MAVMET trial: maraviroc and/or metformin for metabolic dysfunction associated fatty liver disease in adults with suppressed HIV.
McCabe L., Burns JE., Latifoltojar A., Post FA., Fox J., Pool E., Waters A., Santana B., Garvey L., Johnson M., McGuinness I., Chouhan M., Edwards J., Goodman AL., Cooke G., Murphy C., Collaco-Moraes Y., Webb H., Gregory A., Mohamed F., Rauchenberger M., Ryder SD., Sandford C., Baker JV., Angus B., Boesecke C., Orkin C., Punwani S., Clark A., Gilson R., Dunn D., Pett SL., the MAVMET Study group .
ObjectiveMetabolic dysfunction associated fatty liver disease (MAFLD) is over-represented in people with HIV (PWH). Maraviroc (MVC) and/or metformin (MET) may reduce MAFLD by influencing inflammatory pathways and fatty acid metabolism.DesignOpen-label, 48-week randomized trial with a 2 x 2 factorial design.SettingMulticenter HIV clinics.ParticipantsNondiabetic, virologically suppressed PLWH, aged at least 35 years, with confirmed/suspected MAFLD (≥1 biochemical/anthropometric/radiological/histological features).InterventionAdjunctive MVC; MET; MVC+MET vs. antiretroviral therapy (ART) alone.Primary outcomeChange in liver fat fraction (LFF) between baseline and week-48 using magnetic resonance proton density fat fraction (MR PDFF).ResultsSix sites enrolled 90 participants (93% male; 81% white; median age 52 [interquartile range, IQR 47-57] years) between March 19, 2018, and November 11, 2019. Seventy percent had imaging/biopsy and at least one 1 MAFLD criteria. The analysis included 82/90 with week-0 and week-48 scans. Median baseline MR PDFF was 8.9 (4.6-17.1); 40, 38, 8, and 14% had grade zero, one, two, and three steatosis, respectively. Mean LFF increased slightly between baseline and follow-up scans: 2.22% MVC, 1.26% MET, 0.81% MVC+MET, and 1.39% ART alone. Prolonged intervention exposure (delayed week-48 scans) exhibited greater increases in MR PDFF (estimated difference 4.23% [95% confidence interval, 95% CI 2.97-5.48], P < 0.001). There were no differences in predicted change for any intervention compared to ART alone: MVC (-0.42% [95% CI -1.53 to 0.68, P = 0.45]), MET (-0.62 [-1.81 to 0.56, P = 0.30]), and MVC+MET (-1.04 [-2.74 to 0.65, P = 0.23]). Steatosis grade remained unchanged in 55% and increased in 24%.ConclusionBaseline levels of liver fat were lower than predicted. Contrary to our hypothesis, neither MVC, MET, or the combination significantly reduced liver fat as measured by MRPDFF compared to ART alone.