The U.S. Department of Health and Human Services (HHS) guidelines recommend that HIV-infected people who have never received anti-HIV therapy be treated with a triple drug regimen (commonly called combination antiretroviral therapy, cART). Since the introduction of cART, morbidity and mortality among HIV-infected patients has been dramatically reduced. However, metabolic, skeletal, and cardiovascular diseases have been increasingly reported among HIV-infected patients and may be attributable, in part, to the direct effects of cART. Much of our understanding of the development of these diseases, risk factors, and consequences of these disorders has been derived from clinical studies of HIV-infected persons receiving older antiretroviral agents. A5260s was designed to examine the contributions of HIV-disease related factors and impact of newer antiretroviral drugs on the development of metabolic (such as blood vessels, blood sugar, cholesterol), skeletal, and cardiovascular diseases in people who have never received anti-HIV therapy. A5260s is a prospective substudy of a phase III randomized clinical trial A5257 (see ClinicalTrials.gov identifier: NCT00811954). A5257 was designed to look at different combinations of anti-HIV drugs that do not contain the medication efavirenz (EFV) and how well these drug combinations work to decrease the amount of HIV in the blood and to allow immune system recovery in people who have never received anti-HIV therapy. A5257 also examined drug tolerability and safety for the various drug combinations.
A5260s is the optional, metabolic substudy of a phase III, prospective, randomized clinical trial (A5257). For complete details about the parent study A5257, please see ClinicalTrials.gov identifier NCT00811954. Some participants in study A5257 were asked to participate in substudy A5260s. Not all participants were asked since A5260s only took place at a subset of A5257 sites. Participants who agreed to participate in substudy A5260s were enrolled at the same time as their enrollment in A5257. No interventions were given as part of A5260s, but all A5260s participants underwent blood draws, self-administered questionnaire responses (related to physical activity and body image), ultrasound scans to measure the thickness of the carotid artery in the neck and brachial artery flow mediated dilation in the arm, and computerized topography (CT) and dual-energy x-ray absorptiometry (DEXA) scans to measure bone mineral density and body fat. The duration of A5260s study was between 2 and 3 years (96 and 144 weeks), depending on when the participant enrolled. The study was designed to enroll a total of 330 participants with at least 110 per a group; each group represented a different randomized drug combination as defined and assigned by the main study A5257. Cohort A: Atazanavir (ATV) + Ritonavir (RTV) + Emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) Cohort B: Raltegravir (RAL) + FTC/TDF Cohort C: Darunavir (DRV) + RTV + FTC/TDF All participants were asked to return for A5260s clinic visits at weeks 4, 24, 48 96 and 144 and participated in all clinical evaluations. No clinical evaluation was restricted to a subset of A5260s participants. If a participant chose to discontinue participation in the substudy, the participant was able to continue in study A5257. However, a participant discontinuing participation from A5257 was also removed from A5260s. Additionally, a participant's decision to discontinue or switch study drugs in the main study did not impact participation and follow-up clinic visits in A5260s.
Study Type
OBSERVATIONAL
Enrollment
334
200 mg emtricitabine/300 mg tenofovir disoproxil fumarate taken orally daily. A combination drug of two nucleoside reverse transcriptase inhibitors (NRTIs). Other Name: TDF/FTC
100 mg taken orally once daily. A protease inhibitor (PI). Other Name: RTV
300 mg taken orally once daily. A protease inhibitor (PI). Other Name: ATV
400 mg taken orally twice daily. An integrase inhibitor (INI). Other Name: RAL
100 mg taken orally once daily. A protease inhibitor (PI). Other Name: RTV
USC CRS
Los Angeles, California, United States
UCLA CARE Center CRS
Los Angeles, California, United States
Ucsf Aids Crs
San Francisco, California, United States
Harbor - UCLA Med. Ctr. CRS
Torrance, California, United States
University of Colorado Hospital CRS (6101)
Aurora, Colorado, United States
The Ponce de Leon Center
Atlanta, Georgia, United States
Northwestern University CRS (2701)
Chicago, Illinois, United States
Rush University Medical Center (2702)
Chicago, Illinois, United States
Johns Hopkins Adult AIDS CRS
Baltimore, Maryland, United States
Brigham and Women's Hosp. ACTG CRS
Boston, Massachusetts, United States
...and 16 more locations
Annual Rate of Change in Right Common Carotid Artery Intima-media Thickness (CIMT)
Right common carotid artery intima-media thickness was measured by ultrasound scan at study entry and weeks 48, 96 and 144. The annual rate of change in right common carotid artery intima-media thickness (CIMT) was estimated over 144 weeks from study entry using mixed effects linear regression model that adjusted for screening HIV-1 RNA level and Framingham risk score stratification factors.
Time frame: Study entry, week 144
Change in Brachial Artery (BA) Flow Mediated Dilation (FMD) From Study Entry to Week 24
Brachial artery flow mediated dilation was measured by brachial artery reactivity tests. All results reflect measures captured from participants who reported fasting and not smoking for at least 8 hours prior to FMD assessments. The change from study entry to week 24 in brachial artery FMD (%) was defined as the maximum FMD (%) calculated from resting heart rate (RH) 60 seconds and RH 90 seconds, relative to resting brachial artery diameter.
Time frame: Study entry, week 24
Change in Brachial Artery Flow Mediated Dilation (FMD) From Study Entry to Weeks 4 and 48
Brachial artery flow mediated dilation was measured by brachial artery reactivity tests. All results reflect measures captured from participants who reported fasting and not smoking for at least 8 hours prior to FMD assessments. The change from study entry to weeks 4 and 48 in brachial artery FMD (%) was defined as the maximum FMD (%) calculated from resting heart rate (RH) 60 seconds and RH 90 seconds, relative to resting brachial artery diameter.
Time frame: Study entry, weeks 4 and 48
Change in Absolute Flow Mediated Dilation (FMD) From Study Entry to Weeks 4, 24 and 48
The change in absolute FMD was defined as the maximum absolute FMD from the RH 60 and 90 second measurements, from study entry to weeks 4, 24, and 48 (unit of measure millimeters). All results reflect measures captured from participants who reported fasting and not smoking for at least 8 hours prior to FMD assessments.
Time frame: Study entry, weeks 4, 24 and 48
Percent Change in Bone Mineral Density (BMD) of the Hip From Study Entry to Week 96
Bone mineral density (BMD) of the hip was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and study week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Bone Mineral Density (BMD) of the Lumber Spine From Study Entry to Week 96
Bone mineral density (BMD) of the lumber spine was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and study week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Bone Mineral Density (BMD) of the Total Body From Study Entry to Week 96
Bone mineral density (BMD) of the total body was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and study week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Total Limb Fat From Study Entry to Week 96
Total limb fat was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Trunk Fat From Study Entry to Week 96
Trunk fat was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Lean Mass From Study Entry to Week 96
Lean mass was evaluated by dual-energy x-ray absorptiometry (DXA) scans at study entry and week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Visceral Abdominal Fat (VAT) From Study Entry to Week 96
Visceral abdominal fat (VAT) was evaluated by single slice abdominal computerized tomography scans at study entry and week 96. The percent change was calculated as as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
Percent Change in Subcutaneous Abdominal Fat (SAT) From Study Entry to Week 96
Subcutaneous abdominal fat (SAT) was evaluated by single slice abdominal computerized tomography scans at study entry and week 96. The percent change was calculated as ((week 96 value - study entry value) / study entry value)) x 100.
Time frame: Study entry, week 96
CD4+ T-cell Count at Study Entry and Weeks 24, 48, 96 and 144
The absolute levels of CD4+ T-cell counts (cells/mm\^3) measured at study entry and weeks 24, 48, 96 and 144.
Time frame: Study entry, weeks 24, 48, 96 and 144
Change in CD4+ T-cell Count From Study Entry to Weeks 24, 48, 96 and 144
Change was calculated as (CD4+ T-cell count at week 24, 48, 96, or 144) - (CD4+ T-cell count at study entry).
Time frame: Study entry to weeks 24, 48, 96, and 144
Change in Fasting Total Cholesterol (TC) From Study Entry to Weeks 4, 24, 48 and 96
Total cholesterol (TC, unit of measure mg/dL) was measured at study entry and weeks 4, 24, 48 and 96 from participants who reported fasting for at least 8 hours prior to assessment; all results were centrally laboratory tested in batch. Change in TC was calculated as (week 4, 24, 48 or 96 result) - (study entry result).
Time frame: Study entry, weeks 4, 24, 48 and 96
Change in Fasting Triglyceride (TG) From Study Entry to Weeks 4, 24, 48 and 96
Triglyceride (TG, unit of measure mg/dL) was measured at study entry and weeks 4, 24, 48 and 96 from participants who reported fasting for at least 8 hours prior to assessment; all results were centrally laboratory tested in batch. Change in TG was calculated as (week 4, 24, 48 or 96 result) - (study entry result).
Time frame: Study entry, weeks 4, 24, 48 and 96
Change in Fasting High-density Lipoprotein Cholesterol (HDL-C) From Study Entry to Weeks 4, 24, 48 and 96
HDL cholesterol (unit of measure mg/dL) was measured at study entry and weeks 4, 24, 48 and 96 from participants who reported fasting for at least 8 hours prior to assessment; all results were centrally laboratory tested in batch. Change in HDL-C was calculated as (week 4, 24, 48 or 96 result) - (study entry result).
Time frame: Study entry, weeks 4, 24, 48 and 96
Change in Fasting Calculated Low-density Lipoprotein Cholesterol (LDL-C) From Study Entry to Weeks 4, 24, 48 and 96
Calculated LDL-C (unit of measure mg/dL) was measured at study entry and weeks 4, 24, 48 and 96 from participants who reported fasting for at least 8 hours prior to assessment; all results were centrally laboratory tested in batch. Change in calculated LDL-C was calculated as (week 4, 24, 48 or 96 result) - (study entry result).
Time frame: Study entry, weeks 4, 24, 48 and 96
Change in Fasting Glucose Level From Study Entry to Weeks 4, 24, 48 and 96
Glucose (unit of measure mg/dL) was measured at study entry and weeks 4, 24, 48 and 96; all results reflect measures captured from participants who reported fasting for at least 8 hours prior to assessment. Change was calculated as (fasting result during at week 4, 24, 48 or 96) - (fasting result at study entry).
Time frame: Study entry, weeks 4, 24, 48 and 96
Change in Fasting Insulin Level From Study Entry to Weeks 4, 24, 48 and 96
Insulin (unit of measure uIU/dL) was measured at study entry and weeks 4, 24, 48 and 96; all results reflect measures captured from participants who reported fasting for at least 8 hours prior to assessment. Change was calculated as (fasting result during at week 4, 24, 48 or 96) - (fasting result at study entry).
Time frame: Study entry, weeks 4, 24, 48 and 96
Fold Change in D-dimer From Study Entry to Weeks 48 and 96
D-dimer was measured at study entry and weeks 48 and 96 (unit of measure ug/ml). Fold change from study entry to week 48 or week 96 was calculated as (week 48 value or week 96 value) / (study entry value). Results identified above or below the limit of quantification were imputed at the quantification limit of the respective assay.
Time frame: Study entry, weeks 48 and 96
Fold Change in High Sensitivity C-reactive Protein (hsCRP) From Study Entry to Weeks 48 and 96
hsCRP was measured at study entry and weeks 48 and 96 (unit of measure ug/ml). Fold change from study entry to week 48 or week 96 was calculated as (week 48 value or week 96 value) / (study entry value). Results identified above or below the limit of quantification were imputed at the quantification limit of the respective assay.
Time frame: Study entry, weeks 48 and 96
Fold Change in Interleukin-6 (IL-6) From Study Entry to Weeks 48 and 96
IL-6 was measured at study entry and weeks 48 and 96 (unit of measure pg/ml). Fold change from study entry to week 48 or week 96 was calculated as (week 48 value or week 96 value) / (study entry value). Results identified above or below the limit of quantification were imputed at the quantification limit of the respective assay.
Time frame: Study entry, weeks 48 and 96
Fold Change in Soluble CD14 From Study Entry to Weeks 48 and 96
Soluble CD14 was measured at study entry and weeks 48 and 96 (unit of measure ng/ml). Fold change from study entry to week 48 or week 96 was calculated as (week 48 value or week 96 value) / (study entry value). Results identified above or below the limit of quantification were imputed at the quantification limit of the respective assay.
Time frame: Study entry, weeks 48 and 96
Fold Change in Soluble CD163 From Study Entry to Weeks 48 and 96
Soluble CD163 was measured at study entry and weeks 48 and 96 (unit of measure ng/ml). Fold change from study entry to week 48 or week 96 was calculated as (week 48 value or week 96 value) / (study entry value). Results identified above or below the limit of quantification were imputed at the quantification limit of the respective assay.
Time frame: Study entry, weeks 48 and 96
Fold Change in Percent Expression of CD38+HLADR+ on CD4+ (Percent) From Study Entry to Weeks 24 and 96
Percent expression of CD38+HLADR+ on CD4+ was measured at study entry and weeks 24 and 96 (unit of measure percent). Fold change from study entry to week 24 or week 96 was calculated as (week 24 value or week 96 value) / (study entry value).
Time frame: Study entry, weeks 24 and 96
Fold Change in Percent Expression of CD38+HLADR+ on CD8+ (Percent) From Study Entry to Weeks 24 and 96
Percent expression of CD38+HLADR+ on CD8+ was measured at study entry and weeks 24 and 96 (unit of measure percent). Fold change from study entry to week 24 or week 96 was calculated as (week 24 value or week 96 value) / (study entry value).
Time frame: Study entry, weeks 24 and 96
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