for people ages 18 years and up (full criteria)
at UC Davis
study started
estimated completion



The primary objective of this study is to evaluate the efficacy of fixed-dose combination (FDC) of bictegravir/emtricitabine/ tenofovir alafenamide (B/F/TAF) versus dolutegravir (DTG) + emtricitabine/tenofovir disoproxil fumarate (F/TDF) in HIV and hepatitis B virus (HBV) treatment naive, HIV-1 and HBV co-infected adults.

Official Title

A Phase 3, Randomized, Double-Blind Study to Evaluate the Safety and Efficacy of Fixed Dose Combination of Bictegravir/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Disoproxil Fumarate in Treatment Naïve, HIV-1 and Hepatitis B Co-Infected Adults


HIV-1/HBV Co-Infection Hepatitis B Coinfection Tenofovir Emtricitabine Dolutegravir Emtricitabine, Tenofovir Disoproxil Fumarate Drug Combination B/F/TAF DTG F/TDF DTG+F/TDF


For people ages 18 years and up

Key Inclusion Criteria:

  • HIV-1 co-infection:
  • Must be HIV antiretroviral treatment naive with plasma HIV-1 RNA ≥ 500 copies/mL at screening
  • ≤ 10 days of prior therapy with any antiretroviral agent, including lamivudine and entecavir, following a diagnosis of HIV-1 infection (except the use for pre-exposure prophylaxis (PrEP) or post-exposure prophylaxis (PEP), up to one month prior to screening)
  • Screening genotype report must show sensitivity to emtricitabine (FTC) and tenofovir (TFV). This report will be provided by Gilead Sciences. Alternatively, if genotype results from a local laboratory obtained ≤ 90 days prior to screening visit date show sensitivity to these drugs, this genotype will be acceptable to fulfill this inclusion criterion in the event that the genotype obtained at screening is not yet available and all other inclusion/exclusion criteria have been confirmed
  • HBV co-infection:
  • Must be HBV treatment naive (defined as < 12 weeks of oral antiviral treatment)
  • Screening HBV DNA ≥ 2000 IU/mL
  • Hepatic transaminases (aspartate aminotransferase (AST) and ALT) ≤ 10 x upper limit of normal (ULN)
  • Total bilirubin ≤ 2.5 x ULN

Key Exclusion Criteria:

  • Hepatitis C virus (HCV) antibody positive and HCV RNA detectable
  • Individuals experiencing decompensated cirrhosis (eg, ascites, encephalopathy, or variceal bleeding) or with Child-Pugh-Turcotte (CPT) C impairment
  • Current alcohol or substance use judged by the Investigator to potentially interfere with study compliance
  • Active, serious infections (other than HIV-1 and HBV infection) requiring parenteral antibiotic or antifungal therapy within 30 days prior to Day 1
  • Participation in any other clinical trial, including observational studies, without prior approval from the sponsor is prohibited while participating in this trial

Note: Other protocol defined Inclusion/Exclusion criteria may apply.


  • University of California Davis, One Community Health accepting new patients
    Sacramento California 95814 United States
  • Spectrum Medical Group accepting new patients
    Phoenix Arizona 85012 United States


accepting new patients
Start Date
Completion Date
Gilead Sciences
Phase 3
Study Type
Last Updated