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Showing 1–24 of 451 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 2 Interventional

Five-Drug Anti-HIV Treatment Followed by Treatment Interruption in Patients Who Have Recently Been Infected With HIV

NCT00000940
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Abacavir sulfate, Amprenavir, Lamivudine, Stavudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2006
U.S. locations
18
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 2 Interventional

Immunologic and Virologic Consequences of Long-Term Highly Active Antiretroviral Therapy (HAART) in Subjects With Moderately Advanced HIV-1 Disease: A Follow-Up Study to ACTG 315

NCT00000891
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Saquinavir, Delavirdine mesylate, Lamivudine, Stavudine, Zidovudine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
3
States / cities
Denver, Colorado • Chicago, Illinois • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Omeprazole and Ritonavir on GSK2336805 Pharmacokinetics in Healthy Adults

NCT01458054
View directory record Official record
Conditions
Hepatitis C
Interventions
Cohort 1 (GSK2336805 60mg x 1 dose, Omeprazole 40 mg q24h x 4 days, GSK2336805 60 mg x 1 dose and Omeprazole 40 mg x 1 dose), Cohort 2 (GSK2336805 30mg x 1 dose, Ritonavir 100mg q12h x 4 days, and Ritonavir 100mg q12h x 1 dose)
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study on Possible Interactions Between Protease Inhibitors (Anti-HIV Drugs) and Drugs Which Lower the Level of Fat in Your Blood

NCT00000941
View directory record Official record
Conditions
HIV Infections
Interventions
Pravastatin sodium, Simvastatin, Atorvastatin calcium, Ritonavir, Nelfinavir mesylate, Saquinavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2002
U.S. locations
13
States / cities
Los Angeles, California • San Francisco, California • Stanford, California + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 2, 2026, 4:26 AM EDT
Approved For Marketing No phase listed Expanded access

TMC114-C226: An Early Access Program to Evaluate the Long-term Safety and Tolerability of TMC114 Combined With a Low Dose of Ritonavir (TMC114/r) With Other Antiretrovirals, for HIV-1 Infected Patients Who Have Failed Multiple Antiretroviral Regimens.

NCT00245739
View directory record Official record
Conditions
HIV Infections
Interventions
TMC-114
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
202
States / cities
Anniston, Alabama • Birmingham, Alabama • Mesa, Arizona + 199 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2014 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

CiPA Phase 1 ECG Biomarker Validation Study

NCT03070470
View directory record Official record
Conditions
Drug-induced QT Prolongation, Pharmacokinetics, Pharmacodynamics
Interventions
Ranolazine, Verapamil, Lopinavir / Ritonavir, Chloroquine, Placebo, Dofetilide and Diltiazem
Drug
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 2, 2026, 4:26 AM EDT
Recruiting Phase 3 Interventional

Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia

NCT02735707
View directory record Official record
Conditions
Community-acquired Pneumonia, Influenza, COVID-19
Interventions
Ceftriaxone, Moxifloxacin or Levofloxacin, Piperacillin-tazobactam, Ceftaroline, Amoxicillin-clavulanate, Standard course macrolide, Extended course macrolide, No systemic corticosteroid, Fixed-duration Hydrocortisone, Shock-dependent hydrocortisone, Fixed-duration higher dose Hydrocortisone, No antiviral agent for influenza, Five-days oseltamivir, Ten-days oseltamivir, No antiviral agent for COVID-19, Lopinavir / Ritonavir, Hydroxychloroquine, Hydroxychloroquine + lopinavir/ritonavir, Ivermectin, No immune modulation for COVID-19, Interferon beta-1a, Anakinra, Tocilizumab, Sarilumab, Local standard venous thromboprophylaxis, Therapeutic dose anticoagulation, Conventional low dose thromboprophylaxis, Intermediate dose thromboprophylaxis, Continuation of therapeutic dose anticoagulation, No immunoglobulin, Convalescent plasma, Delayed administration of convalescent plasma, No vitamin C, Vitamin C, No antiplatelet, Aspirin, P2Y12 inhibitor, No simvastatin, Simvastatin, Eritoran, Apremilast, Clinician-preferred mechanical ventilation strategy, Protocolised mechanical ventilation strategy, No renin-angiotensin system inhibitor, Angiotensin converting enzyme inhibitor, Angiotensin Receptor Blockers, ARB + DMX-200, No cysteamine, Cysteamine, Fixed-duration dexamethasone, Baloxavir Marboxil, Five-days oseltamivir + baloxavir marboxil, Ten-days oseltamivir + baloxavir marboxil, No endothelial modulator, Imatinib, No Immune Modulator for Influenza, Baricitinib, Nirmatrelvir/ritonavir, Remdesivir, Nirmatrelvir/ritonavir + remdesivir
Drug · Other · Biological + 1 more
Lead sponsor
UMC Utrecht
Other
Eligibility
18 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
11
States / cities
Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Raltegravir Kaletra Pharmacokinetics

NCT00564772
View directory record Official record
Conditions
Healthy
Interventions
Raltegravir, lopinavir, ritonavir
Drug
Lead sponsor
Allina Health System
Other
Eligibility
18 Years to 60 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction Study With Fosamprenavir/Ritonavir

NCT01209065
View directory record Official record
Conditions
Infections, Human Immunodeficiency Virus and Herpesviridae
Interventions
GSK1349572, Fosamprenavir, Ritonavir
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

An Interaction Study to Assess Drug Levels in Fasting Healthy Adult Subjects

NCT00802074
View directory record Official record
Conditions
Healthy
Interventions
Raltegravir, Fosamprenavir, Ritonavir
Drug
Lead sponsor
Garden State Infectious Disease Associates, PA
Other
Eligibility
18 Years to 64 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Voorhees Township, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 28, 2016 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 3 Interventional

A Study to Compare the Effects of Two Anti-HIV Drug Combinations on the Immune Systems of HIV-Infected Patients

NCT00002448
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, Efavirenz, Saquinavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
16 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
3
States / cities
Los Angeles, California • Palo Alto, California • New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Danoprevir/Ritonavir on the Pharmacokinetics of Escitalopram and S-Demethylcitalopram in Healthy Volunteers

NCT01418274
View directory record Official record
Conditions
Healthy Volunteer
Interventions
danoprevir, escitalopram, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 3 Interventional Results available

Roll-Over Protocol To Provide Atv And/Or Truvada For Extended Access

NCT01003990
View directory record Official record
Conditions
HIV
Interventions
Atazanavir, Atazanavir/Ritonavir, Tenofovir/Emtricitabine, Lopinavir/ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
16 Years and older
Enrollment
710 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2016
U.S. locations
12
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Results available

A Study of Saquinavir/Ritonavir in Liver-Impaired Patients With HIV Infection.

NCT00435929
View directory record Official record
Conditions
HIV Infections
Interventions
Ritonavir, saquinavir [Invirase]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
5
States / cities
Chicago, Illinois • Somers Point, New Jersey • Voorhees Township, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 2, 2026, 4:26 AM 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 21, 2020 · Synced Sep 2, 2026, 4:26 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Bioavailability Study of Rifabutin and Lopinavir/Ritonavir in Healthy Adult Subjects

NCT00743470
View directory record Official record
Conditions
HIV, Tuberculosis
Interventions
lopinavir/ritonavir, rifabutin
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
Waukegan, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 1, 2010 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 4 Interventional Results available

Study of Reyataz in HIV-infected Patients With Lipodystrophy Syndrome

NCT00135356
View directory record Official record
Conditions
HIV-Associated Lipodystrophy Syndrome
Interventions
Atazanavir (ATV) + ritonavir (RTV), continuation of backbone 2 nucleoside reverse transcriptase inhibitor (NRTIs), continuation of current HAART (boosted protease inhibitor [PI] combination + 2 NRTIs)
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
4
States / cities
Fort Lauderdale, Florida • Honolulu, Hawaii • Huntersville, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated May 6, 2010 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 4 Interventional

Safety Study of Lopinavir/Ritonavir With Raltegravir in HIV-infected Patients

NCT00752037
View directory record Official record
Conditions
HIV Infections
Interventions
lopinavir/ritonavir and raltegravir
Drug
Lead sponsor
Saint Michael's Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 19, 2011 · Synced Sep 2, 2026, 4:26 AM 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 28, 2021 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Apricitabine and Tipranavir When Dosed Alone or Together

NCT00352066
View directory record Official record
Conditions
HIV Infection
Interventions
apricitabine
Drug
Lead sponsor
Avexa
Industry
Eligibility
18 Years to 40 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 22, 2011 · Synced Sep 2, 2026, 4:26 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 28, 2026 · Synced Sep 2, 2026, 4:26 AM EDT
Completed No phase listed Observational

IMPAACT P1080: Psychiatric and Antiretroviral Medication Concentrations in HIV-infected and Uninfected Children and Adolescents

NCT01232361
View directory record Official record
Conditions
ADHD, HIV
Interventions
Not listed
Lead sponsor
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
Network
Eligibility
6 Years to 25 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
21
States / cities
Birmingham, Alabama • Long Beach, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 3 Interventional Results available

Enfuvirtide/Current Protease Inhibitor Switch to PREZISTA (Darunavir)/Ritonavir + TMC125 in HIV Patients With Enfuvirtide Side Effects.

NCT00460746
View directory record Official record
Conditions
HIV
Interventions
TMC125, Darunavir; Ritonavir
Drug
Lead sponsor
Tibotec, Inc
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2013 · Synced Sep 2, 2026, 4:26 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Genetics and HIV-1 Protease Inhibitors

NCT01388543
View directory record Official record
Conditions
HIV
Interventions
Atazanavir
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Sep 2, 2026, 4:26 AM EDT