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Clinical Trial Summary

Prospective, randomized, non-inferiority, multicenter, international study.In total 4000 patients (70 centers in Europe) with de novo lesions in native coronary arteries who meet the eligibility criteria randomized to 6 versus 12 month dual antiplatelet therapies following a second generation DES implantation.

Assuming that the true proportion of thrombotic events is equal to 2.3% for both regimens (6-month and 12-month clopidogrel) 2000 patients for each treatment group are necessary to demonstrate a non-inferiority of the 6-months regimen if the proportion of thrombotic events will be no more than 3.5% with a power of 0.80 and a significance level of 0.05 (one-tail).

If the non-inferiority hypothesis will be rejected, the superiority hypothesis (12-months regimen is superior to the 6-months-regimen) will be tested at a significance level of 0.05 (two-tails).

The maximal not clinically relevant difference for the non-inferiority hypothesis of 1.2 % more thrombotic events has to be considered together with the lower expected number of bleeding events in the 6-months regimen.

All the analysis will be done as "intention-to-treat" analysis.


Clinical Trial Description

n/a


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00944333
Study type Interventional
Source Fondazione Mediolanum per Attività e Ricerche Cardiovascolari Onlus
Contact
Status Terminated
Phase Phase 3
Start date July 2009
Completion date July 2014

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