In December 2008, Thoratec received approval from the FDA to end randomization in the trial, based on a pre-specified interim analysis of 67 percent of the first 200 patients that showed that patients implanted with the HeartMate II achieved statistically superior outcomes versus those in the control group who were implanted with the HeartMate XVE. Based on that analysis, the study's Data Safety Monitoring Board concurred with Thoratec's recommendation to eliminate randomization for patients enrolled in the trial under FDA-approved CAPs.
Patients in the trial were randomized to the HeartMate II or the HeartMate XVE -- currently the only device approved for DT -- on a 2-1 basis, respectively. The primary endpoint at two years is survival while remaining free from stroke and the need for reoperation for pump repair or replacement. Secondary endpoints included adverse events, functional status, hospitalization, assessment of neuro-cognitive function and patient quality of life.
"The data from the trial demonstrate that the HeartMate II is superior to the XVE, based on device performance and the primary patient outcome of two-year survival free from stroke and reoperation for device replacement. The data also showed that key adverse events, such as infection, sepsis and right heart failure, were significantly lower for the HeartMate II versus the XVE. As a result, this submission seeking FDA approval for Destination Therapy is an important milestone in Thoratec's mission to bring breakthrough therapies and new hope to the thousands of patients and their families suffering from advanced heart failure, as well as the clinicians who work tirelessly to treat them," Burbach said.
"The commercial experience of the HeartMate II for BTT
|SOURCE Thoratec Corporation|
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