Atazanavir (BMS-232632) in Combination With Ritonavir or Saquinavir, and Lopinavir/Ritonavir, Each With Tenofovir and a Nucleoside in Subjects With HIV

Bristol-Myers Squibb571 enrolled

Overview

The purpose of this study is to learn how well atazanavir (ATV) works in combination with ritonavir (RTV) or saquinavir (SQV) with tenofovir (TDF) and a nucleoside to reduce the viral load of treatment experienced subjects with human immunodeficiency virus (HIV). There is a comparison arm with lopinavir (LPV)/RTV and TDF and a nucleoside.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

571

Conditions

HIV Infections

Interventions

Atazanavir + ritonavir + tenofovir + nucleosideDRUG

Active Comparator, Capsules, tablets, Oral

Atazanavir + saquinavir + tenofovir + nucleosideDRUG

Active Comparator, Capsules, tablets, Oral

Lopinavir/ritonavir + tenofovir + nucleosideDRUG

Active Comparator, Capsules, tablets, Oral

Eligibility

Sex: ALLMin age: 16 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Virologic failure to 2 or more highly active antiretroviral therapy (HAART) regimens that, in total, have included at least one drug from all approved classes protease inhibitors, non-nucleoside reverse transcriptase inhibitors, nucleoside reverse transcriptase inhibitors (PI, NNRTI, NRTI): 1. Currently on a failing HAART regimen with 2 qualifying plasma viral load measurements (hospital/clinic value within 4 weeks of screening with viral load equivalent to =\>1,000 c/mL on the Roche Amplicor\[TM\] and central lab measurements of =\>1,000 c/mL (Roche Amplicor\[TM\]) within 4 weeks of randomization 2. Cluster of Differentiation 4 (CD4) cell count =\>50 cells/mm3 obtained within 4 weeks prior to randomization * =\>16 years of age (or minimum age as determined by local regulations or as legal requirements dictate); * History of prior virologic response to at least one HAART regimen, defined as a 1.0 log10 decline or a decline in viral load to \<400 c/mL by Roche Amplicor or \<500 c/mL by Chiron Quantiplex branched DNA (bDNA) assay * Both females of child bearing potential and males must utilize effective barrier contraception to reduce transmission of sexually transmitted disease, including human immunodeficiency virus (HIV). Other contraception in addition to barrier methods is permitted; interaction between atazanavir and oral contraceptives has not been studied. * Subjects must be able to provide written informed consent; * Subjects should be available for follow-up for a period of at least 48 weeks * Baseline laboratory values measured within 2 weeks prior to initiating study drugs as follows: 1. serum creatine \<1.5 times the upper limit of normal (ULN) 2. total serum lipase \<1.4 times the ULN 3. liver enzymes alanine aminotransferase (AST), aspartate aminotransferase (ALT) \<3 times the ULN 4. total serum bilirubin \<1.5 times the ULN Exclusion Criteria: * Prior use (=\>3 days) of atazanavir, TVF or LPV/RTV; if history of SQV, then must be phenotypically sensitive * the current failing antiretroviral regimen must have been administered for at least eight weeks at he initiation of screening and must not include both a PI and NNRTI * Presence of a newly diagnosed HIV-related opportunistic infection or any medical requiring acute therapy at the time of enrollment * Proven or suspected acute hepatitis in the 30 days prior to study entry. Subjects with chronic hepatitis are eligible provided that their liver function enzymes (ALT/AST) are \<3 x ULN * Previous therapy with agents with significant systemic myelosuppressive, neurotoxic, pancreatoxic, hepatoxic or cytotoxic potential within 3 months of study start or the expected need for such therapy at the time of enrollment of therapy with methadone or ribavirin/interferons or treatment with neurotoxic drugs or drugs that affect Cytochrome P450 3A4 (CYP3A4). * 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 * Intractable diarrhea (=\> 6 loose stools/day for at least 7 days consecutive days) within 30 days prior to study entry * Pregnancy or breast-feeding * History of hemophilia * Presence of cardiomyopathy * Any one of the following: 1. Heart rate-corrected QT (QTc) interval \>450 msec on the screening electrocardiogram (EKG) 2. Heart rate \<40 beats per minute (bpm) 3. Pause length \>3 seconds seen on EKG 4. Clinical symptoms potentially related to heart block 5. Third degree heart block * History of acute or chronic pancreatitis * If choosing 2'-3' dideoxyinosine (ddI) or 2',3'-didehydro-3'-deoxythymidine (d4T) as the NRTI: History or signs and symptoms of bilateral peripheral neuropathy =\> Grade 2 at the time of screening * Inability to tolerate oral medications * Any other clinical conditions or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for study or unable to comply with the dosing requirements.

Locations (29)

Unnamed facility

San Francisco, California, United States

Outcomes

Primary Outcomes

Mean Change From Baseline in HIV Ribonucleic Acid (RNA) at Week 24

Time frame: Baseline, Week 24

Mean Change From Baseline in HIV RNA at Week 48

Time frame: Baseline, Week 48

Mean Change From Baseline in HIV RNA at Week 96

Time frame: Baseline, Week 96

Secondary Outcomes

Mean Change From Baseline in HIV RNA at Week 2

Time frame: Baseline, Week 2

Participants Achieving Virologic Half Log Suppression (Limit of Quantification [LOQ] = 400 c/mL) at Week 24 (Overall and by Protease Inhibitor [PI] Sensitivity)

Number of participants with a \>=0.5 log10 decrease in HIV RNA from baseline or HIV RNA \< 400 c/mL at Week 24, by their baseline phenotypic sensitivity to their randomized PI.

Time frame: Baseline, Week 24

Participants Achieving Virologic Half Log Suppression (LOQ = 400 c/mL) at Week 48, (Overall and by PI Sensitivity)

Number of participants with a \>=0.5 log10 decrease in HIV RNA from baseline or HIV RNA \< 400 c/mL at Week 48, by their baseline phenotypic sensitivity to their randomized PI.

Time frame: Baseline, Week 48

Participants Achieving Virologic Half Log Suppression (LOQ = 400 c/mL) at Week 96

Number of participants with a \>=0.5 log10 decrease in HIV RNA from baseline or HIV RNA \< 400 c/mL at Week 96.

Time frame: Baseline, Week 96

Participants Achieving Virologic Half Log Suppression (LOQ = 50 c/mL) at Week 24

Time frame: Week 24

Data from ClinicalTrials.gov

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Unnamed facility

Torrance, California, United States

Unnamed facility

Boulder, Colorado, United States

Unnamed facility

Altamonte Springs, Florida, United States

Unnamed facility

Fort Lauderdale, Florida, United States

Unnamed facility

Fort Lauderdale, Florida, United States

Unnamed facility

Miami Beach, Florida, United States

Unnamed facility

Orlando, Florida, United States

Unnamed facility

Decatur, Georgia, United States

Unnamed facility

Honolulu, Hawaii, United States

...and 19 more locations

Participants Achieving Virologic Half Log Suppression (LOQ = 50 c/mL) at Week 24, by PI Sensitivity

Number of participants with a \>=0.5 log10 decrease in HIV RNA from baseline or HIV RNA \< 50 c/mL at Week 24, by their baseline phenotypic sensitivity to their randomized PI.

Time frame: Baseline, Week 24

Participants Achieving Virologic Half Log Suppression (LOQ = 50 c/mL) at Week 48

Time frame: Week 48

Participants Achieving Virologic Half Log Suppression (LOQ = 50 c/mL) at Week 48, by PI Sensitivity

Number of participants with a \>=0.5 log10 decrease in HIV RNA from baseline or HIV RNA \< 50 c/mL at Week 48, by their baseline phenotypic sensitivity to their randomized PI.

Time frame: Baseline, Week 48

Participants Achieving Virologic Half Log Suppression (LOQ = 50 c/mL) at Week 96

Time frame: Week 96

Participants Achieving Treatment Response (LOQ = 400 c/mL) Without Prior Failure at Week 24

Treatment Response = confirmed suppression to LOQ (400 c/mL). The Algorithm for Treatment Response Without Prior Failure (TRPWF) = participants staying in response at the analysis timepoint without having an intervening, confirmed rebound.

Time frame: Week 24

Participants Achieving Treatment Response (LOQ = 400 c/mL) Without Prior Failure at Week 48

Time frame: Week 48

Participants Achieving Treatment Response (LOQ = 400 c/mL) Without Prior Failure at Week 96

Time frame: Week 96

Participants Achieving Treatment Response (LOQ = 50 c/mL) Without Prior Failure at Week 24

Treatment Response = confirmed suppression to LOQ (50 c/mL). The Algorithm for Treatment Response Without Prior Failure (TRPWF) = participants staying in response at the analysis timepoint without having an intervening, confirmed rebound.

Time frame: Week 24

Participants Achieving Treatment Response (LOQ = 50 c/mL) Without Prior Failure at Week 48

Time frame: Week 48

Participants Achieving Treatment Response (LOQ = 50 c/mL) Without Prior Failure at Week 96

Time frame: Week 96

Change From Baseline in CD4 Cell Count at Week 24

Time frame: Baseline, Week 24

Change From Baseline in CD4 Cell Count at Week 48

Time frame: Baseline, Week 48

Change From Baseline in CD4 Cell Count at Week 96

Time frame: Baseline, Week 96

Correlation of ATV Minimum Plasma Concentration (Cmin), Inhibitory Quotient (IQ), and Number of Protease Inhibitor (PI) Mutations at Baseline With HIV RNA Change From Baseline at Week 24

Pearson correlations of the Cmin (trough plasma concentration), IQ (the ratio of Cmin of ATV to HIV IC50), and Number of baseline PI Mutations with HIV RNA change from baseline at Week 24 were explored.

Time frame: Baseline, Week 24

Correlation of ATV Minimum Plasma Concentration (Cmin), Inhibitory Quotient (IQ), and Number of Protease Inhibitor (PI) Mutations at Baseline With HIV RNA Change From Baseline at Week 48

Time frame: Baseline, Week 48

Correlation of ATV Minimum Plasma Concentration (Cmin) Inhibitory Quotient (IQ), and Number of PI Mutations at Baseline and CD4 Cell Count Change From Baseline at Week 24

Pearson correlations of the Cmin (trough plasma concentration), IQ (the ratio of Cmin of ATV to HIV IC50), and Number of baseline PI Mutations with CD4 cell count change from baseline at Week 24 were explored.

Time frame: Baseline, Week 24

Correlation of ATV Minimum Plasma Concentration (Cmin) Inhibitory Quotient (IQ), and Number of PI Mutations at Baseline and CD4 Cell Count Change From Baseline at Week 48

Time frame: Baseline, Week 48

Lipid Mean Percent Change From Baseline at Week 24

Mean percent change in total cholesterol, high density lipoprotein (HDL) cholesterol, fasting low density lipoprotein (LDL) cholesterol, and fasting triglycerides.

Time frame: Baseline, Week 24

Lipid Mean Percent Change From Baseline at Week 48

Mean percent change in total cholesterol, high density lipoprotein (HDL) cholesterol, fasting low density lipoprotein (LDL) cholesterol, and fasting triglycerides.

Time frame: Week 48

Lipid Mean Percent Change From Baseline at Week 96, Observed Values

Mean percent change in total cholesterol, high density lipoprotein (HDL) cholesterol, fasting low density lipoprotein (LDL) cholesterol, and fasting triglycerides.

Time frame: Week 96

Deaths, Serious Adverse Events (SAEs), and Adverse Events (AEs) Through Week 48

AE=any new untoward medical occurrence/worsening of a pre-existing medical condition regardless of causal relationship. SAE=any untoward medical occurrence at any dose that: results in death; is life-threatening; requires/prolongs inpatient hospitalization; results in persistent/significant disability; is cancer; is congenital anomaly/birth defect; results in drug dependency/abuse; is an important medical event.

Time frame: From Enrollment through Week 48

Most Common AEs and AEs of Interest Through Week 48

Prespecified AEs of interest included jaundice, ocular icterus, and hyperbilirubinemia.

Time frame: From Enrollment to Week 48

Fasting Glucose Mean Change From Baseline at Week 24

Time frame: Baseline, Week 24

Fasting Glucose Mean Change From Baseline at Week 48

Time frame: Week 48

Grade 3/4 Laboratory Abnormalities Through Week 48

Common Terminology Criteria for Adverse Events v3.0 (CTCAE) Grades:1=Mild, 2=Moderate, 3=Severe, 4=Life-threatening/disabling, 5=Death. Abnormal values: absolute neutrophil count: ≥500 to \<750/mm3 (grade 3), \<500/mm3 (grade 4); platelets: 20,000-49,999/mm3 (grade 3), \<20,000/mm3 or diffuse petechiae (grade 4); alanine transaminase (ALT): 5.1-10 x upper limit of normal (ULN; grade 3), \>10 x ULN (grade 4); aspartate transaminase (AST): 5.1-10 x ULN (grade 3), \>10 x ULN (grade 4); bilirubin: 2.6-5 x ULN (grade 3), \>5 x ULN (grade 4).

Time frame: From Enrollment to Week 48

Fridericia-corrected QT (QTcF) Interval and Change From Baseline by Analysis Time Point

The QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. The QT interval was corrected for heart rate using Fridericia's (QTcF) formula.

Time frame: Baseline, Week 4 predose, 2-3 hours postdose, 6-12 hours postdose, Week 12, Week 24, Week 48

PR Interval and Change From Baseline by Analysis Time Point

The PR interval is measured from the beginning of the P wave to the beginning of the QRS complex, and reflects the time the electrical impulse takes to travel from the sinus node through the atrioventricular (AV) node and entering the ventricles. The PR interval is therefore a good estimate of AV node function.

Time frame: Baseline, Week 4 predose, 2-3 hours postdose, 6-12 hours postdose, Week 12, Week 24, Week 48

Adherence to Regimen Though Week 48 Based on MACS the Multicenter AIDS Cohort Study (MACS) Adherence Questionnaire

The MACS adherence questionnaire asks patients how many medication doses they missed during the previous day, 2 days, 3 days and 4 days. Drug-specific questions included adherence with dose and frequency. Adherence was defined as taking all doses and numbers of pills as prescribed for each medication. This strict adherence cut-off was based on the guidelines stating that anything less than excellent adherence may result in a virus breakthrough and development of resistance.

Time frame: Baseline, Week 24, Week 48

Mean Score of European Quality of Life-5 Dimensions (EQ-5D) Health Index Score at Baseline, Mid-Study (Week 24), and Final (Week 48)

The EQ-5D is a 5-item questionnaire to assess health-related quality of life in 5 health dimensions (mobility, self-care, usual activity, pain/discomfort, anxiety/depression) are scored on a 3-level scale: no problems (1), some problems (2), extreme problems (3). Using a standard algorithm, responses are summarized into a single score, the EQ-5D Health Index Score (HIS), which ranges between 1 (representing perfect health) and 0 (representing the worst imaginable health state or death). The smallest coefficient of change is 0.03.

Time frame: Baseline, Week 24, Week 48

Mean Score of European Quality of Life-5 Dimensions (EQ-5D) Visual Analog Scale (VAS) at Baseline, Mid-Study (Week 24), and Final (Week 48)

The EQ-5D has a Visual Analog Scale (VAS), which is a feeling thermometer-like scale with a range between 0 and 100. Patients are required to draw a line from a box on the VAS scale to an actual mark on the thermometer-like scale that corresponds with a number that reflects their self-assessed health status at the time they are completing the questionnaire. Higher VAS scores indicate better overall health. There is no minimum clinically important difference reported in the literature for VAS.

Time frame: Baseline, Week 24, Week 48

Number of Participants Utilizing Resources for Managing Lipid Elevation

Participants' overall resource utilization for managing lipid elevation that includes the management of side effects of lipid lowering medications, such as those due to drug interactions.

Time frame: Baseline, Week 24, Week 48

Mean ATV, RTV and SQV Minimum Concentration (Cmin) Values

The minimum or "trough" concentration (Cmin) of a drug observed after its administration and just prior to the administration of a subsequent dose.

Time frame: collected at the pre-dose time point after receiving atazanavir for at least four weeks

HIV IC50 at Week 24

IC50: inhibitory concentration of drug required to reduce viral replication by 50%.

Time frame: Week 24

Inhibitory Quotient at Week 24

Inhibitory quotient is a measure of drug exposure and susceptibility in an individual. The IQ is typically calculated as the ratio of Cmin to HIV IC50.

Time frame: Baseline, Week 24

Inhibitory Quotient at Week 48

Inhibitory quotient is a measure of drug exposure and susceptibility in an individual. The IQ is typically calculated as the ratio of Cmin to HIV IC50.

Time frame: Baseline, Week 48

HIV RNA Level - Treated Subjects With Evaluable Cmins at Week 24

Week 24 HIV RNA level and change from baseline were summarized for treated subjects with evaluable Cmins.

Time frame: Baseline, Week 24

HIV RNA Level - Treated Subjects With Evaluable Cmins at Week 48

Week 24 HIV RNA level and change from baseline were summarized for treated subjects with evaluable Cmins.

Time frame: Baseline, Week 48