The safety, tolerability, pharmacokinetics, and pharmacodynamics of omecamtiv mecarbil have been studied across eleven Phase 1 clinical trials, which enrolled over 300 healthy subjects. In addition, seven Phase 2 clinical trials have enrolled more than 1,400 people with heart failure. Omecamtiv mecarbil is currently the subject of a Phase 3 clinical trials program. Recent trials include:
GALACTIC-HF (Global Approach to Lowering Adverse Cardiac Outcomes Through Improving Contractility in Heart Failure) –GALACTIC-HF was a Phase 3, double-blind, placebo-controlled, multicenter clinical trial conducted by Amgen in collaboration with Cytokinetics, and one of the largest Phase 3 global cardiovascular outcomes studies in heart failure ever conducted. The trial evaluated the effect of treatment with omecamtiv mecarbil compared with placebo in approximately 8,256 patients with chronic heart failure with reduced ejection fraction (HFrEF) who were at risk of hospitalization and death, despite being well treated on standard of care therapy. After a median duration of follow-up of 21.8 months, the trial demonstrated a statistically significant effect of treatment with omecamtiv mecarbil to reduce risk of the primary composite endpoint of cardiovascular (CV) death or heart failure events (heart failure hospitalization and other urgent treatment for heart failure) compared to placebo in patients treated with standard of care (hazard ratio, 0.92; 95% confidence interval, 0.89 to 0.99; p=0.0252). No reduction in the secondary endpoint of time to CV death was observed. Adverse events, including major ischemic cardiac events, were balanced between the treatment arms. These results were published in NEJM, available online here. For more information about this trial, click here.
METEORIC-HF (Multicenter Exercise Tolerance Evaluation of Omecamtiv Mecarbil Related to Increased Contractility in Heart Failure) – METEORIC-HF is a Phase 3, randomized, placebo-controlled, double-blind, parallel group, multicenter clinical trial designed to evaluate the effect of treatment with omecamtiv mecarbil compared to placebo on exercise capacity as determined by cardiopulmonary exercise testing (CPET) following 20 weeks of treatment. This trial is designed to enroll approximately 270 patients with HFrEF at sites throughout the U.S., Canada and Europe. For more information about this trial, click here.
COSMIC-HF (Chronic Oral Study of Myosin Activation to Increase Contractility in Heart Failure) – Cytokinetics and Amgen announced results from the expansion phase of COSMIC-HF (Chronic Oral Study of Myosin Activation to Increase Contractility in Heart Failure), a Phase 2 trial evaluating oral omecamtiv mecarbil in patients with chronic heart failure and left ventricular systolic dysfunction, at the American Heart Association Scientific Sessions in November 2015. COSMIC-HF was a double-blind, randomized, placebo-controlled, multicenter, dose escalation study designed to evaluate the pharmacokinetics and tolerability of orally-administered omecamtiv mecarbil in approximately 450 patients.
ATOMIC-AHF (Acute Treatment with Omecamtiv Mecarbil to Increase Contractility in Acute Heart Failure) – Cytokinetics and Amgen announced results from ATOMIC-AHF (A Trial of Omecamtiv Mecarbil to Increase Contractility in Acute Heart Failure), a Phase 2b trial evaluating omecamtiv mecarbil in acutely ill, hospitalized heart failure patients, at the European Society of Cardiology (ESC) Congress and the Heart Failure Society of America (HFSA) Annual Meeting, both in September 2013. This clinical trial was an international, multicenter, randomized, double-blind, placebo-controlled study in approximately 600 patients, enrolled in three sequential, ascending-dose cohorts. In each cohort, patients were randomized to receive omecamtiv mecarbil or placebo.