In the intent-to-treat population (n=704), mean baseline MIDAS total score was 22.5 (severe disability), HIT-6 total score was 64.1 (severe impact), and the MSQ domains of role function-restrictive, role function-preventative, and emotional function were 47.6, 62.2, and 59.0, respectively (higher MSQ scores indicate better health-related quality of life [QoL]).
With Symbravo, MIDAS scores improved (change from baseline [mean±SD]): -4.5±20.3, -4.1±19.5, -4.5±22.2, and -0.7±27.9, at 3, 6, 9, and 12 months, respectively. HIT-6 scores improved: -1.4±5.3, -1.5±5.6, -1.8±5.7, -2.8±6.5, and -2.9±8.1, at 1, 3, 6, 9, and 12 months, respectively. MSQ domain scores improved: role function-restrictive, 4.9±18.5, 6.0±18.8, 8.3±20.5, 9.6±20.1, and 10.7±24.0 at 1, 3, 6, 9, and 12 months, respectively; role function-preventive, 3.4±20.0, 5.9±20.4, 7.1±20.4, 9.2±20.8, and 9.9±22.6 at 1, 3, 6, 9, and 12 months, respectively; and emotional function, 4.7±20.9, 5.9±22.1, 5.9±22.5, 7.9±23.6, and 6.6±25.7 at 1, 3, 6, 9, and 12 months, respectively.
Symbravo was well-tolerated, with no new safety signals. The most common AEs were nausea (5.7%), vomiting (4.7%), dizziness (3.1%), somnolence (2.8%), diarrhea (2.3%), and upper respiratory tract infection (2%).