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Showing 1–24 of 148 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Ritonavir 100 mg Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of AMD070 When Administered Alone or Boosted With Low-Dose Ritonavir in HIV Uninfected Men

NCT00063804
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, AMD070
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years · Male only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2006
U.S. locations
2
States / cities
Baltimore, Maryland • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 2 Interventional Results available

Raltegravir + Lopinavir/Ritonavir or Emtricitabine/Tenofovir for HIV Treatment Naive Subjects

NCT00654147
View directory record Official record
Conditions
HIV Infections
Interventions
Raltegravir & Lopinavir/ritonavir, Raltegravir and emtricitabine/tenofovir
Drug
Lead sponsor
Margaret A. Fischl, M.D.
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 2, 2015 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 2 Interventional

A Study of RO5024048 in Combination With Ritonavir-Boosted Danoprevir With or Without Copegus (Ribavirin) in Interferon-Naïve Patients With Chronic Hepatitis C Genotype 1 (INFORM-SVR)

NCT01278134
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Copegus placebo, RO5024048, danoprevir, peginterferon alfa-2a [Pegasys], ribavirin [Copegus], ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
18
States / cities
La Jolla, California • Sacramento, California • Orlando, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Drug-Drug Interaction Between Darunavir and Danoprevir Administered Together With Low-Dose Ritonavir in Healthy Volunteers

NCT01519336
View directory record Official record
Conditions
Healthy Volunteer
Interventions
danoprevir, darunavir, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 25, 2026, 8:51 AM 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 21, 2009 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 2 Interventional

An Open Label Trial of TMC114/RTV in HIV-1 Infected, Treatment-experienced Subjects.

NCT00081588
View directory record Official record
Conditions
HIV Infection
Interventions
TMC114
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
18 Years and older
Enrollment
555 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
26
States / cities
Birmingham, Alabama • Beverly Hills, California • La Jolla, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2014 · Synced Sep 25, 2026, 8:51 AM 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 24, 2017 · Synced Sep 25, 2026, 8:51 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

HIV Antiretroviral Drugs and Metabolism

NCT00525239
View directory record Official record
Conditions
HIV Infections
Interventions
ritonavir, lopinavir/ritonavir, atazanavir/ritonavir, efavirenz
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 15, 2011 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Darunavir/Ritonavir and Rosuvastatin Pharmacokinetic Study

NCT00885495
View directory record Official record
Conditions
HIV Infections
Interventions
darunavir, ritonavir, rosuvastatin, rosuvastatin, darunavir, ritonavir
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 10, 2022 · Synced Sep 25, 2026, 8:51 AM 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 7, 2022 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Genetic Predictors of Variability in the Drug-drug Interaction Between Darunavir/Ritonavir and Pravastatin

NCT00630734
View directory record Official record
Conditions
HIV Infections, Hyperlipidemia
Interventions
Pravastatin, Darunavir, Ritonavir, Washout
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 21, 2014 · Synced Sep 25, 2026, 8:51 AM 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 18, 2023 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 3 Interventional

Study of Lopinavir, Ritonavir, Tenofovir and Emtricitabine in HIV-Infected Antiretroviral Naïve Subjects

NCT00043966
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/ritonavir, Tenofovir DF, Emtricitabine
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
29
States / cities
Phoenix, Arizona • Beverly Hills, California • Fountain Valley, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2006 · Synced Sep 25, 2026, 8:51 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Covid-19 Long Haul Preventative and Health Promotion Care Clinical Trial Acceleration Program.

NCT06441955
View directory record Official record
Conditions
COVID-19, Long Haul
Interventions
Ritonavir-Boosted Nirmatrelvir (Paxlovid), Physiological Evaluation, Moderna COVID-19 Vaccine, Biopsychological, Behavioral (e.g., Psychotherapy, Lifestyle Counseling), Genetic (including gene transfer, stem cell and recombinant DNA), Multidisciplinary approach
Drug · Diagnostic Test · Biological + 3 more
Lead sponsor
Well- Konnect Healthcare Services and Research Firm
Network
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 26, 2024 · Synced Sep 25, 2026, 8:51 AM 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 9, 2013 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Interaction of Buprenorphine With HIV Medications and Tuberculosis Medications

NCT00877591
View directory record Official record
Conditions
Opioid Dependency, HIV Infections
Interventions
Fosamprenavir/Ritonavir, Darunavir/Ritonavir, Rifampin, Rifabutin, Buprenorphine
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 5, 2014 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 2 Interventional

A Study of Danoprevir Boosted With Low Dose Ritonavir in Combination With Pegasys and Copegus in Treatment-Naive Patients With Chronic Hepatitis C Virus Infection

NCT01220947
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Copegus, Danoprevir, Pegasys, Ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
421 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
25
States / cities
La Jolla, California • Sacramento, California • San Diego, California + 20 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 2 Interventional Results available

Paxlovid for Treatment of Long Covid

NCT05576662
View directory record Official record
Conditions
Post-acute Sequelae of SARS-CoV-2 Infection, Long COVID
Interventions
Nirmatrelvir, Placebo, Ritonavir
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 3, 2025 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug-Drug Interaction Between Colchicine and Ritonavir

NCT00983515
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Colchicine, Ritonavir
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
East Grand Forks, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 14, 2009 · Synced Sep 25, 2026, 8:51 AM 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 21, 2012 · Synced Sep 25, 2026, 8:51 AM EDT
Terminated Phase 4 Interventional

Pilot Assessment of Lopinavir/Ritonavir and Maraviroc

NCT00981318
View directory record Official record
Conditions
HIV Infections, Acquired Immunodeficiency Syndrome
Interventions
lopinavir/ritonavir plus maraviroc
Drug
Lead sponsor
Rodwick, Barry M., M.D.
Individual
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Safety Harbor, Florida
Source: ClinicalTrials.gov public record
Updated Jun 22, 2015 · Synced Sep 25, 2026, 8:51 AM EDT
Terminated Phase 1 Interventional

A Study of Extending Relugolix Dosing Intervals Through Addition of Itraconazole or Ritonavir in Prostate Cancer Patients

NCT05679388
View directory record Official record
Conditions
Prostate Cancer, Prostate Cancer Metastatic, Prostate Adenocarcinoma
Interventions
Relugolix Pill, Ritonavir, Itraconazole
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older · Male only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 25, 2026, 8:51 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 2, 2008 · Synced Sep 25, 2026, 8:51 AM EDT
Completed Phase 4 Interventional Results available

Boosted Lexiva With Lovaza Adjunctive Therapy in Hypertriglyceridemic, HIV-Infected Subjects

NCT01010399
View directory record Official record
Conditions
Hypertriglyceridemia, HIV Infection
Interventions
Lovaza, fosamprenavir/ritonavir
Dietary Supplement · Drug
Lead sponsor
Felizarta, Franco, M.D.
Individual
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Bakersfield, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2012 · Synced Sep 25, 2026, 8:51 AM EDT