Bellerophon Therapeutics LLC announced that it has completed enrollment of its PRESERVATION I clinical trial of Bioabsorbable Cardiac Matrix (BCM), an investigational implantable medical device being studied for the prevention of congestive heart failure following an acute myocardial infarction (AMI). The procedure has been completed in 303 patients at almost 90 clinical sites in Australia, Europe, Israel and North America. The company expects to report top line results in mid-2015, following a six-month follow-up period for all patients.