Wang, RuolanWright, JonathanSaggu, ParminderAit-Khaled, MounirMoodley, RiyaParry, Chris M.Lutz, ThomasPodzamczer Palter, DanielMoore, RichardGórgolas Hernández-Mora, MiguelKinder, CliffordWynne, BrianWyk, Jean vanUnderwood, Mark2023-07-142023-07-142023-06-111999-4915https://hdl.handle.net/2445/200633The TANGO study (ClinicalTrials.gov, NCT03446573) demonstrated that switching to dolutegravir/lamivudine (DTG/3TC) was non-inferior to continuing tenofovir alafenamide-based regimens (TBR) through week 144. Retrospective baseline proviral DNA genotypes were performed for 734 participants (post-hoc analysis) to assess the impact of archived, pre-existing drug resistance on 144-week virologic outcomes by last on-treatment viral load (VL) and Snapshot. A total of 320 (86%) participants on DTG/3TC and 318 (85%) on TBR had both proviral genotype data and & GE;1 on-treatment post-baseline VL results and were defined as the proviral DNA resistance analysis population. Archived International AIDS Society-USA major nucleoside reverse transcriptase inhibitor, non-nucleoside reverse transcriptase inhibitor, protease inhibitor, and integrase strand transfer inhibitor resistance-associated mutations (RAMs) were observed in 42 (7%), 90 (14%), 42 (7%), and 11 (2%) participants, respectively, across both groups; 469 (74%) had no major RAMs at baseline. M184V/I (1%), K65N/R (<1%), and thymidine analogue mutations (2%) were infrequent. Through week 144, >99% of participants on DTG/3TC and 99% on TBR were virologically suppressed (last on-treatment VL <50 copies/mL) regardless of the presence of major RAMs. Results from the sensitivity analysis by Snapshot were consistent with the last available on-treatment VL. In TANGO, archived, pre-existing major RAMs did not impact virologic outcomes through week 144.9 p.application/pdfengcc by (c) Wang, Ruolan et al, 2023http://creativecommons.org/licenses/by/3.0/es/Persones seropositivesAntiretroviralsHIV-positive personsAntiretroviral agentsinfo:eu-repo/semantics/article2023-07-13info:eu-repo/semantics/openAccess37376649