NCT00988364

Brief Summary

The purpose of this study is:

  • To identify the common factor for L5 prevalence in patients with Metabolic Syndrome.
  • To determine whether Ezetimibe, Simvastatin, and Vytorin can correct the L5- promoting factor and reduce L5 in Metabolic Syndrome patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Mar 2007

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2007

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2008

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

October 1, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 2, 2009

Completed
14.2 years until next milestone

Results Posted

Study results publicly available

November 30, 2023

Completed
Last Updated

November 30, 2023

Status Verified

November 1, 2023

Enrollment Period

11 months

First QC Date

October 1, 2009

Results QC Date

November 13, 2022

Last Update Submit

November 12, 2023

Conditions

Keywords

Metabolic SyndromeLDL subfraction L5The reduction of LDL in patients with Metabolic SyndromeThe prevalence of L5 in patients with Metabolic SyndromeThe reduction of L5 in patients with Metabolic Syndrome

Outcome Measures

Primary Outcomes (1)

  • L5 Concentration in Metabolic Syndrome Patients

    Patient's blood samples were collected before treatment. L5 were purified by ultracentrifugation then FPLC. Quantification analysis will indicate the L5 concentration (mg/dL) per group.

    0 months, at the start

Secondary Outcomes (1)

  • L5 Concentration After Treatment of Ezetimibe, Simvastatin, or Vytorin in Metabolic Syndrome Patients

    3 months

Study Arms (4)

Ezetimibe

ACTIVE COMPARATOR

Randomly chosen participants will receive ezetimibe 10mg daily for 3 months.

Drug: Ezetimibe

Simvastatin

ACTIVE COMPARATOR

Randomly chosen participants will receive Simvastatin 20mg daily for 3 months.

Drug: Simvastatin

Vytorin

ACTIVE COMPARATOR

Randomly chosen participants will receive Vytorin 20/10mg daily for 3 months.

Drug: Vytorin

Placebo

PLACEBO COMPARATOR

Randomly chosen participants will receive Placebo tab 1 daily for 3 months.

Drug: Placebo

Interventions

Simvastatin 20mg daily for 3 months.

Also known as: Zocor
Simvastatin

Vytorin 20/10mg daily for 3 months.

Also known as: Ezetimibe/Simvastatin
Vytorin

Placebo one tablet daily times 3 months.

Also known as: Control
Placebo

Ezetimibe 10mg daily for 3 months.

Also known as: Zetia
Ezetimibe

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants who meet 3 or more of the 5 criteria specified in the ATPIII guidelines will be recruited.
  • The 5 criteria are:
  • abdominal obesity (men\>40 inches, women \>35 inches);
  • TG\> 150mg/dL;
  • low HDL-C (men \< 40mg/dL, women \< 50 mg/dL);
  • high blood pressure (\>or=130/\>or=85 mmHg);
  • fasting glucose \> or = 110mg/dL.
  • People with different ethnic backgrounds will be included.

You may not qualify if:

  • symptomatic coronary artery disease
  • peripheral vascular disease
  • cerebral ischemia (stroke)
  • smoking
  • hypothyroidism
  • kidney diseases
  • consumption of antioxidation supplements/drugs or use of lipid-lowering drugs in the last 3 months
  • women who are pregnant, nursing, or planning to become pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Baylor College of Medicine

Houston, Texas, 77030, United States

Location

Related Publications (20)

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    PMID: 1811552BACKGROUND
  • Ballantyne CM, Houri J, Notarbartolo A, Melani L, Lipka LJ, Suresh R, Sun S, LeBeaut AP, Sager PT, Veltri EP; Ezetimibe Study Group. Effect of ezetimibe coadministered with atorvastatin in 628 patients with primary hypercholesterolemia: a prospective, randomized, double-blind trial. Circulation. 2003 May 20;107(19):2409-15. doi: 10.1161/01.CIR.0000068312.21969.C8. Epub 2003 Apr 28.

    PMID: 12719279BACKGROUND
  • Ballantyne CM, Hoogeveen RC, Bang H, Coresh J, Folsom AR, Heiss G, Sharrett AR. Lipoprotein-associated phospholipase A2, high-sensitivity C-reactive protein, and risk for incident coronary heart disease in middle-aged men and women in the Atherosclerosis Risk in Communities (ARIC) study. Circulation. 2004 Feb 24;109(7):837-42. doi: 10.1161/01.CIR.0000116763.91992.F1. Epub 2004 Feb 2.

    PMID: 14757686BACKGROUND
  • Chan DC, Watts GF, Barrett PH, Mamo JC, Redgrave TG. Markers of triglyceride-rich lipoprotein remnant metabolism in visceral obesity. Clin Chem. 2002 Feb;48(2):278-83.

    PMID: 11805008BACKGROUND
  • Chen CH, Jiang T, Yang JH, Jiang W, Lu J, Marathe GK, Pownall HJ, Ballantyne CM, McIntyre TM, Henry PD, Yang CY. Low-density lipoprotein in hypercholesterolemic human plasma induces vascular endothelial cell apoptosis by inhibiting fibroblast growth factor 2 transcription. Circulation. 2003 Apr 29;107(16):2102-8. doi: 10.1161/01.CIR.0000065220.70220.F7. Epub 2003 Apr 14.

    PMID: 12695302BACKGROUND
  • Chen CH, Pace PW, Karakoc ND, Lu J, Chen HH, Henry PD, Pownall HJ Foreyt JP, Ballantyne CM, Yang CY. Effective reduction of novel atherogenic LDL subfraction by atorvastatin in patients with hypercholesteremia. J AM Coll Cardiol. 2004:43(suppl A):486A (Abstract)

    BACKGROUND
  • Chappey B, Myara I, Benoit MO, Maziere C, Maziere JC, Moatti N. Characteristics of ten charge-differing subfractions isolated from human native low-density lipoproteins (LDL). No evidence of peroxidative modifications. Biochim Biophys Acta. 1995 Dec 7;1259(3):261-70. doi: 10.1016/0005-2760(95)00172-7.

    PMID: 8541333BACKGROUND
  • De Castellarnau C, Sanchez-Quesada JL, Benitez S, Rosa R, Caveda L, Vila L, Ordonez-Llanos J. Electronegative LDL from normolipemic subjects induces IL-8 and monocyte chemotactic protein secretion by human endothelial cells. Arterioscler Thromb Vasc Biol. 2000 Oct;20(10):2281-7. doi: 10.1161/01.atv.20.10.2281.

    PMID: 11031216BACKGROUND
  • Demuth K, Myara I, Chappey B, Vedie B, Pech-Amsellem MA, Haberland ME, Moatti N. A cytotoxic electronegative LDL subfraction is present in human plasma. Arterioscler Thromb Vasc Biol. 1996 Jun;16(6):773-83. doi: 10.1161/01.atv.16.6.773.

    PMID: 8640405BACKGROUND
  • Kleinman Y, Krul ES, Burnes M, Aronson W, Pfleger B, Schonfeld G. Lipolysis of LDL with phospholipase A2 alters the expression of selected apoB-100 epitopes and the interaction of LDL with cells. J Lipid Res. 1988 Jun;29(6):729-43.

    PMID: 2459282BACKGROUND
  • La Belle M, Blanche PJ, Krauss RM. Charge properties of low density lipoprotein subclasses. J Lipid Res. 1997 Apr;38(4):690-700.

    PMID: 9144084BACKGROUND
  • Lee SJ, Campos H, Moye LA, Sacks FM. LDL containing apolipoprotein CIII is an independent risk factor for coronary events in diabetic patients. Arterioscler Thromb Vasc Biol. 2003 May 1;23(5):853-8. doi: 10.1161/01.ATV.0000066131.01313.EB. Epub 2003 Mar 13.

    PMID: 12637336BACKGROUND
  • Libby P. Inflammation in atherosclerosis. Nature. 2002 Dec 19-26;420(6917):868-74. doi: 10.1038/nature01323.

    PMID: 12490960BACKGROUND
  • Sanchez-Quesada JL, Benitez S, Ordonez-Llanos J. Electronegative low-density lipoprotein. Curr Opin Lipidol. 2004 Jun;15(3):329-35. doi: 10.1097/00041433-200406000-00014.

    PMID: 15166790BACKGROUND
  • Sevanian A, Bittolo-Bon G, Cazzolato G, Hodis H, Hwang J, Zamburlini A, Maiorino M, Ursini F. LDL- is a lipid hydroperoxide-enriched circulating lipoprotein. J Lipid Res. 1997 Mar;38(3):419-28.

    PMID: 9101423BACKGROUND
  • Steinberg D. Lewis A. Conner Memorial Lecture. Oxidative modification of LDL and atherogenesis. Circulation. 1997 Feb 18;95(4):1062-71. doi: 10.1161/01.cir.95.4.1062. No abstract available.

    PMID: 9054771BACKGROUND
  • Simons L, Tonkon M, Masana L, Maccubbin D, Shah A, Lee M, Gumbiner B. Effects of ezetimibe added to on-going statin therapy on the lipid profile of hypercholesterolemic patients with diabetes mellitus or metabolic syndrome. Curr Med Res Opin. 2004 Sep;20(9):1437-45. doi: 10.1185/030079904x2321.

    PMID: 15383192BACKGROUND
  • van Heek M, Austin TM, Farley C, Cook JA, Tetzloff GG, Davis HR. Ezetimibe, a potent cholesterol absorption inhibitor, normalizes combined dyslipidemia in obese hyperinsulinemic hamsters. Diabetes. 2001 Jun;50(6):1330-5. doi: 10.2337/diabetes.50.6.1330.

    PMID: 11375333BACKGROUND
  • Yang CY, Raya JL, Chen HH, Chen CH, Abe Y, Pownall HJ, Taylor AA, Smith CV. Isolation, characterization, and functional assessment of oxidatively modified subfractions of circulating low-density lipoproteins. Arterioscler Thromb Vasc Biol. 2003 Jun 1;23(6):1083-90. doi: 10.1161/01.ATV.0000071350.78872.C4. Epub 2003 Apr 10.

    PMID: 12689919BACKGROUND
  • Yang CY, Chen HH, Huang MT, Raya JL, Yang JH, Chen CH, Gaubatz JW, Pownall HJ, Taylor AA, Ballantyne CM, Jenniskens FA, Smith CV. Pro-apoptotic low-density lipoprotein subfractions in type II diabetes. Atherosclerosis. 2007 Aug;193(2):283-91. doi: 10.1016/j.atherosclerosis.2006.08.059. Epub 2006 Oct 9.

    PMID: 17030034BACKGROUND

MeSH Terms

Conditions

Metabolic Syndrome

Interventions

SimvastatinEzetimibe, Simvastatin Drug CombinationEzetimibe

Condition Hierarchy (Ancestors)

Insulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

LovastatinNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic CompoundsAzetidinesAzetinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDrug CombinationsPharmaceutical Preparations

Results Point of Contact

Title
Dr. Chu-Huang Chen
Organization
Baylor College of Medicine

Study Officials

  • Chu-Huang Chen, M.D., Ph.D.

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR
  • Christie Ballantyne, M.D.

    Baylor College of Medicine

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized, placebo-controlled clinical trial with 4 arms
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 1, 2009

First Posted

October 2, 2009

Study Start

March 1, 2007

Primary Completion

February 1, 2008

Study Completion

February 1, 2008

Last Updated

November 30, 2023

Results First Posted

November 30, 2023

Record last verified: 2023-11

Locations