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Rofecoxib and cardiovascular adverse events in adjuvant treatment of colorectal cancer
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VICTOR Trial Grp (Including: Kerr, David J., Dunn, Janet A., Langman, Michael J., Smith, Justine L., Midgley, Rachel S. J., Stanley, Andrew, Stokes, Joanne C., Julier, Patrick, Iveson, Claire, Duvvuri, Ravi and McConkey, Christopher C.). (2007) Rofecoxib and cardiovascular adverse events in adjuvant treatment of colorectal cancer. New England Journal Of Medicine , Vol.357 (No.4). pp. 360-369. doi:10.1056/NEJMoa071841 ISSN 0028-4793.
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Official URL: http://dx.doi.org/10.1056/NEJMoa071841
Abstract
Background: Selective cyclooxygenase inhibitors may retard the progression of cancer, but they have enhanced thrombotic potential. We report on cardiovascular adverse events in patients receiving rofecoxib to reduce rates of recurrence of colorectal cancer.
Methods: All serious adverse events that were cardiovascular thrombotic events were reviewed in 2434 patients with stage II or III colorectal cancer participating in a randomized, placebo-controlled trial of rofecoxib, 25 mg daily, started after potentially curative tumor resection and chemotherapy or radiotherapy as indicated. The trial was terminated prematurely owing to worldwide withdrawal of rofecoxib. To examine possible persistent risks, we examined cardiovascular thrombotic events reported up to 24 months after the trial was closed.
Results: The median duration of active treatment was 7.4 months. The 1167 patients receiving rofecoxib and the 1160 patients receiving placebo were well matched, with a median follow-up period of 33.0 months (interquartile range, 27.6 to 40.1) and 33.4 months (27.7 to 40.4), respectively. Of the 23 confirmed cardiovascular thrombotic events, 16 occurred in the rofecoxib group during or within 14 days after the treatment period, with an estimated relative risk of 2.66 (from the Cox proportional-hazards model; 95% confidence interval [CI], 1.03 to 6.86; P=0.04). Analysis of the Antiplatelet Trialists' Collaboration end point (the combined incidence of death from cardiovascular, hemorrhagic, and unknown causes; of nonfatal myocardial infarction; and of nonfatal ischemic and hemorrhagic stroke) gave an unadjusted relative risk of 1.60 (95% CI, 0.57 to 4.51; P=0.37). Fourteen more cardiovascular thrombotic events, six in the rofecoxib group, were reported within the 2 years after trial closure, with an overall unadjusted relative risk of 1.50 (95% CI, 0.76 to 2.94; P=0.24). Four patients in the rofecoxib group and two in the placebo group died from thrombotic causes during or within 14 days after the treatment period, and during the follow-up period, one patient in the rofecoxib group and five patients in the placebo group died from cardiovascular causes.
Conclusions: Rofecoxib therapy was associated with an increased frequency of adverse cardiovascular events among patients with a median study treatment of 7.4 months' duration.
Item Type: | Journal Article | ||||
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Subjects: | R Medicine | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School | ||||
Journal or Publication Title: | New England Journal Of Medicine | ||||
Publisher: | Massachusetts Medical Society | ||||
ISSN: | 0028-4793 | ||||
Official Date: | 26 July 2007 | ||||
Dates: |
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Volume: | Vol.357 | ||||
Number: | No.4 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 360-369 | ||||
DOI: | 10.1056/NEJMoa071841 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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