This page contains details about ViiV Healthcare clinical trials. Approved prescribing information must continue to guide appropriate use of ViiV Healthcare medicines. This information may vary from country to country. Before prescribing any product mentioned in this section, Healthcare Professionals should consult prescribing information approved in their country.


This study will compare safety, efficacy, and tolerability of a two drug regimen of dolutegravir (DTG) plus (+) lamivudine (3TC) administered once daily with DTG plus two nucleoside reverse transcriptase inhibitors (Tenofovir [TDF]/Emtricitabine [FTC] fixed dose combination [FDC]) administered once daily in human immunodeficiency virus (HIV) 1 infected adult subjects that have not previously received antiretroviral therapy. The study is designed to demonstrate the non-inferior antiviral activity of DTG plus 3TC regimen to that of DTG plus TDF/FTC FDC and will characterise the long term antiviral activity, tolerability and safety of DTG plus 3TC through Week 148. Approximately, 700 subjects will be randomised 1:1 to receive DTG + 3TC or DTG + TDF/FTC FDC. Subjects will be stratified by screening HIV 1 ribonucleotide nucleic acid (RNA) levels and by screening CD4+ (cluster of differentiation 4) cell count.

Discover more about the GEMINI-1 study and access relevant reference information on the ViiV clinical study register

NP-GBL-HVX-WCNT-220013 April 2022