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To Evaluate Ezetimibe/Simvastatin and Niacin (Extended Release Tablet) in Patients With Type IIa or Type IIb Hyperlipidemia (0653A-091)(COMPLETED)

Multicenter, Randomized, Double-Blind Study to Evaluate the Efficacy and Safety of Ezetimibe/Simvastatin and Niacin (Extended Release Tablet) Co-Administered in Patients With Type IIa or Type IIb Hyperlipidemia

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00271817
Enrollment
1220
Registered
2006-01-04
Start date
2005-12-31
Completion date
2008-02-29
Last updated
2024-05-16

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

Conditions

Hypercholesterolemia

Brief summary

To evaluate the efficacy and safety of ezetimibe/simvastatin and niacin in patients with high cholesterol.

Interventions

DRUGComparator: ezetimibe/simvastatin + niacin (ER)

ezetimibe/simvastatin 10/20mg tablet + niacin (ER) tablet, titrating to 2g, po qd. Treatment time will be \ 24 weeks

DRUGComparator: Placebo to ezetimibe/simvastatin

ezetimibe/simvastatin (Pbo) tablet. Treatment time will be \ 24 weeks.

DRUGComparator: niacin (ER) tablet

niacin (ER) tablet, titrating to 2g, po qd. Treatment time will be \ 24 weeks

DRUGComparator: ezetimibe (+) simvastatin

ezetimibe/simvastatin 10/20mg tablet. Treatment time will be \ 24 weeks.

DRUGComparator: Placebo to Niacin (ER)

Niacin (ER) (Pbo) tablet. Treatment time will be \ 24 weeks.

DRUGComparator: ezetimibe/simvastatin and niacin (ER)

ezetimibe/simvastatin 10/20mg tablet + niacin (ER) tablet 2g, po qd. Treatment time will be \ 40 additional weeks for a total of 64 weeks

DRUGComparator: ezetimibe and simvastatin

ezetimibe/simvastatin 10/20mg tablet. Treatment time will be \ 40 additional weeks for a total of 64 weeks

DRUGComparator: Placebo to niacin (ER)

Niacin (ER) (Pbo) tablet. Treatment time will be \ 40 additional weeks for a total of 64 weeks

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

* Patient with LDL-C of 130 through 190 mg/dL and Triglycerides less than or equal to 500 mg/dL * Patient willing to be on a low-cholesterol diet

Exclusion criteria

* Pregnant or lactating women or intending to become pregnant * Patient with sensitivity or intolerance to ezetimibe, simvastatin, or ezetimibe/simvastatin combination tablet * Patient with sensitivity or intolerance ro niacin, any component or niacin extended release or aspirin * Patient for whom discontinuation of existing lipid-lowering therapy treatment poses an unacceptable risk

Design outcomes

Primary

MeasureTime frameDescription
Percent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)Baseline and 24 WeeksEzetimibe/simvastatin co-administered with niacin extended release compared to niacin extended release monotherapy on the percent change, from baseline in LDL-C after 24 weeks - 24 Week Measure Minus Baseline

Secondary

MeasureTime frameDescription
Percent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)Baseline and 24 weeksEzetimibe/simvastatin co-administered with niacin extended release compared to niacin extended release monotherapy on the percent change from baseline in non-HDL-C after 24 weeks - 24 week measure minus baseline
Percent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)Baseline and 24 weeksEzetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in HDL-C after 24 weeks - 24 week measure minus baseline
Percent Change From Baseline in Triglycerides (TG)baseline and 24 WeeksEzetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in Triglycerides after 24 weeks - 24 week measure minus baseline
Percent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)Baseline and 64 weeksEzetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in LDL-C after 64 weeks - 64 week measure minus baseline

Participant flow

Participants by arm

ArmCount
Niacin
(Part 1): Niacin titrated to 2000 mg taken orally once daily for 24 weeks. During the first 12 weeks of the study, patients randomized to the niacin containing arms started taking niacin 500 mg and had their niacin dose increased 500 mg every 4 weeks to 2000 mg.
272
Ezetimibe/Simvastatin
(Part 1): Ezetimibe/Simvastatin 10/20 mg taken orally once daily for 24 weeks. (Part 2): Ezetimibe/Simvastatin 10/20 mg taken orally once daily for 40 additional weeks for a total of 64 weeks.
272
Ezetimibe/Simvastatin + Niacin
(Part 1): Ezetimibe/Simvastatin 10/20 mg + Niacin (titrated to 2000 mg as noted above) taken orally once daily for 24 weeks. (Part 2): Ezetimibe/Simvastatin 10/20 mg + Niacin 2000 mg taken orally once daily for 40 additional weeks for a total of 64 weeks.
676
Total1,220

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Part 1Adverse Event6825156
Part 1LDL < 50 mg/dL1448
Part 1Lost to Follow-up6824
Part 1Patient Moved315
Part 1Protocol Violation547
Part 1Withdrawal by Subject231745
Part 2Adverse Event01733
Part 2Lack of Efficacy016
Part 2LDL < 50 mg/dL034
Part 2Lost to Follow-up0618
Part 2Patient Moved005
Part 2Protocol Violation035
Part 2Withdrawal by Subject0213

Baseline characteristics

CharacteristicTotalEzetimibe/Simvastatin + NiacinEzetimibe/SimvastatinNiacin
Age, Continuous56.9 years
STANDARD_DEVIATION 10.7
56.9 years
STANDARD_DEVIATION 10.9
57.5 years
STANDARD_DEVIATION 10.3
56.4 years
STANDARD_DEVIATION 10.6
Body Mass Index
<25 kg/m2
222 Participants135 Participants39 Participants48 Participants
Body Mass Index
25 to <30 kg/m2
481 Participants252 Participants119 Participants110 Participants
Body Mass Index
30 to <40 kg/m2
442 Participants251 Participants94 Participants97 Participants
Body Mass Index
≥ 40 kg/m2
69 Participants34 Participants19 Participants16 Participants
Body Mass Index
No BMI Data
6 Participants4 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Asian
26 participants11 participants4 participants11 participants
Race/Ethnicity, Customized
Black
68 participants38 participants17 participants13 participants
Race/Ethnicity, Customized
Hispanic
74 participants49 participants11 participants14 participants
Race/Ethnicity, Customized
Other
5 participants2 participants0 participants3 participants
Race/Ethnicity, Customized
White
1047 participants576 participants240 participants231 participants
Sex: Female, Male
Female
608 Participants352 Participants120 Participants136 Participants
Sex: Female, Male
Male
612 Participants324 Participants152 Participants136 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
121 / —428 / —185 / —175 / —505 / —
serious
Total, serious adverse events
8 / —13 / —16 / —29 / —59 / —

Outcome results

Primary

Percent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in LDL-C after 24 weeks - 24 week measure minus baseline

Time frame: Baseline and 24 weeks

Population: The participant population for this analysis is the Completers Population. This includes all patients with a baseline value, who receive at least 24 weeks of active study therapy, and who have an on-treatment measurement at the maximum titrated dose per the protocol.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-53.5 Percent changeStandard Error 1.2
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-58.5 Percent changeStandard Error 0.8
p-value: <0.00195% CI: [-7.7, -2.1]ANCOVA
Primary

Percent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to niacin extended release monotherapy on the percent change, from baseline in LDL-C after 24 weeks - 24 Week Measure Minus Baseline

Time frame: Baseline and 24 Weeks

Population: The participant population for this analysis is the Completers Population. This includes all patients with a baseline value, who receive at least 24 weeks of active study therapy, and who have an on-treatment measurement at the maximum titrated dose per the protocol.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-20.1 Percent changeStandard Error 1.3
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-58.5 Percent changeStandard Error 0.8
p-value: <0.00195% CI: [-41.4, -35.4]ANCOVA
Secondary

Percent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in HDL-C after 24 weeks - 24 week measure minus baseline

Time frame: Baseline and 24 weeks

Population: The participant population for this analysis is the Completers Population. This includes all patients with a baseline value, who receive at least 24 weeks of active study therapy, and who have an on-treatment measurement at the maximum titrated dose per the protocol.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)8.1 Percent changeStandard Error 1.3
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)30.2 Percent changeStandard Error 1
p-value: <0.00195% CI: [18.8, 25.3]ANCOVA
Secondary

Percent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in HDL-C after 64 weeks - 64 week measure minus baseline

Time frame: Baseline and 64 weeks

Population: The analysis population is the modified intention-to-treat population, which includes patients that were randomized to ezetimibe/simvastatin + niacin or ezetimibe/simvastatin treatment groups and have a baseline measurement and at least on measurement beyond Week 24.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)9.0 Percent changeStandard Error 1.4
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in High-Density Lipoprotein-Cholesterol (HDL-C)30.5 Percent changeStandard Error 1.1
p-value: <0.00195% CI: [18, 25]ANCOVA
Secondary

Percent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in LDL-C after 64 weeks - 64 week measure minus baseline

Time frame: Baseline and 64 weeks

Population: The analysis population is the modified intention-to-treat population, which includes patients that were randomized to ezetimibe/simvastatin + niacin or ezetimibe/simvastatin treatment groups and have a baseline measurement and at least on measurement beyond Week 24.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-49.3 Percent changeStandard Error 1.3
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Low-Density Lipoprotein-Cholesterol (LDL-C)-54.0 Percent changeStandard Error 1
p-value: 0.00495% CI: [-8, -1.5]ANCOVA
Secondary

Percent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in non-HDL-C after 24 weeks - 24 week measure minus baseline

Time frame: Baseline and 24 weeks

Population: The analysis population is the modified intention-to-treat population, which includes patients that were randomized to ezetimibe/simvastatin + niacin or ezetimibe/simvastatin treatment groups and have a baseline measurement and at least on measurement beyond Week 24.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-47.9 Percent changeStandard Error 1.1
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-55.6 Percent changeStandard Error 0.8
p-value: <0.00195% CI: [-10.4, -5]ANCOVA
Secondary

Percent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to niacin extended release monotherapy on the percent change from baseline in non-HDL-C after 24 weeks - 24 week measure minus baseline

Time frame: Baseline and 24 weeks

Population: The participant population for this analysis is the Completers Population. This includes all patients with a baseline value, who receive at least 24 weeks of active study therapy, and who have an on-treatment measurement at the maximum titrated dose per the protocol.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-22.0 Percent changeStandard Error 1.3
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-55.6 Percent changeStandard Error 0.8
p-value: <0.00195% CI: [-36.5, -30.6]ANCOVA
Secondary

Percent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in non-HDL-C after 64 weeks - 64 week measure minus baseline

Time frame: Baseline and 64 weeks

Population: The analysis population is the modified intention-to-treat population, which includes patients that were randomized to ezetimibe/simvastatin + niacin or ezetimibe/simvastatin treatment groups and have a baseline measurement and at least on measurement beyond Week 24.

ArmMeasureValue (MEAN)Dispersion
NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-45.1 Percent changeStandard Error 1.3
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C)-52.4 Percent changeStandard Error 0.9
p-value: <0.00195% CI: [-10.4, -4.2]ANCOVA
Secondary

Percent Change From Baseline in Triglycerides (TG)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in Triglycerides after 64 weeks - 64 week measure minus baseline

Time frame: Baseline and 64 weeks

Population: The analysis population is the modified intention-to-treat population, which includes patients that were randomized to ezetimibe/simvastatin + niacin or ezetimibe/simvastatin treatment groups and have a baseline measurement and at least on measurement beyond Week 24.

ArmMeasureValue (MEDIAN)Dispersion
NiacinPercent Change From Baseline in Triglycerides (TG)-26.8 Percent changeStandard Deviation 32.7
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Triglycerides (TG)-44.5 Percent changeStandard Deviation 26.9
p-value: <0.00195% CI: [-21.8, -13.6]ANCOVA
Secondary

Percent Change From Baseline in Triglycerides (TG)

Ezetimibe/simvastatin co-administered with niacin extended release compared to ezetimibe/simvastatin monotherapy on the percent change from baseline in Triglycerides after 24 weeks - 24 week measure minus baseline

Time frame: baseline and 24 Weeks

Population: The participant population for this analysis is the Completers Population. This includes all patients with a baseline value, who receive at least 24 weeks of active study therapy, and who have an on-treatment measurement at the maximum titrated dose per the protocol.

ArmMeasureValue (MEDIAN)Dispersion
NiacinPercent Change From Baseline in Triglycerides (TG)23.7 Percent changeStandard Deviation 29.7
Ezetimibe/Simvastatin + NiacinPercent Change From Baseline in Triglycerides (TG)-42.5 Percent changeStandard Deviation 27.5
p-value: <0.00195% CI: [-22.6, -14.7]ANCOVA

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