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ClinicalTrials.gov public records Last synced Oct 3, 2026, 1:02 PM EDT

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Showing 25–48 of 65 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Efavirenz 600 mg Clear all
Completed Phase 4 Interventional Results available

Evaluating the Response to Two Antiretroviral Medication Regimens in HIV-Infected Pregnant Women, Who Begin Antiretroviral Therapy Between 20 and 36 Weeks of Pregnancy, for the Prevention of Mother-to-Child Transmission

NCT01618305
View directory record Official record
Conditions
HIV Infections
Interventions
Lamivudine/zidovudine, Efavirenz, Raltegravir
Drug
Lead sponsor
Westat
Other
Eligibility
16 Years and older · Female only
Enrollment
408 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
4
States / cities
Fort Lauderdale, Florida • New Orleans, Louisiana • Memphis, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2020 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional Results available

Efavirenz or Atazanavir/Ritonavir Given With Emtricitabine/Tenofovir Disoproxil Fumarate or Abacavir/Lamivudine in HIV Infected Treatment-Naive Adults

NCT00118898
View directory record Official record
Conditions
HIV Infections
Interventions
Abacavir/Lamivudine, Atazanavir, Efavirenz, Emtricitabine/Tenofovir disoproxil fumarate, Ritonavir, Abacavir/Lamivudine placebo, Emtricitabine/Tenofovir disoproxil fumarate placebo
Drug
Lead sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Network
Eligibility
16 Years and older
Enrollment
1,864 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
51
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 30 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2018 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional Results available

Evaluating the Efficacy and Safety of Dolutegravir-Containing Versus Efavirenz-Containing Antiretroviral Therapy Regimens in HIV-1-Infected Pregnant Women and Their Infants

NCT03048422
View directory record Official record
Conditions
HIV Infections
Interventions
Dolutegravir, Emtricitabine/tenofovir alafenamide, Emtricitabine/tenofovir disoproxil fumarate, Efavirenz/emtricitabine/tenofovir disoproxil fumarate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older · Female only
Enrollment
643 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Jacksonville, Florida • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

LAAM-HAART PET Imaging

NCT01935830
View directory record Official record
Conditions
Healthy Volunteers
Interventions
[11c] LAAM, Ritonavir, Efavirenz
Radiation · Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 13, 2017 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 2 Interventional Results available

Elvucitabine/Efavirenz/Tenofovir Versus Lamivudine/Efavirenz/Tenofovir in Human Immunodeficiency Virus (HIV)-1 Infected, Treatment-naive Participants

NCT00350272
View directory record Official record
Conditions
HIV Infections
Interventions
Elvucitabine, Lamivudine, Tenofovir, Efavirenz
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
25
States / cities
Little Rock, Arkansas • Long Beach, California • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Oct 3, 2026, 1:02 PM EDT
Terminated Phase 4 Interventional Results available

Switching From Efavirenz to Atazanavir/ Ritonavir in HIV-infected Subjects With Good Virologic Suppression

NCT01194856
View directory record Official record
Conditions
HIV Infection, Mitochondrial Dysfunction
Interventions
Atazanavir/ritonavir, Efavirenz
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 11, 2017 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose Finding Confirmation of Atazanavir With Ritonavir and Efavirenz (ATV/RTV + EFV) in Healthy Subjects

NCT00357188
View directory record Official record
Conditions
HIV Infections, Protease Inhibitor
Interventions
Atazanavir Sulphate + Ritonavir, Atazanavir Sulphate + Ritonavir + Efavirenz
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Hamilton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 8, 2011 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional

A Pilot Study of Atazanavir/Ritonavir/Efavirenz as a Nucleoside Sparing Regimen

NCT00135343
View directory record Official record
Conditions
HIV Infections
Interventions
Atazanvir/ritonavir + efavirenz
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
15
States / cities
San Francisco, California • Washington D.C., District of Columbia • Atlantis, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Safety and Efficacy of a Single Tablet Regimen of Emtricitabine/Rilpivirine/Tenofovir Disoproxil Fumarate Compared With a Single Tablet Regimen of Efavirenz/Emtricitabine/Tenofovir Disoproxil Fumarate in HIV-1 Infected, Antiretroviral Treatment-Naive Adults

NCT01309243
View directory record Official record
Conditions
HIV-1 Infection
Interventions
FTC/RPV/TDF, EFV/FTC/TDF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
799 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
83
States / cities
Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 59 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2015 · Synced Oct 3, 2026, 1:02 PM EDT
Not listed Not applicable Interventional

Maraviroc (CCR5) Antagonism to Decrease the Incidence of the Immune Reconstitution Inflammatory Syndrome in HIV-Infected Patients

NCT00988780
View directory record Official record
Conditions
Immune Reconstitution Inflammatory Syndrome, HIV, HIV Infections
Interventions
maraviroc, Placebo
Drug
Lead sponsor
Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
Other
Eligibility
18 Years and older
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
4
States / cities
Bethesda, Maryland • Cleveland, Ohio • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 27, 2012 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

GSK1349572 Drug Interaction Study With Efavirenz

NCT01098526
View directory record Official record
Conditions
Infections, Human Immunodeficiency Virus and Herpesviridae
Interventions
GSK1349572, Efavirenz
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 2 Interventional Results available

High Dose Vitamin D and Calcium for Bone Health in Individuals Initiating HAART

NCT01403051
View directory record Official record
Conditions
HIV-1 Infection
Interventions
EFV/FTC/TDF, Calcium Carbonate, Vitamin D3, Placebo for calcium carbonate, Placebo for vitamin D3
Drug
Lead sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Network
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
38
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 27 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2018 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional

Effects of Anti-HIV Drugs on the Hepatitis C Virus (HCV) in Adults Infected With Both HCV and HIV

NCT00545558
View directory record Official record
Conditions
Hepatitis C, HIV Infections
Interventions
Efavirenz, Emtricitabine/Tenofovir disoproxil fumarate
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
2
States / cities
Cincinnati, Ohio • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 12, 2014 · Synced Oct 3, 2026, 1:02 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 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Interaction Study of Efavirenz and American Ginseng in Healthy Volunteers

NCT01136928
View directory record Official record
Conditions
Healthy Volunteers
Interventions
American ginseng
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 15, 2018 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate Switching From a Regimen Consisting of Efavirenz/Emtricitabine/Tenofovir Disoproxil Fumarate (EFV/FTC/TDF) Fixed Dose Combination (FDC) to Emtricitabine/Rilpivirine/Tenofovir Alafenamide (FTC/RPV/TAF) FDC in Virologically-Suppressed, HIV-1 Infected Adults

NCT02345226
View directory record Official record
Conditions
HIV-1 Infection
Interventions
FTC/RPV/TAF, EFV/FTC/TDF Placebo, EFV/FTC/TDF, FTC/RPV/TAF Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
881 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
79
States / cities
Phoenix, Arizona • Beverly Hills, California • Long Beach, California + 57 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 2 Interventional Results available

Effects of Maraviroc (MVC) on HIV-related Kaposi's Sarcoma (KS)

NCT01276236
View directory record Official record
Conditions
Kaposi's Sarcoma
Interventions
Maraviroc
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 5, 2021 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of the Effect of a Moderate CYP3A Inducer Efavirenz on Quizartinib Pharmacokinetics in Healthy Participants

NCT04459598
View directory record Official record
Conditions
Healthy Subjects, Drug-drug Interaction, Pharmacokinetics, Quizartinib
Interventions
Efavirenz, Quizartinib
Drug
Lead sponsor
Daiichi Sankyo Co., Ltd.
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Drug-Drug Interaction Study Between Fenofibric Acid and Efavirenz

NCT01472380
View directory record Official record
Conditions
Healthy
Interventions
efavirenz, fenofibric acid 105 mg
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 1, 2012 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 2 Interventional Results available

A Study of TMC278 in Human Immunodeficiency Virus Type 1 Infected Patients, Who Are Not Treated With Antiretroviral Medicines

NCT00110305
View directory record Official record
Conditions
Human Immunodeficiency Virus Type 1
Interventions
TMC278 25 mg, TMC278 75 mg, TMC278 150 mg, Efavirenz, Non-nucleoside reverse transcriptase inhibitor (NRTIs)
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
18 Years and older
Enrollment
368 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
9
States / cities
Beverly Hills, California • Washington D.C., District of Columbia • Orlando, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2014 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 4 Interventional Results available

FOTO: Five Consecutive Days on Treatment With Efavirenz, Tenofovir, and Emtricitabine Followed by Two Days Off Treatment Versus Continuous Treatment

NCT00414635
View directory record Official record
Conditions
HIV Infections
Interventions
Intermitent Dosing
Drug
Lead sponsor
Community Research Initiative of New England
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Miami, Florida • Orlando, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 3 Interventional Results available

Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected Subjects

NCT00112047
View directory record Official record
Conditions
HIV Infections
Interventions
Emtricitabine (FTC), Tenofovir Disoproxil Fumarate (TDF), Efavirenz (EFV), FTC/TDF, FTC/TDF/EFV, Lamivudine/zidovudine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
517 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
5
States / cities
Beverly Hills, California • Washington D.C., District of Columbia • Orlando, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2010 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-label DDI Study of Omaveloxolone in Healthy Subjects

NCT05909644
View directory record Official record
Conditions
Healthy Adult Subjects
Interventions
Omaveloxolone, Efavirenz
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Oct 3, 2026, 1:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Cellular Pharmacology of Tenofovir and Emtricitabine According to HIV Infection Status

NCT01040091
View directory record Official record
Conditions
HIV Infections
Interventions
Emtricitabine (FTC), Tenofovir disoproxil fumarate (TDF), Efavirenz (EFV), Truvada
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 16, 2016 · Synced Oct 3, 2026, 1:02 PM EDT