LAUSR

Weight gain associated with integrase inhibitor-based treatment has become a critical issue in the clinical management of HIV infection. We analyzed changes in weight and body fat mass in 54 virologically suppressed patients who switched to lamivudine plus raltegravir or dolutegravir. Overall, after 12 months we reported a not significant increase in weight (median, +1.74 Kg; p=0.223) and total fat mass (median, +1.13 Kg; p=0.188), and these changes were comparable between groups. The median change in lumbar spine bone mineral density (BMD) (IQR) was +0.02 g/cm2 (-0.02, +0.05; p=0.786), and the median change in femur neck BMD (IQR) was +0.04 g/cm2 (-0.03, +0.06; p=0.598), and changes were comparable between groups. In conclusion, the switch to dolutegravir/lamivudine or raltegravir/lamivudine dual therapy in virologically suppressed patients did not produce significant increases in weight and body fat mass after a 12-month follow-up, in association with not significant changes in BMD.