AzTrials
AzTrials

Infection, Human Immunodeficiency Virus IPhase 4ASSERTNCT00549198

KIVEXA Vs TRUVADA, Both Administered With Efavirenz, In ART-Naive Subjects

A Phase 4 study testing Abacavir/lamivudine and efavirenz and Tenofovir/Emtricitabine and efavirenz in people with Infection, Human Immunodeficiency Virus I and HIV Infection, run by GlaxoSmithKline at 68 sites in 13 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Recently, the fixed-dose combinations (FDC) KIVEXA™ (abacavir/lamivudine) and TRUVADA (tenofovir disoproxil fumarate/emtricitabine) have facilitated the usage of once-daily regimens. However data from head-to-head randomized trials comparing these two FDCs as part of an initial regimen are not available at present. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Abacavir/lamivudine and efavirenz and Tenofovir/Emtricitabine and efavirenz
Could I receive a placebo?
No, everyone receives an active treatment
How many people
392 participants
Where
68 sitesin 13 countries
Study dates
Jun 2007to Dec 2009
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is at least 18 years of age.
  • Subject is antiretroviral-naïve (defined as having no previous therapy with any NNRTI and 14 days of prior therapy with any other antiretroviral).
  • Subject has plasma HIV-1 RNA 1,000 copies/mL at screening. This test may be repeated once within the 45-day screening window.
  • Subject is willing and able to understand and provide written informed consent prior to participation in this study.
  • A female is eligible to enter and participate in the study if she is of:
  • Non-childbearing potential (i.e., physiologically incapable of becoming pregnant, including any female who is post-menopausal); or,
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  • Child-bearing potential, has a negative pregnancy test at screen and agrees to one of the following methods of contraception (any contraception method must be used consistently and correctly, i.e., in accordance with both the approved product label and the instructions of a physician):
  • Complete abstinence from intercourse from 2 weeks prior to administration of the investigational products, throughout the study, and for at least 2 weeks after discontinuation of all study medications Double barrier method (male condom/spermicide, male condom/diaphragm, diaphragm/spermicide). Hormonal contraception will not be considered adequate for inclusion into this study Any intrauterine device (IUD) with published data showing that the expected failure rate is <1% per year.
  • Sterilization (female subject or male partner of female subject).
  • Prior to randomization, subjects must have been screened and be negative for the HLA-B*5701 allele. Test may be performed by local laboratory and results must be available for source document verification according to local practices.

Who cannot join

  • Subject is in the initial acute phase of a CDC Clinical Category C infection at Baseline.
  • Subject is enrolled in one or more investigational drug protocols, which may impact HIV RNA suppression.
  • Subject is, in the opinion of the Investigator, unable to complete the study dosing period and protocol evaluations and assessments.
  • Subject is either pregnant or breastfeeding.
  • Subject suffers from a serious medical condition, which in the opinion of the Investigator would compromise the safety of the subject.
  • Subject has a history of inflammatory bowel disease or other gastrointestinal dysfunction.
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  • Subject has any acute laboratory abnormality at screening.
  • Subject has an estimated creatinine clearance within the screening period <50mL/min via the Cockcroft-Gault method.
  • Alanine aminotransferase (ALT) >5 times the upper limit of normal.
  • Subjects with a history of thyroid disease, hyperparathyroid disease, chronic hyper or hypocalcemia, vitamin D deficiency, or receiving thyroid hormone or parathyroid hormone replacement within 28 days prior to screening.
  • Subjects with a history of systemic inflammatory arthritis.
  • Subjects who are hepatitis B positive at screening.
  • Subject requires treatment with radiation therapy or cytotoxic chemotherapeutic agents.
  • Subject has received treatment with an HIV-1 immunotherapeutic vaccine or any agents with documented activity against HIV-1 in vitro within 28 days prior to Screening, or an anticipated need during the study.
  • Subjects who require treatment with any of the following medications within 28 days of commencement of investigational product, or an anticipated need during the study:
  • Medications with significant drug-drug interactions with efavirenz:voriconazole, terfenadine, astemizole, cisapride, ergot alkaloids (dihydroergotamine, ergonovine, ergotamine, methylergonovine), midazolam, triazolam, St. John's wort, carbamazepine, phenytoin, phenobarbital, rifampin, pimozide, bepridil
  • Medications which may impact on bone mineral density: oral or systemic corticosteroids, anticonvulsants, heparin, warfarin, cyclosporine, bisphosphonates, calcitonin, parathyroid hormone, Vitamin D supplements and analogues, Calcium supplements, oestrogen or progesterone replacement (oral hormonal contraception permitted), raloxifene, tamoxifen, testosterone or anabolic steroid replacement/supplements.
  • Systemic interleukins or interferons
  • Subject has a history of allergy to any of the protocol-specified medications or any excipients therein.
  • Subject has evidence of genotypic resistance at screening (according to central lab interpretation) or prior documented evidence of genotypic and/or phenotypic (above threshold for reduced susceptibility) resistance to any of the following drugs: efavirenz, abacavir, lamivudine, tenofovir, emtricitabine.
  • Subjects who are unsuitable for DEXA scanning should be excluded, including 1) Less than three vertebra in the range of L1 to L4 that are suitable for BMD measurement by DEXA, or 2) Bilateral hip replacement.
  • The subject has previously participated in an experimental drug and/or vaccine trial(s) within 60 days or 5 half-lives, or twice the duration of the biological effect of the experimental drug or vaccine - whichever is longer, prior to screening for the study.
  • The subject will participate simultaneously in another clinical study.

Trial locations and contacts

68 sites in 13 countries.

68 sites in 13 countries

United Kingdom16 sites
  • GSK Investigational Site

    Birmingham, B4 6DH

  • GSK Investigational Site

    Birmingham, WS2 9PS

  • GSK Investigational Site

    Brighton, Sussex East, BN2 1ES

  • GSK Investigational Site

    Edinburgh, Midlothian, EH4 2XU

  • GSK Investigational Site

    Farnworth, Bolton, BL4 0JR

  • GSK Investigational Site

    Gloucester, GL1 3NN

  • GSK Investigational Site

    Leicester, LE1 5WW

  • GSK Investigational Site

    London, E1 1BB

  • GSK Investigational Site

    London, N18 1QX

  • GSK Investigational Site

    London, NW3 2QG

  • GSK Investigational Site

    London, SW10 9TH

  • GSK Investigational Site

    London, SW17 0QT

  • GSK Investigational Site

    Manchester, Lancashire, M8 5RB

  • GSK Investigational Site

    Middlesbrough, TS4 3BW

  • GSK Investigational Site

    Sheffield, S10 2JF

  • GSK Investigational Site

    Woolwich, London, London, SE18 4QH

Other trials in United Kingdom

Germany10 sites
  • GSK Investigational Site

    Berlin, State of Berlin, 13353

  • GSK Investigational Site

    Düsseldorf, North Rhine-Westphalia, 40237

  • GSK Investigational Site

    Essen, North Rhine-Westphalia, 45122

  • GSK Investigational Site

    Hamburg, Free and Hanseatic City of Hamburg, 20146

  • GSK Investigational Site

    Hamburg, Free and Hanseatic City of Hamburg, 20246

  • GSK Investigational Site

    Hanover, Lower Saxony, 30159

  • GSK Investigational Site

    Hanover, Lower Saxony, 30625

  • GSK Investigational Site

    Heidelberg, Baden-Wurttemberg, 69115

  • GSK Investigational Site

    Leipzig, Saxony, 04170

  • GSK Investigational Site

    Munich, Bavaria, 80335

Other trials in Germany

Italy8 sites
  • GSK Investigational Site

    Ferrara, Emilia-Romagna, 44100

  • GSK Investigational Site

    Legnano (MI, Lombardy, 20025

  • GSK Investigational Site

    Milan, Lombardy, 20127

  • GSK Investigational Site

    Milan, Lombardy, 20142

  • GSK Investigational Site

    Modena, Emilia-Romagna, 41100

  • GSK Investigational Site

    Rimini, Emilia-Romagna, 47900

  • GSK Investigational Site

    Rome, Lazio, 00149

  • GSK Investigational Site

    Turin, Piedmont, 10149

Other trials in Italy

Switzerland6 sites
  • GSK Investigational Site

    Basel, 4031

  • GSK Investigational Site

    Bern, 3010

  • GSK Investigational Site

    Lausanne, 1011

  • GSK Investigational Site

    Sankt Gallen, 9007

  • GSK Investigational Site

    Zurich, 8038

  • GSK Investigational Site

    Zurich, 8091

Other trials in Switzerland

Belgium5 sites
  • GSK Investigational Site

    Bruges, 8000

  • GSK Investigational Site

    Brussels, 1000

  • GSK Investigational Site

    Charleroi, 6000

  • GSK Investigational Site

    Ghent, 9000

  • GSK Investigational Site

    Leuven, 3000

Other trials in Belgium

Denmark5 sites
  • GSK Investigational Site

    Aalborg, DK-9000

  • GSK Investigational Site

    Aarhus N, 8200

  • GSK Investigational Site

    Copenhagen, DK-2100

  • GSK Investigational Site

    Hvidovre, DK-2650

  • GSK Investigational Site

    Odense C, 5000

Other trials in Denmark

Netherlands5 sites
  • GSK Investigational Site

    Alkmaar, 1815 JD

  • GSK Investigational Site

    Groningen, 9713 GZ

  • GSK Investigational Site

    Rotterdam, 3078 HT

  • GSK Investigational Site

    The Hague, 2512 VA

  • GSK Investigational Site

    Utrecht, 3584 CX

Other trials in Netherlands

Austria4 sites
  • GSK Investigational Site

    Innsbruck, A-6020

  • GSK Investigational Site

    Salzburg, A-5020

  • GSK Investigational Site

    Vienna, A-1090

  • GSK Investigational Site

    Vienna, A-1140

Other trials in Austria

France3 sites
  • GSK Investigational Site

    Garches, 92380

  • GSK Investigational Site

    Levallois-Perret, 92300

  • GSK Investigational Site

    Saint-Denis, 93205

Other trials in France

Ireland2 sites
  • GSK Investigational Site

    Dublin, 7

  • GSK Investigational Site

    Dublin, 8

Other trials in Ireland

Spain2 sites
  • GSK Investigational Site

    Madrid, 28034

  • GSK Investigational Site

    Valencia, 46015

Other trials in Spain

Latvia1 site
  • GSK Investigational Site

    Riga, LV 1006

Other trials in Latvia

Portugal1 site
  • GSK Investigational Site

    Amadora, 2720-276

Other trials in Portugal

About this study

Official title: Study of Once-Daily Abacavir/Lamivudine Versus Tenofovir/Emtricitabine, Administered With Efavirenz in Antiretroviral-Naive, HIV-1 Infected Adult Subjects

Recently, the fixed-dose combinations (FDC) KIVEXA™ (abacavir/lamivudine) and TRUVADA (tenofovir disoproxil fumarate/emtricitabine) have facilitated the usage of once-daily regimens. However data from head-to-head randomized trials comparing these two FDCs as part of an initial regimen are not available at present. The long-term toxicity profiles of these regimens are of particular importance, as treatment of HIV is currently life-long and therefore, minimizing long-term toxicity and maximizing adherence and duration of regimen maintenance are critical therapy objectives.

The primary endpoint is estimated glomerular filtration rate (GFR), as measured by the modified diet in renal disease (MDRD) equation, a validated estimate of renal function.

Read the detailed description

ViiV Healthcare is the new sponsor of this study, and GlaxoSmithKline is in the process of updating systems to reflect the change in sponsorship.

Being tested
Abacavir/lamivudine and efavirenz, Tenofovir/Emtricitabine and efavirenz
Keywords
tenofovir, HIV, efavirenz, naive, lamivudine, abacavir, emtricitabine, renal
Medical subject headings
Infections, HIV Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Abacavir/lamivudine and efavirenzDrug

  • Tenofovir/Emtricitabine and efavirenzDrug

Study groups in NCT00549198
Study groupRoleWhat they receive
ABC/3TC + EFVExperimentalNot described
Receives: Drug: Abacavir/lamivudine and efavirenz
TDF/FTC + EFVActive comparatorNot described
Receives: Drug: Tenofovir/Emtricitabine and efavirenz

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Change From Baseline in Estimated Glomerular Filtration Rate (GFR), Calculated by Modification of Diet in Renal Disease (MDRD) Equation, at Week 48

    Change from baseline was calculated as the Week 48 value minus the baseline value. GFR is a measure of the rate at which blood is filtered by the kidney. MDRD is an equation (calculation) used to estimate GFR in participants with impaired renal function based on serum creatinine, age, race, and gender. GFR (mL/min/1.73 m^2) = 175 * (Scr)^-1.154 * (Age)^-0.203 * (0.742 if female) * (1.212 if African American) (conventional units). mL, milliliters; min, minute; m^2, meters squared; Scr, serum creatinine; BMI, body mass index.

    Measured: Baseline, Week 48

Secondary outcomes (49)
  1. Mean Change From Baseline in Estimated Glomerular Filtration Rate (GFR), Calculated by Modification of Diet in Renal Disease (MDRD) Equation, at Week 24

    Change from baseline was calculated as the Week 24 value minus the baseline value. GFR is a measure of the rate at which blood is filtered by the kidney. MDRD is an equation (calculation) used to estimate GFR in participants with impaired renal function based on serum creatinine, age, race, and gender. GFR (mL/min/1.73 m^2) = 175 * (Scr)^-1.154 * (Age)^-0.203 * (0.742 if female) * (1.212 if African American) (conventional units). mL, milliliters; min, minute; m^2, meters squared; Scr, serum creatinine.

    Measured: Baseline, Week 24

  2. Mean Change From Baseline in Estimated Glomerular Filtration Rate (GFR), Calculated by Modification of Diet in Renal Disease (MDRD) Equation, at Week 96

    Change from baseline was calculated as the Week 96 value minus the baseline value. GFR is a measure of the rate at which blood is filtered by the kidney. MDRD is an equation (calculation) used to estimate GFR in participants with impaired renal function based on serum creatinine, age, race, and gender. GFR (mL/min/1.73 m^2) = 175 * (Scr)^-1.154 * (Age)^-0.203 * (0.742 if female) * (1.212 if African American) (conventional units). mL, milliliters; min, minute; m^s, meters squared; Scr, serum creatinine.

    Measured: Baseline, Week 96

  3. Mean Change From Baseline in Estimated GFR, Calculated by Cockcroft-Gault Equation, at Week 24

    Change from baseline was calculated as the Week 24 value minus the baseline value. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. GFR = (140 - age) * (mass in kg) * (0.85 if female) divided by 72 * serum creatinine in mg/dL. mg, milligram; dL, deciliter; kg, kilogram; CG, Cockcroft-Gault.

    Measured: Baseline, Week 24

  4. Mean Change From Baseline in Estimated GFR, Calculated by Cockcroft-Gault Equation, at Week 48

    Change from baseline was calculated as the Week 48 value minus the baseline value. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. GFR = (140 - age) * (mass in kg) * (0.85 if female) divided by 72 * serum creatinine in mg/dL. mg, milligram; dL, deciliter; kg, kilogram.

    Measured: Baseline, Week 48

  5. Mean Change From Baseline in Estimated GFR, Calculated by Cockcroft-Gault Equation, at Week 96

    Change from baseline was calculated as the Week 96 value minus the baseline value. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. GFR = (140 - age) * (mass in kg) * (0.85 if female) divided by 72 * serum creatinine in mg/dL. mg, milligram; dL, deciliter; kg, kilogram.

    Measured: Baseline, Week 96

  6. Number of Participants With Decline From Baseline in Estimated GFR, Calculated by MDRD and Cockcroft-Gault Equations, of >=10 mL/Min/1.73 m^2 (mL/Min for Cockcroft-Gault), >=20 mL/Min/1.72 m^2, >=10%, and >=20% at Week 24

    mL, milliliter; min, minute; m^2, meters squared

    Measured: Baseline, Week 24

  7. Number of Participants With Decline From Baseline in Estimated GFR, Calculated by MDRD and Cockcroft-Gault Equations, of >=10 mL/Min/1.73m^2 (mL/Min for Cockcroft-Gault), >=20 mL/Min/1.72m^2, >=10%, and >=20% at Week 48

    mL, milliliter; min, minute; m^2, meters squared

    Measured: Baseline, Week 48

  8. Number of Participants With Decline From Baseline in Estimated GFR, Calculated by MDRD and Cockcroft-Gault Equations, of >=10 mL/Min/1.73m^2 (mL/Min for Cockcroft-Gault), >=20 mL/Min/1.72m^2, >=10%, and >=20% at Week 96

    mL, milliliter; min, minute; m^2, meters squared

    Measured: Baseline, Week 96

  9. Number of Participants With National Kidney Foundation Chronic Kidney Disease Stage 1, 2, 3, 4, or 5 Categories of Renal Function at Week 24

    Normal: GFR >=60 mL/min/1.73 m^2 and creatinine ratio <=200 mg/g GFR; Stage 1: GFR >=90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 2: GFR >=60-<90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 3: GFR >=30-<60 mL/min/1.73 m^2; Stage 4: GFR >=15-<30 mL/min/1.73 m^2; Stage 5: GFR <15 mL/min/1.73 m^2. mL, milliliter; min, minute; m^2, meters squared; mg, milligram; g, gram.

    Measured: Baseline, Week 24

  10. Number of Participants With National Kidney Foundation Chronic Kidney Disease Stage 1, 2, 3, 4, or 5 Categories of Renal Function at Week 48

    Normal: GFR >=60 mL/min/1.73 m^2 and creatinine ratio <=200 mg/g GFR; Stage 1: GFR >=90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 2: GFR >=60-<90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 3: GFR >=30-<60 mL/min/1.73 m^2; Stage 4: GFR >=15-<30 mL/min/1.73 m^2; Stage 5: GFR <15 mL/min/1.73 m^2. mL, milliliter; min, minute; m^2, meters squared; mg, milligram; g, gram.

    Measured: Baseline, Week 48

  11. Number of Participants With National Kidney Foundation Chronic Kidney Disease Stage 1, 2, 3, 4, or 5 Categories of Renal Function at Week 96

    Normal: GFR >=60 mL/min/1.73 m^2 and creatinine ratio <=200 mg/g GFR; Stage 1: GFR >=90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 2: GFR >=60-<90 mL/min/1.73 m^2 and creatinine ratio >200 mg/g; Stage 3: GFR >=30-<60 mL/min/1.73 m^2; Stage 4: GFR >=15-<30 mL/min/1.73 m^2; Stage 5: GFR <15 mL/min/1.73 m^2. mL, milliliter; min, minute; m^2, meters squared; mg, milligram; g, gram.

    Measured: Baseline, Week 96

  12. Percent Change From Baseline in Lumbar Spine Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 24

    BMD is a measure (grams [g] per centimeters cubed [cm^3]) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 24

  13. Percent Change From Baseline in Hip Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 24

    BMD is a measure (grams per cm^3) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 24

  14. Percent Change From Baseline in Lumbar Spine Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 48

    BMD is a measure (grams per cm^3) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 48

  15. Percent Change From Baseline in Hip Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 48

    BMD is a measure (grams per cm^3) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 48

  16. Percent Change From Baseline in Lumbar Spine Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 96

    BMD is a measure (grams per cm^3) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 96

  17. Percent Change From Baseline in Hip Bone Mineral Density (BMD), Measured by Dual-energy X-ray Absorptiometry (DXA), at Week 96

    BMD is a measure (grams per cm^3) of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones. The standard error (SE) of both treatment groups was based on the model on the log scale.

    Measured: Baseline, Week 96

  18. Number of Participants With a Decline From Baseline in Lumbar Spine and Hip Bone Mineral Density (BMD) >=2.0% and >=6.0% at Week 24

    BMD is a measure of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones.

    Measured: Baseline, Week 24

  19. Number of Participants With a Decline From Baseline in Lumbar Spine and Hip Bone Mineral Density (BMD) >=2.0% and >=6.0% at Week 48

    BMD is a measure of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones.

    Measured: Baseline, Week 48

  20. Number of Participants With a Decline From Baseline in Lumbar Spine and Hip Bone Mineral Density (BMD) >=2.0% and >=6.0% at Week 96

    BMD is a measure of the mineral content of bone in a particular skeletal area. DXA scans use low energy x-rays to measure the density of bones.

    Measured: Baseline, Week 96

  21. Number of Participants Meeting World Health Organization (WHO) Criteria for Osteopenia (T-score of -2.5 to -1.0) and Osteoporosis (T-score of <-2.5) at Week 24

    The T-score is a radiographic diagnosis that compares bone mineral density (BMD) to that of a "normal, healthy, 30-year-old female". The lower the T-score, the lower the BMD. A T-score of +1 to -1 is normal. A T-score decrease of -1 indicates a 10%-15% decrease in BMD.

    Measured: Week 24

  22. Number of Participants Meeting World Health Organization (WHO) Criteria for Osteopenia (T-score of -2.5 to -1.0) and Osteoporosis (T-score of <-2.5) at Week 48

    The T-score is a radiographic diagnosis that compares bone mineral density (BMD) to that of a "normal, healthy, 30-year-old female". The lower the T-score, the lower the BMD. A T-score of +1 to -1 is normal. A T-score decrease of -1 indicates a 10%-15% decrease in BMD.

    Measured: Week 48

  23. Number of Participants Meeting World Health Organization (WHO) Criteria for Osteopenia (T-score of -2.5 to -1.0) and Osteoporosis (T-score of <-2.5) at Week 96

    The T-score is a radiographic diagnosis that compares bone mineral density (BMD) to that of a "normal, healthy, 30-year-old female". The lower the T-score, the lower the BMD. A T-score of +1 to -1 is normal. A T-score decrease of -1 indicates a 10%-15% decrease in BMD.

    Measured: Week 96

  24. Number of Participants Experiencing an Adverse Event (AE) Leading to Discontinuation by Week 24

    An adverse event was any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Adverse events occurring in two or more participants are presented.

    Measured: Baseline to Week 24

  25. Number of Participants Experiencing an Adverse Event (AE) Leading to Discontinuation by Week 48

    An adverse event was any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Adverse events occurring in two or more participants are presented.

    Measured: Baseline to Week 48

  26. Number of Participants Experiencing an Adverse Event (AE) Leading to Discontinuation by Week 96

    An adverse event was any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Adverse events occurring in two or more participants are presented.

    Measured: Baseline to Week 96

  27. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Total Cholesterol at Week 24

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <200 mg/dL, desirable; 200-<240 mg/dL, borderline high; >=240 mg/dL, high. mg, milligram; dL, deciliter.

    Measured: Baseline, Week 24

  28. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Total Cholesterol at Week 48

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <200 mg/dL, desirable; 200-<240 mg/dL, borderline high; >=240 mg/dL, high. mg, milligram; dL, deciliter.

    Measured: Baseline, Week 48

  29. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Total Cholesterol at Week 96

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <200 mg/dL, desirable; 200-<240 mg/dL, borderline high; >=240 mg/dL, high. mg, milligram; dL, deciliter.

    Measured: Baseline, Week 96

  30. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Low-density Lipoprotein (LDL) at Week 24

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <100 mg/dL, optimal; 100-<130 mg/dL, near/above optimal; 130-<160 mg/dL, borderline high; 160-<190 mg/dL, high; >=190 mg/dL, very high.

    Measured: Baseline, Week 24

  31. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Low-density Lipoprotein (LDL) at Week 48

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <100 mg/dL, optimal; 100-<130 mg/dL, near/above optimal; 130-<160 mg/dL, borderline high; 160-<190 mg/dL, high; >=190 mg/dL, very high.

    Measured: Baseline, Week 48

  32. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Low-density Lipoprotein (LDL) at Week 96

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <100 mg/dL, optimal; 100-<130 mg/dL, near/above optimal; 130-<160 mg/dL, borderline high; 160-<190 mg/dL, high; >=190 mg/dL, very high.

    Measured: Baseline, Week 96

  33. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting High-density Lipoprotein (HDL) at Week 24

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <40 mg/dL, low; 40-<60 mg/dL, normal; >=60 mg/dL, high.

    Measured: Baseline, Week 24

  34. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting High-density Lipoprotein (HDL) at Week 48

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <40 mg/dL, low; 40-<60 mg/dL, normal; >=60 mg/dL, high.

    Measured: Baseline, Week 48

  35. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting High-density Lipoprotein (HDL) at Week 96

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <40 mg/dL, low; 40-<60 mg/dL, normal; >=60 mg/dL, high.

    Measured: Baseline, Week 96

  36. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Triglycerides at Week 24

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <150 mg/dL, normal; 150-<200 mg/dL, borderline high; 200-<500 mg/dL, high; >=500 mg/dL, very high.

    Measured: Baseline, Week 24

  37. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Triglycerides at Week 48

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <150 mg/dL, normal; 150-<200 mg/dL, borderline high; 200-<500 mg/dL, high; >=500 mg/dL, very high.

    Measured: Baseline, Week 48

  38. Number of Participants With the Indicated Change From Baseline in National Cholesterol Education Program (NCEP) Thresholds for Fasting Triglycerides at Week 96

    Blood samples were collected from participants for analysis of their lipid profile. Data are categorized by the maximum post-baseline threshold reached. <150 mg/dL, normal; 150->200 mg/dL, borderline high; 200-<500 mg/dL, high;>= 500 mg/dL, very high.

    Measured: Baseline, Week 96

  39. Number of Participants With the Indicated Treatment-emergent Division of AIDS (DAIDS) Toxicities at Week 24

    The DAIDS toxicity table provides descriptive terminology for grading the severity of adult adverse events. Laboratory grades also provide ranges for each parameter. Grade 1: mild, Grade 2: moderate, Grade 3: severe, Grade 4: potentially life-threatening. LDL, low-density lipid; HDL, high-density lipid. Treatment emergent refers to any toxicity that was not present prior to the start of study drug treatment.

    Measured: Week 24

  40. Number of Participants With the Indicated Treatment-emergent Division of AIDS (DAIDS) Toxicities at Week 48

    The DAIDS toxicity table provides descriptive terminology for grading the severity of adult adverse events. Laboratory grades also provide ranges for each parameter. Grade 1: mild, Grade 2: moderate, Grade 3: severe, Grade 4: potentially life-threatening. LDL, low-density lipid; HDL, high-density lipid. Treatment emergent refers to any toxicity that was not present prior to the start of study drug treatment.

    Measured: Week 48

  41. Number of Participants With the Indicated Treatment-emergent Division of AIDS (DAIDS) Toxicities at Week 96

    The DAIDS toxicity table provides descriptive terminology for grading the severity of adult adverse events. Laboratory grades also provide ranges for each parameter. Grade 1: mild, Grade 2: moderate, Grade 3: severe, Grade 4: potentially life-threatening. LDL, low-density lipid; HDL, high-density lipid. Treatment emergent refers to any toxicity that was not present prior to the start of study drug therapy.

    Measured: Week 96

  42. Number of Participants With HIV-1 RNA <50 Copies/Milliliter (c/mL) and 400 c/mL at Week 24

    HIV-1 RNA level (viral load) is a strong predictor of the rate of HIV disease progression. It was measured from plasma (participant blood samples) taken at all visits throughout the study. HIV, human immunodeficiency virus; RNA, ribonucleic acid. Viral load is a measure of the severity of the HIV infection.

    Measured: Week 24

  43. Number of Participants With HIV-1 RNA <50 Copies/Milliliter (c/mL) and 400 c/mL at Week 48

    HIV-1 RNA level (viral load) is a strong predictor of the rate of HIV disease progression. It was measured from plasma (participant blood samples) taken at all visits throughout the study. HIV, human immunodeficiency virus; RNA, ribonucleic acid. Viral load is a measure of the severity of the HIV infection.

    Measured: Week 48

  44. Number of Participants With HIV-1 RNA <50 Copies/Milliliter (c/mL) and 400 c/mL at Week 96

    HIV-1 RNA level (viral load) is a strong predictor of the rate of HIV disease progression. It was measured from plasma (participant blood samples) taken at all visits throughout the study. HIV, human immunodeficiency virus; RNA, ribonucleic acid. Viral load is a measure of the severity of the HIV infection.

    Measured: Week 96

  45. Change From Baseline in Cluster Difference 4 (CD4+) Cell Count at Week 24

    CD4+ counts are used to monitor the progression of HIV disease and the strength of the immune system. The number of CD4+ cells decreases as HIV disease progresses. Cell counts were measured from participant blood samples taken throughout the study.

    Measured: Baseline, Week 24

  46. Change From Baseline in Cluster Difference 4 (CD4+) Cell Count at Week 48

    CD4+ counts are used to monitor the progression of HIV disease and the strength of the immune system. The number of CD4+ cells decreases as HIV disease progresses. Cell counts were measured from participant blood samples taken throughout the study.

    Measured: Baseline, Week 48

  47. Change From Baseline in Cluster Difference 4 (CD4+) Cell Count at Week 96

    CD4+ counts are used to monitor the progression of HIV disease and the strength of the immune system. The number of CD4+ cells decreases as HIV disease progresses. Cell counts were measured from participant blood samples taken throughout the study.

    Measured: Baseline, Week 96

  48. Number of Participants Classified as Protocol-defined Failures With Treatment-emergent Resistance to Study Drug in the Indicated Viruses at Week 96

    Viral resistance was measured using blood samples collected from participants throughout the study. NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor. Virological failure was defined as any one of: participant does not achieve a 1 log10 copies (cop)/mL decrease in plasma HIV-1 RNA by Week (Wk) 4, or has two consecutive plasma HIV-1 RNA measures >=400 cop/mL separated by at least 2-4 wk after being previously <=400 cop/mL on/after Wk 4, or has two consecutive plasma HIV-1 RNA measures >400 cop/mL separated by at least 2-4 wk on/after Wk 24.

    Measured: Week 96

  49. Number of Participants Who Indicated "Yes" or "No" to the Question of Whether Unplanned Healthcare Resources Were Utilized

    Participants were asked at each visit whether or not they utilized unplanned healthcare resources.

    Measured: Baseline to Week 96

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Oct 2007 (estimated)
  2. Study startJun 2007
  3. Primary completionDec 2009
  4. Study completionDec 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
392 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00549198
Sponsor's protocol ID
CNA109586
Acronym
ASSERT
Status last verified
Apr 2011
First submitted
24 Oct 2007
Last updated
12 Apr 2011

Publications

  • Post FA, Moyle GJ, Stellbrink HJ, Domingo P, Podzamczer D, Fisher M, Norden AG, Cavassini M, Rieger A, Khuong-Josses MA, Branco T, Pearce HC, Givens N, Vavro C, Lim ML. Randomized comparison of renal effects, efficacy, and safety with once-daily abacavir/lamivudine versus tenofovir/emtricitabine, administered with efavirenz, in antiretroviral-naive, HIV-1-infected adults: 48-week results from the ASSERT study. J Acquir Immune Defic Syndr. 2010 Sep;55(1):49-57. doi: 10.1097/QAI.0b013e3181dd911e.

    PubMed 20431394

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Abacavir/lamivudine and efavirenz and Tenofovir/Emtricitabine and efavirenz in people with Infection, Human Immunodeficiency Virus I and HIV Infection, run by GlaxoSmithKline at 68 sites in 13 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 68 sites in United Kingdom, Germany, Italy, Switzerland, Belgium and 8 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 15 Oct 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Change From Baseline in Estimated Glomerular Filtration Rate (GFR), Calculated by Modification of Diet in Renal Disease (MDRD) Equation, at Week 48 (time frame: Baseline, Week 48). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00549198, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Apr 2011.

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