SLIM: Combined Effects of Slo-Niacin and Atorvastatin on Lipoproteins and Inflammatory Markers in Hyperlipidemia

NCT ID: NCT00194402

Last Updated: 2008-08-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

64 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-08-31

Study Completion Date

2006-01-31

Brief Summary

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Slo-Niacin and atorvastatin (Lipitor) are both drugs that lower cholesterol. In this research, we will compare the effectiveness of Slo-Niacin and atorvastatin taken alone and together. This study will help show how the individual benefits of the two drugs taken separately can be combined when taken together.

Detailed Description

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Combined niacin and a statin treatment has greater potential value than either agent alone for the dyslipidemia of insulin resistance, obesity and the metabolic syndrome. The efficacy of Slo-Niacin and atorvastatin has not been formally examined in this setting.

Methods: Forty-four dyslipidemic men and women (LDL-C \>130mg/dL and below average HDL-C (\<55 in women and \<45 in men) were randomized to a 3 month course of atorvastatin 10 mg or Slo-Niacin increased monthly at doses of 500, 1000 and 1500 mg/day. The alternate drug was added in the second 3-month segment. Lipid profiles and transaminase measurements were obtained monthly and full lipoprotein quantifications, apoproteins, remnant like lipoproteins (RLP), LDL buoyancy, glucose, insulin, and C-reactive protein were measured at the end of each 3-month sequence. Results: Mean entry lipids were (mg/dL) TG 187, LDL-C 171, HDL-C 39. Mean BMI was 32.6 Kg/M2. When Slo-Niacin and atorvastatin were given alone, respective decreases in triglyceride (TG) were 18% and 10%, LDL-C 12% and 36% and non-HDL-C 15% and 36%. HDL-C increased 8% and 6%, respectively. Combined therapy decreased median TG 33% and mean LDL-C 43% and increased mean HDL-C 10%. Mean hs CRP decreased 23% and RLP 44.5% in the combined groups. Conclusions: Slo-Niacin with atorvastatin improves all lipoprotein fractions, RLP and hsCRP in combined hyperlipidemia. The reduction of LDL with the drug combination is equivalent to that obtained with 20-80 mg of atorvastatin alone.

Conditions

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Dyslipidemia

Keywords

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cholesterol dyslipidemia hypercholesterolemia C-reactive protein

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

Atorvastatin 10 mg for 12 weeks followed by Slo-Niacin (titrated from 500 to 1500 mg over 8 weeks) taken with atorvastatin 10 mg for an additional 12 weeks

Group Type ACTIVE_COMPARATOR

Slo-Niacin, atorvastatin

Intervention Type DRUG

Atorvastatin 10 mg qd for 12 or 24 weeks. Time-released niacin 1500 mg qd (titrated from 500mg to 1000mg and then to 1500 mg at 4 week intervals) taken for 12 or 24 weeks.

2

Slo-Niacin (titrated from 500 to 1500 mg over 8 weeks) for 12 weeks followed by atorvastatin 10 mg taken with Slo-Niacin 1500 mg for an additional 12 weeks

Group Type ACTIVE_COMPARATOR

Slo-Niacin, atorvastatin

Intervention Type DRUG

Atorvastatin 10 mg qd for 12 or 24 weeks. Time-released niacin 1500 mg qd (titrated from 500mg to 1000mg and then to 1500 mg at 4 week intervals) taken for 12 or 24 weeks.

Interventions

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Slo-Niacin, atorvastatin

Atorvastatin 10 mg qd for 12 or 24 weeks. Time-released niacin 1500 mg qd (titrated from 500mg to 1000mg and then to 1500 mg at 4 week intervals) taken for 12 or 24 weeks.

Intervention Type DRUG

Other Intervention Names

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Lipitor (R) (Atorvastatin) Slo-Niacin (R) (time-release niacin

Eligibility Criteria

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Inclusion Criteria

* LDL-C \> 130 mg/dL
* HDL-C \<= 45 mg/dL in men and \<= 55 mg/dL in women

Exclusion Criteria

* history of hypersensitivity to any statin, niacin or aspirin
* diagnosis of diabetes or a fasting glucose \> 125 mg/dL
* hyper or hypothyroidism (unless treatment stable)
* meet other health, medication, and logistical criteria
Minimum Eligible Age

21 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Upsher-Smith Laboratories

INDUSTRY

Sponsor Role collaborator

University of Washington

OTHER

Sponsor Role lead

Responsible Party

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University of Washington

Principal Investigators

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Robert H. Knopp, MD

Role: PRINCIPAL_INVESTIGATOR

Northwest Lipid Research Clinic, University of Washington

Locations

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Northwest Lipid Research Clinic, University of Washington

Seattle, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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03-6262-A

Identifier Type: -

Identifier Source: org_study_id