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TerminatedNCT00965055Updated Aug 21, 2019Results posted

Ezetimibe in Patients Hypo-responsive to Statins

A Phase 3 interventional study of Ezetimibe and Atorvastatin in High Cholesterol and Coronary Artery Disease, sponsored by University of California, San Diego. Terminated at 1 site in United States. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2019-08-21.

Sponsored by University of California, San Diego · Phase 3, Interventional, and Treatment

Why this study was terminated
The study was terminated due to inability to recruit subjects. A total of 2/100 anticipated were radomized.
Phase
Phase 3
Study type
Interventional
Enrollment
2
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Response to statin therapy for elevated low density lipoprotein is variable and may be influenced by cholesterol absorption. This study will evaluate whether combination therapy with atorvastatin/ezetimibe will be superior to atorvastatin alone in subjects who have less than 25% LDL reduction on starting dose statin (eg, atorvastatin 10 mg daily or simvastatin 20 mg daily).

Read the detailed description

Specific Aim 1 To identify a patient population seen in the University of California, San Diego general internal medicine and cardiology subspecialty clinics as well as referrals from community physicians who are hyporesponsive to statin therapy (defined as an initial LDL reduction of \<25% in response to 10mg of atorvastatin or 20mg of simvastatin- expected mean reduction is 35% -37% for starting dose simvastatin and atorvastatin).

Specific Aim 2 To test the hypothesis, with a prospective study, that a hyporesponse to statin therapy may be related to increased cholesterol absorption, and that this hyporesponse may be overcome by the addition of ezetimibe, a specific cholesterol absorption inhibitor.

Specific Aim 3 To evaluate whether patients with less than 25% LDL reduction on 10 mg of atorvastatin (or 20 mg of simvastatin) would achieve significantly greater LDL reduction with combination therapy (atorvastatin/ezetimibe) than with statin dose titration (using atorvastatin).

02

Conditions studied

  • High Cholesterol
  • Coronary Artery Disease
03

In context

Coronary Artery Disease

5,598 studies on the registry are indexed under Coronary Artery Disease; 957 are open to participants now.

This study's enrollment of 2 is below the median of 124 across 3,436 interventional studies indexed under Coronary Artery Disease.

Browse Coronary Artery Disease studies →

Lead sponsor

University of California, San Diego is the lead sponsor of 958 studies on the registry; 191 are open to participants now.

Of its 110 completed or terminated interventional studies of FDA-regulated products, 70 (64%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients will need to have an LDL-C level of 130 mg/dl or greater without treatment.
  • They must have demonstrated an initial LDL-C reduction of less than 25% on 10 mg of atorvastatin or 20 mg of simvastatin.
  • Eligible patients will be those deemed by their physicians to be eligible for lipid lowering therapy with a statin and to have stable CAD, CAD equivalent per NCEP guidelines, or Framingham risk of 10-20%.

Exclusion criteria

Exclusion Criteria:

  • Recent (\<3 months) diagnosis of Acute Coronary Syndromes due to ethical considerations [10].
  • Pregnant patients, those planning to become pregnant, or those who are breast feeding, those with liver disease, history allergic reaction to any agent used in the trial, history of myositis, myopathy, pancreatitis, hypertriglyceridemia (TG > 400 mg/dL), history of significant alcohol or drug abuse, history of organ transplantation, or patient refusal.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
2 participants (actual)

Study arms

  • Placebo comparator
    Atorvastatin

    Drug: Atorvastatin

  • Experimental
    Atorvastatin/Ezetimibe

    Drug: Ezetimibe · Drug: Atorvastatin

Interventions

  • DrugEzetimibe

    10 mg

    Also known as: Zetia, Lipitor

  • DrugAtorvastatin

    Visit 1: (atorvastatin open label challenge): Those who complete the initial screening and washout period will receive open label atorvastatin 10 mg daily for 6 weeks to verify compliance and confirm hyporesponse to statin therapy. Visit 2: After 6 weeks of therapy repeat baseline fasting cholesterol. Those with LDL-c reduction of 25% or less will be able to proceed to next phase. Patients with greater than 25% LDL-C reduction will be excluded. We expect to randomize 80 patients Visit 2a: Dispensing of first randomized drug allocation- all patients receive open label atorvastatin 10 mg with additional ezetimibe 10 mg or matching placebo. No blood test during this visit. Visit 3, 4, 5: Dose titration to atorvastatin to 20 mg, 40 mg, 80 mg, respectively, after fasting blood test Blood collected in visits 3, 4, and 5 will be stored for additional tests regarding cholesterol metabolism and inflammation. Visit 6: Final cholesterol panel and conclusion of study period

06

What researchers measure

Primary outcomes

  1. LDL-C Reduction

    Study was not analyzed as only 2 subjects were enrolled and the study was terminated due to lack of enrollment.

    Time frame: 6 weeks

Secondary outcomes

  1. LDL-C Reduction as Well as Changes in TG, HDL, and Non-HDL Cholesterol.

    Time frame: 24 weeks

07

Results

Posted Aug 21, 2019
Limitations and caveats
Study was not analyzed as only 2 subjects were enrolled and the study was terminated due to lack of enrollment.

Participant flow

Participant flow — Overall Study
MilestoneAll Study Participants
Started2
Completed2
Not completed0

Outcome measures

PrimaryLDL-C Reduction

Study was not analyzed as only 2 subjects were enrolled and the study was terminated due to lack of enrollment.

Time frame:
6 weeks

No measurements were reported for this outcome.

SecondaryLDL-C Reduction as Well as Changes in TG, HDL, and Non-HDL Cholesterol.
Time frame:
24 weeks

No measurements were reported for this outcome.

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
All Study Participants0/2 (0%)0/2 (0%)0/2 (0%)

Baseline characteristics

Study was not analyzed as only 2 subjects were enrolled and the study was terminated due to lack of enrollment.

Age, Categorical
Age, CategoricalAll Study Participants
<=18 years—
Between 18 and 65 years—
>=65 years—
Sex: Female, Male
Sex: Female, MaleAll Study Participants
Female—
Male—
08

Study locations

1 site
  • UCSD Medical Center in Hillcrest Clinical Trials Facility
    San Diego, California 92103, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 21, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00965055
Lead sponsor
University of California, San Diego
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Ori Ben-Yehuda (Professor of Medicine, University of California, San Diego) — Principal investigator
First posted
Aug 25, 2009
Start date
Sep 2009
Primary completion
Sep 2011
Completion
Sep 2012
Results posted
Aug 21, 2019
Last update
Aug 21, 2019

Study contacts

Ori Ben-Yehuda, MD
principal investigator · UCSD

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Aug 2019. You cannot join it, but the record below documents what was studied.

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