Between June 1999 and April 2001 in
99 centers in the United States and
Canada, 2116 patients who were to undergo
a planned PCI or were deemed
at high likelihood to undergo PCI were
enrolled into the study (FIGURE 1).
Baseline demographics in the 2 treatment
groups were well matched, although
there was less use of statins and
calcium channel blockers in the clopidogrel
arm (TABLE 1). By design, the
majority of patients enrolled underwent
PCI following initial angiogram—
86% in both groups