BAY81-8781, I.V. Aspirin in the Indication of Acute Coronary Syndrome (ACS) (ACUTE)

This study has been completed.
Information provided by (Responsible Party):
Bayer Identifier:
First received: May 28, 2009
Last updated: June 18, 2014
Last verified: June 2014

The objective of this study is to investigate whether intravenous administration (injected into a vein) of acetylsalicylic acid (Aspirin) in doses of 250 and 500 mg is superior to oral treatment of ACS with tablets containing 300 mg of Aspirin.

Condition Intervention Phase
Acute Coronary Syndrome
Drug: Acetylsalicylic acid (Aspirin, BAY 81-8781)
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Prospective, Randomized, Verum Controlled, Open Label, Parallel Group Multi-center Phase III Clinical Trial to Demonstrate the Superiority of 500 or 250 mg Aspirin® i.v. (BAY 81-8781) Treatment Versus 300 mg Aspirin® N Tablets p.o. (BAY e4465A) in Patients With Acute Coronary Syndrome, Measured by Time Dependent Thromboxane Inhibition

Resource links provided by NLM:

Further study details as provided by Bayer:

Primary Outcome Measures:
  • The primary efficacy variable will be the TXB2 (Thromboxane B2) concentration at 5 minutes after study drug administration. [ Time Frame: Baseline and at 5 minutes after treatment ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • TXB2 (Thromboxane B2) values at 20 minutes [ Time Frame: At 20 minutes after treatment ] [ Designated as safety issue: No ]
  • Platelet aggregation inhibition [ Time Frame: Baseline and at 5 and 20 minutes after treatment ] [ Designated as safety issue: No ]
  • Serum prostacyclin levels [ Time Frame: Baseline and at 5 and 20 minutes after treatment ] [ Designated as safety issue: No ]
  • Incidence of post randomization deaths from all causes, cardiovascular deaths, myocardial re/infarctions and ischemic strokes [ Time Frame: 24 hours,7 days,30 days after treatment ] [ Designated as safety issue: No ]
  • Safety laboratory examinations, vital signs, physical examination, ECG, adverse events collection [ Time Frame: Day1 and Day 2 ] [ Designated as safety issue: Yes ]
  • Incidence of all post randomization strokes of unknown etiology [ Time Frame: 24 hours and 7 days after treatment ] [ Designated as safety issue: Yes ]
  • Incidence of all post randomization bleedings assessed according to the TIMI (thrombolysis in myocardial infarction) classification including hemorrhagic stroke [ Time Frame: 24 hours and 7 days after treatment ] [ Designated as safety issue: Yes ]
  • Hospital mortality during the hospitalization for ACS (Acute Coronary Syndrome) [ Time Frame: whole study period ] [ Designated as safety issue: Yes ]

Enrollment: 270
Study Start Date: March 2011
Study Completion Date: June 2014
Primary Completion Date: April 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Arm 1 Drug: Acetylsalicylic acid (Aspirin, BAY 81-8781)
300 mg Aspirin N tablets p.o.
Experimental: Arm 2 Drug: Acetylsalicylic acid (Aspirin, BAY 81-8781)
250 mg Aspirin i.v.
Experimental: Arm 3 Drug: Acetylsalicylic acid (Aspirin, BAY 81-8781)
500 mg Aspirin i.v.

Detailed Description:

In November 2009 it was the company's decision to cancel this study as an international trial. However, to support the local MA application of Aspirin i.v. for the indication "For the initial treatment in case of suspicion of acute coronary syndrome", Bayer decided to perform this trial in Germany as a domestic trial, with changed number of participants and study dates.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Angina pectoris lasting for more than 20 minutes within the last 24 hours before study drug treatment (or equivalent acute symptoms such as increasing dyspnea, diaphoresis, nausea, abdominal/epigastric pain, syncope etc.)
  • ECG change suggestive for ischemia:
  • ST elevation or T-wave change or ST depression, new or presumed left bundle-branch block (LBBB)
  • Elevated troponin T level > 0.01 ng/ml, levels according to local laboratory reference values
  • Risk factors for ACS such as known coronary artery disease (CAD), diabetes mellitus, impaired renal function, peripheral artery or cerebrovascular disease, current smoking.

Exclusion Criteria:

  • Treatment with acetylsalicylic acid (ASA) within 48 hours prior to study drug treatment
  • Treatment with glycoprotein IIa/IIIb inhibitors within 48 hours prior to study drug treatment and before the 20 minutes blood samples for thromboxane, prostacycline and platelet aggregation measurement have been taken
  • Thrombolytic therapy within 24 hours before study drug treatment
  • Obligation for tracheal intubation and mechanical ventilation
  • Contraindications to ASA treatment
  • Known haemorrhagic diathesis
  • Evidence of an active gastrointestinal or urogenital bleeding
  • Stroke within 3 months prior to study drug treatment
  • Major surgery including coronary artery bypass graft (CABG) within 6 weeks prior to study drug treatment
  • Known severe hepatic or renal insufficiency
  • Pregnant or breast-feeding women
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00910065

  Show 37 Study Locations
Sponsors and Collaborators
Study Director: Bayer Study Director Bayer
  More Information

Additional Information:
No publications provided

Responsible Party: Bayer Identifier: NCT00910065     History of Changes
Other Study ID Numbers: 12946, 2007-005163-94
Study First Received: May 28, 2009
Last Updated: June 18, 2014
Health Authority: Germany: Federal Institute for Drugs and Medical Devices

Keywords provided by Bayer:
Acute Coronary Syndrome

Additional relevant MeSH terms:
Acute Coronary Syndrome
Angina Pectoris
Cardiovascular Diseases
Chest Pain
Heart Diseases
Myocardial Ischemia
Signs and Symptoms
Vascular Diseases
Analgesics, Non-Narcotic
Anti-Inflammatory Agents
Anti-Inflammatory Agents, Non-Steroidal
Antirheumatic Agents
Cardiovascular Agents
Central Nervous System Agents
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Fibrin Modulating Agents
Fibrinolytic Agents
Hematologic Agents
Molecular Mechanisms of Pharmacological Action
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Platelet Aggregation Inhibitors
Sensory System Agents
Therapeutic Uses processed this record on March 26, 2015