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| Study Type: | Interventional |
|---|---|
| Study Design: | Randomized, Double Blind (Subject, Investigator), Active Control, Parallel Assignment |
| Condition: |
Hypercholesterolemia |
| Interventions: |
Drug: atorvastatin Drug: ezetimibe |
Participant Flow
| 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: 4/6/2006; Last Patient Last Visit 2/26/2008 96 centers worldwide (US, Canada) Eligible patients include those on a stable dose of atorvastatin 40 mg; or patients with adjusted LDLC pre-screen ranges who were treated with other lipid modifying therapy, or were statin and/or ezetimibe naïve. |
| Significant events and approaches for the overall study following participant enrollment, but prior to group assignment |
|---|
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Patients received and were blinded to atorvastatin 40 mg for a 4/5- week run-in period. Patients needed an LDL-C ≥ 70 mg/dL and ≤ 160 mg/dL at Visit 2 (week -1). Eligible patients were randomized at Visit 3 (Week 0) to either atorvastatin 80 mg or addition of ezetimibe 10 mg to their 40 mg dose of atorvastatin for a 6-week treatment period. |
| Description | |
|---|---|
| Atorvastatin + Ezetemibe | Atorvastatin 40 mg + Ezetemibe 10 mg every day for 6 weeks |
| Atorvastatin | Atorvastatin 80 mg every day for 6 weeks |
| Atorvastatin + Ezetemibe | Atorvastatin | |
|---|---|---|
| STARTED | 288 | 291 |
| COMPLETED | 279 | 278 |
| NOT COMPLETED | 9 | 13 |
| Adverse Event | 4 | 7 |
| Lost to Follow-up | 1 | 1 |
| Protocol Violation | 0 | 1 |
| Withdrawal by Subject | 4 | 3 |
| Could not take time off work | 0 | 1 |
Baseline Characteristics
| Description | |
|---|---|
| Atorvastatin + Ezetemibe | Atorvastatin 40 mg + Ezetemibe 10 mg every day for 6 weeks |
| Atorvastatin | Atorvastatin 80 mg every day for 6 weeks |
| Atorvastatin + Ezetemibe | Atorvastatin | Total | |
|---|---|---|---|
|
Number of Participants [units: participants] |
288 | 291 | 579 |
|
Age [units: years] Mean ( Full Range ) |
60.6 ( 31 to 80 ) |
62 ( 34 to 79 ) |
61.3 ( 31 to 80 ) |
|
Gender [units: participants] |
|||
| Female | 115 | 113 | 228 |
| Male | 173 | 178 | 351 |
|
Race/Ethnicity, Customized [units: Participants] |
|||
| White | 237 | 232 | 469 |
| Asian | 4 | 8 | 12 |
| Black | 32 | 29 | 61 |
| Multi-Racial | 15 | 22 | 37 |
|
Apolipoprotein A-I [units: mg/dL] Mean ± Standard Deviation |
154.0 ± 25.5 | 154.6 ± 25.0 | 154.3 ± 25.3 |
|
Apolipoprotein B [units: mg/dL] Mean ± Standard Deviation |
101.3 ± 19.0 | 102.0 ± 18.8 | 101.7 ± 18.9 |
|
Apolipoprotein B:Apolipoprotein A-I ratio [units: Ratio] Mean ± Standard Deviation |
0.7 ± 0.2 | 0.7 ± 0.2 | 0.7 ± 0.2 |
|
C Reactive Protein [units: mg/dL] Mean ± Standard Deviation |
1.8 ± 2.7 | 1.5 ± 3.0 | 1.6 ± 2.8 |
|
High-Density Lipoprotein [units: mg/dL] Mean ± Standard Deviation |
47.4 ± 10.5 | 47.2 ± 10.6 | 47.3 ± 10.5 |
|
Low-Density Lipoprotein [units: mg/dL] Mean ± Standard Deviation |
88.8 ± 16.2 | 89.8 ± 16.2 | 89.4 ± 16.2 |
|
Low-Density Lipoprotein-C:High-Density Lipoprotein-C ratio [units: Ratio] Mean ± Standard Deviation |
2.0 ± 0.6 | 2.0 ± 0.6 | 2.0 ± 0.6 |
|
Non-High-Density Lipoprotein Cholesterol [units: mg/dL] Mean ± Standard Deviation |
117.7 ± 20.8 | 118.1 ± 21.9 | 117.9 ± 21.4 |
|
Non-High-Density Lipoprotein-C:High-Density Lipoprotein-C ratio [units: Ratio] Mean ± Standard Deviation |
2.6 ± 0.8 | 2.6 ± 0.8 | 2.6 ± 0.8 |
|
Total Cholesterol [units: mg/dL] Mean ± Standard Deviation |
165.2 ± 21.4 | 165.3 ± 22.8 | 165.2 ± 22.1 |
|
Total cholesterol:High-Density Lipoprotein-C ratio [units: Ratio] Mean ± Standard Deviation |
3.6 ± 0.8 | 3.6 ± 0.8 | 3.6 ± 0.8 |
|
Triglycerides [units: mg/dL] Median ± Standard Deviation |
132.5 ± 72.1 | 134.0 ± 72.1 | 133.5 ± 72.1 |
Outcome Measures
| 1. Primary: | Percent Change From Baseline to Week 6 in Low-Density Lipoprotein (LDL)-C |
| 2. Secondary: | Percent Change From Baseline to Week 6 in High-Density Lipoprotein Cholesterol (HDL-C) |
| 3. Secondary: | Percent Change From Baseline to Week 6 in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) |
| 4. Secondary: | Percent Change From Baseline to Week 6 in Total-Cholesterol |
| 5. Secondary: | Percent Change From Baseline to Week 6 in Triglycerides (TG) |
| 6. Secondary: | Percent Change From Baseline to Week 6 in Apolipoprotein B (Apo B) |
| 7. Secondary: | Percent Change From Baseline to Week 6 in Apolipoprotein A-I (Apo A-I) |
| 8. Secondary: | Percent Change From Baseline to Week 6 in Total-Cholesterol (TC):High-Density Lipoprotein Cholesterol (HDL-C) Ratio |
| 9. Secondary: | Percent Change From Baseline to Week 6 in Low-Density Lipoprotein-Cholesterol:High-Density Lipoprotein-Cholesterol (LDL-C:HDL-C) Ratio |
| 10. Secondary: | Percent Change From Baseline to Week 6 in Apolipoprotein B:Apolipoprotein A-I (Apo B:Apo A-I) Ratio |
| 11. Secondary: | Percent Change From Baseline to Week 6 in Non-High-Density Lipoprotein-Cholesterol:High-Density Lipoprotein-Cholesterol (Non-HDL-C:HDL-C) Ratio |
| 12. Secondary: | Percent Change From Baseline to Week 6 in C Reactive Protein (CRP) |
| 13. Secondary: | Number of Patients Who Attained Target Low-Density Lipoprotein Cholesterol (LDL-C) <70 mg/dL at Week 6 |
More Information
| All Principal Investigators ARE employed by the organization sponsoring the study. |
| Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data |
|---|
| No text entered. |
| Responsible Party: | Merck & Co., Inc. ( Executive Vice President, Clinical and Quantitative Sciences ) |
| Study ID Numbers: | 2005_105, MK0653-090 |
| Study First Received: | January 11, 2006 |
| Results First Received: | February 6, 2009 |
| Last Updated: | October 23, 2009 |
| ClinicalTrials.gov Identifier: | NCT00276484 History of Changes |
| Health Authority: | United States: Food and Drug Administration |