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Lincoff, A.M. et al.

Lincoff, Kleiman, Kottke-Marchant, Maierson, Maresh, Wolski, Topol,

Bivalirudin with planned or provisional abciximab versus low-dose heparin and abciximab during percutaneous coronary revascularization: results of the Comparison of Abciximab Complications with Hirulog for Ischemic Events Trial (CACHET).

BACKGROUND: The direct thrombin inhibitor bivalirudin has previously been associated with better efficacy and lower hemorrhage risk than heparin during balloon angioplasty. This agent has not yet been tested with stenting or in combination with platelet glycoprotein IIb/IIIa antagonists. METHODS AND RESULTS: In a pilot trial, 268 patients who underwent coronary intervention were randomized in 3 sequential phases to treatment with bivalirudin (with or without abciximab) or the control regimen of low-dose weight-adjusted heparin with abciximab. Patients in the bivalirudin arms received bivalirudin (1.0 mg/kg bolus, infusion of 2.5 mg/kg/h for 4 hours) plus abciximab in phase A, bivalirudin (0.5 mg/kg bolus, infusion of 1.75 mg/kg/h for the procedure duration) plus provisional ("rescue") abciximab in phase B, or bivalirudin (0.75 mg/kg bolus, infusion of 1.75 mg/kg/h for the procedure duration) plus provisional abciximab in phase C. Abciximab was necessitated on a provisional basis in 24% of the patients in the bivalirudin arms of phases B and C. A composite clinical endpoint of death, myocardial infarction, repeat revascularization, or major bleeding by 7 days occurred in 3.3%, 5.9%, 0, and 10.6% of the patients in the bivalirudin phase A, bivalirudin phase B, bivalirudin phase C, and heparin plus planned abciximab arms, respectively (P =.018 for the pooled bivalirudin groups versus the heparin group). CONCLUSION: Bivalirudin with planned or provisional abciximab may be at least as safe and effective as low-dose heparin plus abciximab during percutaneous coronary intervention.[1]

References

Bivalirudin with planned or provisional abciximab versus low-dose heparin and abciximab during percutaneous coronary revascularization: results of the Comparison of Abciximab Complications with Hirulog for Ischemic Events Trial (CACHET). Lincoff, A.M., Kleiman, N.S., Kottke-Marchant, K., Maierson, E.S., Maresh, K., Wolski, K.E., Topol, E.J. Am. Heart J. (2002) [Pubmed]

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