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ClinicalTrials.gov public records Last synced Oct 15, 2026, 5:33 AM EDT

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Showing 217–240 of 451 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ritonavir (rtv) Clear all
Completed Phase 2 Interventional

A Comparison of Three Drug Combinations Containing Clarithromycin in the Treatment of Mycobacterium Avium Complex (MAC) Disease in Patients With AIDS

NCT00001058
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Indinavir sulfate, Ritonavir, Ethambutol hydrochloride, Clarithromycin, Rifabutin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
33
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

A Pilot Study of the Immunologic Reconstitution in HIV-1 Infected Children Receiving Highly Active Antiretroviral Therapy With Combination Ritonavir, Nevirapine and Stavudine

NCT00001688
View directory record Official record
Conditions
HIV Infection
Interventions
Ritonavir, Nevirapine, Stavudine
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:33 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 2, 2016 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

A Phase 2 Study to Evaluate Pharmacokinetics, Safety and Efficacy of TMC114/Ritonavir (Rtv) in Human Immunodeficiency Virus (HIV)-1 Infected Children and Adolescents

NCT00355524
View directory record Official record
Conditions
HIV-1, HIV Infections
Interventions
TMC114, Ritonavir
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
6 Years to 17 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
7
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2013 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 1 Interventional

A Study of ABT-378/Ritonavir Combination in HIV-Infected Patients Who Have Taken Protease Inhibitors

NCT00004580
View directory record Official record
Conditions
HIV Infections
Interventions
Lopinavir/Ritonavir, Nevirapine
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
10
States / cities
Beverly Hills, California • San Francisco, California • Denver, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2009 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetic Interactions Between DMPA and LPV/r Among HIV-Infected Women

NCT01296152
View directory record Official record
Conditions
HIV-1 Infection
Interventions
depo-medroxyprogesterone acetate
Drug
Lead sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Network
Eligibility
13 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
13
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Fort Lauderdale, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 4 Interventional Results available

Lopinavir/Ritonavir (Kaletra) PK in Children

NCT00810108
View directory record Official record
Conditions
HIV/AIDS Treatment, HIV Infections
Interventions
lopinavir/ritonavir (Kaletra®) tablets
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
6 Years to 17 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
San Diego, California • Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 6, 2012 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 4 Interventional

Raltegravir And Darunavir Antiretroviral in Antiretroviral Naive Patients

NCT00677300
View directory record Official record
Conditions
HIV Infections
Interventions
Raltegravir, Darunavir, Ritonavir, Tenofovir/Emtricitabine
Drug
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 8, 2014 · Synced Oct 15, 2026, 5:33 AM 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 15, 2026, 5:33 AM EDT
Completed Phase 4 Interventional

A Randomized, Prospective Study of the Efficacy, Safety and Tolerability of Two Doses of GW433908Ritonavir Given With Abacavir/Lamivudine Fixed Dose Combination

NCT00335270
View directory record Official record
Conditions
HIV
Interventions
fos-amprenavir calcium, ritonavir, abacavir/lamivudine as Epzicom
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Not applicable Interventional Results available

Metabolic Effects of Switching Kaletra to Boosted Reyataz

NCT00413153
View directory record Official record
Conditions
HIV Infections
Interventions
atazanavir/ritonavir, lopinavir/ritonavir
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 9, 2010 · Synced Oct 15, 2026, 5:33 AM EDT
Completed No phase listed Observational

A Study to Learn How Paxlovid [Nirmatrelvir-ritonavir/PF-07321332] Works in COVID-19 Patients Who Are Elderly or Have Medical Conditions.

NCT07261085
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir-ritonavir, No treatment
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
99,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate Antiviral Activity of Darunavir + Ritonavir in HIV-1 Infected Adolescents

NCT00915655
View directory record Official record
Conditions
HIV-1 Infection
Interventions
darunavir, ritonavir, zidovudine, lamivudine, abacavir
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
12 Years to 18 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 3, 2012 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 3 Interventional

A Phase IIIB Open-Label, Comparative Study to Evaluate Saquinavir Soft Gel Capsule (SGC) Treatment in Combination With Other Antiretrovirals in HIV-1 Infected Antiretroviral-Naive Patients

NCT00002178
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Nelfinavir mesylate, Saquinavir, Delavirdine mesylate
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
16 Years and older
Enrollment
375 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
2
States / cities
Los Angeles, California • Brookline, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 15, 2026, 5:33 AM 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, 5:33 AM EDT
Completed Not applicable Interventional Results available

Comparison of Liquid Kaletra and Low Dose Kaletra Tablets

NCT00762320
View directory record Official record
Conditions
HIV Infections
Interventions
Low dose Kaletra tablets
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
3 Years to 18 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 24, 2014 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Safety and Efficacy of Switching From Regimens Consisting of Boosted Atazanavir or Darunavir Plus Either Emtricitabine/Tenofovir or Abacavir/Lamivudine to Bictegravir/Emtricitabine/Tenofovir Alafenamide in Virologically Suppressed HIV-1 Infected Adults

NCT02603107
View directory record Official record
Conditions
HIV-1 Infection
Interventions
RTV, ATV, DRV, COBI, ATV/co, DRV/co, FTC/TDF, ABC/3TC, B/F/TAF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
578 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
63
States / cities
Phoenix, Arizona • Los Angeles, California • Newport Beach, California + 49 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2020 · Synced Oct 15, 2026, 5:33 AM EDT
Terminated Phase 3 Interventional Results available

Comparison of TPV/r to DRV/r in Triple Class Experienced Patient With Resistance to > 1 PI

NCT00517192
View directory record Official record
Conditions
HIV Infections
Interventions
Tipranavir, Darunavir, Ritonavir
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
9
States / cities
Beverly Hills, California • Fort Lauderdale, Florida • Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Cyclosporine A in Combination With Abacavir Sulfate, Lamivudine, and Zidovudine and Lopinavir/Ritonavir in HIV

NCT00084149
View directory record Official record
Conditions
HIV Infections
Interventions
Abacavir sulfate, Lamivudine, and Zidovudine, Lopinavir/Ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
4
States / cities
Minneapolis, Minnesota • New York, New York • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 15, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

GW640385 Plus Ritonavir And NRTIs For 48 Weeks In HIV-1 Infected Adults

NCT00257621
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus I, HIV Infection
Interventions
GW640385, Ritonavir
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
9
States / cities
Phoenix, Arizona • San Francisco, California • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 15, 2026, 5:33 AM EDT
Terminated Phase 4 Interventional Results available

Immune Reconstitution of Lopinavir/Ritonavir-Based vs Efavirenz-based HAART in Advanced HIV Disease

NCT00775606
View directory record Official record
Conditions
Acquired Immune Deficiency Syndrome
Interventions
Lopinavir 400 mg/ritonavir 100 mg, Efavirenz
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
4
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 26, 2023 · Synced Oct 15, 2026, 5:33 AM EDT
Recruiting Phase 3 Interventional

EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease

NCT05261139
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 17 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
50
States / cities
Phoenix, Arizona • Los Angeles, California • Washington D.C., District of Columbia + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Oct 15, 2026, 5:33 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, 5:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Renal Impairment Study of PF-07321332 Boosted With Ritonavir in Adult Participants With Renal Impairment and in Healthy Participants With Normal Renal Function.

NCT04909853
View directory record Official record
Conditions
Renal Impairment
Interventions
PF-07321332/ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
5
States / cities
Tustin, California • Miami, Florida • Tampa, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2023 · Synced Oct 15, 2026, 5:33 AM EDT