SAN FRANCISCO – Abbott Laboratories expects that its self-expanding transcatheter aortic valve replacement (TAVR) system Portico will be able to become a top competitive product. A pivotal trial of Portico has found that the implant is noninferior to current FDA-approved TAVR systems that are marketed in the U.S. The results from the 750-patient, randomized trial were presented here last week at the Transcatheter Cardiovascular Therapeutics (TCT) conference.