Systemic Immunomodulatory Effects and Pharmacogenetics of Atorvastatin in Early Atherosclerosis
Study Details
Study Description
Brief Summary
The purpose of the study is to test whether atorvastatin (also known as Lipitor) has anti-inflammatory effects in people with no known heart disease or high cholesterol. We also are investigating whether or not genetic differences between people plays a role in the drug response.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
Phase 4 |
Detailed Description
All subjects received 16 weeks of Atorvastatin after a two week run in. Key dependent variables were the 16 week value minus the baseline value (post run-in). Last observation carried forward was used for missing values. The key comparisons are for two groups OATP1B1 reduced carriers and on-carriers and their association with Cytokines and Lipids. Secondarily, we were interested in changes over the 16 weeks for the pooled sample, irrespective of genetics.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Other: atorvastatin 80mg of atorvastatin given once daily for 16 weeks |
Drug: Atorvastatin
atorvastatin 80mg tablets given by mouth once daily for 16 weeks with follow-up visits every 4 weeks
Other Names:
|
Outcome Measures
Primary Outcome Measures
- Mean Change in Level: Week 16-baseline in Ena-78 [16 weeks after baseline]
We take difference week 16 minus week 0 for ENA-78 and use a one sample t comparison.
Eligibility Criteria
Criteria
Inclusion Criteria:
-
18+ years old
-
Normocholesterolemic
Exclusion Criteria:
-
Cardiovascular disease or risk equivalents
-
Malignancy
-
Active alcohol abuse
-
Contraindications to statins
-
Interacting drugs
-
Chronic anti-inflammatory drugs
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | University of Florida | Gainesville | Florida | United States | 32610 |
Sponsors and Collaborators
- University of Florida
- American Heart Association
- American College of Clinical Pharmacy
Investigators
- Principal Investigator: Reginald Frye, PharmD, PhD, University of Florida College of Pharmacy
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 0435278B
Study Results
Participant Flow
Recruitment Details | University of Florida Clinical Research Center. Study started June 2004 and ended January 9, 2009. |
---|---|
Pre-assignment Detail |
Arm/Group Title | Atorvastatin |
---|---|
Arm/Group Description | 80mg of atorvastatin given once daily for 16 weeks |
Period Title: Overall Study | |
STARTED | 108 |
COMPLETED | 81 |
NOT COMPLETED | 27 |
Baseline Characteristics
Arm/Group Title | Atorvastatin |
---|---|
Arm/Group Description | 80mg of atorvastatin given once daily for 16 weeks |
Overall Participants | 108 |
Age (Count of Participants) | |
<=18 years |
0
0%
|
Between 18 and 65 years |
107
99.1%
|
>=65 years |
1
0.9%
|
Age (years) [Mean (Standard Deviation) ] | |
Mean (Standard Deviation) [years] |
31.6
(12.6)
|
Sex: Female, Male (Count of Participants) | |
Female |
66
61.1%
|
Male |
42
38.9%
|
Region of Enrollment (participants) [Number] | |
United States |
108
100%
|
Outcome Measures
Title | Mean Change in Level: Week 16-baseline in Ena-78 |
---|---|
Description | We take difference week 16 minus week 0 for ENA-78 and use a one sample t comparison. |
Time Frame | 16 weeks after baseline |
Outcome Measure Data
Analysis Population Description |
---|
Power calculation |
Arm/Group Title | Atorvastatin 80 MG/Day |
---|---|
Arm/Group Description | Atorvastatin 80 MG/day |
Measure Participants | 81 |
Mean (Standard Deviation) [pg/ml] |
-111.2
(690.5)
|
Statistical Analysis 1
Statistical Analysis Overview | Comparison Group Selection | Atorvastatin 80 MG/Day |
---|---|---|
Comments | The study in healthy volunteers was to compare levels at baseline to 16 weeks in ENA-78, a cytokine. The one sample t-test was used to obtain the result. | |
Type of Statistical Test | Superiority or Other | |
Comments | ||
Statistical Test of Hypothesis | p-Value | 0.15 |
Comments | No confounders were controlled for as each person is his/her own control. | |
Method | t-test, 2 sided | |
Comments | ||
Method of Estimation | Estimation Parameter | Mean Difference (Net) |
Estimated Value | -111 | |
Confidence Interval |
(2-Sided) 95% -264 to 42 |
|
Parameter Dispersion |
Type: Standard Error of the Mean Value: 76.7 |
|
Estimation Comments |
Adverse Events
Time Frame | 16 weeks | |
---|---|---|
Adverse Event Reporting Description | ||
Arm/Group Title | Atorvastatin | |
Arm/Group Description | 80mg of atorvastatin given once daily for 16 weeks | |
All Cause Mortality |
||
Atorvastatin | ||
Affected / at Risk (%) | # Events | |
Total | / (NaN) | |
Serious Adverse Events |
||
Atorvastatin | ||
Affected / at Risk (%) | # Events | |
Total | 0/108 (0%) | |
Other (Not Including Serious) Adverse Events |
||
Atorvastatin | ||
Affected / at Risk (%) | # Events | |
Total | 14/108 (13%) | |
General disorders | ||
Headache | 12/108 (11.1%) | 12 |
Musculoskeletal and connective tissue disorders | ||
Muscle aches | 14/108 (13%) | 14 |
Limitations/Caveats
More Information
Certain Agreements
All Principal Investigators ARE employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Name/Title | Reginald F. Frye, PhD, Associate Professor |
---|---|
Organization | University of Florida |
Phone | 3522735453 |
fryerf@ufl.edu |
- 0435278B