Cost Effectiveness of Paclitaxel-Eluting Stents for Patients Undergoing Percutaneous Coronary Revascularization
Results From the TAXUS-IV Trial
Ameet Bakhai, MD, MRCP*, ,
Gregg W. Stone, MD ,
Elizabeth Mahoney, ScD*,
Tara A. Lavelle, BA*,
Chunxue Shi, MS*,
Ronna H. Berezin, MPH*,
Betsy J. Lahue, MPH ,
Mary Ann Clark, MHA ,
Michael J. Lacey, MS ,
Mary E. Russell, MD ,
Stephen G. Ellis, MD||,
James B. Hermiller, MD¶,
David A. Cox, MD#,
David J. Cohen, MD, MSc*,**,* on behalf of the TAXUS-IV Investigators
* Harvard Clinical Research Institute, Boston, Massachusetts
Barnet and Chase Farm NHS Trust, Barnet, England
Columbia Presbyterian Hospital, New York, New York
Health Economics and Outcomes Research, Boston Scientific, Natick, Massachusetts
|| Cleveland Clinic Foundation, Cleveland, Ohio
¶ St. Vincent's Hospital, Indianapolis, Indiana
# Mid Carolina Cardiology, Charlotte, North Carolina
** Division of Cardiology, Beth IsraelDeaconess Medical Center, Boston, Massachusetts

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Figure 1 Cumulative follow-up costs for the paclitaxel and control stent groups for the overall trial population (A) and the subgroup assigned to clinical follow-up alone (B). Mean cost differences at 6, 9, and 12 months are indicated in the boxes.
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Figure 2 Cumulative distribution plot of the incremental cost-effectiveness ratio for paclitaxel-eluting stent compared with bare-metal stent based on bootstrap analysis of the primary TAXUS-IV trial results among the overall study population (A) and the subgroup assigned to clinical follow-up alone (B). As indicated by the arrow, 86% of the resulting cost-effectiveness ratios were <$10,000 per target vessel revascularization event avoided for the overall population, and 90% were less than this threshold for the clinical follow-up cohort.
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Figure 3 Subgroup analyses of rates of target vessel revascularization (TVR) and 1-year medical care cost differences between the paclitaxel and control stent groups along with the associated cost-effectiveness ratios for paclitaxel-eluting stent (PES) versus bare-metal stent implantation. Dominant indicates those subgroups for which PES implantation was economically dominant (i.e., lower overall costs and better clinical outcomes). LAD = left anterior descending coronary artery.
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