Effect of Diabetes Mellitus on Cholesterol Metabolism
1 other identifier
interventional
57
1 country
1
Brief Summary
HMG CoA reductase inhibitors (statins) are commonly used to treat high cholesterol (HC) in both type 1 and type 2 diabetes mellitus (DM). Several studies have shown benefits of statin among patients of type 2 DM, however, no such data is available for patients with type 1 DM. It is known from studies on cholesterol metabolism using surrogate markers that patients with type 1 DM have higher cholesterol absorption compared to normals and those with type 2 DM have higher cholesterol synthesis. Since statins inhibit synthesis, patients with type 1 DM may not have a good response and may respond better to cholesterol absorption inhibitors. The purpose of this study is to determine the cholesterol lowering effects of cholesterol absorption inhibitors and cholesterol synthesis inhibitors in subjects with type 1 and type 2 diabetes mellitus.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Aug 2008
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2008
CompletedFirst Submitted
Initial submission to the registry
April 8, 2009
CompletedFirst Posted
Study publicly available on registry
April 10, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2013
CompletedResults Posted
Study results publicly available
April 18, 2016
CompletedJuly 29, 2020
July 1, 2020
4.9 years
April 8, 2009
August 25, 2015
July 13, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Changes in LDL Cholesterol
Subjects with T1DM or T2DM were assigned to alternating therapy with simvastatin (40 mg) or ezetimibe (10 mg) for 6 weeks in a crossover design. The data are reported as follows. Subjects with type 1 diabetes mellitus: Simvastatin: Changes in LDL after 6-week therapy with simvastatin (irrespective of the treatment order) Ezetimibe: Changes in LDL after 6-week therapy with ezetimibe (irrespective of the treatment order) Subjects with type 2 diabetes mellitus: Simvastatin: Changes in LDL after 6-week therapy with simvastatin (irrespective of the treatment order) Ezetimibe: Changes in LDL after 6-week therapy with ezetimibe (irrespective of the treatment order)
6 weeks after starting drug therapy
Secondary Outcomes (1)
Changes in Cholesterol Absorption or Synthesis Rates From the Baseline
6 weeks after initiation of drug therapy
Study Arms (4)
Subjects with type 1 diabetes mellitus, option 1
OTHERHalf the subjects will start with arm (i.e. every other subject in order) * Simvastatin 40 mg tablet by month daily for 6 weeks, * 4 weeks washout period Half the subjects will start with arm (i.e. every other subject in order) * Ezetimibe 10 mg by month for 6 weeks * 4 weeks washout period * Simvastatin 40 mg tablet by month daily for 6 weeks
Subjects with type 2 diabetes mellitus option 1
OTHERHalf the subjects will start with arm (i.e. every other subject in order) * Simvastatin 40 mg tablet by month daily for 6 weeks, * 4 weeks washout period Half the subjects will start with arm (i.e. every other subject in order) * Ezetimibe 10 mg by month for 6 weeks * 4 weeks washout period * Simvastatin 40 mg tablet by month daily for 6 weeks
Subjects with type 1 diabetes mellitus, option 2
OTHERHalf the subjects will start with arm (i.e. every other subject in order) * Ezetimibe 10 mg by month for 6 weeks, * 4 weeks washout period
Subjects with type 2 diabetes mellitus option 2
OTHERHalf the subjects will start with arm (i.e. every other subject in order) Ezetimibe 10 mg by month for 6 weeks, •4 weeks washout period
Interventions
Subjects will be started on either simvastatin or ezetimibe (we will alternate the subjects so that half the sample will initially be treated with simvastatin and half will be started on ezetimibe). The dose of Simvastatin (Merck) is 40 mg orally at nighttime for 6 weeks and the dose of ezetimibe (Schering-Plough) is 10 mg taken orally once a day. Subjects will be instructed on low-fat diet (therapeutic life style changes diet) recommended by American Heart Association by the bionutritionist.
Eligibility Criteria
You may qualify if:
- Type 1 DM:
- Age \> 18 years
- Subjects diagnosed with type 1 DM (diagnosed based upon history of ketoacidosis, proven insulin dependence, absent C-peptide and or positive autoantibody profile (such as anti-GAD etc.)
- Stable A1C \< 8.5%
- BMI \< 31
- Type 2 DM:
- Age \> 18 years
- Subjects diagnosed with type II DM (diagnosed as adult onset, not-insulin dependent and not on insulin)
- Stable A1C \< 8.5%
- BMI \< 31
You may not qualify if:
- History of active, unstable cardiovascular disease (including MI, CHF, Stroke, Angina, CABG, stenting/PTCA, peripheral vascular disease, intermittent claudication)
- Pregnancy, nursing or likely to get pregnant during the course of the study (not on oral contraceptives and premenopausal)
- Chronic Kidney Disease (creatinine \> 2.0)
- Liver function test abnormalities, not previously worked up (AST or ALT \>4x upper limit of normal)
- Active substance abuse including alcohol
- History of severe Hypertriglyceridemia (untreated TG \> 500) and on therapy
- Use of agents that interfere with cholesterol absorption (such as fiber, resins etc.) which can not be discontinued for the duration of the study
- Actively enrolled in a weight loss program or following a special diet ( e.g.: Atkins diet)
- History of malignancy \<5y
- History of Rhabdomyolysis and Myopathy
- Use of on-going oral corticosteroids
- History of HIV infection
- Use of following drugs/compounds: cyclosporine, itraconazole, ketoconazole, erythromycin, clarithromycin, HIV protease inhibitors, nefazodone, gemfibrozil, niacin, amiodarone, verapamil or large quantities of grape fruit juice (\> 1 quart per day)
- Proteinuria: more than or equal to 300mg/24 hours calculated from random urine specimen.
- BMI \>31
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Medical College of Wisconsin /Froedtert Hospital
Milwaukee, Wisconsin, 53226, United States
Related Publications (1)
Ciriacks K, Coly G, Krishnaswami S, Patel SB, Kidambi S. Effects of simvastatin and ezetimibe in lowering low-density lipoprotein cholesterol in subjects with type 1 and type 2 diabetes mellitus. Metab Syndr Relat Disord. 2015 Mar;13(2):84-90. doi: 10.1089/met.2014.0114. Epub 2014 Dec 9.
PMID: 25490061RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
1. Smaller than desirable sample size due to difficulty in recruitment. 2. Could not evaluate the effect of duration of the diabetes mellitus as independent confirmation of the duration could not be done. 3. Apolipoprotein levels were not measured.
Results Point of Contact
- Title
- Srividya Kidambi, MD, MS
- Organization
- Medical College of Wisconsin
Study Officials
- PRINCIPAL INVESTIGATOR
Srividya Kidambi, MD
Medical College of Wisconsin
- PRINCIPAL INVESTIGATOR
Shailendra B Patel, MD, PhD
Medical College of Wisconsin
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor, Endocrinology
Study Record Dates
First Submitted
April 8, 2009
First Posted
April 10, 2009
Study Start
August 1, 2008
Primary Completion
July 1, 2013
Study Completion
July 1, 2013
Last Updated
July 29, 2020
Results First Posted
April 18, 2016
Record last verified: 2020-07