Losmapimod is a new anti-inflammatory medication which potentially may benefit patients with Acute Coronary Syndrome, (ACS), a condition which includes heart attack. There is a growing understanding that the inflammatory response to ACS is integral to the subsequent evolution of plaque instability. Losmapimod inhibits p38 mitogen activated protein kinase (MAPK), an enzyme which may play a central role in inflammation in the setting of heart attack. Inhibition of p38 MAPK may stabilize atherosclerotic plaques, reduce the risk of subsequent plaque rupture, indirectly improve vascular function and prevent subsequent thrombosis, and thus reduce infarct size and the risk of subsequent cardiac events. This study will test whether losmapimod can safely reduce the risk of a subsequent cardiovascular event (such as death, heart attack, or near heart attack requiring urgent treatment ) when started immediately after ACS (specifically, heart attack). Patients who present with heart attack and qualify for the study will be randomly assigned to receive 3 months treatment with either losmapimod twice daily or placebo, which will be administered in addition to the usual standard of care therapies for heart attack. Following the in-hospital period, subjects will return for outpatient visits at 4 and 12 weeks, as well as a follow up visit at 24 weeks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
3,503
Subjects will receive Losmapimod 7.5 mg as film-coated, round, plain faced tablets.
Subjects will receive placebo as film-coated, round, plain faced tablets.
Subjects will receive standard therapy consistent with the appropriate guidelines from professional societies. The standard therapy includes nitrates, morphine sulfate, beta adrenergic blockers, renin-angiotensin aldosterone inhibitors, other anti-ischemic therapies, and analgesic therapy.
GSK Investigational Site
Huntsville, Alabama, United States
GSK Investigational Site
Cottonwood, Arizona, United States
GSK Investigational Site
Tucson, Arizona, United States
GSK Investigational Site
Tucson, Arizona, United States
GSK Investigational Site
Jonesboro, Arkansas, United States
Number of Participants With First Occurrence of Major Adverse Cardiovascular Events (MACE) Through Week 12
The primary efficacy endpoint is the composite measure of adjudicated MACE that includes the time to first occurrence of CV death (death due to a cardiovascular cause), MI or SRI-UR (Severe Recurrent Ischemia requiring Urgent coronary artery Revascularization). Death for which the Clinical Events Committee (CEC) or investigator were unable to establish cause were analyzed as CV deaths.
Time frame: Up to 12 weeks
Number of Participants With First Occurrence of MACE Through Week 24
Number of participants with first occurrence of MACE through Week 24 including CV death, MI or SRI-UR are presented. Death for which the CEC or investigator were unable to establish cause were analyzed as CV deaths.
Time frame: Up to Week 24
Number of Participants With First Occurrence of the Composite of CV Death or MI up to Week 12 and Week 24
Week 12 results are considered the principal secondary endpoint. Number of participants with first occurrence of the composite of CV death or MI up to Week 12 and Week 24 are summarized.
Time frame: Week 12 and Week 24
Number of Participants With First Occurrence of the Composite of CV Death, MI or Hospitalization for Heart Failure (HF) up to Week 12 and Week 24.
Number of participants with first occurrence of the composite of CV death, MI or hospitalization for HF up to Week 12 and Week 24 are presented.
Time frame: Week 12 and Week 24
Number of Participants With First Occurrence of the Expanded Composite of Arterial CV Events Defined as CV Death, MI, SRI-UR or Stroke Through to Week 12 and Week 24
Number of participants with first occurrence of the expanded composite of arterial CV events defined as CV death, MI, SRI-UR or stroke through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of Coronary Events Defined as CHD Death, MI, SRI-UR or Any Unplanned Coronary Artery Revascularization Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of coronary events defined as coronary heart disease (CHD) death, MI, SRI-UR or any unplanned coronary artery revascularization through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CV Death or Hospitalization for HF Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CV death or hospitalization for HF through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CV Death, MI or Stroke Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CV death, MI or stroke through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Expanded Composite of CV Death, MI, SRI-UR, Stroke or Hospitalization for HF Through to Week 12 and Week 24
Number of participants with first occurrence of the expanded composite of CV death, MI, SRI-UR, stroke or hospitalization for HF through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CHD Death, MI or SRI-UR Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CHD death, MI or SRI-UR through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CHD Death or MI Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CHD death or MI through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of All-cause Death, MI or SRI-UR Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of all-cause death, MI or SRI-UR through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of All-cause Death or MI Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of all-cause death or MI through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CV Death, Type I (Spontaneous) MI or SRI-UR Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CV death, type I (spontaneous) MI or SRI-UR through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of the Composite of CV Death or Type I (Spontaneous) MI Through to Week 12 and Week 24
Number of participants with first occurrence of the composite of CV death or type I (spontaneous) MI through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Definite or Probable Stent Thrombosis Through to Week 12 and Week 24
Number of participants with first occurrence of definite or probable stent thrombosis through to Week 12 and Week 24 are presented. Participants receiving stent prior to randomization or during the study prior to Week 12 were included.
Time frame: Week 12, Week 24
Number of Participants Re-hospitalized Within 30 Days of Discharge
Participants who had a death or re-hospitalization within 30 days of discharge, plus participants who were never discharged from the initial hospitalization were included.
Time frame: Within up to 30 days of post discharge
Number of Participants With All-cause Mortality Through to Week 12 and Week 24
Number of participants with all-cause mortality through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With CV Death Events Through to Week 12 and Week 24
Number of participants with CV death events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With CHD Death Events Through to Week 12 and Week 24
Number of participants with CHD death events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Myocardial Infarction (Fatal and Non-fatal) Events Through to Week 12 and Week 24
Number of participants with first occurrence of myocardial infarction (fatal and non-fatal) events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Type I (Spontaneous) MI Events Through to Week 12 and Week 24
Number of participants with first occurrence of type I (spontaneous) MI events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of SRI-UR Events Through to Week 12 and Week 24
Number of participants with first occurrence of SRI-UR events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Stroke (Fatal and Non-fatal) Events Through to Week 12 and Week 24
Number of participants with first occurrence of stroke (fatal and non-fatal) events through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Hospitalization for HF Through to Week 12 and Week 24
Number of participants with first occurrence of hospitalization for HF through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
Number of Participants With First Occurrence of Any Unplanned Coronary Revascularization Through to Week 12 and Week 24
Number of participants with first occurrence of any unplanned coronary revascularization through to Week 12 and Week 24 are presented.
Time frame: Week 12, Week 24
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GSK Investigational Site
Little Rock, Arkansas, United States
GSK Investigational Site
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