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Study to Evaluate the Safety and Efficacy of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Versus Elvitegravir/Cobicistat/Emtricitabine/ Tenofovir Disoproxil Fumarate in HIV-1 Positive, Antiretroviral Treatment-Naïve Adults

This study is ongoing, but not recruiting participants.
Sponsor:
Information provided by (Responsible Party):
Gilead Sciences
ClinicalTrials.gov Identifier:
NCT01797445
First received: February 20, 2013
Last updated: June 24, 2014
Last verified: June 2014
  Purpose

The purpose of this study is to evaluate the efficacy of a single-tablet regimen (STR)containing elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) versus a STR containing elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF) in HIV-1 positive, antiretroviral treatment naïve adult participants as determined by the achievement of HIV-1 RNA < 50 copies/mL at Week 48.


Condition Intervention Phase
HIV
HIV Infections
Drug: E/C/F/TAF
Drug: E/C/F/TDF
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 3, Randomized, Double-Blind Study to Evaluate the Safety and Efficacy of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Versus Elvitegravir/Cobicistat/Emtricitabine/ Tenofovir Disoproxil Fumarate in HIV-1 Positive, Antiretroviral Treatment-Naïve Adults

Resource links provided by NLM:


Further study details as provided by Gilead Sciences:

Primary Outcome Measures:
  • The proportion of participants achieving HIV-1 RNA < 50 copies/mL [ Time Frame: Week 48 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Percent change from baseline in hip bone mineral density (BMD) [ Time Frame: Week 48 ] [ Designated as safety issue: Yes ]
  • Percent change from baseline in spine BMD [ Time Frame: Week 48 ] [ Designated as safety issue: Yes ]
  • Change from baseline in serum creatinine at Week 48 [ Time Frame: Week 48 ] [ Designated as safety issue: Yes ]
  • Incidence of treatment-emergent proteinuria through Week 48 [ Time Frame: Baseline to Week 48 ] [ Designated as safety issue: No ]
    Incidence of treatment-emergent proteinuria through Week 48 will be summarized.

  • Proportion of participants with HIV-1 RNA < 50 copies/mL at Week 96 [ Time Frame: Week 96 ] [ Designated as safety issue: No ]
  • Proportion of participants with HIV-1 RNA < 20 copies/mL [ Time Frame: Weeks 48 and 96 ] [ Designated as safety issue: No ]
  • Change from baseline in CD4+ cell count [ Time Frame: Weeks 48 and 96 ] [ Designated as safety issue: No ]
  • Percent change from baseline in hip and spine BMD at Week 96 [ Time Frame: Week 96 ] [ Designated as safety issue: Yes ]
  • Change from baseline in serum creatinine at Week 96 [ Time Frame: Week 96 ] [ Designated as safety issue: Yes ]
  • Incidence of treatment-emergent proteinuria [ Time Frame: Baseline to Week 96 ] [ Designated as safety issue: No ]
    Incidence of treatment-emergent proteinuria through Week 96 will be summarized.

  • Urine retinol binding protein (RBP) to creatinine ratio [ Time Frame: Weeks 48 and 96 ] [ Designated as safety issue: No ]
  • Urine beta-2-microglobulin to creatinine ratio [ Time Frame: Weeks 48 and 96 ] [ Designated as safety issue: No ]

Estimated Enrollment: 840
Study Start Date: February 2013
Estimated Study Completion Date: September 2015
Estimated Primary Completion Date: October 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: E/C/F/TAF
Participants will receive E/C/F/TAF for 96 weeks
Drug: E/C/F/TAF
Elvitegravir 150 mg/cobicistat 150 mg/emtricitabine 200 mg/tenofovir alafenamide 10 mg (E/C/F/TAF) single-tablet regimen administered orally once daily
Active Comparator: E/C/F/TDF
Participants will receive E/C/F/TDF for 96 weeks
Drug: E/C/F/TDF
Elvitegravir 150 mg/cobicistat 150 mg/emtricitabine 200 mg/tenofovir disoproxil fumarate (tenofovir DF; TDF) 300 mg (E/C/F/TDF) single-tablet regimen administered orally once daily
Other Name: Stribild®

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
  • Plasma HIV-1 RNA levels ≥ 1,000 copies/mL at screening
  • No prior use of any approved or investigational antiretroviral drug for any length of time, except the use for pre-exposure prophylaxis (PREP), or post-exposure prophylaxis (PEP) up to 6 months prior to screening
  • Screening genotype report must show sensitivity to elvitegravir, emtricitabine, tenofovir DF
  • Normal electrocardiogram (ECG)
  • Estimated glomerular filtration rate (eGFR) ≥ 50 mL/min according to the Cockcroft-Gault formula for creatinine clearance
  • Hepatic transaminases (AST and ALT) ≤ 5 × upper limit of normal (ULN)
  • Total bilirubin ≤ 1.5 mg/dL, or normal direct bilirubin
  • Adequate hematologic function
  • Serum amylase ≤ 5 × ULN
  • Males and females of childbearing potential must agree to utilize highly effective contraception methods or be non-heterosexually active or practice sexual abstinence from screening throughout the duration of study treatment and for 30 days following the last dose of study drug
  • Females who utilize hormonal contraceptive as one of their birth control methods must have used the same method for at least three months prior to study dosing
  • Females who have stopped menstruating for ≥ 12 months but do not have documentation of ovarian hormonal failure must have a serum follicle stimulating hormone (FSH) level at screening within the post-menopausal range based on the Central Laboratory reference range
  • Age ≥ 18 years

Exclusion Criteria:

  • A new acquired immunodeficiency syndrome (AIDS) defining condition diagnosed within the 30 days prior to screening
  • Hepatitis B surface antigen (HBsAg) positive
  • Hepatitis C antibody positive
  • Individuals experiencing decompensated cirrhosis
  • Females who are breastfeeding
  • Positive serum pregnancy test
  • Have an implanted defibrillator or pacemaker
  • Current alcohol or substance use judged by the Investigator to potentially interfere with study compliance
  • History of malignancy within the past 5 years or ongoing malignancy other than cutaneous Kaposi's sarcoma, basal cell carcinoma, or resected, noninvasive cutaneous squamous carcinoma
  • Active, serious infections (other than HIV-1 infection) requiring parenteral antibiotic or antifungal therapy within 30 days prior to baseline
  • Any other clinical condition or prior therapy that, in the opinion of the Investigator, would make the individual unsuitable for the study or unable to comply with dosing requirements
  • Participation in any other clinical trial (including observational trials) without prior approval
  • Receiving ongoing therapy with drugs not to be used with elvitegravir, cobicistat, emtricitabine, tenofovir DF, and TAF or participants with any known allergies to the excipients of E/C/F/TDF or E/C/F/TAF single-tablet regimen tablets
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01797445

  Show 125 Study Locations
Sponsors and Collaborators
Gilead Sciences
Investigators
Study Director: Huyen Cao, MD Gilead Sciences
  More Information

No publications provided

Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT01797445     History of Changes
Other Study ID Numbers: GS-US-292-0111, 2013-000102-37
Study First Received: February 20, 2013
Last Updated: June 24, 2014
Health Authority: United States: Food and Drug Administration

Keywords provided by Gilead Sciences:
HIV
Treatment Naive
HIV 1 Infected
Women
Female

Additional relevant MeSH terms:
Acquired Immunodeficiency Syndrome
HIV Infections
Immune System Diseases
Immunologic Deficiency Syndromes
Lentivirus Infections
RNA Virus Infections
Retroviridae Infections
Sexually Transmitted Diseases
Sexually Transmitted Diseases, Viral
Slow Virus Diseases
Virus Diseases
Emtricitabine
Tenofovir
Tenofovir disoproxil
Anti-HIV Agents
Anti-Infective Agents
Anti-Retroviral Agents
Antiviral Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Nucleic Acid Synthesis Inhibitors
Pharmacologic Actions
Reverse Transcriptase Inhibitors
Therapeutic Uses

ClinicalTrials.gov processed this record on November 25, 2014