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ClinicalTrials.gov public records Last synced Oct 15, 2026, 9:00 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 265–288 of 451 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ritonavir (rtv) Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Relative Bioavailability Study of PF-07321332/Ritonavir Oral Powder Relative to the Commercial Tablets in Healthy Participants

NCT05263921
View directory record Official record
Conditions
Bioavailability
Interventions
PF-07321332/ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 6, 2024 · Synced Oct 15, 2026, 9:00 AM 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 Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional

Once-Daily Drug Regimen for HIV-Infected Patients

NCT00001968
View directory record Official record
Conditions
Acquired Immunodeficiency Syndrome, HIV Infections
Interventions
Amprenavir, Ritonavir, Abacavir, Lamivudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 9:00 AM EDT
Recruiting Phase 1 Interventional

STARLITE for Unresectable High-Grade Gliomas

NCT06428045
View directory record Official record
Conditions
High Grade Glioma
Interventions
Magnetic Resonance (MR)-guided Laser Interstitial Thermal Therapy (LITT), Abacavir, Lamivudine, Ritonavir, Temozolomide, Focal Radiotherapy
Procedure · Drug · Radiation
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 15, 2026, 9:00 AM EDT
Not listed Phase 2 Interventional

Emtricitabine Given Once A Day With Other Anti-HIV Drugs in Children With HIV

NCT00017992
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Emtricitabine, Stavudine
Drug
Lead sponsor
Triangle Pharmaceuticals
Industry
Eligibility
3 Months to 17 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
8
States / cities
Los Angeles, California • Jacksonville, Florida • Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional

A Study of the Safety and Effectiveness of Treating Advanced AIDS Patients Between Ages 4 and 22 With 7 Drugs, Some at Higher Than Usual Doses

NCT00001108
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate, Saquinavir, Nevirapine, Lamivudine, Stavudine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Years to 22 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2000
U.S. locations
19
States / cities
Birmingham, Alabama • Los Angeles, California • Miami, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 9:00 AM 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 Oct 15, 2026, 9:00 AM EDT
Completed Phase 3 Interventional

A Pilot Study of Atazanavir/Ritonavir/Efavirenz as a Nucleoside Sparing Regimen

NCT00135343
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanvir/ritonavir + efavirenz
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
15
States / cities
San Francisco, California • Washington D.C., District of Columbia • Atlantis, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Not applicable Interventional

Effects of Two Anti-HIV Drug Combinations on the Immune Systems of HIV-Infected Patients Who Have Never Received Anti-HIV Drugs

NCT00004855
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Abacavir sulfate, Nevirapine, Lamivudine, Stavudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
23
States / cities
Los Angeles, California • Denver, Colorado • Honolulu, Hawaii + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 9:00 AM 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 Oct 15, 2026, 9:00 AM 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 Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional

Safety and Effectiveness of Lopinavir/Ritonavir in HIV Infected Infants

NCT00038480
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
14 Days to 6 Months
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
14
States / cities
Oakland, California • San Francisco, California • Aurora, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional

Antiretroviral Drug Interaction Study in Volunteers With HIV

NCT01479361
View directory record Official record
Conditions
HIV, PCP, Toxoplasmosis
Interventions
Atovaquone 750 mg twice daily, Atovaquone 1500 mg twice daily
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 70 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Oct 15, 2026, 9:00 AM EDT
Not listed Phase 3 Interventional

Comparison of GW433908/Ritonavir to Nelfinavir When Used With Abacavir and Lamivudine in Patients That Have Not Taken Antiretroviral Drugs

NCT00009061
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Abacavir sulfate, Nelfinavir mesylate, Lamivudine, GW433908
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
13 Years and older
Enrollment
624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
37
States / cities
Fountain Valley, California • Los Angeles, California • Sacramento, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 3 Interventional

Directly Observed Therapy in High Risk Populations in Newark, NJ

NCT00285883
View directory record Official record
Conditions
Directly Observed Therapy, HIV Infections
Interventions
Invirase, Norvir
Drug
Lead sponsor
Saint Michael's Medical Center
Other
Eligibility
18 Years and older · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 28, 2006 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate Switching From Regimens Consisting of a Ritonavir-boosted Protease Inhibitor Plus Emtricitabine/Tenofovir Fixed-Dose Combination to the Elvitegravir/Cobicistat/Emtricitabine/Tenofovir DF Single-Tablet Regimen in Virologically Suppressed, HIV-1 Infected Patients

NCT01475838
View directory record Official record
Conditions
Acquired Immunodeficiency Syndrome, HIV Infections
Interventions
PI, RTV, FTC/TDF, Stribild
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
438 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
45
States / cities
Phoenix, Arizona • Beverly Hills, California • Hayward, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2016 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug-Drug Interaction Study Assessing Effect of Carbamazepine on PF-07321332 Boosted With Ritonavir

NCT04962230
View directory record Official record
Conditions
Healthy Participant
Interventions
PF 07321332/ritonavir, Carbamazepine
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug Interactions Between Voriconazole and Atazanavir Coadministered as Atazanavir/Ritonavir in Healthy Participants

NCT00833482
View directory record Official record
Conditions
Human Immunodeficiency Virus Type 1 (HIV-1), HIV Infections
Interventions
Voriconazole, Atazanavir, Ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2012 · Synced Oct 15, 2026, 9:00 AM EDT
Not listed Phase 2 Interventional

Safety and Effectiveness of Giving Indinavir, Ritonavir, Stavudine, and Lamivudine to HIV-Infected Patients Who Have Never Received Anti-HIV Drugs

NCT00002451
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir, Lamivudine, Stavudine
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
Miami, Florida • Albany, New York • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1Phase 2 Interventional

ABT-378/Ritonavir in Combination With Reverse Transcriptase Inhibitors in Antiretroviral Naïve HIV-Infected Subjects

NCT00004578
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Lamivudine, Stavudine
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2005
U.S. locations
10
States / cities
Beverly Hills, California • Denver, Colorado • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2008 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 4 Interventional Results available

Abacavir/Lamivudine Versus Emtricitabine/Tenofovir Both In Combination With Lopinavir/Ritonavir For The Treatment Of HIV

NCT00244712
View directory record Official record
Conditions
HIV Infection
Interventions
emtricitabine/tenofovir, abacavir/lamivudine
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
688 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
72
States / cities
Phoenix, Arizona • Tucson, Arizona • Beverly Hills, California + 52 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2010 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Rollover Trial Safety and Tolerability of Combination Tipranavir and Ritonavir Use in HIV 1 Infected Subjects

NCT00146328
View directory record Official record
Conditions
HIV Infections
Interventions
Tipranavir
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
997 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2001
U.S. locations
86
States / cities
Phoenix, Arizona • Berkeley, California • Fountain Valley, California + 56 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2014 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Phase 1 Interventional Results available

Pharmacokinetics of Atazanavir/Ritonavir in HIV-1 Infected Pregnant Women

NCT00326716
View directory record Official record
Conditions
HIV Infection
Interventions
Atazanavir + Ritonavir + Combivir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older · Female only
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
West Palm Beach, Florida • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 16, 2011 · Synced Oct 15, 2026, 9:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Protease Inhibitors on the Pharmacokinetics of Oral Norethindrone Contraception

NCT01667978
View directory record Official record
Conditions
Pregnancy, HIV, AIDS
Interventions
Norethindrone acetate
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2015 · Synced Oct 15, 2026, 9:00 AM EDT