Efficacy and Safety of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Single-Tablet Regimen in HIV-1/Hepatitis B Co-infected Adults

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Gilead Sciences
ClinicalTrials.gov Identifier:
First received: February 21, 2014
Last updated: October 23, 2015
Last verified: October 2015

This study will assess the efficacy, safety, and tolerability of a single table regimen (STR) containing elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) in human immunodeficiency virus (HIV)/hepatitis B virus (HBV) co-infected adults through 48 weeks.

Participants will be enrolled into two cohorts:

  • Cohort 1: HIV treatment-naive and HBV treatment-naive
  • Cohort 2: HIV-suppressed

Condition Intervention Phase
Drug: E/C/F/TAF
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase 3b Open-label Study of the Efficacy and Safety of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Single-Tablet Regimen in HIV-1/Hepatitis B Co-infected Adults

Resource links provided by NLM:

Further study details as provided by Gilead Sciences:

Primary Outcome Measures:
  • Percentage of participants with plasma HBV DNA levels < 29 copies/mL [ Time Frame: Week 24 ] [ Designated as safety issue: No ]
  • Percentage of participants with plasma HIV-1 RNA level < 50 copies/mL per the FDA snapshot definition [ Time Frame: Week 24 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Percentage of participants with plasma HBV DNA levels < 29 copies/mL [ Time Frame: Week 48 ] [ Designated as safety issue: No ]
  • Percentage of participants with plasma HIV-1 RNA level < 50 copies/mL per FDA snapshot definition [ Time Frame: Week 48 ] [ Designated as safety issue: No ]
  • Percentage of participants with normalized alanine aminotransferase (ALT) [ Time Frame: Weeks 24 and 48 ] [ Designated as safety issue: No ]
  • Percentage of participants with seroconversion [ Time Frame: Weeks 24 and 48 ] [ Designated as safety issue: No ]
  • Change in FibroTest® score [ Time Frame: Baseline to Weeks 24 and 48 ] [ Designated as safety issue: No ]

Enrollment: 77
Study Start Date: March 2014
Estimated Study Completion Date: June 2016
Primary Completion Date: January 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: HIV treatment-naive and HBV treatment-naive
HIV treatment-naive and HBV treatment-naive participants will receive E/C/F/TAF for 48 weeks.
Drug: E/C/F/TAF
Elvitegravir 150 mg/cobicistat 150 mg/emtricitabine 200 mg/tenofovir alafenamide 10 mg (E/C/F/TAF) STR administered orally once daily with food
Experimental: HIV-suppressed
HIV/HBV co-infected participants who are HIV-suppressed will receive E/C/F/TAF for 48 weeks.
Drug: E/C/F/TAF
Elvitegravir 150 mg/cobicistat 150 mg/emtricitabine 200 mg/tenofovir alafenamide 10 mg (E/C/F/TAF) STR administered orally once daily with food


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

Inclusion Criteria:

  • Both Cohorts 1 and 2:

    • The ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
    • HIV/HBV co-infected adult males and non-pregnant and non-lactating females
    • No evidence of hepatocellular carcinoma (HCC) or clinical or imaging evidence of cirrhosis (ascites, variceal bleeding, encephalopathy).

      --- Subjects should have documentation of an abdominal ultrasound in the 12 months prior to screening, or an abdominal ultrasound at screening, demonstrating the absence of cirrhosis and HCC.

    • Acute Hepatitis A virus (HAV) immunoglobulin M (IgM) negative
    • Hepatitis C virus (HCV) Ab negative, or HCV Ab positive with negative HCV RNA
    • Hepatitis D virus (HDV) Ab negative, or HDV Ab positive with negative HDV RNA
    • Estimated glomerular filtration rate (eGFR) ≥ 50 mL/min according to the Cockcroft-Gault formula
    • CD4+ count of > 200 cells/μL
    • Chronic HBV infection as defined by

      • HBsAg positive for ≥ 6 months Or
      • HBsAg positive at screening and either hepatitis B e antigen (HBeAg) or HBV DNA positive ≥ 6 months Or
      • At screening: positive total hepatitis B core antibody (HBcAb) and negative immunoglobulin M antibody to hepatitis B core antigen (HBcIgM) antibody, and

        • HBsAg positive, or
        • HBeAg positive, or
        • HBV DNA positive
  • Cohort 1 (HIV and HBV treatment naive) only:

    • No current or prior anti-HIV treatment, including antiretroviral medications received for prevention (PrEP), or post exposure prophylaxis (PEP)
    • No current or prior anti-HBV treatment
    • Plasma HIV-1 RNA level ≥ 500 copies/mL at screening
    • Screening HBV DNA ≥ 3 log10 IU/mL and < 9 log10 IU/mL
  • Cohort 2 (HIV suppressed) only:

    • Receiving current antiretroviral regimen for at least 4 consecutive months
    • No current or prior regimen containing 3 active anti-HBV agents (i.e. cannot be on tenofovir alafenamide (TDF)/emtricitabine (FTC)/Entecavir or TDF/lamivudine(3TC)/Entecavir)
    • Maintained plasma HIV-1 RNA < 50 copies/mL for 6 consecutive months prior to and at the time of the screening visit. Unconfirmed virologic evaluation of ≥ 50 copies/mL after previously reaching viral suppression (transient detectable viremia, or "blip") and prior to screening is acceptable
    • Documented positive HIV antibody test
    • Screening HBV DNA < 9 log10 IU/mL

Exclusion Criteria:

  • Females who are breastfeeding
  • Positive serum pregnancy test (female of childbearing potential)
  • Have an implanted defibrillator or pacemaker
  • Current alcohol or substance use
  • A history of malignancy within the past 5 years (prior to screening) or ongoing malignancy other than cutaneous Kaposi's sarcoma (KS), basal cell carcinoma, or resected, non-invasive carcinoma.
  • Received solid organ or bone marrow transplant
  • Any history of, or current evidence of, clinical hepatic decompensation (e.g., ascites, encephalopathy or variceal hemorrhage).
  • Significant bone disease (e.g., osteomalacia, chronic osteomyelitis, osteogenesis imperfecta, osteochondroses), or multiple bone fractures
  • Active, serious infections (other than HIV-1 infection) requiring parenteral antibiotic or antifungal therapy within 30 days prior to Day 1
  • Subjects on hemodialysis, other forms of renal replacement therapy, or on treatment for underlying kidney diseases (including prednisolone, and dexamethasone)
  • Any other clinical condition or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for the study or unable to comply with the dosing requirements
  • Investigational agents (unless approved by Gilead Sciences). Participation in any other clinical trial without prior approval from the sponsor is prohibited while participating in this trial
  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: NCT02071082

  Hide Study Locations
United States, Arizona
Spectrum Medical Group
Phoenix, Arizona, United States, 85012
United States, California
AHF Research Center
Beverly Hills, California, United States, 90211
Southern California Permanente Medical Group
Los Angeles, California, United States, 90027
Peter J. Ruane MD, Inc.
Los Angeles, California, United States, 90036
Anthony Mills MD, Inc
Los Angeles, California, United States, 90069
United States, District of Columbia
Whitman Walker Health
Washington, District of Columbia, United States, 20009
GWU Medical Faculty Associates
Washington DC, District of Columbia, United States, 20037
United States, Florida
Barry M. Rodwick MD
Clearwater, Florida, United States, 33765
Gary J Richmond M.D.,P.A.
Fort Lauderdale, Florida, United States, 33316
Midway Immunology and Research Center
Fort Pierce, Florida, United States, 34982
University of Miami
Miami, Florida, United States, 33136
AHF-Kinder Medical Group
Miami, Florida, United States, 33133
AIDS Health Foundation/WPA
Miami Beach, Florida, United States, 33139
Orlando Immunology Center
Orlando, Florida, United States, 32803
SJH Comprehensive Research Institute
Tampa, Florida, United States, 33614
AIDS Research and Treatment Center of the Treasure Coast
Vero Beach, Florida, United States, 32960
Triple O Research Institute PA
West Palm Beach, Florida, United States, 33401
United States, Georgia
Emory University
Atlanta, Georgia, United States, 30308
AIDS Research Consortium of Atlanta
Atlanta, Georgia, United States, 30312
Mercer University
Macon, Georgia, United States, 31210
United States, Illinois
Northwestern University
Chicago, Illinois, United States, 60611
Howard Brown Health Center
Chicago, Illinois, United States, 60613
United States, Michigan
Be Well Medical Center PC
Berkley, Michigan, United States, 48072
Henry Ford Health System
Detroit, Michigan, United States, 48202
United States, Missouri
KC Care Clinic
Kansas City, Missouri, United States, 64111
Southampton Healthcare, Inc.
St. Louis, Missouri, United States, 63139
United States, New Mexico
Southwest CARE Center
Santa Fe, New Mexico, United States, 87505
United States, New York
Albany Medical Center
Albany, New York, United States, 12208
United States, North Carolina
Rosedale Infectious Diseases
Huntersville, North Carolina, United States, 28078
United States, Texas
Central Texas Clinical Research
Austin, Texas, United States, 78705
St. Hope Foundation, Inc.
Bellaire, Texas, United States, 77401
North Texas Infectious Diseases Consultants
Dallas, Texas, United States, 75246
Garcias' Family Health Group
Harlingen, Texas, United States, 78550
TheUniversity of Texas Health Science Center Houston
Houston, Texas, United States, 77030
Gordon E. Crofoot MD PA
Houston, Texas, United States, 77098
Cure C Consortium
Houston, Texas, United States, 77004
United States, Washington
Peter Shalit MD
Seattle, Washington, United States, 98104
Canada, Ontario
Ottawa Hospital Research Institute
Ottawa, Ontario, Canada, K1H8L6
University Health Network/Toronto General Hospital
Toronto, Ontario, Canada, M5G 2N2
Maple Leaf Research/Maple Leaf Medical Clinic
Toronto, Ontario, Canada, M5G1K2
Canada, Quebec
Research Institute of the MUHC-Montreal Chest Institute
Montreal, Quebec, Canada, H2X2P4
Sponsors and Collaborators
Gilead Sciences
Study Director: Moupali Das, MD, MPH Gilead Sciences
  More Information

No publications provided

Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT02071082     History of Changes
Other Study ID Numbers: GS-US-292-1249 
Study First Received: February 21, 2014
Last Updated: October 23, 2015
Health Authority: United States: Food and Drug Administration
Canada: Health Canada
Japan: Pharmaceuticals and Medical Devices Agency

Keywords provided by Gilead Sciences:

Additional relevant MeSH terms:
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 February 04, 2016