2484. Patient Reported Outcomes After Switching to a 2-Drug Regimen of Dolutegravir + Rilpivirine: Week 148 Results from the Sword-1 and Sword-2 Studies

Abstract

Abstract Background The SWORD-1 and SWORD-2 studies previously demonstrated that high rates of virologic suppression were maintained for 148 weeks after switching virologically suppressed HIV-1 infected adults from their current 3- or 4-drug antiretroviral regimen (CAR) to the 2-drug regimen (2DR) of dolutegravir + rilpivirine on Day 1 (Early Switch (ES) DTG+RPV group). This abstract reports the pooled SWORD-1/2 results of patient reported outcomes (PRO) measures through Week 148. Methods HIV Treatment Satisfaction Questionnaire (HIVTSQ) and Symptom Distress Module (SDM) were secondary PRO endpoints in the SWORD trials. For HIVTSQ, high scores represent greater treatment satisfaction (range 0 to 60). SDM was assessed using the Symptom Bother Score with low values indicating less symptom bother (range 0 to 80). The EQ-5D-5L measure of general health status was assessed as an exploratory endpoint with maximum utility score of 1 to indicate perfect health. Change from Baseline in these endpoints was calculated for the ES subjects (over 148 weeks). Subjects randomized to CAR switched to DTG+RPV at Week 52 (Late Switch (LS) DTG+RPV group) and change from LS Baseline (i.e., last pre-switch assessment) was calculated (over 96 weeks). Results Low Symptom Bother (9.6 and 10.3) and high TSQ scores (54.4 and 54.3) were reported pre-switch in the ES and LS groups, respectively. ES subjects reported modest improvements from Baseline in both symptom burden and overall treatment satisfaction in all visits through Week 148 (Figures 1 and 2). Among the LS group, there was little change in symptom burden but similar improvement in treatment satisfaction. Pre-switch health status was high in ES and LS groups (EQ-5D mean utility: 0.96 and 0.94, respectively) and remained stable in both groups at all time points. Conclusion High treatment satisfaction and low symptom burden that were observed in patients under CAR were maintained long term after switching to DTG+RPV. These results corroborate DTG+RPV as a well-tolerated 2DR alternative treatment option in patients currently suppressed on other 3/4-drug regimens without previous virologic failure. Disclosures All authors: No reported disclosures.