Study of Apixaban for the Prevention of Thrombosis-related Events Following Knee Replacement Surgery

This study has been completed.
Information provided by (Responsible Party):
Bristol-Myers Squibb Identifier:
First received: August 30, 2006
Last updated: August 28, 2014
Last verified: August 2009
The purpose of this study is to learn if apixaban can prevent blood clots in the leg (deep vein Thrombosis [DVT]) and lung (pulmonary embolism [PE]) that sometimes occur after knee replacement surgery and to learn how apixaban compares to enoxaparin (Lovenox®) for preventing these clots. The safety of apixaban will also be studied.

Condition Intervention Phase
Deep Vein Thrombosis
Pulmonary Embolism
Drug: Enoxaparin + Placebo
Drug: Apixaban + Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Prevention
Official Title: A Phase 3 Randomized, Double-Blind Active-Controlled (Enoxaparin), Parallel-Group, Multi-Center Study to Evaluate the Safety and Efficacy of Oral Apixaban in Subjects Undergoing Elective Total Knee Replacement Surgery

Resource links provided by NLM:

Further study details as provided by Bristol-Myers Squibb:

Primary Outcome Measures:
  • A combination of asymptomatic and symptomatic DVT, non-fatal PE and all-cause death [ Time Frame: after 12 days of treatment ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • The following combined endpoints: [ Time Frame: after 12 days of treatment ]
  • Proximal DVT, non-fatal PE, and all-cause death [ Time Frame: after 12 days of treatment ] [ Designated as safety issue: No ]
  • Symptomatic DVT, non-fatal and fatal PE [ Time Frame: after 12 days of treatment ] [ Designated as safety issue: No ]
  • Major and non-major bleeding events [ Time Frame: after 12 days of treatment ] [ Designated as safety issue: Yes ]
  • Myocardial infarction and stroke [ Time Frame: after 12 days of treatment ] [ Designated as safety issue: Yes ]

Enrollment: 3202
Study Start Date: November 2006
Study Completion Date: May 2008
Primary Completion Date: May 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: A1
+ placebo
Drug: Enoxaparin + Placebo
Syringes + tablets, Subcutaneous + Oral, 30mg, twice daily, 12 day treatment period
Other Name: Lovenox®
Experimental: A2
+ placebo
Drug: Apixaban + Placebo
Tablet + Syringes, Oral + subcutaneous, 2.5 mg, twice daily, 12 day treatment period


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Men and non-pregnant, non-breastfeeding women
  • 18 years or older
  • Scheduled for knee replacement surgery

Exclusion Criteria:

  • hereditary or acquired bleeding disorders
  • clotting disorders
  • bleeding or high risk for bleeding
  • drugs that affect bleeding or coagulation
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00371683

  Show 107 Study Locations
Sponsors and Collaborators
Bristol-Myers Squibb
Study Director: Bristol-Myers Squibb Bristol-Myers Squibb
  More Information

Additional Information:
No publications provided by Bristol-Myers Squibb

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Bristol-Myers Squibb Identifier: NCT00371683     History of Changes
Other Study ID Numbers: CV185-034
Study First Received: August 30, 2006
Last Updated: August 28, 2014
Health Authority: United States: Food and Drug Administration

Keywords provided by Bristol-Myers Squibb:
Prevention of deep vein thrombosis and pulmonary embolism after total knee replacement surgery

Additional relevant MeSH terms:
Pulmonary Embolism
Venous Thrombosis
Cardiovascular Diseases
Embolism and Thrombosis
Lung Diseases
Respiratory Tract Diseases
Vascular Diseases processed this record on November 30, 2015