A Phase 3 Clinical Outcomes Study to Compare the Incidence of Major Adverse Cardiovascular Events in Subjects Presenting With Acute Coronary Syndrome Treated With Losmapimod Compared to Placebo (LATITUDE-TIMI 60)

Summary

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.

Timeline

Start

2014-06-03

Primary completion

2015-12-14

Completion

2015-12-14

Publications

• Cavender MA, O'Donoghue ML, Abbate A, Aylward P, Fox KA, Glaser RX, Park JG, Lopez-Sendon J, Steg PG, Sabatine MS, Morrow DA. Inhibition of p38 MAP kinase in patients with ST-elevation myocardial infarction - findings from the LATITUDE-TIMI 60 trial. Am Heart J. 2022 Jan;243:147-157. doi: 10.1016/j.ahj.2021.08.022. Epub 2021 Sep 8.
• O'Donoghue ML, Glaser R, Cavender MA, Aylward PE, Bonaca MP, Budaj A, Davies RY, Dellborg M, Fox KA, Gutierrez JA, Hamm C, Kiss RG, Kovar F, Kuder JF, Im KA, Lepore JJ, Lopez-Sendon JL, Ophuis TO, Parkhomenko A, Shannon JB, Spinar J, Tanguay JF, Ruda M, Steg PG, Theroux P, Wiviott SD, Laws I, Sabatine MS, Morrow DA; LATITUDE-TIMI 60 Investigators. Effect of Losmapimod on Cardiovascular Outcomes in Patients Hospitalized With Acute Myocardial Infarction: A Randomized Clinical Trial. JAMA. 2016 Apr 19;315(15):1591-9. doi: 10.1001/jama.2016.3609.
• O'Donoghue ML, Glaser R, Aylward PE, Cavender MA, Crisp A, Fox KA, Laws I, Lopez-Sendon JL, Steg PG, Theroux P, Sabatine MS, Morrow DA. Rationale and design of the LosmApimod To Inhibit p38 MAP kinase as a TherapeUtic target and moDify outcomes after an acute coronary syndromE trial. Am Heart J. 2015 May;169(5):622-630.e6. doi: 10.1016/j.ahj.2015.02.012. Epub 2015 Feb 23.

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