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Necessity for Lipid Lowering Therapy in Type 2 Diabetes Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00639080
Recruitment Status : Completed
First Posted : March 19, 2008
Last Update Posted : July 22, 2011
Information provided by:
Endocrine Research Society

Brief Summary:


To assess prior need for lipid lowering therapy in patients with type 2 diabetes.


At present, lipid lowering therapy, usually with a HMG-CoA reductase inhibitor or "statin", is recommended therapy for selected patients with type 2 diabetes mellitus (DM). The use of statins for primary prevention of CVD is not clear. Some primary prevention studies have found a statistically significant benefit but others have not (CARDS and ASPEN).

Although low-density lipoprotein (LDL) has traditionally been a key marker of cardiovascular disease risk (CVD) risk and thus a guide to statin treatment, in recent years apolipoprotein B (apoB) has emerged as an independent risk factor for CVD.

In a recent study, Tildesley H. et al. showed that in 500 patients with type 2 DM not on lipid lowering therapy there was discordance between LDL and apoB values. Specifically, it was found that among patients who fail to achieve the LDL-C target, 13% of men, 24% of women less than 50 and 13% of women greater than 50 meet the apoB target. In other words, while the LDL level would indicate treatment, the apoB level would not.


The investigators propose to measure lipid parameters during lipid lowering therapy and compare this with lipid parameters at one and two months after discontinuation of therapy in selected patients with type 2 DM at low risk for CVD. Lipid parameters to be measured include: high-density lipoprotein (HDL) - cholesterol, LDL-cholesterol, triglycerides, total cholesterol, total cholesterol: HDL-cholesterol ratio and apoB. As well, A1C will be measured.

Condition or disease Intervention/treatment
Type 2 Diabetes Other: Stop lipid lowering therapy (statin)

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Study Type : Observational
Actual Enrollment : 25 participants
Observational Model: Case Control
Official Title: Necessity for Lipid Lowering Therapy in Type 2 Diabetes Patients
Study Start Date : March 2008
Actual Primary Completion Date : October 2010
Actual Study Completion Date : October 2010

Resource links provided by the National Library of Medicine

Group/Cohort Intervention/treatment
Entire study population
All study subjects.
Other: Stop lipid lowering therapy (statin)
Subjects will only be included in the study and thus asked to stop the statin if they are taking less than or equal to 10 mg of lipitor or an equivalent of another statin.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
The study population are type 2 diabetes patients who attend St.Paul's Diabetes Teaching and Training Centre (DTTC) and Dr. Hugh Tildesley's private office in Vancouver, BC Canada.

Inclusion Criteria:

  • LDL < 2.5 mmol/L and total cholesterol: HDL-cholesterol ratio < 4.0
  • Blood pressure ≤ 130/80 mmHg
  • No personal or family history of CVD
  • No history of proteinuria or renal failure
  • Taking atorvastatin (lipitor) with a dosage ≤ 10 mg, equivalent dosages for other statins follow this requirement (Simvastatin ≤ 20 mg, pravastatin ≤ 40 mg, rosuvastatin ≤ 5 mg, fluvastatin ≤ 40 mg and lovastatin ≤ 40 mg)
  • Calculated by the UKPDS Risk Engine to be low risk (risk is less than 15%) for Coronary Heart Disease (CHD), fatal CHD, stroke and fatal stroke (the UKPDS Risk Engine provides risk estimates in individuals with type 2 diabetes not known to have heart disease (1), calculating the patient's risk involves considering risk factors such as age, sex, incidence of smoking and lipid levels)

Exclusion Criteria:

  • Patients who do not meet the above criteria or are not willing to participate will not be included in the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00639080

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Canada, British Columbia
Endocrine Research Society
Vancouver, British Columbia, Canada, V6E 1M7
Sponsors and Collaborators
Endocrine Research Society
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Principal Investigator: Hugh Tildesley, MD St. Paul's Hospital, University of British Columbia

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Responsible Party: Dr. Hugh Tildesley, Endocrine Research Society Identifier: NCT00639080     History of Changes
Other Study ID Numbers: Necessity for LLT
First Posted: March 19, 2008    Key Record Dates
Last Update Posted: July 22, 2011
Last Verified: August 2009
Keywords provided by Endocrine Research Society:
Type 2 diabetes
Additional relevant MeSH terms:
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Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Hydroxymethylglutaryl-CoA Reductase Inhibitors
Anticholesteremic Agents
Hypolipidemic Agents
Molecular Mechanisms of Pharmacological Action
Enzyme Inhibitors
Lipid Regulating Agents