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ClinicalTrials.gov public records Last synced Oct 15, 2026, 1:36 PM EDT

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Showing 313–336 of 451 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ritonavir (rtv) Clear all
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 Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Danoprevir in Healthy Volunteers And Patients With Hepatic Impairment

NCT01185873
View directory record Official record
Conditions
Healthy Volunteer
Interventions
danoprevir, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 70 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Not applicable Interventional

A Study of Ritonavir (ABT-538) When Used With Nelfinavir in HIV-Infected Patients

NCT00002201
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate
Drug
Lead sponsor
Abbott
Industry
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 20, 2009 · Synced Oct 15, 2026, 1:36 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 Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetic Study of Pitavastatin and Ritonavir-Boosted Darunavir or Efavirenz

NCT01695954
View directory record Official record
Conditions
Hyperlipidemia, HIV
Interventions
Pitavastatin, Darunavir, Ritonavir, Efavirenz
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 60 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 4 Interventional

A Pilot Study of Kaletra and Intelence Tablets in Naive Subjects

NCT01045369
View directory record Official record
Conditions
HIV Infections
Interventions
Kaletra and Intelence Tablets
Drug
Lead sponsor
Therapeutic Concepts
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2017 · Synced Oct 15, 2026, 1:36 PM EDT
Terminated Phase 1 Interventional

BAY 43-9006 (Sorafenib) to Treat Patients With Kaposi's Sarcoma

NCT00287495
View directory record Official record
Conditions
Kaposi's Sarcoma, HHV-8, KSHV
Interventions
BAY 43-9006
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 110 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 12, 2019 · Synced Oct 15, 2026, 1:36 PM EDT
Terminated Phase 3 Interventional Results available

A Study to Treat Subjects With Telaprevir, Ribavirin, and Peginterferon Who Are Coinfected With HIV and Hepatitis C Virus (HCV)

NCT01467479
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa-2a, Highly Active Antiretroviral Therapy (HAART)
Drug · Biological
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 65 Years
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
46
States / cities
Birmingham, Alabama • Bakersfield, California • Beverly Hills, California + 42 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional

Drug Interactions Among Anti-HIV Agents

NCT00001766
View directory record Official record
Conditions
HIV Infection
Interventions
Amprenavir, Efavirenz, Abacavir, Nelfinavir, Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Results available

Cabozantinib S-Malate in Treating Patients With Advanced Solid Tumors and Human Immunodeficiency Virus

NCT01822522
View directory record Official record
Conditions
Advanced Malignant Solid Neoplasm, HIV Infection, Metastatic Malignant Solid Neoplasm, Recurrent Malignant Solid Neoplasm, Unresectable Solid Neoplasm
Interventions
Cabozantinib S-malate, Laboratory Biomarker Analysis, Pharmacological Study
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
20
States / cities
La Jolla, California • Los Angeles, California • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Oct 15, 2026, 1:36 PM EDT
Not listed Phase 3 Interventional

Comparison of Two Dosing Regimens of GW433908/Ritonavir Versus Lopinavir/Ritonavir for 48 Weeks in HIV Patients Who Have Taken Protease Inhibitors and Experienced Virological Failure

NCT00025727
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Ritonavir, GW433908
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
13 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2001
U.S. locations
32
States / cities
Phoenix, Arizona • Long Beach, California • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacokinetic Interactions Between Buprenorphine and Kaletra (Lopinavir/Ritonavir)

NCT00571961
View directory record Official record
Conditions
HIV Infections
Interventions
Kaletra (lopinavir/ritonavir), buprenorphine, Clinical evaluations/Blood draws
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 21, 2012 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 2Phase 3 Interventional Results available

EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19

NCT04960202
View directory record Official record
Conditions
COVID-19
Interventions
PF-07321332, Ritonavir, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
2,091 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
73
States / cities
Pelham, Alabama • Mesa, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 2 Interventional Results available

TMC125-TiDP2-C238: An Exploratory Pharmacokinetics, Safety and Anti-HIV Activity Study of Etravirine (ETR) When Given With Boosted Atazanavir (ATV/Rtv) at Two Different Doses and 1 Nucleoside Reverse Transcriptase Inhibitor (NRTI) in Treatment Experienced HIV Patients

NCT00896051
View directory record Official record
Conditions
HIV Infections, Acquired Immunodeficiency Syndrome
Interventions
Atazanavir (ATV) 300 mg, Atazanavir (ATV) 400 mg, Ritonavir (rtv) 100 mg, Nucleo(side)/(tide) reverse transcriptase inhibitors (NRTIs), Etravirine (ETR) 200 mg, Tenofovir disoproxil fumarate (TDF) 300 mg
Drug
Lead sponsor
Janssen R&D Ireland
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
10
States / cities
Little Rock, Arkansas • Bakersfield, California • Beverly Hills, California + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2013 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Relative Bioavailability Study of 4 Different Formulations of PF-07321332 Relative to the Commercial Tablet Formulation

NCT05263895
View directory record Official record
Conditions
Bioavailability
Interventions
PF-07321332/ritonavir, PF-07321332
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 11, 2025 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 2 Interventional

A Simplified Kaletra® (Lopinavir/Ritonavir)-Based Therapy Versus a Sustiva® (Efavirenz)-Based Standard of Care in Previously Non-Treated HIV-Infected Subjects

NCT00075231
View directory record Official record
Conditions
HIV Infections
Interventions
Kaletra® (lopinavir/ritonavir), Combivir® (lamivudine, zidovudine), Sustiva® (efavirenz)
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
1
States / cities
Fountain Valley, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2006 · Synced Oct 15, 2026, 1:36 PM EDT
Withdrawn Phase 2 Interventional

Peginterferon Lambda and Lonafarnib Boosted With Ritonavir 48-Week Combination Therapy for Delta Hepatitis

NCT05953545
View directory record Official record
Conditions
Chronic Hepatitis Delta
Interventions
Peginterferon Lambda
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Drug Interaction Study of Lopinavir/Ritonavir and Gemfibrozil

NCT00474201
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Lopinavir/Ritonavir, Gemfibrozil
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Oct 15, 2026, 1:36 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 15, 2026, 1:36 PM EDT
Completed Phase 3 Interventional

Comparing the Safety, Effectiveness, and Tolerability of Three Anti-HIV Drug Regimens for Treatment-Naive Patients

NCT00050895
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/ritonavir, Efavirenz, Stavudine, Zidovudine, Lamivudine, Tenofovir disoproxil fumarate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
775 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
59
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 34 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 1:36 PM EDT
Withdrawn Not applicable Interventional

Lopinavir and Ritonavir in Improving Immune Response to Vaccines in Patients With Complete Remission Following A Bone Marrow Transplant for Hodgkin Lymphoma

NCT01165645
View directory record Official record
Conditions
Hodgkin Lymphoma, Stage I Adult Hodgkin Lymphoma, Stage II Adult Hodgkin Lymphoma, Stage III Adult Hodgkin Lymphoma, Stage IV Adult Hodgkin Lymphoma
Interventions
lopinavir, ritonavir, polymerase chain reaction, flow cytometry, enzyme-linked immunosorbent assay, laboratory biomarker analysis
Drug · Genetic · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 2 Interventional Results available

Raltegravir + Lopinavir/Ritonavir Versus Efavirenz + Tenofovir + Emtricitabine in Treatment Naive Patients

NCT00752856
View directory record Official record
Conditions
HIV Infections
Interventions
Kaletra + Isentress, Atripla
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
6
States / cities
Long Beach, California • Los Angeles, California • Orange, California + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Not applicable Interventional

Effects of Anti-HIV Therapy on Treatment for Hepatitis C in HCV/HIV Infected Adults

NCT00100581
View directory record Official record
Conditions
HIV Infections, Hepatitis C
Interventions
Efavirenz, Lamivudine, Lopinavir/ritonavir, Pegylated interferon alfa-2a, Ribavirin, Tenofovir disoproxil fumarate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
2
States / cities
New York, New York • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 1:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction With Etravirine and Either Darunavir/Ritonavir or Lopinavir/Ritonavir

NCT00867152
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Darunavir, Etravirine, Ritonavir, Lopinavir/ritonavir, GSK1349572
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 22, 2012 · Synced Oct 15, 2026, 1:36 PM EDT