Table 3.
Prespecified Primary and Secondary Outcome Measures at 48 Weeks After Antiretroviral Therapy Initiation (n = 29a)
| Outcome | No. of Participants |
| Primary outcome | |
| Death | 0 |
| New WHO stage 3 or 4 event | 0 |
| Virologic failure: FDA Snapshot | |
| HIV-2 plasma viral load | |
| >50 copies/mL | 1b |
| >400 copies/mL | 0 |
| Secondary outcome | |
| Grade 3 or 4 adverse events | |
| Clinical | 1 |
| Laboratory | 7 |
| CD4 T-cell count less than baseline | 0 |
| CD4 T-cell increase <50/μL from baseline | 2 |
| Switching off E/C/F/TDF | 0 |
| HIV-2 drug resistance mutations | 1b RT = K65R IN = G140S, Q148R |
Abbreviations: E/C/F/TDF, elvitegravir, cobicistat, emtricitabine, and tenofovir disoproxil fumarate; FDA, US Food and Drug Administration; HIV-2, human immunodeficiency virus type 2; IN, integrase; RT, reverse transcriptase; WHO, World Health Organization.
aOne participant of the 30 enrolled was lost to follow-up/self-withdrew at week 4.
bAt virologic failure (week 36), the HIV-2 viral load was 236 copies/mL; data available for integrase only (no drug resistance mutation [DRM] detected); at 48 weeks the same study participant had a HIV-2 viral load = 214 copies/mL and DRM: K65R + G140S/Q148R.