sentences:  As with the Cypher stent before it, the first trials of the Taxus stent revealed no evidence of in-stent restenosis at six months after the procedure, while later studies showed some restenosis, at a rate much lower than the bare metal counterpart.Based on these trials, the Taxus stent was approved for use in Europe in 2003.With further study, the FDA approved the use of the Taxus stent in the United States in March 2004.