NCT00272779

Brief Summary

The purpose of this study is to evaluate the safety, tolerability and antiviral effects of atazanavir (ATV) plus ritonavir (RTV) versus a combination drug of lopinavir (LPV) plus RTV. A combination drug containing tenofovir (TDF) and emtricitabine (FTC) will also be taken by participants in both arms.

Trial Health

98
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,057

participants targeted

Target at P75+ for phase_3 hiv-infections

Timeline
Completed

Started Nov 2005

Geographic Reach
27 countries

75 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2005

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 5, 2006

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 9, 2006

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2007

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2008

Completed
2.6 years until next milestone

Results Posted

Study results publicly available

May 9, 2011

Completed
Last Updated

May 9, 2011

Status Verified

April 1, 2011

Enrollment Period

1.6 years

First QC Date

January 5, 2006

Results QC Date

December 3, 2010

Last Update Submit

April 7, 2011

Conditions

Keywords

HIVTreatment Naive

Outcome Measures

Primary Outcomes (29)

  • Number of Participants With Human-immunodeficiency Virus- Ribonucleic Acid (HIV-RNA) < 50 Copies (c)/mL at Week 48

    HIV RNA \< 50 c/mL is the most stringent measure of viral suppression (lowest threshold of assay) and indicates that a participant responded to treatment.

    Baseline (Day 1) and Week 48

  • Maximum Plasma Concentration (Cmax) of ATV/RTV and LPV/RTV in the Presence of an Antiretroviral (ARV) Regimen Including TDF at Week 4

    Cmax was derived from plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given every day (QD) and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given twice daily (BID) and TDF given QD.

  • Area Under the Concentration-time Curve, in One Dosing Interval [AUC(TAU)] of ATV/RTV and LPV/RTV in the Presence of an ARV Regimen Including TDF at Week 4

    AUC(TAU) was derived from the plasma concentration versus time data. It was calculated from time 0 to 12 hours for LPV and RTV in the LPV/RTV regimen, 0-24 hours for ATV and RTV in the ATV/RTV regimen, and 0-24 hours for tenofovir in both regimens at Week 4.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Minimum Plasma Concentration (Cmin) of ATV/RTV and LPV/RTV in the Presence of an ARV Regimen Including TDF at Week 4

    Cmin was derived from the plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Time to Reach Maximum Observed Plasma Concentration (Tmax) of ATV/RTV and LPV/RTV in the Presence of an ARV Regimen Including TDF at Week 4

    Tmax was derived from the plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Terminal Elimination Half-life (T-half) of ATV/RTV and LPV/RTV in the Presence of an ARV Regimen Including TDF at Week 4

    T-half was derived from the plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Protein Binding Adjusted Effective Concentration (EC-90) of ATV and LPV When Dosed With RTV at Week 4

    EC90/50=concentration of drug inducing 90%/50% of its maximal response. Protein binding adjusted EC90 for ATV and LPV were derived from phenotypically measured individual EC50 values at baseline using the following formula: Protein binding adjusted EC90 (ng/mL) = scale factor × molecular weight of the free base × EC50 micrometer(μM)/ unbound fraction (fu). Scale factor relates EC50 to EC90 (value of 3 and 2 for ATV and LPV, respectively); fu: estimated unbound fraction of ATV and LPV in vivo (0.14 and 0.02 for ATV and LPV respectively).

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Inhibitory Quotient (IQ) of ATV and LPV When Dosed With RTV at Week 4

    IQ defined as Cmin at week 4 divided by protein binding adjusted EC90 values for the respective protease inhibitor (ATV or LPV) derived from individual participant clinical isolates.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Cmax of RTV at Week 4

    Cmax was derived from plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • AUC (0-24) of RTV at Week 4

    AUC (0-24) was derived from plasma concentration versus time data. It was estimated as 2 times the AUC(TAU) based on 12-hour PK.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Cmin of RTV at Week 4

    Cmin was derived from plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Cmax of Tenofovir at Week 4

    Cmax was derived from plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Cmin of Tenofovir at Week 4

    Cmin was derived from plasma concentration versus time data.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • AUC (TAU) of Tenofovir at Week 4

    AUC (TAU) was derived from plasma concentration versus time data.It was calculated from time 0-24 hours for tenofovir in LPV/RPV and ATV/RTV regimen at Week 4.

    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24 Hrs post dosing with ATV/RTV and TDF all given QD and at predose, 1, 2, 3, 4, 6, 8, 12 Hrs post dosing with LPV/RTV given BID and TDF given QD.

  • Mean Change From Baseline in Trunk-to-Limb Fat Ratio as Measured by Dual Energy X-ray Absorptiometry (DEXA) at Week 96

    Mean changes from baseline in trunk-to-limb fat ratio as measured by DEXA, an x-ray scan used to measure bone mineral density. Clinical improvement is associated with a decrease in values.

    Baseline (Day 1) and Week 96.

  • Number of Participants With Single Nucleotide Polymorphisms (SNPs) Included in Genotype-Phenotype Analysis

    19 genes of interest were selected from previous results or literature, and 34 SNPs were genotyped. Phenotype-Genotype analysis was performed using 31 of the SNPs. The genotypes of each SNP were further classified as either a minor allele carrier (MAC) group composed of heterozygous and rare homozygous genotypes, or wild type \[WT, common homozygous\].

    Baseline visit

  • Mean Change From Baseline in Fasting Non-High Density Lipoprotein (HDL) Cholesterol Associated With RETN_097

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted (adj) p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Triglycerides Associated With RETN_097

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Triglycerides Associated With RETN_2265

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Triglycerides Associated With RETN_598

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Triglycerides Associated With APOE_C130R

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Triglycerides Associated With RETN_734

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Plasminogen Activator Inhibitor (PAI)-1 Associated With APOE_R176C

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Tumor Necrosis Factor (TNF)-Alpha Associated With IL6_5309

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Fasting Tumor Necrosis Factor (TNF)-Alpha Asssociated With RS11030679

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair.

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Subcutaneous Adipose Tissue (SAT)-To-Trunk Adipose Tissue (TAT) Ratio Associated With CCDC122_5980

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair. SAT and TAT were measured by computed tomography (CT).

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in Visceral Adipose Tissue (VAT) Associated With BRUNOL_1842

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair. VAT was measured by computed tomography (CT).

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in VAT Associated With RETN_730

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair. VAT was measured by computed tomography (CT).

    Baseline (Day 1), Week 48, and Week 96.

  • Mean Change From Baseline in VAT-to-TAT Ratio Associated With CCDA122_5980

    The change-from-baseline was defined as the difference between the averages of post-treatment time points (Weeks 48 and 96) and baseline. Association analysis for each SNP was performed using a minor allele carrier (MAC) composed of heterozygous and rare homozygous genotypes, and wild type (WT, common homozygous). False discovery rate (FDR)-adjusted p-values were calculated for each phenotype-genotype pair. VAT and TAT were measured by computed tomography (CT).

    Baseline (Day 1), Week 48, and Week 96.

Secondary Outcomes (59)

  • Number of Participants With HIV RNA < 400 c/mL at Week 48

    Baseline (Day 1) and Week 48

  • Number of Participants With Confirmed Plasma HIV RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time to Loss of Virologic Response [TLOVR] Algorithm)

    Baseline (Day 1) and Week 48

  • Reduction of log10 HIV RNA Levels From Baseline to Week 48

    Baseline (Day 1) and Week 48

  • Mean Change From Baseline in Cluster of Differentiation 4 (CD4) Cell Count at Week 48

    Baseline (Day 1) and Week 48.

  • Treatment Emergent Resistance in Isolates From Participants With Virologic Failure at Week 48

    Baseline (Day 1) and Week 48

  • +54 more secondary outcomes

Study Arms (2)

Atazanavir (ATV) + Ritonovir (RTV)

ACTIVE COMPARATOR

Participants were administered an oral dose of ATV 300 mg and RTV 100 mg once daily along with food on a background of fixed dose combination TDF 300 mg plus FTC 200 mg (TDF/FTC) once daily. Doses of ATV and RTV were taken 24 hours apart at the same time as the background TDF/FTC, up to 96 Weeks.

Drug: ATVDrug: RTVDrug: Tenofovi-Emtricitabine (TDF/FTC) tablet

Lopinavir (LPV) + RTV

ACTIVE COMPARATOR

Participants were administered an oral dose of LPV 400 mg and RTV 100 mg once daily along with food on a background of fixed dose combination TDF 300 mg plus FTC 200 mg (TDF/FTC) once daily. Doses of LPV and RTV were taken 24 hours apart at the same time as the background TDF/FTC, up to 96 Weeks.

Drug: RTVDrug: Tenofovi-Emtricitabine (TDF/FTC) tabletDrug: LPV

Interventions

ATVDRUG

300mg Oral capsules for 96 weeks

Also known as: Atazanavir, Reyataz, BMS-232632
Atazanavir (ATV) + Ritonovir (RTV)
RTVDRUG

100mg Oral Capsules for 96 weeks

Atazanavir (ATV) + Ritonovir (RTV)Lopinavir (LPV) + RTV

One tablet with 300 mg - 200 mg once a day for 96 weeks.

Atazanavir (ATV) + Ritonovir (RTV)Lopinavir (LPV) + RTV
LPVDRUG

400 mg (3 133mg capsules) BID for 96 weeks

Lopinavir (LPV) + RTV

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • HIV RNA ≥5000 c/ml

You may not qualify if:

  • Any antiretroviral therapy within 30 days prior to screening;
  • Women of Childbearing potential (WOCBP) unwilling or unable to use an acceptable method to avoid pregnancy for the entire study and for up to 8 weeks after the study;
  • WOCBP using a prohibited contraceptive method
  • WOCBP who are pregnant or breastfeeding;
  • Women with a positive pregnancy test on enrollment or prior to study drug administration;
  • Presence of a newly diagnosed HIV-Related opportunistic infection or any medical condition requiring acute therapy at the time of enrollment;
  • Suspected primary (acute) HIV infection;
  • Prior antiviral therapy (\>30 days of NRTI and/or \>7 days of non-nucleoside reverse transcriptase inhibitor (NNRTI) or PI therapies) or any antiretroviral therapy within 30 days prior to screening; some exceptions are allowed for ARV therapy in use for Mother-to-child transmission;
  • Participants with Cushing's syndrome;
  • Untreated hypothyroidism or hyperthyroidism. A participant who is euthyroid on a stable replacement dose of thyroid hormone is acceptable provided the thyroid stimulating hormone (TSH) performed within 30 days of screening is within normal drug range;
  • Recent therapy with agents with significant systemic myelosuppressive, neurotoxic, pancreatotoxic, hepatotoxic or cytotoxic potential within 3 months of study start or expected need for such therapy at the time of enrollment; or therapy with methadone or ribavirin/interferons or treatment with neurotoxic drugs or drugs that affect CYP3A4;
  • Participants with obstructive liver disease;
  • Active alcohol or substance use sufficient, in the Investigator's opinion, to prevent adequate compliance with study therapy or to increase the risk of developing pancreatitis or chemical hepatitis;
  • Proven or suspected acute hepatitis in the 30 days prior to study entry;
  • Intractable diarrhea (≥6 loose stools/day for at least 7 consecutive days) within 30 days prior to study entry;
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (79)

Local Institution

Phoenix, Arizona, United States

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Laguna Beach, California, United States

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Washington D.C., District of Columbia, United States

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Fort Lauderdale, Florida, United States

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Orlando, Florida, United States

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Huntersville, North Carolina, United States

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Dallas, Texas, United States

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Fort Worth, Texas, United States

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Capital Federal, Buenos Aires, Argentina

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Mar del Plata, Buenos Aires, Argentina

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Rosario, Santa Fe Province, Argentina

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Buenos Aires, Argentina

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Córdoba, Argentina

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Darlinghurst, New South Wales, Australia

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Carlton, Victoria, Australia

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South Yarra, Victoria, Australia

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Vienna, Austria

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Bruges, Belgium

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Ghent, Belgium

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Curitiba, Paraná, Brazil

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Recife, Pernambuco, Brazil

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Campinas, São Paulo, Brazil

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Rio de Janeiro, Brazil

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São Paulo, Brazil

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Toronto, Ontario, Canada

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Montreal, Quebec, Canada

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Viña del Mar, Región de Valparaíso, Chile

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Santiago, Santiago Metropolitan, Chile

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Bogotá, Colombia

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San José, Costa Rica

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Santo Domingo, Dominican Republic

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Nice, France

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Paris, France

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Villejuif, France

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Berlin, Germany

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Bonn, Germany

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Cologne, Germany

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Hamburg, Germany

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Guatemala City, Guatemala

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Kowloon, Hong Kong

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Jakarta, Indonesia

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Genova, Italy

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Milan, Italy

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Roma, Italy

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Torino, Italy

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Guadalajara, Jalisco, Mexico

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Zapopal, Jalisco, Mexico

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Zapopan, Jalisco, Mexico

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Mexico City, Mexico City, Mexico

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Chihuaha, Mexico

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Durango, Mexico

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San Luis Potisi, Mexico

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Maastricht, Netherlands

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Utrecht, Netherlands

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Panama City, Panama

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Lima, Peru

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Lisbon, Portugal

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Ponce, Puerto Rico

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San Juan, Puerto Rico

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Singapore, Singapore

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Port Elizabeth, Eastern Cape, South Africa

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Bloemfontein, Free State, South Africa

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Johannesburg, Gauteng, South Africa

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Meadowdale, Gauteng, South Africa

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Westdene, Gauteng, South Africa

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Durban, KwaZulu-Natal, South Africa

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Mowbray, Western Cape, South Africa

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Parow, Western Cape, South Africa

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Rugby, Western Cape, South Africa

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Barcelona, Spain

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Córdoba, Spain

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Madrid, Spain

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Málaga, Spain

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Kaohsiung City, Taiwan

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Taipei, Taiwan

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Chiang Mai, Thailand

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Khonkaen, Thailand

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London, Greater London, United Kingdom

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Manchester, Greater Manchester, United Kingdom

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Related Publications (5)

  • Molina JM, Andrade-Villanueva J, Echevarria J, Chetchotisakd P, Corral J, David N, Moyle G, Mancini M, Percival L, Yang R, Wirtz V, Lataillade M, Absalon J, McGrath D; CASTLE Study Team. Once-daily atazanavir/ritonavir compared with twice-daily lopinavir/ritonavir, each in combination with tenofovir and emtricitabine, for management of antiretroviral-naive HIV-1-infected patients: 96-week efficacy and safety results of the CASTLE study. J Acquir Immune Defic Syndr. 2010 Mar;53(3):323-32. doi: 10.1097/QAI.0b013e3181c990bf.

    PMID: 20032785BACKGROUND
  • Molina JM, Andrade-Villanueva J, Echevarria J, Chetchotisakd P, Corral J, David N, Moyle G, Mancini M, Percival L, Yang R, Thiry A, McGrath D; CASTLE Study Team. Once-daily atazanavir/ritonavir versus twice-daily lopinavir/ritonavir, each in combination with tenofovir and emtricitabine, for management of antiretroviral-naive HIV-1-infected patients: 48 week efficacy and safety results of the CASTLE study. Lancet. 2008 Aug 23;372(9639):646-55. doi: 10.1016/S0140-6736(08)61081-8.

    PMID: 18722869BACKGROUND
  • Zhu L, Liao S, Child M, Zhang J, Persson A, Sevinsky H, Eley T, Xu X, Krystal M, Farajallah A, McGrath D, Molina JM, Bertz R. Pharmacokinetics and inhibitory quotient of atazanavir/ritonavir versus lopinavir/ritonavir in HIV-infected, treatment-naive patients who participated in the CASTLE Study. J Antimicrob Chemother. 2012 Feb;67(2):465-8. doi: 10.1093/jac/dkr490. Epub 2011 Nov 25.

  • Uy J, Yang R, Wirtz V, Sheppard L, Farajallah A, McGrath D. Treatment of advanced HIV disease in antiretroviral-naive HIV-1-infected patients receiving once-daily atazanavir/ritonavir or twice-daily lopinavir/ritonavir, each in combination with tenofovir disoproxil fumarate and emtricitabine. AIDS Care. 2011 Nov;23(11):1500-4. doi: 10.1080/09540121.2011.565033. Epub 2011 Jul 7.

  • Squires KE, Johnson M, Yang R, Uy J, Sheppard L, Absalon J, McGrath D. Comparative gender analysis of the efficacy and safety of atazanavir/ritonavir and lopinavir/ritonavir at 96 weeks in the CASTLE study. J Antimicrob Chemother. 2011 Feb;66(2):363-70. doi: 10.1093/jac/dkq457. Epub 2010 Dec 9.

MeSH Terms

Conditions

HIV Infections

Interventions

Atazanavir SulfateTablets

Condition Hierarchy (Ancestors)

Blood-Borne InfectionsCommunicable DiseasesInfectionsSexually Transmitted Diseases, ViralSexually Transmitted DiseasesLentivirus InfectionsRetroviridae InfectionsRNA Virus InfectionsVirus DiseasesGenital DiseasesUrogenital DiseasesImmunologic Deficiency SyndromesImmune System Diseases

Intervention Hierarchy (Ancestors)

PyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsOligopeptidesPeptidesAmino Acids, Peptides, and ProteinsDosage FormsPharmaceutical Preparations

Results Point of Contact

Title
BMS Study Director
Organization
Bristol-Myers Squibb

Study Officials

  • Bristol-Myers Squibb

    Bristol-Myers Squibb

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

January 5, 2006

First Posted

January 9, 2006

Study Start

November 1, 2005

Primary Completion

June 1, 2007

Study Completion

October 1, 2008

Last Updated

May 9, 2011

Results First Posted

May 9, 2011

Record last verified: 2011-04

Locations