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Atazanavir

Phase 4FDA approved 2003

HIV | Small molecule | Infectious Disease |Bristol-Myers Squibb Company|Trials Updated: Feb 13, 2024

Atazanavir development status

FDA approval Jun 20, 2003 as Reyataz
Approval holderBristol Myers Squibb
ApplicationNDA021567
Highest phase Phase 4 (NCT00312754)
Phase scored for BMYPhase 3
Registered trials 40 across 12 sponsors since Aug 2001

Label indication REYATAZ ® is indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection in adults and in pediatric patients 3 months and older weighing at least 5 kg. Limitations of Use: • REYATAZ is not recommended for use in pediatric patients below the age of 3 months due to the risk of kernicterus [see Use in Specific Populations (8.4) ] . FDA label

Atazanavir target and mechanism

ModalitySmall molecule

Also known as Atazanavir (current formulation), Atazanavir powder, Atazanavir (immediate switch), BMS-232632, Reyataz, ATV

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials24
Total Enrollment2,447

FDA Designations

No designations recorded

Atazanavir clinical trials

Atazanavir · 24 trials · 8 indications

Phase 3 10Phase 2 3Phase 1 11
NCT01099579PRINCE: Study of Atazanavir (ATV)/Ritonavir (RTV)HIV Infections
COMPLETED82 Analytics
NCT00337467Phase IIIb Study to Evaluate the Effectiveness and Safety of Atazanavir/Ritonavir as Single Enhanced Protease Inhibitor Therapy in Human Immunodeficiency Virus (HIV)-Infected Subjects Evidencing Virologic SuppressionHuman Immunodeficiency Virus (HIV) Infections
COMPLETED61 Analytics
NCT00225017Switch to Atazanavir and Brachial Artery Reactivity (SABAR) StudyHIV Infection
COMPLETED50 Analytics
NCT00135395A Phase IIIb Study Comparing Two Boosted Protease Inhibitor-based HAART Regimens in HIV-infected Patients Experiencing Their First Virologic Failure While Receiving an NNRTI-containing HAART RegimenHIV Infections
COMPLETED200 Analytics
NCT00120393Study of HIV Patients With Undetectable Viral Load and Abnormal Lipids Switching to Atazanavir/RitonavirHIV Infections
COMPLETED192 Analytics
NCT00067782A Phase IIIB Study Evaluating the Effect on Serum Lipids Following a Switch to Atazanavir in HIV Infected Subjects Evidencing Virologic Suppression on Their First PI-Based Antiretroviral TherapyHIV Infections
COMPLETED- Analytics
NCT01003990Roll-Over Protocol To Provide Atv And/Or Truvada For Extended AccessHIV
COMPLETED710 Analytics
NCT00035932Atazanavir (BMS-232632) in Combination With Ritonavir or Saquinavir, and Lopinavir/Ritonavir, Each With Tenofovir and a Nucleoside in Subjects With HIVHIV Infections
COMPLETED571 Analytics
NCT00028301Atazanavir Versus Lopinavir/Ritonavir (LPV/RTV) in Patients Who Have Not Had Success With Protease Inhibitor-Containing HAART Regimen(s)HIV Infections
COMPLETED- Analytics
NCT00013897A Comparison of BMS-232632 With Efavirenz, Each in Combination With Zidovudine-LamivudineHIV Infections
COMPLETED- Analytics
PHASE3COMPLETED
PRINCE: Study of Atazanavir (ATV)/Ritonavir (RTV)
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Phase IIIb Study to Evaluate the Effectiveness and Safety of Atazanavir/Ritonavir as Single Enhanced Protease Inhibitor Therapy in Human Immunodeficiency Virus (HIV)-Infected Subjects Evidencing Virologic Suppression
Human Immunodeficiency Virus (HIV) InfectionsUnlock trial analytics
PHASE3COMPLETED
Switch to Atazanavir and Brachial Artery Reactivity (SABAR) Study
HIV InfectionUnlock trial analytics
PHASE3COMPLETED
A Phase IIIb Study Comparing Two Boosted Protease Inhibitor-based HAART Regimens in HIV-infected Patients Experiencing Their First Virologic Failure While Receiving an NNRTI-containing HAART Regimen
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Study of HIV Patients With Undetectable Viral Load and Abnormal Lipids Switching to Atazanavir/Ritonavir
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
A Phase IIIB Study Evaluating the Effect on Serum Lipids Following a Switch to Atazanavir in HIV Infected Subjects Evidencing Virologic Suppression on Their First PI-Based Antiretroviral Therapy
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Roll-Over Protocol To Provide Atv And/Or Truvada For Extended Access
HIVUnlock trial analytics
PHASE3COMPLETED
Atazanavir (BMS-232632) in Combination With Ritonavir or Saquinavir, and Lopinavir/Ritonavir, Each With Tenofovir and a Nucleoside in Subjects With HIV
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Atazanavir Versus Lopinavir/Ritonavir (LPV/RTV) in Patients Who Have Not Had Success With Protease Inhibitor-Containing HAART Regimen(s)
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
A Comparison of BMS-232632 With Efavirenz, Each in Combination With Zidovudine-Lamivudine
HIV InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Death as Outcome, Serious Adverse Events (SAEs), Adverse Events (AEs) Leading to Discontinuation
From Day 1 to Week 48

AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization.

Number of Participants With Laboratory Test Results With Worst Toxicity of Grade 3-4
After Day 1 to Week 48

ALT=alanine aminotransferase; SGPT=serum glutamic-pyruvic transaminase; AST=aspartate aminotransferase; SGOT=serum glutamic-oxaloacetic transaminase; ULN=upper limit of normal. Grading by the National Institute of Health Division of AIDs and World Health Organization criteria. Hemoglobin (g/dL): Grade (Gr)1=9.5-11.0; Gr 2=8.0-9.4; Gr 3=6.5-7.9; Gr 4=\<6.5. Neutrophils, absolute (/mm\^3): Gr 1=\>=1000-\<1500; Gr 2= \>=750-\<1000; Gr 3=\>=500-\<750; Gr 4=\<500. ALT/SGPT (\*ULN): Gr 1=1.25-2.5; Gr 2=2.6-5; Gr 3=5.1-10; Gr 4=\>10. AST/SGOT (\*ULN): Gr 1=1.25-2.5; Gr 2=2.6-5; Gr 3=5.1-10; Gr 4=\>10. Alkaline phosphatase(\*ULN): Gr 1=1.25-2.5; Gr 2=2.6-5: Gr 3=5.1-10; Gr 4=\>10. Total bilirubin (\*ULN): Gr 1=1.1-1; Gr 2=1.6-2.5; Gr 3=2.6-5; Gr 4=\>5. Amylase (\*ULN): Gr 1=1.10-39; Gr 2=1.40-2; Gr 3=2.10-5.0; Gr 4=\>5.0. Lipase (\*ULN): Gr 1=1.10-1.39: Gr 2=1.40-2; Gr 3=2.10-5.0; Gr 4=\>5.0. Uric acid (mg/dL): Gr 1=7.5-10.0; Gr 2=10.1-12.0; Gr 3=12.1-15.0; Gr 4=\>15.

Electrocardiogram Changes From Baseline in PR Interval, QTC Bazett, and QTC Fridericia at Week 48
From Baseline to Week 48

Electrocardiogram parameters were measured at baseline for QTC Bazett, QTC Fridericia, and PR interval. The mean change from baseline at week 48 is reported by arm in milliseconds.

Number of Participants With Centers for Disease Control (CDC) Class C AIDS Events
From Day 1 to Week 48

CDC Class C events are AIDS-defining events that include recurrent bacterial pneumonia (\>=2 episodes in 12 months); candidiasis of the bronchi, trachea, lungs, or esophagus; invasive cervical carcinoma; disseminated or extrapulmonary coccidioidomycosis; extrapulmonary cryptococcosis; chronic intestinal cryptosporidiosis (\>1 month); cytomegalovirus disease; HIV-related encephalopathy; herpes simplex: chronic ulcers, or bronchitis, pneumonitis, or esophagitis; disseminated or extrapulmonary histoplasmosis; chronic intestinal isosporiasis; Kaposi sarcoma; immunoblastic or primary brain Burkitt lymphoma; mycobacterium avium complex, kansasii, or tuberculosis; mycobacterium, other species; Pneumocystis carinii pneumonia; progressive multifocal leukoencephalopathy; Salmonella septicemia; recurrent toxoplasmosis of brain; HIV wasting syndrome (involuntary weight loss \>10% of baseline body weight) with chronic diarrhea or chronic weakness and documented fever for ≥1 month.

Percentage of Participants With Treatment Failure Through Week 48
Week 48

Treatment Failure through Week 48 defined as virologic rebound (HIV RNA \>=400 c/mL) on or before Week 48 or study discontinuation before Week 48. Virological rebound is defined as confirmed on-treatment HIV ribonucleic acid (RNA) \>= 400 c/mL at 2 consecutive visits or last on-treatment HIV RNA \>=400 c/mL followed by discontinuation of study therapy.

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

Co-Primary Outcomes in this study 1)Viral load reduction from baseline through Week 24 2)Change in lipids from baseline at Week 12
To compare the Week 12 percent change from baseline in fasting non-HDL cholesterol between subjects who are switched to an ATV/RTV-containing regimen and those who continue on a LPV/RTV based regimen.
Time to virologic rebound for subjects with HIV RNA < 50 c/mL at baseline; Magnitude/ durability of increases from baseline in absolute CD4 (Time-Averaged Difference) through WK12; Mean % change from baseline in fasting LDL cholesterol at WK12.
Number of Participants With Serious Adverse Events (SAEs), Treatment Related SAEs, Treatment Related Adverse Events (AEs), AEs Leading to Discontinuation of Study Therapy, Grade 3 to Grade 4 AEs, Grade 3 to Grade 4 AEs, CDC Class C AIDS Events, or Death
Date of First Dose to 30 days post the last dose; approximately 405 weeks)

AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Treatment-related=having certain, probable, possible, or missing relationship to study drug. Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4= Potentially Life-threatening or disabling. AIDS Defining Diagnosis ( CDC Class C AIDS Events) are identified from HIV Related Diagnosis.

Mean Change From Baseline in HIV Ribonucleic Acid (RNA) at Week 24
Baseline, Week 24
Mean Change From Baseline in HIV RNA at Week 48
Baseline, Week 48
Mean Change From Baseline in HIV RNA at Week 96
Baseline, Week 96
Primary endpoint - The proportion of patients with undetectable HIV RNA viral load ( < 50 copies/ml) at week 24
24 weeks

The proportion of patients with undetectable HIV RNA viral load ( \< 50 copies/ml) at week 24.

Taste properties of ATV & COBI alone & in combination as well as oral test formulations containing both ATV & COBI Aromatic identity will be measured using the Flavor Profile of the Flavor Leadership Criteria
Every 6 weeks from the time of subject enrollment up to 2 years
Taste properties of ATV & COBI alone & in combination as well as oral test formulations containing both ATV & COBI amplitude will be measured using the Flavor Profile of the Flavor Leadership Criteria
Every 6 weeks from the time of subject enrollment up to 2 years
Taste properties of ATV & COBI alone & in combination as well as oral test formulations containing both ATV & COBI mouth-feel will be measured using the Flavor Profile of the Flavor Leadership Criteria
Every 6 weeks from the time of subject enrollment up to 2 years
Taste properties of ATV & COBI alone & in combination as well as oral test formulations containing both ATV & COBI off-notes will be measured using the Flavor Profile of the Flavor Leadership Criteria
Every 6 weeks from the time of subject enrollment up to 2 years
Taste properties of ATV & COBI alone & in combination as well as oral test formulations containing both ATV & COBI aftertaste will be measured using the Flavor Profile of the Flavor Leadership Criteria
Every 6 weeks from the time of subject enrollment up to 2 years
Maximum Observed Plasma Concentration (Cmax) of Atazanavir
Days 1, 8, 15, 22, and 29 (predose and at 1, 2, 2.5, 3, 4, 5, 6, 8, 12, and 16 hours postdose); Days 2, 9, 16, 23, and 30 (24, 30, and 36 hours postdose); Days 3, 10, 17, 24, and 31 (48 hours postdose)

Blood samples for plasma concentrations were obtained at predose and at specific timepoints up to 48 hours after dosing on Days 1, 8, 15, 22, and 29. Cmax was derived from plasma concentration versus time data.

Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Time of Last Quantifiable Concentration (AUC[0-T]) and From Time 0 to Infinity (AUC[INF]) for Atazanavir
Days 1, 8, 15, 22, and 29 (predose and at 1, 2, 2.5, 3, 4, 5, 6, 8, 12, and 16 hours postdose); Days 2, 9, 16, 23, and 30 (24, 30, and 36 hours postdose); Days 3, 10, 17, 24, and 31 (48 hours postdose)

Blood samples for plasma concentrations were obtained at predose and at specific timepoints up to 48 hours after dosing on Days 1, 8, 15, 22, and 29. AUC(0-T) and AUC(INF) were derived from plasma concentration versus time data.

Median Scores on a Subjective Sweet Intensity Scale for Current and New Powder for Oral Use (POU) Formulations of Atazanavir
Study Day 1

Tasting atazanavir (15 mg, administered as a 5 mL oral suspension) was defined as taking the sample into the mouth, swishing it across the tongue for approximately 30 seconds without swallowing, and then spitting it out. Immediately after tasting each treatment, participants scored the treatments for sweetness using a subjective sweet intensity scoring system: 0=not sweet, 1=mildly sweet, 2=moderately sweet, 3=very sweet. Participants were permitted to select a whole or half score number (for example, 1.5) between the minimum score of 0 and the maximum score of 3.0. The higher the score, the greater the sweetness.

Mean Scores on a Subjective Sweet Intensity Scale for Current and New Powder for Oral Use (POU) Formulations of Atazanavir
Study Day 1

Tasting atazanavir (15 mg, administered as a 5 mL oral suspension) was defined as taking the sample into the mouth, swishing it across the tongue for approximately 30 seconds without swallowing, and then spitting it out. Immediately after tasting each treatment, participants scored the treatments for sweetness using a subjective sweet intensity scoring system: 0=not sweet, 1=mildly sweet, 2=moderately sweet, 3=very sweet. Participants were permitted to select a whole or half score number (for example, 1.5) between the minimum score of 0 and the maximum score of 3.0. The higher the score, the greater the sweetness.

Maximum Observed Plasma Concentration (Cmax) and Minimum Observed Plasma Concentration (Cmin) of Atazanavir, Administered as Atazanavir/Ritonavir With and Without Voriconazole, in Participants Who Are Extensive Metabolizers (EM)
Predose and at 1, 2, 3, 4, 5, 7, 9,13, and 24 hours postdose on Days 20 and 30 of a 30-day cycle

EM participants are those with functional CYP2C19 alleles.

Time to Maximum Concentration (Tmax) of Atazanavir, Administered as Atazanavir/Ritonavir With and Without Voriconazole, in EM Participants
Predose and at 1, 2, 3, 4, 5, 7, 9,13, and 24 hours postdose on Days 20 and 30 of a 30-day cycle

EM=extensive metabolizers, or participants with functional CYP2C19 alleles.

Area Under the Plasma Concentration-time Curve in 1 Dosing Interval [AUC(TAU)] of Atazanavir Administered as Atazanavir/Ritonavir With and Without Voriconazole, in EM Participants
Predose and at 1, 2, 3, 4, 5, 7, 9,13, and 24 hours postdose on Days 20 and 30 of a 30-day cycle

EM=extensive metabolizers, or participants with functional CYP2C19 alleles.

Tmax of Voriconazole, Administered With and Without Atazanavir/Ritonavir, in EM Participants
Predose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours postdoseDays 3 and 30 of a 30-day cycle

Tmax=time to maximum concentration; EM=extensive metabolizers, or participants with functional CYP2C19 alleles.

Cmax and Cmin of Voriconazole, Administered With and Without Atazanavir/Ritonavir, in EM Participants
Predose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours postdoseDays 3 and 30 of a 30-day cycle

Cmax=maximum observed plasma concentration; Cmin=minimum observed plasma concentration; EM=extensive metabolizers, or participants with functional CYP2C19 alleles.

AUC(TAU)of Voriconazole, Administered With and Without Atazanavir/Ritonavir, in EM Participants
Predose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours postdoseDays 3 and 30 of a 30-day cycle

AUC(TAU)=area under the plasma concentration-time curve in 1 dosing interval; EM=extensive metabolizers, or participants with functional CYP2C19 alleles.

Safety Assessments
Screening, Days -1, 1, 5, 6, 8, 10, 12, 13, 15, 19, 22, 26, and Study Discharge
Pharmacokinetic Assessments
Days 5, 12, and 26
Blood atazanavir pharmacokinetic sampling to be collected on days 1, 2 and 3 of each of the 2 periods of the study
Effect of omeprazole 20 mg on PK of atazanavir (with ritonavir), coadministered or temporally separated, in healthy subjects.
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.

Assess PK of ATV, identifying dosing regimens of ATV/RTV/TDF when dosed with FAM that result in ATV exposures similar to ATV/RTV/TDF 300/100/300 mg with and without FAM.
Steady state pharmacokinetics of atazanavir/ritonavir 300/100mg & 400/100mg each co-administered w/ nevirapine 200mg twice-daily w/ 2 to 3 nucleoside reverse transcriptase inhibitors relative to that of a second cohort of subj.
Insulin sensitivity by euglycemic hyperinsulinemic clamp method

Secondary Endpoints

Percentage of Participants With HIV RNA Levels <50 c/mL and <400 c/mL at Week 48 by Treatment/Weight
At Week 48
Percentage of Participants With HIV RNA Levels <50 c/mL and <400 c/mL at Week 48 by Prior Antiretroviral (ARV) Treatment Status
From Day 1 to Week 48
Mean Change From Baseline in HIV RNA Levels at Week 48 by Treatment/Weight
From Baseline to Week 48
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Atazanavir powder, 150 mg/Ritonavir oral solution, 80 mgEXPERIMENTALPatients weighing 5 to \<10 kg received atazanavir (ATV), 150-mg powder dosed in 50-mg packets, and ritonavir (RTV) oral solution, 80 mg. Stage 1: Initial dose was determined by patient's weight on the day of first on-treatment study visit (Day 1). ATV dispersible powder was mixed with a small amount of food or beverage. All of the mixture must have been consumed to obtain the full dose. The RTV oral solution was taken immediately before or after the ATV powder preparation. Stage 2: Patients who reached the age of 6 years or a weight of ≥25kg transitioned from the powder to the capsule formulation of ATV. Patients who weighed 15 to \<20 kg received ATV, 150 mg with RTV, 100 mg; those who weighed 20 to \<40 kg received ATV, 200 mg, and RTV, 100 mg; and those who weighed at least 40 kg received ATV, 300 mg with RTV, 100 mg. RTV capsules or tablets were ingested with food immediately before or after ATV intake.
Atazanavir powder, 200 mg/Ritonavir oral solution, 80 mgEXPERIMENTALPatients weighing 10 to \<15 kg received ATV powder, 200 mg, dosed in 50-mg sachet packets and RTV oral solution, 80 mg. Stage 1: Initial dose was determined by the patient's weight on the day of the first on-treatment study visit (Day 1). ATV dispersible powder was mixed with a small amount of food or beverage (water, milk, chocolate milk, liquid infant formula, applesauce, or yogurt). All of the mixture must have been consumed to obtain the full dose. The RTV oral solution was taken immediately before or after the ATV powder preparation. Stage 2: Patients who reached the age of 6 years or a weight of ≥25kg transitioned from the powder to the capsule formulation of ATV. Patients who weighed 15 to \<20 kg received ATV, 150 mg with RTV, 100 mg; those who weighed 20 to \<40 kg received ATV, 200 mg, and RTV, 100 mg; and those who weighed at least 40 kg received ATV, 300 mg with RTV, 100 mg. RTV capsules or tablets were ingested with food immediately before or after ATV intake.
Atazanavir powder, 250 mg/Ritonavir oral solution, 80 mgEXPERIMENTALPatients weighing 15 to \<25 kg received 250 mg of ATV powder dosed in 50-mg sachet packets, with 80 mg of RTV solution. Stage 1: Initial dose was determined by the patient's weight on the day of the first on-treatment study visit (Day 1). ATV dispersible powder was mixed with a small amount of food or beverage (water, milk, chocolate milk, liquid infant formula, applesauce, or yogurt). All of the mixture must have been consumed to obtain the full dose. The RTV oral solution was taken immediately before or after the ATV powder preparation. Stage 2: Patients who reached the age of 6 years or a weight of ≥25kg transitioned from powder to the capsule formulation of ATV. Patients who weighed 15 to \<20 kg received ATV, 150 mg with RTV, 100 mg; those who weighed 20 to \<40 kg received ATV, 200 mg, and RTV, 100 mg; and those who weighed at least 40 kg received ATV, 300 mg with RTV, 100 mg. RTV capsules or tablets were ingested with food immediately before or after ATV intake.
A1EXPERIMENTAL -
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
G1ACTIVE_COMPARATOR -
G2ACTIVE_COMPARATOR -
1ACTIVE_COMPARATOR -
2ACTIVE_COMPARATOR -
AtazanavirEXPERIMENTAL -
Atazanavir/RitonavirEXPERIMENTAL -
Lopinavir/RitonavirACTIVE_COMPARATORRitonavir-boosted Lopinavir (LPV/RTV 400/100 mg) administered twice a day (BID) with Tenofovir/ Emtricitabine (TDF/FTC).
IACTIVE_COMPARATORATV 300 mg + RTV 100 mg + TDF 300 mg + nucleoside of choice ATV , RTV, and TDF once daily, nucleoside per label 48 Weeks and then for as long as subject is in need of therapy through study
IIACTIVE_COMPARATORATV 400 mg + SQV 1200 mg + TDF 300 mg + nucleoside of choice ATV, SQV, and TDF once daily, nucleoside per label 48 Weeks and then for as long as subject is in need of therapy through study
IIIACTIVE_COMPARATORLPV/RTV 400/100 mg + TDF 300 mg + nucleoside of choice LPV/RTV twice daily, TDF once daily, nucleoside per label 48 Weeks and then for as long as subject is in need of therapy through study
Open label single armEXPERIMENTALIntroduction of treatment regimen with atazanavir 300mg qd + ritonavir 100mg qd + dolutegravir 50mg qd
Atazanavir and CobicistatOTHERStage 1:Taste evaluation using Active Pharmaceutical Ingredient (API) Stage 2:Taste Optimization using API (flavours and sweeteners) Stage 3:Prototypes of the API - containing clinical trial materials
Treatment A: Atazanavir + Cobicistat coadministeredEXPERIMENTALParticipants received a single dose of atazanavir, 300 mg as capsule, coadministered with cobicistat,150 mg as tablet, following a light meal on Day 1 or 8
Treatment B: Atazanavir/Cobicistat FDCEXPERIMENTALParticipants received a single fixed-dose combination (FDC) of atazanavir, 300 mg/cobicistat, 150 mg, following a light meal on Day 1 or 8
Treatment C: Atazanavir + Cobicistat coadministeredEXPERIMENTALParticipants received a single dose of atazanavir, 300 mg as capsule, coadministered with cobicistat,150 mg as tablet, in the fasted state on Day 15 or 22
Treatment D: Atazanavir/Cobicistat FDCEXPERIMENTALParticipants received a single FDC dose of atazanavir, 300 mg/cobicistat, 150 mg, in the fasted state on Day 15 or 22
Treatment E: Atazanavir/Cobicistat FDCEXPERIMENTALParticipants received a single FDC dose of atazanavir, 300 mg/cobicistat, 150 mg, following a high-fat meal on Day 29
Atazanavir + 10% aspartameACTIVE_COMPARATOR -
Atazanavir + 4.2% aspartameACTIVE_COMPARATOR -
Atazanavir + 4.2% aspartame and sucraloseACTIVE_COMPARATOR -
Voriconazole, 200 mg BID (EM)ACTIVE_COMPARATOR -
Atazanavir/Ritonavir, 300/100 QD (EM & PM)ACTIVE_COMPARATOR -
Atazanavir/Ritonavir, 300/100mgQD + Voriconazole, 200mgBID(EM)ACTIVE_COMPARATOR -
Voriconazole, 50 mg BID (PM)ACTIVE_COMPARATOR -
Atazanavir/ritonavir, 300/100mgQD+voriconazole, 50mgBID (PM)ACTIVE_COMPARATOR -
3ACTIVE_COMPARATOR -
A2ACTIVE_COMPARATOR -
A3 IEXPERIMENTAL -
A3 IIEXPERIMENTAL -
B1ACTIVE_COMPARATOR -
B2ACTIVE_COMPARATOR -
B3 IEXPERIMENTAL -
B3 IIEXPERIMENTAL -
TreatmentEXPERIMENTAL -
CEXPERIMENTAL -
DEXPERIMENTAL -
EEXPERIMENTAL -
A3EXPERIMENTAL -

Interventions

NameTypeDescription
Atazanavir powderDRUGPowder, oral, dosed by weight. Participants who weighed 5 to \<10 kg received atazanavir (ATV), 150 mg, and ritonavir (RTV), 80 mg; those who weighed 10 to \<15 kg received ATV, 200 mg, and RTV, 80 mg; and those who weighed 15 to \<25 kg received ATV, 250 mg, and RTV, 80 mg, once per day for 48 weeks or until pediatric indication is locally approved and participant meets requirements to receive appropriate formulation.
Ritonavir oral solutionDRUGOral solution, 80 mg/mL, once per day for 48 weeks or until pediatric indication is locally approved and participant meets requirements to receive appropriate formulation.
Atazanavir capsulesDRUGCapsules, oral, dosed by weight in Stage 2. Patients who reached the age of 6 years or a weight of ≥25 kg transitioned from the powder to the capsule formulation of atazanavir (ATV). Patients who weighed 15 to \<20 kg received ATV, 150 mg with RTV, 100 mg; those who weighed 20 to \<40 kg received ATV, 200 mg, and RTV, 100 mg; and those who weighed at least 40 kg received ATV, 300 mg with RTV, 100 mg. RTV capsules or tablets were ingested with food immediately before or after ATV intake.
Ritonavir capsulesDRUGOral, capsules, 100 mg, administered in Stage 2 with atazanavir capsules, dosed by weight.
Atazanavir + RitonavirDRUGCapsules, Oral, ATV 300mg + RTV 100mg, once daily, 96 weeks
AtazanavirDRUGatazanavir 400 mg once daily
current antiretroviral regimenDRUGContinue current antiretroviral regimen for 24 weeks, single or RTV-boosted PI plus \> 2 NRTIs
Atazanavir+ritonavirDRUGCapsules, Oral, 300mg/100mg, once daily, 24 weeks.
Lopinavir+ritonavirDRUGCapsules, Oral, 800mg/200mg, twice daily, 24 weeks.
atazanavir/ritonavir +2 NRTIs (immediate Switch Group)DRUGCapsules, Oral, ATV 300mg/RTV 100mg + 2 NRTIs, QD, 48 weeks.
LPV/r +2 NRTIs (Delayed/optional Switch Group)DRUGCapsules, Oral, LPV 400mg/RTV 100mg +2 NRTIs, BID, 24 weeks then option to switch to ATV arm or stay until 48 weeks.
Atazanavir (immediate switch)DRUGCapsules, Oral, 400mg, Once daily, 48 weeks.
Atazanavir (Week 24 switch)DRUGCapsules, Oral, 400mg, Once daily, 48 weeks.
Atazanavir/RitonavirDRUGTablets, Oral, 300/100 mg, once daily, indefinitely
Tenofovir/EmtricitabineDRUGTablets, Oral, 300/200 mg, once daily, indefinitely
Lopinavir/ritonavirDRUGTablets, Oral, 400/100 mg, twice daily, indefinitely
Atazanavir + ritonavir + tenofovir + nucleosideDRUGActive Comparator, Capsules, tablets, Oral
Atazanavir + saquinavir + tenofovir + nucleosideDRUGActive Comparator, Capsules, tablets, Oral
Lopinavir/ritonavir + tenofovir + nucleosideDRUGActive Comparator, Capsules, tablets, Oral
Lamivudine/ZidovudineDRUG -
EfavirenzDRUG -
atazanavir 300 mg + ritonavir 100 mg + dolutegravir 50 mgDRUGSwitch to single arm treatment atazanavir-ritonavir 300-100 mg + dolutegravir 50 mg therapy for 24 weeks
RitonavirDRUG -
SaquinavirDRUG -
Nelfinavir mesylateDRUG -
StavudineDRUG -
DidanosineDRUG -
CobicistatDRUG -
Active Pharmaceutical IngredientDRUG -
Atazanavir/Cobicistat FDCDRUGAtazanavir 300-mg/cobicistat 150-mg FDC tablet
Atazanavir (current formulation)DRUGSolution, oral, atazanavir 15 mg/5 mL with 10% aspartame, single dose
Atazanavir, powder for oral use 1 (POU1)DRUGSolution, oral, atazanavir 15 mg/5 mL with 4.2% aspartame, single dose
Atazanavir (POU2)DRUGSolution, oral, atazanavir 15 mg/5 mL with 4.2% aspartame and sucralose, single dose
VoriconazoleDRUGTreatment A: Participants with functional CYP2C19 alleles (EM) received oral tablets of voriconazole, 400 mg, twice daily (BID), on Day 1, then 200 mg BID on Days 2 and 3. Voriconazole dose was given at least 1 hour after a light meal. Treatment C: EM participants received atazanavir/ritonavir, 300/100 mg once daily (QD), plus voriconazole, 400 mg BID on Day 21 then 200 mg BID on Days 22-30. Atazanavir/ritonavir dose was administered in the morning within 5 minutes of completing a light meal, and 1 hour before voriconazole morning dose. Treatment E: PM participants received atazanavir/ritonavir, 300/100 mg QD plus voriconazole, 100 mg BID, on Day 21, then 50 mg BID on Days 22-30.
RaltegravirDRUGTablet, Oral, 400 mg, twice daily for 5 Days
Atazanavir + RaltegravirDRUGCapsule/Tablet, Oral, 300/400, twice daily for 14 Days
Atazanavir/Ritonavir+OmeprazoleDRUGCapsules/capsules + Capsules, Oral, 300/100 mg + 20 mg, once daily in PM + once daily in AM, 7 days.
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
Atazanavir+Ritonavir+TenofovirDRUGCap/Cap/Tablet, Oral, 300/100/300 mg, QAM/QAM/QAM, 10 days.
Atazanavir+Ritonavir+Tenofovir+FamotidineDRUGCap/Cap/Tablet/Tablet, Oral, 300/100/300/20 mg, QAM/QAM/QAM/Q12 coadmin, 7 days.
NevirapineDRUGTablets, Oral, 200 mg, Twice daily, 3 days.
Nevirapine + Atazanavir/RitonavirDRUGTablets + Capsules/Capsules, Oral, 200 mg + 300/100 mg, twice daily + once daily, 10 days.
Atazanavir/Ritonavir/Lopinavir/ritonavirDRUG -
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Eligibility Criteria

Age Range3 Months to 66 Months
SexALL
Healthy VolunteersNo
Study Sites18

Key Inclusion Criteria: * Confirmed human immunodeficiency virus (HIV)-1 infection diagnosed by a positive virologic test result on 2 separate occasions by: * HIV DNA polymerase chain reaction * HIV RNA with values ≥1,000 copies/mL * Positive HIV enzyme-linked immunosorbent assay at ≥18 mont...

Countries:BrazilChileMexicoPeruSouth AfricaThailandSpainUnited StatesArgentinaItalyPuerto RicoCanadaColombiaCosta RicaDominican RepublicFranceGuatemalaHungaryIndonesiaMalaysiaPanamaPortugalRussiaSingaporeTaiwanAustraliaBelgiumNetherlandsUnited KingdomAustriaGermanyIsraelSwitzerlandVenezuela
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Frequently asked questions about Atazanavir

What is atazanavir used for?

Atazanavir is an antiretroviral medicine used to treat HIV and HIV-1 infection in adults. It is studied as part of combination regimens for human immunodeficiency virus infections, including nucleoside sparing regimens in patients with detectable viremia. Bristol-Myers Squibb Company develops it under the ticker BMY.

Who makes atazanavir?

Atazanavir is developed by Bristol-Myers Squibb Company, which trades under the ticker BMY. The company has sponsored Phase 1, Phase 2, and Phase 3 studies of the drug in HIV and HIV-1 infection, including bioequivalence and taste assessment studies of different atazanavir formulations.

What phase is atazanavir in?

Atazanavir is in Phase 3 development for HIV and HIV-1 infection. It is an investigational small molecule, and the clinical program includes 17 trials, of which 16 are completed and none are currently active. Studies have enrolled 1,399 participants in randomized, double-blind, active-controlled designs.

What clinical trials is atazanavir in?

Atazanavir has been studied in trials including NCT02542852, a Phase 2 nucleoside sparing regimen study in HIV-1 infected patients with detectable viremia, and NCT01837719, a Phase 1 bioequivalence study of atazanavir and cobicistat. Phase 1 taste studies include NCT02307656 and NCT01404572.