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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Protease Inhibitor Clear all
Completed Not applicable Interventional

A Six-Month Safety and Antiviral Study in HIV-1 Seropositive, AZT-Experienced Patients With CD4 Counts Less Than or Equal to 50 Cells/mm3 to Evaluate MK-639 Alone Versus Zidovudine (AZT) and 3TC Versus the Combination of MK-639 With AZT/3TC

NCT00002155
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Lamivudine, Zidovudine
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Whitehouse Station, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 1 Interventional

A Study of 141W94 in Combination With Other Anti-HIV Drugs

NCT00002372
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Amprenavir, Nelfinavir mesylate, Saquinavir
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
San Diego, California • San Francisco, California • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional

A Randomized, Double-Blind Study of MKC-442 Combined With Viracept in Patients Who Are Epivir + Retrovir Experienced and Are Protease Inhibitor- and Non-Nucleoside Reverse Transcriptase Inhibitor-Naive

NCT00002215
View directory record Official record
Conditions
HIV Infections
Interventions
Emivirine, Nelfinavir mesylate
Drug
Lead sponsor
Triangle Pharmaceuticals
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional

Depo-Medroxyprogesterone Acetate (DMPA, Depo-Provera) Use With Certain Anti-HIV Drugs in HIV-Infected Women

NCT00016601
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir, Nelfinavir mesylate, Efavirenz, Nevirapine, Medroxyprogesterone acetate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older · Female only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
31
States / cities
Birmingham, Alabama • Los Angeles, California • Denver, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2012 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional

A Study of Ritonavir/Indinavir Combination in HIV-Infected Patients

NCT00002223
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir
Drug
Lead sponsor
Abbott
Industry
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
6
States / cities
Los Angeles, California • Fort Lauderdale, Florida • Maitland, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2009 · Synced Jul 24, 2026, 2:50 AM EDT
Approved For Marketing No phase listed Expanded access

Tipranavir Expanded Access Program (EAP) in PI-experienced Patients With HIV-1 Infection

NCT00097799
View directory record Official record
Conditions
HIV Infections
Interventions
Tipranavir, Ritonavir
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
Not listed
Timeline
Started 2004
U.S. locations
115
States / cities
Anniston, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 74 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2016 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 3 Interventional

A Study of Indinavir Taken With or Without DMP 266

NCT00002393
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Efavirenz
Drug
Lead sponsor
Dupont Merck
Industry
Eligibility
13 Years to 60 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
9
States / cities
San Francisco, California • Augusta, Georgia • Chicago, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 3 Interventional

Comparing FTC and Lamivudine in HIV-Infected Patients on a Stable Anti-HIV Drug Combination

NCT00002416
View directory record Official record
Conditions
HIV Infections
Interventions
Emtricitabine, Lamivudine
Drug
Lead sponsor
Triangle Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
2
States / cities
St. Petersburg, Florida • Great Neck, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional

Study of PPI-668, BI 207127 and Faldaprevir, With and Without Ribavirin, in the Treatment of Chronic Hepatitis C

NCT01859962
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
PPI-668, BI 207127 Dose 1, BI 207127 Dose 2, Faldaprevir, Ribavirin, BI 207127 Placebo
Drug
Lead sponsor
Presidio Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 24, 2015 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional Results available

Pilot Study of a Raltegravir Based NRTI Sparing Regimen

NCT00814879
View directory record Official record
Conditions
Acquired Immune Deficiency Syndrome, AIDS, Human Immunodeficiency Virus, HIV Infections
Interventions
Raltegravir, Atazanavir, Standard treatment regimen
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
5
States / cities
New Haven, Connecticut • Waterbury, Connecticut • West Haven, Connecticut + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Jul 24, 2026, 2:50 AM EDT
Completed No phase listed Observational

A Comparison of Adherence Rates to Ritonavir and Its Accompanying Protease Inhibitor

NCT00432783
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 26, 2018 · Synced Jul 24, 2026, 2:50 AM EDT
Active, not recruiting Phase 3 Interventional

Efficacy and Safety of Alpha1-Proteinase Inhibitor (Human), Modified Process (Alpha-1 MP) in Subjects With Pulmonary Emphysema Due to Alpha1 Antitrypsin Deficiency (AATD)

NCT01983241
View directory record Official record
Conditions
Pulmonary Emphysema in Alpha-1 PI Deficiency
Interventions
Alpha-1 MP, 0.9% Sodium Chloride for Injection, USP
Biological · Other
Lead sponsor
Grifols Therapeutics LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
10
States / cities
Phoenix, Arizona • Gainesville, Florida • Leesburg, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional

Safety and Effectiveness of an Anti-HIV Drug Combination in HIV-Positive Patients Who Have Failed Previous Treatment With Protease Inhibitors

NCT00002361
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
8
States / cities
Los Angeles, California • Miami, Florida • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional

Comparison of Ro 31-8959 Plus Zidovudine (AZT) Versus AZT Plus Zalcitabine (ddC) Versus Ro 31-8959 Plus AZT Plus ddC

NCT00001040
View directory record Official record
Conditions
HIV Infections
Interventions
Saquinavir, Zidovudine, Zalcitabine
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
13 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
10
States / cities
Birmingham, Alabama • Stanford, California • Denver, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 28, 2011 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional

A Study of Two Anti-HIV Drug Combinations in HIV-Infected Patients

NCT00002400
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Delavirdine mesylate, Lamivudine, Zidovudine
Drug
Lead sponsor
Pharmacia and Upjohn
Industry
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Peapack, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional Results available

Nelfinavir in Recurrent Adenoid Cystic Cancer of the Head and Neck

NCT01065844
View directory record Official record
Conditions
Carcinoma, Adenoid Cystic, Head and Neck Neoplasms
Interventions
Nelfinavir
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional

The Addition of Indinavir to Anti-HIV Treatment in HIV-Infected Patients

NCT00000861
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years and older
Enrollment
1,900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1997
U.S. locations
14
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 3 Interventional

Atazanavir Versus Lopinavir/Ritonavir (LPV/RTV) in Patients Who Have Not Had Success With Protease Inhibitor-Containing HAART Regimen(s)

NCT00028301
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanavir, Lopinavir/Ritonavir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
16 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
38
States / cities
Birmingham, Alabama • Phoenix, Arizona • Berkeley, California + 30 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2010 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional

A Study on Amprenavir in Combination With Other Anti-HIV Drugs in HIV-Positive Patients

NCT00000912
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Abacavir sulfate, Amprenavir, Nelfinavir mesylate, Efavirenz, Levocarnitine, Adefovir dipivoxil, Saquinavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
475 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2000
U.S. locations
44
States / cities
Los Angeles, California • Menlo Park, California • San Diego, California + 27 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 2 Interventional

A Study to Compare the Safety and Effectiveness of Two Dosing Schedules of Lamivudine in Combination With Two Other Anti-HIV Drugs

NCT00002442
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Nelfinavir mesylate, Lamivudine, Stavudine
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
12
States / cities
Los Angeles, California • Palo Alto, California • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 1Phase 2 Interventional

Ritonavir and Indinavir in Children Failing Other Anti-HIV Treatment

NCT00012519
View directory record Official record
Conditions
HIV Infections
Interventions
indinavir sulfate, ritonavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 17 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
11
States / cities
Washington D.C., District of Columbia • Gainesville, Florida • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 24, 2026, 2:50 AM EDT
Recruiting Phase 3 Interventional

A Study to Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe Disease

NCT06679140
View directory record Official record
Conditions
COVID-19 SARS-CoV-2 Infection
Interventions
ibuzatrelvir, placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
2,330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
84
States / cities
Little Rock, Arkansas • Bakersfield, California • Huntington Park, California + 62 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Phase 3 Interventional

Study Switching HIV-1 Infected Patients With an Undetectable Viral Load on a First Protease Inhibitor-Based Regimen to an Efavirenz-Based Regimen

NCT00135382
View directory record Official record
Conditions
HIV Infections
Interventions
Videx EC, Epivir, Sustiva
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
46
States / cities
Little Rock, Arkansas • Beverly Hills, California • Fountain Valley, California + 43 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2010 · Synced Jul 24, 2026, 2:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Drug Interactions of Amprenavir and Efavirenz, in Combination With a Second Protease Inhibitor, in HIV-Negative Volunteers

NCT00005762
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Ritonavir, Amprenavir, Nelfinavir mesylate, Efavirenz, Saquinavir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2004
U.S. locations
8
States / cities
Palo Alto, California • Aurora, Colorado • Honolulu, Hawaii + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 24, 2026, 2:50 AM EDT