Mullins Molecular Retrovirology Lab

  • Department of Microbiology
  • School of Medicine
  • University of Washington
University of Washington/Fred Hutch Center for AIDS Research

Citation Information

Smith RA, Wu VH, Zavala CG, Raugi DN, Ba S, Seydi M, Gottlieb GS, University of Washington-Dakar HIV-2 Study Group (2018). In Vitro Antiviral Activity of Cabotegravir against HIV-2. Antimicrobial agents and chemotherapy (ePub ahead of print). (pubmed) (doi)


We examined the antiviral activity of the integrase inhibitor (INI) cabotegravir against HIV-2 isolates from INI-naive individuals. HIV-2 was sensitive to cabotegravir in single-cycle and spreading-infection assays, with 50% effective concentrations (EC50s) in the low to subnanomolar range; comparable results were obtained for HIV-1 in both assay formats. Our findings suggest that cabotegravir should be evaluated in clinical trials as a potential option for antiretroviral therapy and preexposure prophylaxis in HIV-2-prevalent settings.