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ClinicalTrials.gov public records Last synced Oct 7, 2026, 9:24 PM EDT

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Showing 25–48 of 451 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ritonavir (RTV) Clear all
Completed Phase 2 Interventional

Dose Ranging Trial of Tipranavir/Ritonavir in Treatment-Experienced HIV Infected Individuals

NCT00034866
View directory record Official record
Conditions
HIV Infections
Interventions
Protease inhibitor tipranavir
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002
U.S. locations
50
States / cities
Phoenix, Arizona • Fountain Valley, California • Long Beach, California + 40 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2005 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 4 Interventional Results available

Changes in Triglyceride and Other Lipids (Levels of Fats Found in Blood) When Taking Darunavir Compared to Atazanavir in HIV-infected Patients That Have Never Received Treatment

NCT00757783
View directory record Official record
Conditions
HIV
Interventions
ritonavir, darunavir, emtricitabine [FTC]/tenofovir [TDF], atazanavir
Drug
Lead sponsor
Tibotec, Inc
Industry
Eligibility
18 Years to 99 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
15
States / cities
Los Angeles, California • Glastonbury, Connecticut • Washington D.C., District of Columbia + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2015 · Synced Oct 7, 2026, 9:24 PM EDT
Completed No phase listed Observational

A Comparison of Adherence Rates to Ritonavir and Its Accompanying Protease Inhibitor

NCT00432783
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 27, 2018 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Not applicable Interventional

Study of Anti-HIV Therapy Intensification

NCT00034086
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Lamivudine/Zidovudine, Tenofovir disoproxil fumarate, Pneumococcal Vaccine, Polyvalent (23-valent), Lamivudine, Stavudine, Zidovudine, Didanosine, Lyme Disease Vaccine Recombinant OspA, Haemophilus B Conjugate Vaccine
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
3
States / cities
Aurora, Colorado • Chicago, Illinois • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 18, 2012 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Drug Interaction of PA-824, an Investigational Tuberculosis Medication, Together With Efavirenz, Ritonavir-Boosted Lopinavir, or Rifampin

NCT01571414
View directory record Official record
Conditions
Tuberculosis
Interventions
PA-824, Efavirenz (EFV), Lopinavir/Ritonavir (LPV/r), Rifampin (RIF)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
4
States / cities
San Francisco, California • Baltimore, Maryland • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of E/C/F/TDF Versus RTV-Boosted ATV Plus FTC/TDF in HIV-1 Infected, Antiretroviral Treatment-Naive Women

NCT01705574
View directory record Official record
Conditions
Acquired Immunodeficiency Syndrome, HIV Infections
Interventions
E/C/F/TDF, ATV, RTV, FTC/TDF, E/C/F/TDF Placebo, ATV Placebo, RTV Placebo, FTC/TDF Placebo, E/C/F/TAF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older · Female only
Enrollment
583 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
41
States / cities
Los Angeles, California • Sacramento, California • Washington D.C., District of Columbia + 31 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2019 · Synced Oct 7, 2026, 9:24 PM 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 7, 2026, 9:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction Study With Protease Inhibitors

NCT00774735
View directory record Official record
Conditions
Healthy Subjects, Infection, Human Immunodeficiency Virus
Interventions
GSK1349572
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 13, 2010 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

KALETRA Or LEXIVA With Ritonavir Combined With EPIVIR And Abacavir In Naive Subjects Over 48 Weeks

NCT00085943
View directory record Official record
Conditions
HIV Infection, Infection, Human Immunodeficiency Virus
Interventions
LEXIVA (GW433908), Ritonavir, KALETRA, EPIVIR, Ziagen, Abacavir/Lamivudine, Fosamprenavir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
866 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
60
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 42 more
Source: ClinicalTrials.gov public record
Updated May 16, 2011 · Synced Oct 7, 2026, 9:24 PM EDT
Not listed Phase 2 Interventional

IRAK 4 Inhibitor (PF-06650833) in Hospitalized Patients With COVID-19 Pneumonia and Exuberant Inflammation.

NCT04933799
View directory record Official record
Conditions
COVID-19 Pneumonia
Interventions
PF-06650833, Matching Placebo
Drug
Lead sponsor
Giovanni Franchin, M.D, Ph.D
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 2Phase 3 Interventional Results available

A Phase II/III Trial of Lopinavir/Ritonavir Dosed According to the WHO Pediatric Weight Band Dosing Guidelines

NCT01172535
View directory record Official record
Conditions
HIV
Interventions
Lopinavir/ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Weeks and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
3
States / cities
La Jolla, California • Aurora, Colorado • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 1 Interventional

Safety and Tolerance of Indinavir Plus Ritonavir in HIV-Positive Patients Failing Therapy With Amprenavir, Nelfinavir, or Saquinavir

NCT00001133
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
7
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Effects of Cytochrome P450 1A2 Induction by Ritonavir on BMS-986165 Drug Levels and Effects in Healthy Participants

NCT04055506
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986165, Ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 18, 2020 · Synced Oct 7, 2026, 9:24 PM EDT
Recruiting Phase 1Phase 2 Interventional

Very Early Intensive Treatment of Infants Living With HIV to Achieve HIV Remission

NCT02140255
View directory record Official record
Conditions
HIV Infection
Interventions
Nucleoside Reverse Transcriptase Inhibitors (NRTIs), Nevirapine (NVP), Lopinavir/Ritonavir (LPV/r), Raltegravir (RAL), VRC01, Dolutegravir (DTG), VRC07-523LS
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 48 Hours
Enrollment
1,120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2031
U.S. locations
21
States / cities
La Jolla, California • Los Angeles, California • Aurora, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 7, 2026, 9:24 PM 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 7, 2026, 9:24 PM 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 7, 2026, 9:24 PM EDT
Completed Phase 4 Interventional

Boosted Atazanavir and Truvada Given Once-Daily - BATON Study

NCT00224445
View directory record Official record
Conditions
HIV Infections
Interventions
Truvada, Atazanavir, Ritonavir
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Foster City, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2013 · Synced Oct 7, 2026, 9:24 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 Oct 7, 2026, 9:24 PM EDT
Completed Phase 1 Interventional

A Study on the Management of Combination Anti-HIV Drug Therapy in HIV-Positive Children With Prior Treatment

NCT00000902
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate, Nevirapine, Lamivudine, Stavudine, Zidovudine, Zalcitabine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 21 Years
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2002
U.S. locations
59
States / cities
Birmingham, Alabama • Mobile, Alabama • La Jolla, California + 42 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 3 Interventional Results available

Dolutegravir Compared to Darunavir/Ritonavir , Each in Combination With Dual Nucleoside Reverse Transcriptase Inhibitors (NRTIs) in ART-naive Subjects

NCT01449929
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
dolutegravir 50 mg OAD, darunavir 800mg OAD, ritonavir 100mg OAD
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
488 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
33
States / cities
Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2018 · Synced Oct 7, 2026, 9:24 PM EDT
Completed No phase listed Observational Results available

A US Study to Look at Loss of Work and Healthcare Costs for People Affected With Mild-to-moderate COVID 19 Who Have High Chances of the Disease Becoming Severe

NCT07072793
View directory record Official record
Conditions
COVID-19 (Coronavirus Disease 2019)
Interventions
nirmatrelvir-ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
131,005 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 3 Interventional Results available

A Study of an Investigational Regimen Combining FDA Approved HIV Drugs in HIV-Infected Subjects

NCT00363142
View directory record Official record
Conditions
HIV Infection, Infection, Human Immunodeficiency Virus
Interventions
Half-boosted Fosamprenavir, Full Boosted Fosamprenavir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
211 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
49
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 39 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2010 · Synced Oct 7, 2026, 9:24 PM EDT
Terminated Phase 3 Interventional Results available

Comparative Trial Of Maraviroc Versus Emtricitabine/Tenofovir Both With Darunavir/Ritonavir In Antiretroviral-Naive Patients Infected With CCR5 Tropic HIV 1

NCT01345630
View directory record Official record
Conditions
HIV-1
Interventions
Maraviroc, Emtricitabine/tenofovir, darunavir/ritonavir 800/100 mg, placebo for emtricitabine/tenofovir, placebo for maraviroc
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
813 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
84
States / cities
Birmingham, Alabama • Hobson City, Alabama • Hayward, California + 45 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2016 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 3 Interventional Results available

Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF

NCT02121795
View directory record Official record
Conditions
HIV-1 Infection
Interventions
FTC/TDF, F/TAF, Allowed third antiretroviral agent, FTC/TDF Placebo, F/TAF Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
668 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
57
States / cities
Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 40 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2020 · Synced Oct 7, 2026, 9:24 PM EDT