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Safety and Efficacy Study Comparing ABT-335 Coadministered With Atorvastatin and Ezetimibe to Atorvastatin Coadministered With Ezetimibe in Subjects With Multiple Abnormal Lipid (Fat) Levels in the Blood

A Multicenter, Randomized, Double-Blind, Prospective Study Comparing the Safety and Efficacy of ABT-335 in Combination With Atorvastatin and Ezetimibe to Atorvastatin in Combination With Ezetimibe in Subjects With Combined (Atherogenic) Dyslipidemia

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00639158
Enrollment
543
Registered
2008-03-20
Start date
2008-02-29
Completion date
Unknown
Last updated
2011-06-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dyslipidemias, Coronary Heart Disease, Combined (Atherogenic) Dyslipidemia, Mixed Dyslipidemia

Brief summary

The primary purpose of this study is to compare the safety and efficacy of ABT-335 (investigational drug) coadministered with atorvastatin and ezetimibe to atorvastatin coadministered with ezetimibe in subjects with abnormal lipid (fat) levels in the blood.

Interventions

135 mg capsule, daily, 12 weeks

DRUGplacebo

placebo capsule, daily, 12 weeks

DRUGatorvastatin

40 mg, tablet, daily, 12 weeks

DRUGezetimibe

10 mg capsule, daily, 12 weeks

Sponsors

Abbott
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects with mixed dyslipidemia (trigylcerides, \> or = to 150 mg/dL to \< 400 mg/dL; HDL-C \< 40 mg/dL for males, \< 50 mg/dL for females; LDL-C, \> or = to 130 mg/dL). * Subjects must agree to use adequate birth control methods and to adhere to the American Heart Association (AHA) Diet.

Exclusion criteria

* Subjects with unstable or uncontrolled medical conditions considered inappropriate in a clinical trial. * Subjects with an unstable dose of medications or receiving Coumadin, oral, intravenous or intramuscular cyclosporine, statins, or certain other medications. * Women who are pregnant or plan on becoming pregnant, or women who are lactating.

Design outcomes

Primary

MeasureTime frameDescription
Median Percent Change in Triglycerides From Baseline to Final VisitBaseline to 12 Weeks (Final Visit)\[(Week 12 triglycerides minus baseline triglycerides)/baseline triglycerides\] x 100
Mean Percent Change in High-Density Lipoprotein Cholesterol (HDL-C) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 HDL-C minus baseline HDL-C)/baseline HDL-C\] x 100

Secondary

MeasureTime frameDescription
Mean Percent Change in Apolipoprotein CIII (apoCIII) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 apoCIII minus baseline apoCIII)/baseline apoCIII\] x 100
Mean Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 non-HDL-C minus baseline non-HDL-C)/baseline non-HDL-C\] x 100
Mean Percent Change in Apolipoprotein AI (apoAI) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 apoAI minus baseline apoAI)/baseline apoAI\] x 100
Median Percent Change in High-Sensitivity C-Reactive Protein (hsCRP) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 hsCRP minus baseline hsCRP)/baseline hSCRP\] x 100
Mean Percent Change in Apolipoprotein B (apoB) From Baseline to Final VisitBaseline to 12 weeks (Final Visit)\[(Week 12 apoB minus baseline apoB)/baseline apoB\] x 100
Mean Percent Change in Very Low-Density Lipoprotein Cholesterol (VLDL-C) From Baseline to Final VisitBaseline to 12 weeks (final visit)\[(Week 12 VLDL-C minus baseline VLDL-C)/baseline VLDL-C\] x 100

Countries

United States

Participant flow

Pre-assignment details

One subject was randomized to the atorvastatin and ezetimibe treatment group and never received study drug.

Participants by arm

ArmCount
ABT-335 + 40 mg Atorvastatin + 10 mg Ezetimibe272
Placebo + 40 mg Atorvastatin + 10 mg Ezetimibe270
Total542

Baseline characteristics

CharacteristicPlacebo + 40 mg Atorvastatin + 10 mg EzetimibeTotalABT-335 + 40 mg Atorvastatin + 10 mg Ezetimibe
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
64 Participants109 Participants45 Participants
Age, Categorical
Between 18 and 65 years
206 Participants433 Participants227 Participants
Age Continuous
United States
56.4 participants
STANDARD_DEVIATION 10.67
55.4 participants
STANDARD_DEVIATION 10.99
54.4 participants
STANDARD_DEVIATION 11.23
Age Continuous56.4 years
STANDARD_DEVIATION 10.67
55.4 years
STANDARD_DEVIATION 10.99
54.4 years
STANDARD_DEVIATION 11.23
Sex: Female, Male
Female
155 Participants298 Participants143 Participants
Sex: Female, Male
Male
115 Participants244 Participants129 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
41 / 27251 / 270
serious
Total, serious adverse events
3 / 2725 / 270

Outcome results

Primary

Mean Percent Change in High-Density Lipoprotein Cholesterol (HDL-C) From Baseline to Final Visit

\[(Week 12 HDL-C minus baseline HDL-C)/baseline HDL-C\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline high density lipoprotein cholesterol (HDL-C) value and at least 1 postbaseline HDL-C value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in High-Density Lipoprotein Cholesterol (HDL-C) From Baseline to Final Visit13.0 Percent changeStandard Error 0.95
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in High-Density Lipoprotein Cholesterol (HDL-C) From Baseline to Final Visit4.2 Percent changeStandard Error 0.95
Comparison: A sample size of 212 per arm provided 90% power and \> 99% power with a 2-sided alpha = 0.05 level to detect differences between treatment arms of 6% and 17% in the percent change in HDL-C and TG, respectively, assuming an SD of 19% and 30%, respectively. This sample size provided an overall power of approximately 90% for the 2 primary comparisons. If a loss to follow-up rate of 8% was assumed, the sample size needed to be increased to 230 per arm to maintain the above power.p-value: <0.001ANCOVA
Primary

Median Percent Change in Triglycerides From Baseline to Final Visit

\[(Week 12 triglycerides minus baseline triglycerides)/baseline triglycerides\] x 100

Time frame: Baseline to 12 Weeks (Final Visit)

Population: All randomized subjects with a baseline triglyceride value and at least 1 postbaseline triglyceride value, last observation carried forward.

ArmMeasureValue (MEDIAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMedian Percent Change in Triglycerides From Baseline to Final Visit-57.3 Percent changeInter-Quartile Range 22.32
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMedian Percent Change in Triglycerides From Baseline to Final Visit-39.7 Percent changeInter-Quartile Range 29.44
Comparison: A sample size of 212 per arm provided 90% power and \> 99% power with a 2-sided alpha = 0.05 level to detect differences between treatment arms of 6% and 17% in the percent change in HDL-C and TG, respectively, assuming an SD of 19% and 30%, respectively. This sample size provided an overall power of approximately 90% for the 2 primary comparisons. If a loss to follow-up rate of 8% was assumed, the sample size needed to be increased to 230 per arm to maintain the above power.p-value: <0.001Wilcoxon (Mann-Whitney)
Secondary

Mean Percent Change in Apolipoprotein AI (apoAI) From Baseline to Final Visit

\[(Week 12 apoAI minus baseline apoAI)/baseline apoAI\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline apoAI value and at least 1 postbaseline apoAI value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein AI (apoAI) From Baseline to Final Visit1.8 Percent changeStandard Error 0.74
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein AI (apoAI) From Baseline to Final Visit-1.3 Percent changeStandard Error 0.76
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: 0.004ANCOVA
Secondary

Mean Percent Change in Apolipoprotein B (apoB) From Baseline to Final Visit

\[(Week 12 apoB minus baseline apoB)/baseline apoB\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline apoB value and at least 1 postbaseline apoB value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein B (apoB) From Baseline to Final Visit-49.1 Percent changeStandard Error 0.91
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein B (apoB) From Baseline to Final Visit-44.7 Percent changeStandard Error 0.93
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: <0.001ANCOVA
Secondary

Mean Percent Change in Apolipoprotein CIII (apoCIII) From Baseline to Final Visit

\[(Week 12 apoCIII minus baseline apoCIII)/baseline apoCIII\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline apoCIII value and at least 1 postbaseline apoCIII value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein CIII (apoCIII) From Baseline to Final Visit-42.5 Percent changeStandard Error 1.22
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Apolipoprotein CIII (apoCIII) From Baseline to Final Visit-25.3 Percent changeStandard Error 1.23
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: <0.001ANCOVA
Secondary

Mean Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Final Visit

\[(Week 12 non-HDL-C minus baseline non-HDL-C)/baseline non-HDL-C\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline non-HDL-C value and at least 1 postbaseline non-HDL-C value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Final Visit-55.6 Percent changeStandard Error 0.94
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Final Visit-51.0 Percent changeStandard Error 0.94
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: <0.001ANCOVA
Secondary

Mean Percent Change in Very Low-Density Lipoprotein Cholesterol (VLDL-C) From Baseline to Final Visit

\[(Week 12 VLDL-C minus baseline VLDL-C)/baseline VLDL-C\] x 100

Time frame: Baseline to 12 weeks (final visit)

Population: All randomized subjects with a baseline VLDL-C value and at least 1 postbaseline VLDL-C value, last observation carried forward.

ArmMeasureValue (MEAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Very Low-Density Lipoprotein Cholesterol (VLDL-C) From Baseline to Final Visit-57.8 Percent changeStandard Error 1.87
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMean Percent Change in Very Low-Density Lipoprotein Cholesterol (VLDL-C) From Baseline to Final Visit-41.1 Percent changeStandard Error 1.87
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: <0.001ANCOVA
Secondary

Median Percent Change in High-Sensitivity C-Reactive Protein (hsCRP) From Baseline to Final Visit

\[(Week 12 hsCRP minus baseline hsCRP)/baseline hSCRP\] x 100

Time frame: Baseline to 12 weeks (Final Visit)

Population: All randomized subjects with a baseline hsCRP value and at least 1 postbaseline hsCRP value, last observation carried forward.

ArmMeasureValue (MEDIAN)Dispersion
ABT-335 + 40 mg Atorvastatin + 10 mg EzetimibeMedian Percent Change in High-Sensitivity C-Reactive Protein (hsCRP) From Baseline to Final Visit-52.1 Percent changeInter-Quartile Range 102.82
Placebo + 40 mg Atorvastatin + 10 mg EzetimibeMedian Percent Change in High-Sensitivity C-Reactive Protein (hsCRP) From Baseline to Final Visit-40.3 Percent changeInter-Quartile Range 516.56
Comparison: Secondary endpoints were tested in fixed sequence. If superiority of ABT-335 + atorvastatin + ezetimibe treatment was demonstrated for primary endpoints, secondary endpoints were tested in ranked order of apoA1, VLDL-C, apoC3, non-HDL-C, apoB, and hsCRP at alpha = 0.05 level until 1 secondary endpoint failed to reach statistical significance.p-value: <0.001Wilcoxon (Mann-Whitney)

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026