Cardiovascular Disease Risk, HIV Infection
Conditions
Keywords
treatment experienced
Brief summary
This study is funded by the American Heart Association. The goal of this research is to prevent early cardiovascular damage before symptoms develop for persons with HIV infection. Evidence suggests that taking low doses of blood pressure and cholesterol medication reduces risk for heart disease in persons who are at increased risk (such as the case with HIV infection). Participants who are taking HIV treatment with an 'undetectable' viral load, and who do NOT need treatment for high blood pressure or cholesterol may be eligible to enroll. Participants will take a low dose cholesterol medication (or placebo) and a low dose of a blood pressure medication (or a placebo), and will be seen at 3 study visits over 4 months.
Interventions
Participants randomized to take pravastatin (active) or matching placebo pill once daily
Participants randomized to take lisinopril (active) or matching placebo pill once daily
Sponsors
Study design
Eligibility
Inclusion criteria
* HIV Infection with viral load 'undetectable' while taking antiretroviral therapy * Age ≥40 * Framingham risk score (FRS) ≥5%, or ≥3% with ≥5 years of exposure to antiretroviral therapy
Exclusion criteria
* Known cardiovascular disease or Framingham risk score (FRS) ≥20% * Blood pressure ≥140/90 * LDL cholesterol ≥160 (with FRS \<10%), or ≥130 (with FRS 10-20%) * Currently taking, or has a medication contraindication to take, a 'statin', an ACE inhibitor, or an angiotensin receptor blocker medication * Cirrhosis or plasma ALT/AST levels \>2x upper limit of normal * Chronic kidney disease and a creatinine \>2.0mg/dL * Triglycerides \>500mg/dL
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Who Stated (by Self-report) That They Had Side Effects | 4 months | Participants were asked at each visit if they had any side effects to study medication. They provided a yes or no answer, and if yes they specified what the side effect was. |
| Number of Participants Who Took >90% of Their Doses (by Pill Count) | 4 months | The number of pills missing from study medication bottles was counted by study nurses at the completion of the study. The proportion of pills taken divided by the number of days the participant was enrolled in the study was calculated, and multiplied by 100, to generate the '% of doses taken' |
| Change From Baseline to Month 4 in the Framingham Risk Score (FRS) | Change from baseline to 4 months | The Framingham Risk Score is calculated by a published algorithm that predicts a patients risk of having a coronary heart disease event in the next 10 years. The measures that are considering in predicting this risk are: age, blood pressure, cholesterol (both total cholesterol and high-density lipoprotein cholesterol), smoking status, and use of medication to treat hypertension. This risk score can be estimated using an online calculator (http://hp2010.nhlbihin.net/atpiii/calculator.asp) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes hsCRP (C-reactive Protein) | change from baseline to 4 months | This biomarker represents systemic inflammation within in the body. |
| Changes in Blood Pressure | change from baseline to 4 months | Blood pressure was assessed by standard clinical methods (i.e., the same way it is measured during a routine clinic visit) |
| Changes TNFa (Tumor Necrosis Factor Alpha) | change from baseline to 4 months | This biomarker represents systemic inflammation within in the body. |
| Changes IL-6 (Interleukin-6) | change from baseline to 4 months | This biomarker represents systemic inflammation within in the body. |
| Changes in Blood Lipids | change from baseline to 4 months | Blood lipids include routine cholesterol measurements that are monitored in clinical practice. They are measured in blood after a blood draw is performed. The specific measurements include: a) total cholesterol, b) low-density lipoprotein cholesterol, c) high-density lipoprotein cholesterol, and d) triglycerides |
| Changes in Small Artery Elasticity | change from baseline to 4 months | Small artery elasticity is a measure of vascular function, estimated through analysis of the blood pressure waveform. A sensor is placed on wrist over the radial pulse. The blood pressure waveform of the pulse is recorded and analyzed the elasticity, or compliance, of the small (and large) vasculature. Impaired artery elasticity, or increased stiffness, is an early sign of vascular disease that predicts risk for future cardiovascular events. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Lisinopril/P-placebo Lisinopril 10mg and placebo (matched to pravastatin) once daily | 10 |
| L-placebo/Pravastatin Placebo pill (matched to lisinopril) and Pravastatin 20mg once daily | 9 |
| Lisinopril/Pravastatin Lisinopril 10mg and Pravastatin 20mg once daily | 9 |
| L-placebo/P-placebo Placebo pill (matched to pravastatin) and placebo pill (matched to lisinopril) once daily | 9 |
| Total | 37 |
Baseline characteristics
| Characteristic | L-placebo/Pravastatin | Lisinopril/Pravastatin | Lisinopril/P-placebo | L-placebo/P-placebo | Total |
|---|---|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical Between 18 and 65 years | 9 Participants | 9 Participants | 10 Participants | 9 Participants | 37 Participants |
| Age, Continuous | 47 years STANDARD_DEVIATION 12 | 48 years STANDARD_DEVIATION 4 | 52 years STANDARD_DEVIATION 8 | 45 years STANDARD_DEVIATION 7 | 48 years STANDARD_DEVIATION 7 |
| Region of Enrollment United States | 9 participants | 9 participants | 10 participants | 9 participants | 37 participants |
| Sex: Female, Male Female | 1 Participants | 0 Participants | 0 Participants | 0 Participants | 1 Participants |
| Sex: Female, Male Male | 8 Participants | 9 Participants | 10 Participants | 9 Participants | 36 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 0 / 10 | 0 / 10 | 0 / 10 | 0 / 10 |
| serious Total, serious adverse events | 0 / 10 | 0 / 9 | 0 / 9 | 0 / 9 |
Outcome results
Change From Baseline to Month 4 in the Framingham Risk Score (FRS)
The Framingham Risk Score is calculated by a published algorithm that predicts a patients risk of having a coronary heart disease event in the next 10 years. The measures that are considering in predicting this risk are: age, blood pressure, cholesterol (both total cholesterol and high-density lipoprotein cholesterol), smoking status, and use of medication to treat hypertension. This risk score can be estimated using an online calculator (http://hp2010.nhlbihin.net/atpiii/calculator.asp)
Time frame: Change from baseline to 4 months
Population: All participants had Framingham risk score (FRS) estimated at baseline and month 4. The change from baseline to month 4 was calculated as the outcome.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Lisinopril/P-placebo | Change From Baseline to Month 4 in the Framingham Risk Score (FRS) | -1.6 Percent probability of CHD event in 10yr |
| L-placebo/Pravastatin | Change From Baseline to Month 4 in the Framingham Risk Score (FRS) | -0.7 Percent probability of CHD event in 10yr |
| Lisinopril/Pravastatin | Change From Baseline to Month 4 in the Framingham Risk Score (FRS) | -1.5 Percent probability of CHD event in 10yr |
| L-placebo/P-placebo | Change From Baseline to Month 4 in the Framingham Risk Score (FRS) | -0.3 Percent probability of CHD event in 10yr |
Number of Participants Who Stated (by Self-report) That They Had Side Effects
Participants were asked at each visit if they had any side effects to study medication. They provided a yes or no answer, and if yes they specified what the side effect was.
Time frame: 4 months
Population: Number of participants who stated (by self-report) that they had side effects
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Lisinopril/P-placebo | Number of Participants Who Stated (by Self-report) That They Had Side Effects | 1 participants |
| L-placebo/Pravastatin | Number of Participants Who Stated (by Self-report) That They Had Side Effects | 0 participants |
| Lisinopril/Pravastatin | Number of Participants Who Stated (by Self-report) That They Had Side Effects | 2 participants |
| L-placebo/P-placebo | Number of Participants Who Stated (by Self-report) That They Had Side Effects | 1 participants |
Number of Participants Who Took >90% of Their Doses (by Pill Count)
The number of pills missing from study medication bottles was counted by study nurses at the completion of the study. The proportion of pills taken divided by the number of days the participant was enrolled in the study was calculated, and multiplied by 100, to generate the '% of doses taken'
Time frame: 4 months
Population: Number of participants who took \>90% of their doses (by pill count)were studied. All participants who returned unused medications at end of the study were included for these analyses
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Lisinopril/P-placebo | Number of Participants Who Took >90% of Their Doses (by Pill Count) | 2 participants |
| L-placebo/Pravastatin | Number of Participants Who Took >90% of Their Doses (by Pill Count) | 7 participants |
| Lisinopril/Pravastatin | Number of Participants Who Took >90% of Their Doses (by Pill Count) | 5 participants |
| L-placebo/P-placebo | Number of Participants Who Took >90% of Their Doses (by Pill Count) | 6 participants |
Changes hsCRP (C-reactive Protein)
This biomarker represents systemic inflammation within in the body.
Time frame: change from baseline to 4 months
Population: Analysis presents the baseline-to-month4 difference between Lisinopril versus L-placebo groups; n=17 Lisinopril vs. n=17 L-placebo Our hypothesis for this secondary outcome was the 'main effect' for Lisinopril versus placebo would reduce inflammation. There was no interaction, so analyses define Lisinopril and L-placebo groups as for outcome #4
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Lisinopril/P-placebo | Changes hsCRP (C-reactive Protein) | -1.00 mcg/mL | Standard Error 0.4 |
Changes IL-6 (Interleukin-6)
This biomarker represents systemic inflammation within in the body.
Time frame: change from baseline to 4 months
Population: Analysis presents the baseline-to-month4 difference between Lisinopril versus L-placebo groups; n=17 Lisinopril vs. n=17 L-placebo Our hypothesis for this secondary outcome was the 'main effect' for Lisinopril versus placebo would reduce inflammation. There was no interaction, so analyses define Lisinopril and L-placebo groups as for outcome #4
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Lisinopril/P-placebo | Changes IL-6 (Interleukin-6) | -0.33 pg/mL | Standard Error 0.24 |
Changes in Blood Lipids
Blood lipids include routine cholesterol measurements that are monitored in clinical practice. They are measured in blood after a blood draw is performed. The specific measurements include: a) total cholesterol, b) low-density lipoprotein cholesterol, c) high-density lipoprotein cholesterol, and d) triglycerides
Time frame: change from baseline to 4 months
Population: n = 18 Pravastatin vs. n = 16 P-placebo The outcome is analyzed as the 'main effect' for pravastatin versus placebo, as standard for factorial study designs. Since pravastatin, but not lisinopril, influences cholesterol, the analysis defines Pravastatin and P-placebo groups by pooling across lisinopril groups (i.e., L-placebo + Lisinopril group).
| Arm | Measure | Group | Value (MEAN) |
|---|---|---|---|
| Lisinopril/P-placebo | Changes in Blood Lipids | Total Cholesterol | -1.75 (mg/dL) |
| Lisinopril/P-placebo | Changes in Blood Lipids | LDL-C | -0.62 (mg/dL) |
| Lisinopril/P-placebo | Changes in Blood Lipids | HDL-C | 0.97 (mg/dL) |
Changes in Blood Pressure
Blood pressure was assessed by standard clinical methods (i.e., the same way it is measured during a routine clinic visit)
Time frame: change from baseline to 4 months
Population: n=17 Lisinopril vs. n=17 L-placebo The outcome is analyzed as the 'main effect' for lisinopril versus placebo, as standard for factorial study designs. Since lisinopril, but not pravastatin, influences blood pressure, the analysis defines Lisinopril and L-placebo groups by pooling across pravastatin groups (i.e., P-placebo + Pravastatin groups).
| Arm | Measure | Group | Value (MEAN) |
|---|---|---|---|
| Lisinopril/P-placebo | Changes in Blood Pressure | Systolic BP | -1.8 (mmHG) |
| Lisinopril/P-placebo | Changes in Blood Pressure | Diastolic BP | -3.3 (mmHG) |
Changes in Small Artery Elasticity
Small artery elasticity is a measure of vascular function, estimated through analysis of the blood pressure waveform. A sensor is placed on wrist over the radial pulse. The blood pressure waveform of the pulse is recorded and analyzed the elasticity, or compliance, of the small (and large) vasculature. Impaired artery elasticity, or increased stiffness, is an early sign of vascular disease that predicts risk for future cardiovascular events.
Time frame: change from baseline to 4 months
Population: Analysis presents the baseline-to-month4 difference between Lisinopril versus L-placebo groups; n=17 Lisinopril vs. n=17 L-placebo Our hypothesis for this secondary outcome was the 'main effect' for Lisinopril versus placebo would reduce inflammation. There was no interaction, so analyses define Lisinopril and L-placebo groups as for outcome #4
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Lisinopril/P-placebo | Changes in Small Artery Elasticity | 0.02 mL/mmHgx100 | Standard Error 0.75 |
Changes TNFa (Tumor Necrosis Factor Alpha)
This biomarker represents systemic inflammation within in the body.
Time frame: change from baseline to 4 months
Population: Analysis presents the baseline-to-month4 difference between Lisinopril versus L-placebo groups; n=17 Lisinopril vs. n=17 L-placebo Our hypothesis for this secondary outcome was the 'main effect' for Lisinopril versus placebo would reduce inflammation. There was no interaction, so analyses define Lisinopril and L-placebo groups as for outcome #4
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Lisinopril/P-placebo | Changes TNFa (Tumor Necrosis Factor Alpha) | -0.14 pg/mL | Standard Error 0.1 |