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Atazanavir+ Ritonavir+ Combivir

Phase 3

HIV Infection | Small molecule | Infectious Disease |Bristol-Myers Squibb Company|Last Updated: Aug 2, 2012

Success Probability

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment119

FDA Designations

No designations recorded

Clinical trial landscape

Atazanavir+ Ritonavir+ Combivir · 2 trials · 2 indications

Phase 3 1Phase 1 1
NCT00225017Switch to Atazanavir and Brachial Artery Reactivity (SABAR) StudyHIV Infection
COMPLETED50 Analytics
PHASE3COMPLETED
Switch to Atazanavir and Brachial Artery Reactivity (SABAR) Study
HIV InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage Change in Brachial Artery Flow Mediated (FMD) Vasodilation Between Arms From Baseline to Week 24
Baseline to week 24

Brachial artery reactivity assessed by noninvasively measuring brachial artery diameter and flow velocities in response to overinflated blood pressure cuff (Flow mediated dilation (FMD))in subjects switching to atazanavir and in subjects continuing on a stable antiretroviral regimen

Infant Gestational Age at Delivery
At the time of delivery
Infant Gender
At the time of delivery
Infant Race
At the time of delivery
Mean ATV Maximum Plasma Concentration (Cmax) in One Dosing Interval
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

Cmax = maximum observed plasma concentration of atazanavir at specified time points.

Mean RTV Maximum Plasma Concentration (Cmax) in One Dosing Interval
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

Cmax = maximum observed plasma concentration of ritonavir at specified time points.

Mean ATV Area Under the Concentration Curve (AUC TAU)
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

AUC = area under the concentration curve (AUC \[TAU\]) of atazanavir in one dosing interval from time zero to 24 hours.

Mean RTV Area Under the Concentration Curve (AUC TAU)
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

AUC = area under the concentration curve (AUC \[TAU\]) of ritonavir in one dosing interval.

Mean ATV Trough Plasma Concentration (Cmin) 24 Hours Following the Daily Dose
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum at 24 hours following the daily dose.

Cmin = plasma concentration 24 hours post dose of atazanavir at specified time points.

Mean RTV Trough Plasma Concentration (Cmin) 24 Hours Following the Daily Dose
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum at 24 hours following the daily dose.

Cmin = plasma concentration 24 hours post dose of ritonavir at specified time points.

Mean ATV Terminal Elimination Half Life (T 1/2)
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

T 1/2 = terminal elimination half life of atazanavir at specified time points.

Mean RTV Terminal Elimination Half Life (T 1/2)
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

T 1/2 = terminal elimination half life of ritonavir at specified time points.

Mean ATV Time of Maximum Observed Plasma Concentration (Tmax)
Pregnancy Weeks 12 to 28, 28 to 36, and 4-6 Weeks Postpartum

Tmax = time to reach maximum observed plasma concentration of atazanavir at specified time points.

Mean RTV Time of Maximum Observed Plasma Concentration (Tmax)
Pregnancy Weeks 12 to 28, Weeks 28 to 36, and 4-6 Weeks Postpartum

Tmax = time to reach the maximum observed plasma concentration of ritonavir at specified time points.

Secondary Endpoints

Change in Total Cholesterol Levels From Baseline to Week 24
Baseline to 24 weeks
Changes in LDL Particle Number From Baseline to Week 24
Baseline to 24 weeks
Maternal HIV Ribonucleic Acid (RNA) Level on Day of Delivery
Day of Delivery ± 2 Days
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AEXPERIMENTALARM A: Switch current PI to atazanavir 400 mg once daily plus current \> 2 nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs) for 24 weeks. Subjects currently on ritonavir (RTV) (400 mg BID or greater) or RTV-boosted PI (\<400 mg/day) , or tenofovir (TDF) as backbone NRTI therapy, will switch to ATV 300 mg boosted with RTV 100mg once daily.
BACTIVE_COMPARATORARM B: Continue current antiretroviral regimen (single or RTV-boosted PI plus \> 2 NRTIs) for 24 weeks
TreatmentEXPERIMENTAL -

Interventions

NameTypeDescription
AtazanavirDRUGatazanavir 400 mg once daily
current antiretroviral regimenDRUGContinue current antiretroviral regimen for 24 weeks, single or RTV-boosted PI plus \> 2 NRTIs
Atazanavir + Ritonavir + CombivirDRUGCapsules, tablets, Oral, initially ATV 300 mg + RTV 100 mg + ZDV/3TC 300/150 mg, dose escalated to ATV 400 mg + RTV 100 mg + ZDV/3TC 300/150 mg, ATV and RTV once daily, lamivudine (ZDV) / zidovudine (3TC) twice daily (BID), up to 36 weeks
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: * HIV infection * HIV-1 RNA \< 500 copies/ml * Fasting LDL cholesterol \>130 mg/dl OR fasting triglycerides \>200 mg/dl * CD4 count \>100 cells/mm * Stable antiretroviral regimen for at least 12 weeks prior to study entry that includes a protease inhibitor (PI) with or without r...

Countries:United StatesArgentinaItalyPuerto RicoSouth Africa
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Frequently asked questions about Atazanavir+ Ritonavir+ Combivir

What is Atazanavir used for?

Atazanavir is used for the treatment of HIV infections, including HIV in adults and Human Immunodeficiency Virus Type 1 (HIV-1) infection. It is a small molecule developed by Bristol-Myers Squibb Company for the infectious disease therapeutic area.

What does Atazanavir target?

Atazanavir is a protease inhibitor used against HIV. It works by inhibiting the HIV protease enzyme, which is essential for the virus to mature and become infectious. This mechanism helps reduce viral replication in people with HIV infections.

Who makes Atazanavir?

Atazanavir is developed by Bristol-Myers Squibb Company, which trades under the ticker BMY. The company is conducting clinical research on this small molecule for the treatment of HIV infections.

What phase is Atazanavir in?

Atazanavir is in Phase 3 clinical development. It is an investigational drug for HIV infections and is not yet approved by regulatory authorities. The development program includes completed trials across multiple phases.

What clinical trials is Atazanavir in?

Atazanavir has been studied in clinical trials including NCT00135434, NCT00357240, NCT00365339, and NCT00393328. These trials investigated its effects on glucose and insulin metabolism, drug interactions with proton pump inhibitors and famotidine, and bioequivalence of its 300 mg capsule formulation.

Is Atazanavir the same as Reyataz?

Atazanavir is the generic name for the drug also known as Reyataz. It is an HIV protease inhibitor developed by Bristol-Myers Squibb Company for the treatment of HIV infections in adults.