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Study Results
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To Evaluate Ezetimibe Plus Atorvastatin Versus Atorvastatin in Patients With High Cholesterol Not Controlled on Atorvastatin 20 mg.
This study has been completed.
Study NCT00276458   Information provided by Merck
First Received: January 10, 2006   Last Updated: May 14, 2009   History of Changes
Study Type: Interventional
Study Design: Randomized, Double Blind (Subject, Investigator), Active Control, Parallel Assignment
Condition: Hypercholesterolemia
Interventions: Drug: Comparator: atorvastatin
Drug: Comparator: Placebo
Drug: Comparator: ezetimibe
Drug: Comparator: Placebo.

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Phase III First Patient In: 4/5/2006; Last Patient Last Visit 1/17/2008 72 centers worldwide (US, Canada, Austria, Costa Rica) Eligible patients include those on a stable dose of atorvastatin 20 mg; or patients with adjusted LDL-C pre-screen ranges who were treated with other lipid modifying therapy, or were statin and/or ezetimibe naïve.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment

Patients received and were blinded to atorvastatin 20 mg for a 4/5- week run-in period.

Patients needed an LDL-C ≥ 100 mg/dL and ≤ 160 mg/dL at Visit 2 (week -1). Eligible patients were randomized at Visit 3 (Week 0) to either atorvastatin 40 mg or addition of ezetimibe 10 mg to their 20 mg dose of atorvastatin for a 6-week treatment period.


Reporting Groups
  Description
Atorvastatin + Ezetimibe Atorvastatin 20 mg + Ezetemibe 10 mg daily for 6 weeks
Atorvastatin Atorvastatin 40 mg Daily for 6 weeks

Participant Flow:   Overall Study
  Atorvastatin + Ezetimibe Atorvastatin
STARTED   98     98  
COMPLETED   92     91  
NOT COMPLETED   6     7  
      Adverse Event               0                 2  
      Lost to Follow-up               2                 2  
      Protocol Violation               4                 3  



  Baseline Characteristics
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Reporting Groups
  Description
Atorvastatin + Ezetimibe Atorvastatin 20 mg + Ezetemibe 10 mg daily for 6 weeks
Atorvastatin Atorvastatin 40 mg Daily for 6 weeks

Baseline Measures
  Atorvastatin + Ezetimibe Atorvastatin Total
Number of Participants  
[units: participants]
98 98 196
Age  
[units: years]
Mean ( Full Range )
56.4
( 24 to 78 )
58.0
( 34 to 76 )
57.2
( 24 to 78 )
Gender  
[units: participants]
     
Female 40 49 89
Male 58 49 107
Race/Ethnicity, Customized  
[units: participants]
     
White 58 60 118
American Indian or Alaska Native 1 0 1
Asian 7 8 15
Black 3 9 12
Multi-Racial 29 21 50
Apolipoprotein A-I  
[units: mg/dL]
Mean ± Standard Deviation
161.8 ± 25.2 163.4 ± 24.6 162.6 ± 24.8
Apolipoprotein A-I:Apolipoprotein B ratio  
[units: Ratio]
Mean ± Standard Deviation
0.8 ± 0.2 0.7 ± 0.2 0.8 ± 0.2
Apolipoprotein B  
[units: mg/dL]
Mean ± Standard Deviation
122.9 ± 22.4 119.9 ± 21.0 121.4 ± 21.7
C Reactive Protein  
[units: mg/dL]
Mean ± Standard Deviation
1.6 ± 2.6 1.2 ± 1.7 1.5 ± 2.1
High Density Lipoprotein (HDL)  
[units: mg/dL]
Mean ± Standard Deviation
51.1 ± 12.1 51.7 ± 11.5 51.4 ± 11.8
Low Density Lipoprotein (LDL)  
[units: mg/dL]
Mean ± Standard Deviation
119.9 ± 19.4 117.9 ± 16.8 118.9 ± 18.1
Low Density Lipoprotein Cholesterol (LDL-C):High Density Lipoprotein Cholesterol (HDL-C) ratio  
[units: Ratio]
Mean ± Standard Deviation
2.4 ± 0.6 2.5 ± 0.7 2.4 ± 0.7
Non- High Density Lipoprotein (Non-HDL) Cholesterol  
[units: mg/dL]
Mean ± Standard Deviation
151.6 ± 24.1 148.4 ± 21.1 150.0 ± 22.7
NonHigh Density Lipoprotein-Cholesterol (NonHDL-C):High Density Lipoprotein-Cholesterol (HDL-C)ratio  
[units: Ratio]
Mean ± Standard Deviation
3.2 ± 1.0 3.0 ± 0.9 3.1 ± 1.0
Total Cholesterol  
[units: mg/dL]
Mean ± Standard Deviation
202.6 ± 25.2 200.0 ± 21.5 201.3 ± 23.4
Total cholesterol:High Density Lipoprotein Cholesterol (HDL-C) ratio  
[units: Ratio]
Mean ± Standard Deviation
4.2 ± 1.0 4.0 ± 0.9 4.1 ± 1.0
Triglycerides (TG)  
[units: mg/dL]
Mean ± Standard Deviation
152.5 ± 68.8 147.8 ± 75.3 149.0 ± 75.3



  Outcome Measures
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1.  Primary:   Percent Change From Baseline in Low Density Lipoprotein-Cholesterol (LDL-C) at Week 6   [ 6 weeks ]

2.  Secondary:   Percent Change in High Density Lipoprotein -Cholesterol (HDL-C)at Week 6   [ 6 weeks ]

3.  Secondary:   Percent Change in Non-High Density Lipoprotein Cholesterol (Non-HDL-C) at Week 6   [ 6 Weeks ]

4.  Secondary:   Percent Change From Baseline in Total-Cholesterol at Week 6   [ 6 Weeks ]

5.  Secondary:   Percent Change From Baseline in Triglycerides (TG) at Week 6   [ 6 weeks ]

6.  Secondary:   Percent Change From Baseline in Apolipoprotein B at Week 6   [ 6 Weeks ]

7.  Secondary:   Percent Change From Baseline in Total-Cholesterol:High Density Lipoprotein Cholesterol (HDL-C) Ratio at Week 6   [ 6 Weeks ]

8.  Secondary:   Percent Change From Baseline in Low Density Lipoprotein Cholesterol (LDL-C):High Density Lipoprotein Cholesterol (HDL-C) Ratio at Week 6   [ 6 Weeks ]

9.  Secondary:   Percent Change From Baseline in Apolipoprotein B: Apolipoprotein A-I Ratio at Week 6   [ 6 Weeks ]

10.  Secondary:   Percent Change From Baseline in Non-High Density Lipoprotein Cholesterol (HDL-C):High Density Lipoprotein Cholesterol (HDL-C) Ratio at Week 6   [ 6 Weeks ]

11.  Secondary:   Percent Change From Baseline in C-Reactive Protein (CRP) at Week 6   [ 6 Weeks ]

12.  Secondary:   Number of Participants Who Attained Target LDL-C <100 mg/dL at Week 6   [ 6 weeks ]

13.  Post-Hoc:   Percent Change in Apolipoprotein A-I at Week 6   [ 6 Weeks ]

14.  Post-Hoc:   Percent Change in C-Reactive Protein (CRP) at Week 6   [ 6 weeks ]


  Serious Adverse Events
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  Other Adverse Events
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