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ClinicalTrials.gov public records Last synced Oct 14, 2026, 9:13 PM EDT

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Showing 145–168 of 451 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ritonavir (rtv) Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Staggered Dosing on Interactions Between Paired Combinations of Nelfinavir, Ritonavir, and Saquinavir

NCT00000898
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate, Saquinavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2000
U.S. locations
4
States / cities
San Francisco, California • Stanford, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK706769/KALETRA Drug-drug Interaction Study

NCT00723775
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
GSK706769 & KALETRA
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2017 · Synced Oct 14, 2026, 9:13 PM EDT
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 14, 2026, 9:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Lopinavir/Ritonavir on Endothelial Function

NCT00076414
View directory record Official record
Conditions
Healthy
Interventions
Acetylcholine, L-NMMA
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 4 Interventional Results available

Nevirapine vs. Atazanavir Boosted With Ritonavir on a Background of Truvada in Human Immunodeficiency Virus (HIV) Infected Naive Patients (NEwArT)

NCT00552240
View directory record Official record
Conditions
HIV Infections
Interventions
tenofovir DF 300 mg QD, emtricitabine 200 mg QD, Nevirapine 200 mg BID, Atazanavir 300 mg, Ritonavir 100 mg
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
19
States / cities
Beverly Hills, California • Los Angeles, California • Denver, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2014 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 3 Interventional Results available

GEMINI Study - A Study of Saquinavir/Ritonavir in Treatment-Naive Patients With HIV-1 Infection

NCT00105079
View directory record Official record
Conditions
HIV Infections
Interventions
saquinavir [Invirase], Lopinavir/ritonavir, Emtricitabine/tenofovir disoproxil fumarate, Ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
337 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
19
States / cities
Hobson City, Alabama • Tucson, Arizona • Berkeley, California + 16 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2011 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 3 Interventional

Fosamprenavir Versus Other Protease Inhibitors

NCT00094523
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus I
Interventions
Fosamprenavir
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
51
States / cities
Beverly Hills, California • Fresno, California • Laguna Beach, California + 42 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2018 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 1 Interventional

A Phase I/II Double-Blind Controlled Trial to Determine the Safety and Immunogenicity of HIV-1 MN rgp160 Immuno AG Vaccine Therapy in HIV-Infected Individuals With Greater Than or Equal to 500/mm3 CD4+ T Cells and 200-400/mm3 CD4+ T Cells

NCT00000822
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, gp160 Vaccine (Immuno-AG), Stavudine, Didanosine
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 2 Interventional Results available

A Clinical Study Of An Investigational Regimen Including Marketed HIV Drugs In HIV-1 Pediatric Subjects Ages 2-18 Years

NCT00040664
View directory record Official record
Conditions
HIV Infection
Interventions
ritonavir, fosamprenavir
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
2 Years to 18 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2008
U.S. locations
17
States / cities
Birmingham, Alabama • Los Angeles, California • Jacksonville, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2017 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 2 Interventional

A Study of HIV-Disease Development in Aging

NCT00006144
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Emtricitabine, Stavudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
44
States / cities
Los Angeles, California • Palo Alto, California • San Francisco, California + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study in Healthy Adults to Evaluate the Bioavailability of Two Test Tablet Formulations of ABT-450

NCT01091649
View directory record Official record
Conditions
Healthy
Interventions
ABT-450, ritonavir
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Waukegan, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 21, 2010 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 1Phase 2 Interventional

Safety of Saquinavir and High Doses of Lopinavir/Ritonavir in Children With HIV

NCT00084058
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/ritonavir, Saquinavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 17 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
13
States / cities
Birmingham, Alabama • Long Beach, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 14, 2026, 9:13 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 Oct 14, 2026, 9:13 PM EDT
Terminated Phase 2 Interventional Results available

Dose-finding Study of GSK2248761 in Antiretroviral Therapy-experienced Subjects With NNRTI-resistant HIV Infection

NCT01199731
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
GSK2248761 100 mg once daily, GSK2248761 200 mg once daily, Etravirine
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
30
States / cities
Birmingham, Alabama • Phoenix, Arizona • Bakersfield, California + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 3 Interventional Results available

BMS-Reyataz Study in Treatment in Naive Subjects to Compare the Efficacy and Safety Between Boosted Reyataz and Kaletra When in Combination With Fixed Dose Truvada

NCT00272779
View directory record Official record
Conditions
HIV Infections
Interventions
ATV, RTV, Tenofovi-Emtricitabine (TDF/FTC) tablet, LPV
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
1,057 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
8
States / cities
Phoenix, Arizona • Laguna Beach, California • Washington D.C., District of Columbia + 5 more
Source: ClinicalTrials.gov public record
Updated May 9, 2011 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 3 Interventional

TMC114-C211: Trial of an Investigational Protease Inhibitor TMC114 With Ritonavir ("TMC114/r") in HIV-1 Infected Patients Who Have Never Been Treated With Antiretroviral Medications.

NCT00258557
View directory record Official record
Conditions
HIV
Interventions
LPV/RTV, TMC-114/RTV
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
18 Years and older
Enrollment
692 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
24
States / cities
Phoenix, Arizona • Beverly Hills, California • Long Beach, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2013 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 4 Interventional Results available

DRIVESHAFT: Darunavir/Ritonavir In HIV-infected Virologically-suppressed Experienced Subjects

NCT01423812
View directory record Official record
Conditions
HIV
Interventions
Twice-daily combination Darunavir and ritonavir, Once-daily combination Darunavir and ritonavir
Drug
Lead sponsor
Ruth M. Rothstein CORE Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 4 Interventional Results available

Real World Study: Genotype 1 Chronic Hepatitis C Virus Treatment and Evaluation of Real World SVR and PRO

NCT02461745
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
ombitasvir, paritaprevir/r, dasabuvir + ribavirin, ombitasvir, paritaprevir/r, dasabuvir
Drug
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
4
States / cities
Irvine, California • Los Angeles, California • San Diego, California + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2021 · Synced Oct 14, 2026, 9:13 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Treatment for COVID-19 in High-Risk Adult Outpatients

NCT04354428
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
Ascorbic Acid, Hydroxychloroquine Sulfate, Azithromycin, Folic Acid, Lopinavir 200 MG / Ritonavir 50 MG [Kaletra]
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 80 Years
Enrollment
289 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
6
States / cities
Chicago, Illinois • New Orleans, Louisiana • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of the HIV Protease Inhibitors Atazanavir and Lopinavir/Ritonavir on Cardiovascular Disease Risk Factors

NCT00720590
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Atazanavir, Lopinavir/ritonavir, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 25, 2017 · Synced Oct 14, 2026, 9:13 PM EDT
Completed No phase listed Observational

A Pilot Study of the Short-Term Effects of Antiretroviral Management Based on Plasma Genotypic Antiretroviral Resistance Testing (GART) Compared With Antiretroviral Management Without Plasma GART

NCT00000874
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 1999
U.S. locations
24
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2013 · Synced Oct 14, 2026, 9:13 PM 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 14, 2026, 9:13 PM EDT
Terminated Phase 4 Interventional Results available

Kaletra and Viread in Antiretroviral Naïve Patients

NCT00679926
View directory record Official record
Conditions
HIV Infections
Interventions
Once daily
Drug
Lead sponsor
Oklahoma State University Center for Health Sciences
Other
Eligibility
18 Years to 70 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 4, 2020 · Synced Oct 14, 2026, 9:13 PM EDT
Completed Phase 3 Interventional Results available

Study Comparing Lopinavir/Ritonavir (LPV/r) + Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF) With a Nucleoside Sparing Regimen Consisting of Lopinavir/Ritonavir + Raltegravir (RAL)

NCT00711009
View directory record Official record
Conditions
Human Immunodeficiency Virus Infection
Interventions
lopinavir/ritonavir (LPV/r), emtricitabine/tenofovir disoproxil fumarate (FTC/TDF), raltegravir (RAL)
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
14
States / cities
Phoenix, Arizona • Beverly Hills, California • Atlantis, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Oct 14, 2026, 9:13 PM EDT