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Ezetimibe (EZ)/Atorvastatin (Ator) (MK-0653C) vs. Ator in Chinese Hypercholesterolemic Participants (MK-0653C-439)

A Phase 3 Randomized, Active-comparator-controlled Clinical Study to Evaluate the Efficacy and Safety of Ezetimibe/Atorvastatin Combination Tablet (MK-0653C) as Second Line Lipid Lowering Treatment in Chinese Participants

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03768427
Enrollment
454
Registered
2018-12-07
Start date
2019-05-27
Completion date
2021-04-01
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

This study will evaluate the EZ/Ator fixed-dose combination (FDC) tablet (MK-0653C) as second line Low-Density Lipoprotein - Cholesterol (LDL-C) treatment in Chinese participants. The primary hypothesis is that MK-0653C 10/10 mg is superior to atorvastatin 20 mg in percent change from baseline in LDL-C to 12 weeks after treatment.

Interventions

COMBINATION_PRODUCTEZ 10 mg/Ator 10 mg

FDC of EZ10 mg/Ator 10mg

COMBINATION_PRODUCTEZ 10 mg/Ator 20 mg

FDC of EZ10 mg/Ator 20mg

DRUGAtorvastatin

Atorvastatin administered orally QD, either as two 10 mg tablets or as two 20 mg tablets

DRUGPlacebo for FDC EZ/Ator

A single placebo tablet administered orally QD for 84 days

Two placebo tablets matching atorvastatin administered orally QD for 84 days

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 80 Years
Healthy volunteers
No

Inclusion criteria

* Has hypercholesterolemia diagnosed by investigator according to Chinese Guidelines on Prevention and Treatment of Dyslipidemia in Adults (2016 Edition). * Has been stabilized on atorvastatin treatment at 10 mg or 20 mg (or other statins with LDL-C lowering efficacy equivalent to atorvastatin) for at least 4 weeks prior to Visit 1. * If female, is not pregnant or breastfeeding, and is either not a woman of childbearing potential (WOCBP), or is a WOCBP who has used a contraceptive consistent with local regulations. * If male, has used a contraceptive consistent with local regulations. * Agrees to maintain a stable diet and stable exercise during the study.

Exclusion criteria

* Has uncontrolled hypertriglyceridemia which needs drug intervention or a fasting triglyceride (TG) value ≥500 mg/dL (4.52 mmol/L). * Is currently treated with statin at dose of equivalent LDL-C lowering effect \>20 mg atorvastatin. * Has active liver disease * Has New York Heart Association (NYHA) Class III or IV symptomatic congestive heart failure at Visit 1. * Has had uncontrolled cardiac arrhythmias, myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft, unstable angina, or stroke within 3 months (12 weeks) prior to Visit 1. * Has homozygous familial hypercholesterolemia or has undergone LDL apheresis. * Has endocrine or metabolic disease known to influence serum lipids or lipoproteins (i.e., secondary causes of hyperlipidemia, e.g., hyper or hypothyroidism, Cushing's syndrome). * Has had a gastrointestinal tract bypass, or other significant intestinal malabsorption. * Has a history of cancer within the past 5 years from Visit 1 (except for successfully treated dermatological basal cell or squamous cell carcinoma or in situ cervical cancer). * Is known to be human immunodeficiency virus (HIV) positive. * Has hypersensitivity or intolerance to ezetimibe, atorvastatin, the ezetimibe/atorvastatin combination tablet, or any component of these medications or has a condition or situation, which is described as a contraindication in labeling of EZETROL or Lipitor or may interfere with participation in the study. * Has disorders of the hematologic, digestive, or central nervous systems including cerebrovascular disease and degenerative disease that would limit study evaluation or participation. * Has a history of mental instability, drug/alcohol abuse within the past 5 years, or major psychiatric illness not adequately controlled and stable on pharmacotherapy. * Has a history of myopathy or rhabdomyolysis with ezetimibe or any statin. * Is a WOCBP who has had a positive urine pregnancy test within 24 hours before the first dose of study intervention. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. * Is currently taking medications that are potent modulators of cytochrome P-450 3A4 (CYP3A4) including: cyclosporine, systemically administered azole antifungals (e.g., ketoconazole, fluconazole, and itraconazole), macrolide antibiotics (e.g., clarithromycin, and erythromycin), protease inhibitors (e.g., ritonavir, saquinavir, and lopinavir), grapefruit or juice of grapefruit (200 ml/day for \>3 times per week) * Is taking any cyclical hormones (e.g., cyclical oral contraceptives, cyclical hormone replacement), including the combination of ethinyl estradiol and norethisterone, or non-cyclical hormones, including non-cyclical hormone replacement therapy (HRT) or any estrogen antagonist/agonist within 8 weeks. * Note: If participant has been treated with a stable regimen of non-cyclical HRT for \> 8 weeks and agree to continue this regimen for the duration of the trial, concomitant therapy is acceptable. * Is receiving treatment with systemic corticosteroids (intravenous, intramuscular and oral steroids). * Is treated with psyllium, other fiber-based laxatives, phytosterol margarine, and herbal medicine and/or over the counter (OTC) therapies that are known to affect serum lipids. * Note: If participant has been treated with a stable regimen for \> 8 weeks and agrees to continue this regimen for the duration of the trial, concomitant therapy is acceptable. * Is treated with an anti-obesity drug (e.g. mazindol) within 12 weeks prior to Visit 1. * Is treated with warfarin or warfarin-like anticoagulants and has not been on a stable dose with a stable International Normalized Ratio (INR) for at least 6 weeks. weeks. * Has taken lipid-lowering agents (except probucol) including, Cholestin, bile acid sequestrants, ezetimibe, fibrates or niacin (\>200 mg/day), proprotein convertases subtilisin/kexin type 9 (PCSK9) inhibitors within 6 weeks prior to Visit 1. * Has taken probucol within 10 weeks prior to Visit 1. * Has been treated with any other investigational drug within 30 days. * Currently follows an excessive weight reduction diet. * Currently engages in a vigorous exercise regimen (e.g., marathon training, body building training) or intends to start training during the study.

Design outcomes

Primary

MeasureTime frameDescription
Percent Change From Baseline in LDL-C at Week 12Baseline (Day 1) and Week 12Participants had LDL-C levels assessed at baseline and after 12 weeks of study drug administration. The change from baseline was calculated.

Secondary

MeasureTime frameDescription
Percentage of Participants With An Adverse Event (AE)Up to approximately 17 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.
Number of Participants Who Discontinued From Study TreatmentUp to approximately 15 weeksThe number of participants who discontinued treatment over the 12-week treatment period was assessed.

Countries

China

Participant flow

Recruitment details

Chinese participants with Hypercholesterolemia inadequately controlled with 10 mg or 20 mg atorvastatin (Ator) monotherapy were enrolled.

Participants by arm

ArmCount
Atorvastatin 10 mg - Ezetimibe 10 mg/Ator 10 mg
Participants had a 5-week run-in of atorvastatin 10 mg once daily (QD). They then received a single oral dose of ezetimibe (EZ) 10 mg/Ator 10 mg fixed dose combination (FDC) tablet QD, and 1 placebo tablet matched to active atorvastatin tablet QD for 84 days.
88
Atorvastatin 10mg - Atorvastatin 20 mg
Participants had a 5-week run-in of atorvastatin 10 mg QD. They then received 2 atorvastatin 20 mg tablets QD, and 1 placebo tablet matched to active atorvastatin tablet QD for 84 days.
89
Atorvastatin 20 mg - EZ 10 mg/Ator 20 mg
Participants had a 5-week run-in of atorvastatin 20 mg QD. They then received a single oral dose of EZ 10 mg/Ator 20 mg FDC tablet QD, and 1 placebo tablet matched to active atorvastatin tablet QD for 84 days.
137
Atorvastatin 20 mg - Atorvastatin 40 mg
Participants had a 5-week run-in of atorvastatin 20 mg QD. They then received 2 atorvastatin 20 mg tablets administered orally, QD, and 1 placebo tablet matched to active atorvastatin tablet QD for 84 days.
140
Total454

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyDeath0010
Overall StudyLost to Follow-up2000
Overall StudyPhysician Decision3244
Overall StudyWithdrawal by Subject7267

Baseline characteristics

CharacteristicAtorvastatin 10 mg - Ezetimibe 10 mg/Ator 10 mgAtorvastatin 10mg - Atorvastatin 20 mgAtorvastatin 20 mg - EZ 10 mg/Ator 20 mgAtorvastatin 20 mg - Atorvastatin 40 mgTotal
Age, Continuous62.4 Years
STANDARD_DEVIATION 7.4
62.4 Years
STANDARD_DEVIATION 8.5
59.4 Years
STANDARD_DEVIATION 9.3
60.6 Years
STANDARD_DEVIATION 10.3
60.9 Years
STANDARD_DEVIATION 9.2
Baseline Low-Density Lipoprotein Cholesterol (LDL-C)95.5 mg/dL
STANDARD_DEVIATION 24.6
96.8 mg/dL
STANDARD_DEVIATION 25.9
96.2 mg/dL
STANDARD_DEVIATION 25.2
88.4 mg/dL
STANDARD_DEVIATION 21.9
91.9 mg/dL
STANDARD_DEVIATION 24.9
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
88 Participants89 Participants137 Participants140 Participants454 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
88 Participants89 Participants137 Participants140 Participants454 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Female
43 Participants38 Participants34 Participants46 Participants161 Participants
Sex: Female, Male
Male
45 Participants51 Participants103 Participants94 Participants293 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 880 / 891 / 1370 / 140
other
Total, other adverse events
0 / 880 / 897 / 1372 / 140
serious
Total, serious adverse events
2 / 884 / 8910 / 1376 / 140

Outcome results

Primary

Percent Change From Baseline in LDL-C at Week 12

Participants had LDL-C levels assessed at baseline and after 12 weeks of study drug administration. The change from baseline was calculated.

Time frame: Baseline (Day 1) and Week 12

Population: All randomized participants who took at least one dose of study treatment, and have at least one post treatment observation of the respective endpoint (Baseline and Week 12) during the treatment period.

ArmMeasureValue (MEAN)Dispersion
Atorvastatin 10 mg - Ezetimibe 10 mg/Ator 10 mgPercent Change From Baseline in LDL-C at Week 12-24.7 Percent changeStandard Deviation 24.9
Atorvastatin 10mg - Atorvastatin 20 mgPercent Change From Baseline in LDL-C at Week 12-5.3 Percent changeStandard Deviation 22.5
Atorvastatin 20 mg - EZ 10 mg/Ator 20 mgPercent Change From Baseline in LDL-C at Week 12-23.3 Percent changeStandard Deviation 23.1
Atorvastatin 20 mg - Atorvastatin 40 mgPercent Change From Baseline in LDL-C at Week 12-9.1 Percent changeStandard Deviation 18.2
Comparison: This statistical analysis was performed by fitting a constrained longitudinal model adjusting for time and the interaction of time by treatment, and time by baseline disease risk category, including all participants with baseline data (88 participants in arm Atorvastatin 10 mg - ezetimibe 10 mg/Ator 10 mg and 89 participants in arm Atorvastatin 10mg - Atorvastatin 20 mg).p-value: <0.00195% CI: [-26.7, -12.3]Constrained longitudinal model
Comparison: This statistical analysis was performed by fitting a constrained longitudinal model adjusting for time and the interaction of time by treatment, and time by baseline disease risk category, including all participants with baseline data (137 participants in arm Atorvastatin 20 mg - EZ 10 mg/Ator 20 mg and 140 participants in arm Atorvastatin 20 mg - Atorvastatin 40 mg).p-value: <0.00195% CI: [-21, -10.7]Constrained longitudinal model
Secondary

Number of Participants Who Discontinued From Study Treatment

The number of participants who discontinued treatment over the 12-week treatment period was assessed.

Time frame: Up to approximately 15 weeks

Population: All randomized participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Atorvastatin 10 mg - Ezetimibe 10 mg/Ator 10 mgNumber of Participants Who Discontinued From Study Treatment9 Number of Participants
Atorvastatin 10mg - Atorvastatin 20 mgNumber of Participants Who Discontinued From Study Treatment5 Number of Participants
Atorvastatin 20 mg - EZ 10 mg/Ator 20 mgNumber of Participants Who Discontinued From Study Treatment13 Number of Participants
Atorvastatin 20 mg - Atorvastatin 40 mgNumber of Participants Who Discontinued From Study Treatment15 Number of Participants
Secondary

Percentage of Participants With An Adverse Event (AE)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Time frame: Up to approximately 17 weeks

Population: All randomized participants who received at least one dose of study treatment.

ArmMeasureValue (NUMBER)
Atorvastatin 10 mg - Ezetimibe 10 mg/Ator 10 mgPercentage of Participants With An Adverse Event (AE)31.8 Percentage of Participants
Atorvastatin 10mg - Atorvastatin 20 mgPercentage of Participants With An Adverse Event (AE)34.8 Percentage of Participants
Atorvastatin 20 mg - EZ 10 mg/Ator 20 mgPercentage of Participants With An Adverse Event (AE)55.5 Percentage of Participants
Atorvastatin 20 mg - Atorvastatin 40 mgPercentage of Participants With An Adverse Event (AE)47.9 Percentage of Participants

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026