Stratos LV/LV-T Technical Manual 49

The freedom from Stratos LV system-related and procedure- related complications was 87.2% with a one sided lower 95% confidence bound of 82.09%. Therefore, the null hypothesis was rejected, and it was concluded that the complication-free rate at 6 months is equivalent to 85% within 10% and the primary safety endpoint was met (p = 0.0002)*.

1.7.4Tupos LV/ATx Clinical IDE Study - OPTION CRT/ATx

The CRT functionality of the Stratos CRT-P devices is based on the FDA approved Tupos LV/ATx. Therefore, the data from the OPTION CRT/ATx study supports the effectiveness of CRT. The OPTION CRT/ATx study was conducted on the Tupos LV/ATx, a device that delivers CRT but, in addition, also offers defibrillation therapy (CRT-D).

Study Design

The purpose of the prospective, randomized, multi-center OPTION CRT/ATx study was to demonstrate the safety and effectiveness of the investigational Tupos LV/ATx Cardiac Resynchronization Therapy Defibrillator (CRT-D) in patients with congestive heart failure (CHF) and atrial tachyarrhythmias. Patients in the study group were implanted with a BIOTRONIK Tupos LV/ATx. Patients in the control group were implanted with any legally marketed CRT-D. Patients in both the study and control groups were implanted with a legally marketed left ventricular lead.

*p value is provided for informational purposes to show trends only; clinical significance is not indicated by p values for analyses that were not prespecified.