bleed); 2 any transfusion with overt bleed. Type 3b: 1) overt bleed + Hg drop ≥5 g/dL (provided Hg drop is related to bleed); 2) cardiac tamponade; 3) bleed requiring surgical intervention for control (exclude dental/nasal /skin/hemorrhoid); 4) bleed requiring IV vasoactive agents. Type 3c: 1) ICH hemorrhage (doesn't include microbleeds or HT, does include intraspinal); subcategories confirmed by autopsy or imaging or LP; 2) intraocular bleed compromising vision. Type 5: fatal bleed. Type 5a: probable fatal bleed; no autopsy or image confirmation but clinical suspicion. Type 5b: definite fatal bleed; overt bleed or autopsy or image confirmation.

Secondary

MeasureTime frameDescription
Efficacy - Number of Participants With StrokeFrom baseline up to 52 weeksStroke was defined as an acute episode of focal or global neurological dysfunction caused by an injury of the brain, spinal cord, or retina as a result of hemorrhage or infarction.
Efficacy - Number of Participants With Stent ThrombosisFrom baseline up to 52 weeksST was defined incorporating diagnostic certainty as well as timing: Definite ST: The highest level of certainty. Either angiographic or pathological confirmation of stent thrombosis. Probable ST: Regardless of the time after the index procedure, any MI that is related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation of stent thrombosis and in the absence of any other obvious cause
Efficacy - Number of Participants With All Cause MortalityFrom baseline up to 52 weeks
Efficacy - Number of Participants With CV DeathFrom baseline up to 52 weeksCV death included death due to stroke, MI, heart failure or cardiogenic shock, sudden death or any other death due to other cardiovascular causes. Death due to non-traumatic hemorrhage was included.
Safety - Number of Participants With BARC Bleeding Definition Type 3, 5From baseline up to 52 weeksType 3a: 1) overt bleed + Hg drop of 3 to \<5 g/dl (provided Hg drop is related to bleed); 2 any transfusion with overt bleed. Type 3b: 1) overt bleed + Hg drop ≥5 g/dL (provided Hg drop is related to bleed); 2) cardiac tamponade; 3) bleed requiring surgical intervention for control (exclude dental/nasal /skin/hemorrhoid); 4) bleed requiring IV vasoactive agents. Type 3c: 1) ICH hemorrhage (doesn't include microbleeds or HT, does include intraspinal); subcategories confirmed by autopsy or imaging or LP; 2) intraocular bleed compromising vision. Type 5: fatal bleed. Type 5a: probable fatal bleed; no autopsy or image confirmation but clinical suspicion. Type 5b: definite fatal bleed; overt bleed or autopsy or image confirmation.
Safety - Number of Participants With BARC Bleeding Definition Type 1,2,3,5From baseline up to 52 weeksType 1: bleeding that is not actionable and does not cause the patient to seek unscheduled performance of studies, hospitalization, or treatment by a healthcare professional; may include episodes leading to self-discontinuation of medical therapy by the patient without consulting a healthcare professional. For BARC bleeding definition 2,3 and 5, please refer to second primary endpoint.
Safety - Number of Participants With All BleedingFrom baseline up to 52 weeksAll bleeding events occurred from first intake of study intervention until 2 days after the last intake of study intervention
Efficacy - Number of Participants With MIFrom baseline up to 52 weeksAcute MI was used when there was evidence of myocardial necrosis in a clinical setting consistent with acute myocardial ischemia. According to MI Universal Definition from 2018 the diagnosis of MI requires combination of: 1. Presence of acute myocardial injury. 2. Evidence of acute myocardial ischemia derived from the clinical presentation, electrocardiographic changes, or the results of myocardial or coronary artery imaging, or in case of post-mortem pathological findings irrespective of biomarker values.

Countries

Austria, Belgium, Czechia, Germany, Hungary, Italy, Japan, Netherlands, Poland, Spain, Sweden, Switzerland, United Kingdom, United States

Participant flow

Recruitment details

Study was conducted at 157 centers in 14 countries or regions, between 17-Jun-2020 (first participant first visit) and 21-Feb-2022 (last participant last visit)

Pre-assignment details

1664 participants were screened, 63 participants were screening failures. 1601 participants were randomized in a 1:1:1:1 ratio to 4 treatment groups: 397, 401, and 402 participants to the asundexian 10 mg, 20 mg and 50 mg groups and 401 participants to the placebo group

Participants by arm

ArmCount
Asundexian 10 mg
Participants received Asundexian (BAY2433334) 10 mg
397
Asundexian 20 mg
Participants received Asundexian (BAY2433334) 20 mg
401
Asundexian 50 mg
Participants received Asundexian (BAY2433334) 50 mg
402
Placebo
Participants received placebo
401
Total1,601

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event35403944
Overall StudyDeath7243
Overall StudyLost to Follow-up0123
Overall StudyNon-Compliance with study drug0111
Overall StudyPhysician Decision4995
Overall StudySubject Decision34252526
Overall StudySubject decision COVID-19 pandemic related1010
Overall StudyTechnical Problems2234
Overall StudyUnspecific4222
Overall StudyWithdrawal by Subject7274

Baseline characteristics

CharacteristicAsundexian 20 mgAsundexian 50 mgAsundexian 10 mgPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
278 Participants284 Participants275 Participants265 Participants1102 Participants
Age, Categorical
Between 18 and 65 years
123 Participants118 Participants122 Participants136 Participants499 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants0 Participants1 Participants0 Participants3 Participants
Race (NIH/OMB)
Asian
50 Participants50 Participants53 Participants50 Participants203 Participants
Race (NIH/OMB)
Black or African American
2 Participants2 Participants3 Participants1 Participants8 Participants
Race (NIH/OMB)
More than one race
0 Participants2 Participants1 Participants2 Participants5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants1 Participants5 Participants9 Participants17 Participants
Race (NIH/OMB)
White
345 Participants347 Participants334 Participants339 Participants1365 Participants
Sex: Female, Male
Female
87 Participants100 Participants93 Participants90 Participants370 Participants
Sex: Female, Male
Male
314 Participants302 Participants304 Participants311 Participants1231 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
10 / 3977 / 40110 / 4027 / 401
other
Total, other adverse events
89 / 395118 / 39794 / 402107 / 399
serious
Total, serious adverse events
74 / 39582 / 39767 / 40282 / 399

Outcome results

Primary

Efficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)

CV death included death due to stroke, MI, heart failure or cardiogenic shock, sudden death or any other death due to other cardiovascular causes. Death due to non-traumatic hemorrhage was included. Acute MI was used when there was evidence of myocardial necrosis in a clinical setting consistent with acute myocardial ischemia. Stroke was defined as an acute episode of focal or global neurological dysfunction caused by an injury of the brain, spinal cord, or retina as a result of hemorrhage or infarction. ST was defined incorporating diagnostic certainty as well as timing: Definite ST: The highest level of certainty. Either angiographic or pathological confirmation of stent thrombosis. Probable ST: Regardless of the time after the index procedure, any MI that is related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation of stent thrombosis and in the absence of any other obvious cause

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)27 Participants
Asundexian 20 mgEfficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)24 Participants
Asundexian 50 mgEfficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)22 Participants
PlaceboEfficacy - Number of Participants With Composite of CV Death, MI, Stroke and Stent Thrombosis (ST)22 Participants
Comparison: Comparison of the Asundexian 20 mg group and 50 mg group versus Placebo groupp-value: =0.843990% CI: [0.687, 1.612]Log Rank
Comparison: Comparison of the Asundexian 20 mg group versus Placebo groupp-value: =0.756290% CI: [0.674, 1.781]Log Rank
Comparison: Comparison of the Asundexian 50 mg group versus Placebo groupp-value: =0.97890% CI: [0.614, 1.656]Log Rank
Primary

Safety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 5

Type 2: any overt, actionable sign of hemorrhage that doesn't fit the criteria for type 3 or 5 but meets at least one of the following criteria: 1) requires nonsurgical, med intervention by a HCP, 2) leads to hospital or rise in level of care, or 3) prompt eval. Type 3a: 1) overt bleed + Hg drop of 3 to \<5 g/dl (provided Hg drop is related to bleed); 2 any transfusion with overt bleed. Type 3b: 1) overt bleed + Hg drop ≥5 g/dL (provided Hg drop is related to bleed); 2) cardiac tamponade; 3) bleed requiring surgical intervention for control (exclude dental/nasal /skin/hemorrhoid); 4) bleed requiring IV vasoactive agents. Type 3c: 1) ICH hemorrhage (doesn't include microbleeds or HT, does include intraspinal); subcategories confirmed by autopsy or imaging or LP; 2) intraocular bleed compromising vision. Type 5: fatal bleed. Type 5a: probable fatal bleed; no autopsy or image confirmation but clinical suspicion. Type 5b: definite fatal bleed; overt bleed or autopsy or image confirmation.

Time frame: From baseline up to 52 weeks

Population: SAF

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgSafety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 530 Participants
Asundexian 20 mgSafety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 532 Participants
Asundexian 50 mgSafety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 542 Participants
PlaceboSafety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 536 Participants
Pooled AsundexianSafety - Number of Participants With BARC Bleeding Definition Type 2, 3 and 5104 Participants
Comparison: Comparison of the Pooled Asundexian group versus Placebo groupp-value: =0.915890% CI: [0.713, 1.347]Log Rank
Comparison: Comparison of the Asundexian 10 mg group versus Placebo groupp-value: =0.563390% CI: [0.577, 1.302]Log Rank
Comparison: Comparison of the Asundexian 20 mg group versus Placebo groupp-value: =0.58490% CI: [0.587, 1.306]Log Rank
Comparison: Comparison of the Asundexian 50 mg group versus Placebo groupp-value: =0.41790% CI: [0.828, 1.747]Log Rank
Secondary

Efficacy - Number of Participants With All Cause Mortality

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With All Cause Mortality10 Participants
Asundexian 20 mgEfficacy - Number of Participants With All Cause Mortality7 Participants
Asundexian 50 mgEfficacy - Number of Participants With All Cause Mortality10 Participants
PlaceboEfficacy - Number of Participants With All Cause Mortality7 Participants
Comparison: Comparison of the Asundexian 20 mg group and Asundexian 50 mg group versus Placebo groupp-value: =0.601690% CI: [0.603, 2.658]Log Rank
Comparison: Comparison of the Asundexian 20 mg group versus Placebo groupp-value: =0.994590% CI: [0.414, 2.401]Log Rank
Comparison: Comparison of the Asundexian 50 mg group versus Placebo groupp-value: =0.408590% CI: [0.667, 3.405]Log Rank
Secondary

Efficacy - Number of Participants With CV Death

CV death included death due to stroke, MI, heart failure or cardiogenic shock, sudden death or any other death due to other cardiovascular causes. Death due to non-traumatic hemorrhage was included.

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With CV Death7 Participants
Asundexian 20 mgEfficacy - Number of Participants With CV Death4 Participants
Asundexian 50 mgEfficacy - Number of Participants With CV Death5 Participants
PlaceboEfficacy - Number of Participants With CV Death2 Participants
Comparison: Comparison of the Asundexian 20 mg group and Asundexian 50 mg group versus Placebo group90% CI: [0.322, 5.05]
Comparison: Comparison of the Asundexian 50 mg group versus Placebo group90% CI: [0.479, 8.273]
Secondary

Efficacy - Number of Participants With MI

Acute MI was used when there was evidence of myocardial necrosis in a clinical setting consistent with acute myocardial ischemia. According to MI Universal Definition from 2018 the diagnosis of MI requires combination of: 1. Presence of acute myocardial injury. 2. Evidence of acute myocardial ischemia derived from the clinical presentation, electrocardiographic changes, or the results of myocardial or coronary artery imaging, or in case of post-mortem pathological findings irrespective of biomarker values.

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With MI18 Participants
Asundexian 20 mgEfficacy - Number of Participants With MI20 Participants
Asundexian 50 mgEfficacy - Number of Participants With MI18 Participants
PlaceboEfficacy - Number of Participants With MI17 Participants
Comparison: Comparison of the Asundexian 20 mg group and Asundexian 50 mg versus Placebo group90% CI: [0.696, 1.819]
Comparison: Comparison of the Asundexian 20 mg group versus Placebo group90% CI: [0.686, 2.031]
Comparison: Comparison of the Asundexian 50 mg group versus Placebo group90% CI: [0.613, 1.866]
Secondary

Efficacy - Number of Participants With Stent Thrombosis

ST was defined incorporating diagnostic certainty as well as timing: Definite ST: The highest level of certainty. Either angiographic or pathological confirmation of stent thrombosis. Probable ST: Regardless of the time after the index procedure, any MI that is related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation of stent thrombosis and in the absence of any other obvious cause

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With Stent Thrombosis4 Participants
Asundexian 20 mgEfficacy - Number of Participants With Stent Thrombosis5 Participants
Asundexian 50 mgEfficacy - Number of Participants With Stent Thrombosis4 Participants
PlaceboEfficacy - Number of Participants With Stent Thrombosis4 Participants
Secondary

Efficacy - Number of Participants With Stroke

Stroke was defined as an acute episode of focal or global neurological dysfunction caused by an injury of the brain, spinal cord, or retina as a result of hemorrhage or infarction.

Time frame: From baseline up to 52 weeks

Population: FAS

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgEfficacy - Number of Participants With Stroke4 Participants
Asundexian 20 mgEfficacy - Number of Participants With Stroke3 Participants
Asundexian 50 mgEfficacy - Number of Participants With Stroke0 Participants
PlaceboEfficacy - Number of Participants With Stroke2 Participants
Secondary

Safety - Number of Participants With All Bleeding

All bleeding events occurred from first intake of study intervention until 2 days after the last intake of study intervention

Time frame: From baseline up to 52 weeks

Population: SAF

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgSafety - Number of Participants With All Bleeding70 Participants
Asundexian 20 mgSafety - Number of Participants With All Bleeding75 Participants
Asundexian 50 mgSafety - Number of Participants With All Bleeding82 Participants
PlaceboSafety - Number of Participants With All Bleeding85 Participants
Secondary

Safety - Number of Participants With BARC Bleeding Definition Type 1,2,3,5

Type 1: bleeding that is not actionable and does not cause the patient to seek unscheduled performance of studies, hospitalization, or treatment by a healthcare professional; may include episodes leading to self-discontinuation of medical therapy by the patient without consulting a healthcare professional. For BARC bleeding definition 2,3 and 5, please refer to second primary endpoint.

Time frame: From baseline up to 52 weeks

Population: SAF

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgSafety - Number of Participants With BARC Bleeding Definition Type 1,2,3,570 Participants
Asundexian 20 mgSafety - Number of Participants With BARC Bleeding Definition Type 1,2,3,575 Participants
Asundexian 50 mgSafety - Number of Participants With BARC Bleeding Definition Type 1,2,3,582 Participants
PlaceboSafety - Number of Participants With BARC Bleeding Definition Type 1,2,3,585 Participants
Secondary

Safety - Number of Participants With BARC Bleeding Definition Type 3, 5

Type 3a: 1) overt bleed + Hg drop of 3 to \<5 g/dl (provided Hg drop is related to bleed); 2 any transfusion with overt bleed. Type 3b: 1) overt bleed + Hg drop ≥5 g/dL (provided Hg drop is related to bleed); 2) cardiac tamponade; 3) bleed requiring surgical intervention for control (exclude dental/nasal /skin/hemorrhoid); 4) bleed requiring IV vasoactive agents. Type 3c: 1) ICH hemorrhage (doesn't include microbleeds or HT, does include intraspinal); subcategories confirmed by autopsy or imaging or LP; 2) intraocular bleed compromising vision. Type 5: fatal bleed. Type 5a: probable fatal bleed; no autopsy or image confirmation but clinical suspicion. Type 5b: definite fatal bleed; overt bleed or autopsy or image confirmation.

Time frame: From baseline up to 52 weeks

Population: SAF

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Asundexian 10 mgSafety - Number of Participants With BARC Bleeding Definition Type 3, 55 Participants
Asundexian 20 mgSafety - Number of Participants With BARC Bleeding Definition Type 3, 53 Participants
Asundexian 50 mgSafety - Number of Participants With BARC Bleeding Definition Type 3, 53 Participants
PlaceboSafety - Number of Participants With BARC Bleeding Definition Type 3, 55 Participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026