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ClinicalTrials.gov public records Last synced Sep 29, 2026, 11:12 PM EDT

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Showing 1–24 of 107 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: atazanavir/ritonavir Clear all
Completed Phase 3 Interventional Results available

Safety and Efficacy of Switching to a FDC of B/F/TAF From E/C/F/TAF, E/C/F/TDF, or ATV+RTV+FTC/TDF in Virologically Suppressed HIV-1 Infected Women

NCT02652624
View directory record Official record
Conditions
HIV-1 Infection
Interventions
E/C/F/TAF, E/C/F/TDF, ATV, RTV, FTC/TDF, B/F/TAF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older · Female only
Enrollment
472 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
29
States / cities
Stamford, Connecticut • Washington D.C., District of Columbia • Fort Lauderdale, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate Switching From Regimens Consisting of a Ritonavir-boosted Protease Inhibitor (PI) and Two Nucleoside Reverse Transcriptase Inhibitors (NRTIs) to a Fixed-dose Tablet Containing Emtricitabine/Rilpivirine/Tenofovir DF

NCT01252940
View directory record Official record
Conditions
HIV-1 Infection
Interventions
FTC/RPV/TDF, PI, RTV, NRTIs
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
66
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2015 · Synced Sep 29, 2026, 11:12 PM EDT
Completed No phase listed Observational

Tenofovir, Emtricitabine, Efavirenz and Atazanavir Pharmacokinetics in the Aging HIV-Infected Population

NCT01180075
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
tenofovir/emtricitabine/efavirenz (TDF/FTC/EFV), tenofovir/emtricitabine (TDF/FTC), Atazanavir (ATV), Ritonavir, Phlebotomy
Drug · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Roll-Over Protocol To Provide Atv And/Or Truvada For Extended Access

NCT01003990
View directory record Official record
Conditions
HIV
Interventions
Atazanavir, Atazanavir/Ritonavir, Tenofovir/Emtricitabine, Lopinavir/ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
16 Years and older
Enrollment
710 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2016
U.S. locations
12
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 11, 2017 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 4 Interventional Results available

A Simplification Study of Unboosted Reyataz With Epzicom (ASSURE)

NCT01102972
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
Reyataz + Norvir + Truvada, Reyataz + Epzicom
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
44
States / cities
Hobson City, Alabama • Phoenix, Arizona • Bakersfield, California + 36 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2013 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 1 Interventional

Pharmacokinetic Characteristics and Anti-Inflammatory Effects of Aprepitant In HIV-Infected Subjects

NCT02154360
View directory record Official record
Conditions
HIV Infection
Interventions
Aprepitant
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2017 · Synced Sep 29, 2026, 11:12 PM EDT
Completed No phase listed Observational

Sex, Aging and Antiretroviral Pharmacokinetics

NCT00666055
View directory record Official record
Conditions
HIV Infections
Interventions
ARV regimen chosen by treating physician
Drug
Lead sponsor
Kristine Patterson, MD
Other
Eligibility
19 Years and older · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 20, 2012 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Clinical Trial of CNS-targeted HAART (CIT2)

NCT00624195
View directory record Official record
Conditions
HIV Infections
Interventions
FDA Approved Antiretroviral Therapy (see list below)
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
5
States / cities
San Diego, California • San Francisco, California • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2014 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 4 Interventional Results available

Lopinavir/r or Fosamprenavir/r Switch to Atazanavir/r or Darunavir/r

NCT00756730
View directory record Official record
Conditions
HIV Infections
Interventions
ATV/r, DRV/r
Drug
Lead sponsor
Community Research Initiative of New England
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
11
States / cities
Phoenix, Arizona • Los Angeles, California • Orlando, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional

Atazanavir or Boosted Atazanavir Substitution for Ritonavir Boosted PI in Patients With Hyperlipidemia

NCT00160329
View directory record Official record
Conditions
Hyperlipidemia, HIV Infections
Interventions
Atazanavir
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2011 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Atazanavir and Ritonavir (ATV/RTV) and an Oral Contraceptive in Healthy Females

NCT00357604
View directory record Official record
Conditions
HIV Infections
Interventions
Ortho Tri-Cyclen (ethinyl estradiol + norgestimate), Ortho Tri-Cyclen LO (ethinyl estradiol + norgestimate) + Atazanavir/Ritonavir for 14 days then Ortho Tri-Cyclen for 7 days
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2011 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 4 Interventional

Drug Interaction Study of Famotidine and Atazanavir With Ritonavir in HIV-Infected Patients

NCT00384904
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir/Ritonavir, Atazanavir/Ritonavir + Famotidine, Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
3
States / cities
Voorhees Township, New Jersey • Chapel Hill, North Carolina • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 5, 2010 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction Study With Atazanavir/Ritonavir and Atazanavir

NCT00883935
View directory record Official record
Conditions
Healthy Volunteer
Interventions
GSK1349572, Atazanavir 300 mg, Atazanavir 400 mg, Ritonavir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 22, 2009 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate Switching From a TDF-Containing Combination Regimen to a TAF-Containing Fixed Dose Combination (FDC) in Virologically-Suppressed, HIV-1 Positive Participants

NCT01815736
View directory record Official record
Conditions
HIV, HIV Infections
Interventions
E/C/F/TAF, E/C/F/TDF, EFV/FTC/TDF, RTV, ATV, FTC/TDF, COBI
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
1,443 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
91
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 59 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Sep 29, 2026, 11:12 PM EDT
Terminated No phase listed Observational Results available

Pharmacokinetic Properties of Antiretroviral and Anti-Tuberculosis Drugs During Pregnancy and Postpartum

NCT04518228
View directory record Official record
Conditions
HIV, Tuberculosis
Interventions
Bictegravir (BIC), Tenofovir alafenamide (TAF), Long-acting injectable formulation of cabotegravir (CAB LA), Dolutegravir (DTG), Atazanavir/ritonavir (ATV/r), Darunavir/ritonavir (DRV/r), Lopinavir/ritonavir (LPV/r), Cobicistat, Ritonavir, First-Line TB Treatment, Second-Line TB Treatment, Doravirine (DOR)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
13
States / cities
Los Angeles, California • San Diego, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Not applicable Interventional

Atazanavir/Ritonavir Maintenance Therapy

NCT00084019
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir, Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
11
States / cities
Palo Alto, California • Aurora, Colorado • Honolulu, Hawaii + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioequivalence Study of Atazanavir 300 mg Capsule

NCT00393328
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir + Ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 8, 2011 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Atazanavir Used in Combination With Other Anti-HIV Drugs in HIV-Infected Infants, Children, and Adolescents

NCT00006604
View directory record Official record
Conditions
HIV Infections
Interventions
ATV, Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
91 Days to 21 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2014
U.S. locations
32
States / cities
Birmingham, Alabama • Alhambra, California • La Jolla, California + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of COBI-boosted Atazanavir Versus Ritonavir-boosted Atazanavir Each Administered With Emtricitabine/Tenofovir Disoproxil Fumarate in HIV-1 Infected, Antiretroviral Treatment-Naive Adults

NCT01108510
View directory record Official record
Conditions
HIV, HIV Infections
Interventions
COBI, RTV, ATV, FTC/TDF, COBI placebo, RTV placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
698 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
64
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 42 more
Source: ClinicalTrials.gov public record
Updated May 23, 2016 · Synced Sep 29, 2026, 11:12 PM EDT
Withdrawn Phase 3 Interventional

Second-line Treatment of HIV-1 With Ritonavir Boosted Atazanavir or Darunavir With an Optimized NRTI Backbone

NCT01605084
View directory record Official record
Conditions
HIV
Interventions
Atazanavir, Darunavir, Ritonavir, Optimized NRTI backbone
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
14
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Switch to Atazanavir and Brachial Artery Reactivity (SABAR) Study

NCT00225017
View directory record Official record
Conditions
HIV Infection, Hyperlipidemia
Interventions
Atazanavir, current antiretroviral regimen
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
5
States / cities
San Diego, California • Chicago, Illinois • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2012 · Synced Sep 29, 2026, 11:12 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Two Part Study to Evaluate Pharmacokinetics, Safety, and Antiviral Activity of Elvitegravir Administered With a PI/r Background Regimen for ARV Treatment-Experienced Pediatric Participants

NCT01923311
View directory record Official record
Conditions
Acquired Immune Deficiency Syndrome (AIDS), HIV Infections
Interventions
EVG, Background regimen
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
4 Weeks to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
3
States / cities
Aurora, Colorado • Durham, North Carolina • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 9, 2018 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 3 Interventional Results available

Induction/Simplification With Atazanavir + Ritonavir + Abacavir/Lamivudine Fixed-Dose Combination In HIV-1 Infection

NCT00440947
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus I, HIV Infection
Interventions
Abacavir (ABC)/lamivudine (3TC) + atazanavir (ATV) + ritonavir (/r), Abacavir (ABC)/lamivudine (3TC) + atazanavir (ATV)
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
62
States / cities
Phoenix, Arizona • Long Beach, California • Los Angeles, California + 43 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2012 · Synced Sep 29, 2026, 11:12 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Impact of Menstrual Cycle on Antiretroviral Pharmacokinetics in Healthy Women

NCT00869960
View directory record Official record
Conditions
Healthy
Interventions
tenofovir, emtricitabine, atazanavir, ritonavir
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 6, 2013 · Synced Sep 29, 2026, 11:12 PM EDT