CClinicalTrials.gg
CompletedNCT00817843PANACEAUpdated Jan 9, 2013Results posted

The PostprAndial eNdothelial Function After Combination of Ezetimibe and simvAstatin Study

A Phase 4 interventional study of Simvastatin and Simvastatin/Ezetimibe in Metabolic Syndrome, sponsored by dr.Frank L.J. Visseren. Completed at 5 sites in 2 countries. Open to participants aged 18 Years to 79 Years. Per ClinicalTrials.gov, last updated 2013-01-09.

Sponsored by dr.Frank L.J. Visseren · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 79 Years
Sex
All
01

Study summary

The purpose of this study is to investigate whether low-dose simvastatin in combination with ezetimibe in comparison to high-dose simvastatin alone, has a beneficial effect on the function of the endothelium after an oral fat load in patients with metabolic syndrome.

Read the detailed description

Metabolic syndrome is defined as a group of cardiovascular risk factors and is mainly driven by the epidemic of obesity. High blood lipid levels after a meal may be an important risk factor for cardiovascular disease. In this study we will investigate whether simvastatin in combination with ezetimibe vs. simvastatin alone, has a beneficial effect on the lipid levels after a meal, but more importantly, whether we can measure a difference in function of the endothelium. In a small pilot study we already found that the combination had a beneficial effect in comparison with simvastatin alone. Now we want to solidify these findings in a larger study.

02

Conditions studied

  • Metabolic Syndrome

Keywords

  • Postprandial hypertriglyceridemia
  • Metabolic syndrome
  • Endothelial function
  • Flow mediated dilatation
  • EndoPAT
  • Simvastatin
  • Ezetimibe
03

In context

Metabolic Syndrome

1,963 studies on the registry are indexed under Metabolic Syndrome; 329 are open to participants now.

This study's enrollment of 100 is above the median of 60 across 1,459 interventional studies indexed under Metabolic Syndrome.

Browse Metabolic Syndrome studies →

Lead sponsor

dr.Frank L.J. Visseren is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Patient has a diagnosis of metabolic syndrome according to the modified 2005 AHA/NHLBI Scientific Statement with at least:

    • Abdominal obesity defined as:

    *Males: waist circumference >102cm

    • Females: waist circumference >88cm and two of the following 4 other criteria:

      • Triglycerides>150 mg/dL
      • HDL Cholesterol
    • Males: HDL-C\<40 mg/dL
    • Females:HDL-C\<50 mg/dL - Blood pressure
    • Systolic Blood Pressure ≥130 mmHg or
    • Diastolic Blood Pressure ≥85 mmHg

      • Fasting glucose ≥ 100 mg/dL
  2. Patient understands the study procedures, alternative treatments available, and risks involved with the study, and voluntarily agrees to participate by giving written informed consent.
  3. Patient is a male or female of 18-79 years of age on the day of signing informed consent.
  4. Patient is a non-smoker.
  5. Patient is willing to maintain a stable diet for the duration of the study.
  6. Patient is a postmenopausal female who is not receiving hormone therapy (including cyclic and non-cyclical hormone replacement therapy or any estrogen antagonist/agonist). Postmenopausal status is defined as (1) no menses for ≥1 year but \<3 years and confirmed by FSH levels elevated into the postmenopausal range (as defined by the designated laboratory) or (2) no menses for at least 3 years.
  7. Patient is naïve to lipid-lowering therapy. Naïve is defined as not being treated with a statin, a fibrate or ezetimibe for 3 months before Visit 1 (Week -2)
  8. Patient has a baseline fasting LDL-C level of ≥ 100 mg/dL and \< 220 mg/dL, and TG level \< 400 mg/dL.

Exclusion criteria

EXCLUSION CRITERIA:

  1. Patient has a BMI > 35.
  2. Patient has hypersensitivity or intolerance to ezetimibe or simvastatin or any component of these medications, or to latex.
  3. Patient routinely consumes more than 14 alcoholic drinks per week.
  4. Patient is currently participating or has participated in a study with an investigational compound or device within 30 days of signing informed consent.
  5. Patient has a smoking history > 10 pack-years (1 pack-year = at least 20 cigarettes per day for a year) OR patient who has smoked within 3 months prior to Visit 1 (Week -2).
  6. Patient has exclusionary laboratory values at Visit 1 (Week -2) as listed in the table below:

    liver transaminases (alanine aminotransferase [ALT] and aspartate aminotransferase [AST]) > 1.5 X ULN with no active liver disease Serum glucose > 7.0 mmol/L Creatine kinase(CK)> 2 X ULN Albumin:creatinine ratio > 34 TSH \<0.3 mcIU/mL or > 5.0 mcIU/mL

  7. Patient has a history or current evidence of any condition, therapy, lab abnormality or other circumstance that might confound the results of the study, or interfere with the patient's participation for the full duration of the study, such that it is not in the best interest of the patient to participate.
  8. It is not possible to obtain a FMD measurement of sufficient quality at screening (Visit 1)
  9. Patient has congestive heart failure, atherosclerotic vascular disease or acute or chronic coronary heart disease.
  1. Patient has had a partial ileal bypass, gastric bypass, gastric banding, celiac disease or other significant intestinal malabsorption.
  1. Patient has untreated and uncontrolled hypertension with systolic blood pressure >160 mm Hg or diastolic >100 mm Hg at Visit 1 (Week -2). (Patients with untreated hypertension and with office BP at Visit 1 and Visit 2 averaging 160/100 or less can be enrolled). Patients using blood pressure-lowering medication are excluded.
  1. Patient has estimated glomerular filtration rate (eGFR) \< 30 mL/min/1.73 m2 based on the 4-variable MDRD
  1. Patient has uncontrolled endocrine or metabolic disease known to influence serum lipids or lipoproteins at Visit 1 (Week -2).
  1. Patient has diabetes mellitus defined as a history of diabetes or fasting serum glucose > 126 mg/dL.

For the full exclusion criteria, please check the protocol

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    First Simva 80mg then Simvai/Eze10/10mg

    First 6 weeks of Simvastatin 80mg, then 6 weeks of Simvastatin/Ezetimibe 10/10mg after 6 weeks of placebo washout

    Drug: Simvastatin · Drug: Simvastatin/Ezetimibe

  • Experimental
    First Simva/Eze 10/10mg then Simva 80mg

    First 6 weeks of Simvastatin/Ezetimibe 10/10mg, then 6 weeks of Simvastatin 80mg after 6 weeks of placebo washout

    Drug: Simvastatin · Drug: Simvastatin/Ezetimibe

Interventions

  • DrugSimvastatin

    6 weeks of treatment with simvastatin 80 mg

    Also known as: Simvastatin (Zocor)

  • DrugSimvastatin/Ezetimibe

    6 weeks of treatment with simvastatin 10 mg / ezetimibe 10 mg combination

    Also known as: Simvastatin/Ezetimibe (Zetia)

06

What researchers measure

Primary outcomes

  1. Treatment Difference in (Postprandial-Fasting) FMD

    A comparison of the postprandial minus fasting change in FMD under treatment with simvastatin 80 mg versus simvastatin 10/10 mg

    Time frame: After 6 weeks of treatment

Secondary outcomes

  1. Postprandial Endopat Measurement

    Time frame: after 6 weeks of treatment (crossover)

  2. Preprandial Endothelial Function Measured by FMD

    Time frame: after 6 weeks of treatment (crossover)

  3. Preprandial Endopat Measurement

    Time frame: after 6 weeks of treatment (crossover)

07

Results

Posted Jan 9, 2013
Limitations and caveats
One limitation is that the study was conducted in obese patients with the metabolic syndrome.

Participant flow

Between and patients were screened of which subjects were randomized in the following centers UMC Utrecht, Utrecht, the Netherlands AMC, Amsterdam, the Netherlands Vascular Research Center, Hoorn, the Netherlands Tweesteden Ziekenhuis, Waalwijk, the Netherlands Hospital Arnau de Vilanova, Lleida, Spain

First Period (6 Weeks)
Participant flow — First Period (6 Weeks)
MilestoneSimvastatin 80mg First, Then Simvastatin/Ezetimibe 10/10mgSimvastatin/Ezetimibe 10/10mg First, Then Simvastatin 80mg
Started5050
Completed4246
Not completed84
Washout Period (6 Weeks)
Participant flow — Washout Period (6 Weeks)
MilestoneSimvastatin 80mg First, Then Simvastatin/Ezetimibe 10/10mgSimvastatin/Ezetimibe 10/10mg First, Then Simvastatin 80mg
Started4246
Completed4145
Not completed11
Second Period (6 Weeks)
Participant flow — Second Period (6 Weeks)
MilestoneSimvastatin 80mg First, Then Simvastatin/Ezetimibe 10/10mgSimvastatin/Ezetimibe 10/10mg First, Then Simvastatin 80mg
Started4145
Completed4144
Not completed01

Outcome measures

SecondaryPostprandial Endopat Measurement
Time frame:
after 6 weeks of treatment (crossover)

Results for this outcome have not been posted.

SecondaryPreprandial Endothelial Function Measured by FMD
Time frame:
after 6 weeks of treatment (crossover)

Results for this outcome have not been posted.

SecondaryPreprandial Endopat Measurement
Time frame:
after 6 weeks of treatment (crossover)

Results for this outcome have not been posted.

PrimaryTreatment Difference in (Postprandial-Fasting) FMD

A comparison of the postprandial minus fasting change in FMD under treatment with simvastatin 80 mg versus simvastatin 10/10 mg

Time frame:
After 6 weeks of treatment
Reported as:
Mean · % (change FMD)
Treatment Difference in (Postprandial-Fasting) FMD
% (change FMD)Simvastatin 80 mgSimvastatin 10 mg / Ezetimibe 10 mg
Treatment Difference in (Postprandial-Fasting) FMD-0.34 ± 0.210-0.43 ± 0.202
Statistical analysis
  • Simvastatin 80 mg vs Simvastatin 10 mg / Ezetimibe 10 mg · ANOVA · p = 0.766 · Mean difference (final values): -0.09

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Simvastatin 80mg or Simvastatin/Ezetimibe 10/10mg—2/100 (2%)0/100 (0%)
Most frequent serious events
Most frequent serious events
EventSimvastatin 80mg or Simvastatin/Ezetimibe 10/10mg
Myocardial infarctionVascular disorders1/100
AppendicitisGastrointestinal disorders1/100

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Simvastatin 80mg or Simvastatin/Ezetimibe 10/10mg
<=18 years0
Between 18 and 65 years84
>=65 years16
Age Continuous
Age Continuous(years)Simvastatin 80mg or Simvastatin/Ezetimibe 10/10mg
Mean57 ± 9
Sex: Female, Male
Sex: Female, Male(Participants)Simvastatin 80mg or Simvastatin/Ezetimibe 10/10mg
Female40
Male60
Region of Enrollment
Region of Enrollment(participants)Simvastatin 80mg or Simvastatin/Ezetimibe 10/10mg
Spain16
Netherlands84
08

Study locations

5 sites
  • Academic Medical Center
    Amsterdam, 1005 AZ, Netherlands
  • Vascular Research Center Hoorn
    Hoorn, 1624 NP, Netherlands
  • Department of Vascular Medicine UMC Utrecht
    Utrecht, 3584 CX, Netherlands
  • Tweesteden Ziekenhuis
    Waalwijk, 5141 BM, Netherlands
  • Hospital Arnau de Vilanova
    Lleida, E-25198, Spain
09

References and documents

Publications

  • Olijhoek JK, Hajer GR, van der Graaf Y, Dallinga-Thie GM, Visseren FL. The effects of low-dose simvastatin and ezetimibe compared to high-dose simvastatin alone on post-fat load endothelial function in patients with metabolic syndrome: a randomized double-blind crossover trial. J Cardiovasc Pharmacol. 2008 Aug;52(2):145-50. doi: 10.1097/FJC.0b013e31817ffe76. PubMed 18670365 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 9, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00817843
Lead sponsor
dr.Frank L.J. Visseren
Collaborators
Merck Sharp & Dohme LLC
Responsible party
dr.Frank L.J. Visseren (Professor F.L.J. Visseren, MD PhD, head of department of Vascular Medicine, UMC Utrecht) — Sponsor-investigator
First posted
Jan 7, 2009
Start date
Apr 2009
Primary completion
Sep 2010
Completion
Sep 2010
Results posted
Jan 9, 2013
Last update
Jan 9, 2013

Study contacts

Frank LJ Visseren, MD PhD
principal investigator · UMC Utrecht

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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