Pexelizumab in Patients Undergoing Coronary Artery Bypass Grafting With Cardiopulmonary Bypass (PRIMO-CABG II)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00088179
Recruitment Status : Completed
First Posted : July 23, 2004
Last Update Posted : February 22, 2018
Procter and Gamble
Information provided by:
Alexion Pharmaceuticals

July 21, 2004
July 23, 2004
February 22, 2018
July 2004
October 2005   (Final data collection date for primary outcome measure)
  • Reduction in mortality.
  • Reduction in MI incidence.
Same as current
Complete list of historical versions of study NCT00088179 on Archive Site
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Pexelizumab in Patients Undergoing Coronary Artery Bypass Grafting With Cardiopulmonary Bypass (PRIMO-CABG II)
A Multicenter, Randomized, Double-Blind, Parallel-group, Placebo-Controlled Study of Pexelizumab in Patients Undergoing Coronary Artery Bypass Grafting With Cardiopulmonary Bypass (PRIMO-CABG II)
During a heart bypass procedure, a substance called "complement" is activated by the body. This "complement activation" causes an inflammatory response that can lead to side affects such as chest pain, heart attacks, stroke, heart failure, or death. The purpose of this study is to find out if the study drug (pexelizumab), that blocks "complement activation," can reduce such side effects and be given safely to patients requiring the bypass procedure with the use of the heart-lung machine.
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Phase 3
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Coronary Artery Disease
Drug: pexelizumab in conjunction with CABG
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Smith PK, Shernan SK, Chen JC, Carrier M, Verrier ED, Adams PX, Todaro TG, Muhlbaier LH, Levy JH; PRIMO-CABG II Investigators. Effects of C5 complement inhibitor pexelizumab on outcome in high-risk coronary artery bypass grafting: combined results from the PRIMO-CABG I and II trials. J Thorac Cardiovasc Surg. 2011 Jul;142(1):89-98. doi: 10.1016/j.jtcvs.2010.08.035. Epub 2010 Sep 28.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
October 2005
October 2005   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • be at least 18 years of age;
  • have 2 or more of the following risk factors:

    • diabetes mellitus; • repeat CABG; • the need for urgent intervention, defined according to the ACC/AHA guidelines as being patients who are required to stay in the hospital due to medical factors, but may be scheduled and operated on within a normal scheduling routine, excluding patients who have had an MI within 48 hours of CABG; • female; • history of a neurologic event (cerebrovascular accident, transient ischemic attack or carotid endarterectomy); • history of congestive heart failure (NYHA CHF Class III or IV); • history of 2 MIs, or an MI that occurred greater than 48 hours but less than 4 weeks prior to CABG;

  • provide Informed Consent.

Exclusion Criteria:

  • requires salvage intervention as defined by the ACC/AHA guidelines 10 as being ongoing cardiopulmonary resuscitation on the way to the operating room;
  • has current cardiogenic shock, acute left ventricular rupture, acute septal rupture or acute papillary muscle rupture;
  • has any active bacterial or other infection which is clinically significant, in the opinion of the Investigator (e.g. evaluate the evidence based on WBC, temperature, cultures etc. as appropriate for the patient);
  • has a known or suspected hereditary complement deficiency;
  • has participated in any other investigational drug study or was exposed to an investigational agent or device within 30 days of randomization;
  • is receiving, or is planning to receive, any other investigational drug or device, or will participate in any other research study within 30 days of randomization;
  • is pregnant or breast-feeding.
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
France,   Germany,   Netherlands,   United States
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Alexion Pharmaceuticals
Procter and Gamble
Study Director: Peter X Adams, MD Alexion Pharmaceuticals
Study Chair: Edward Verrier, MD University of Washington
Alexion Pharmaceuticals
February 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP