Liraglutide vs Byetta The preliminary data indicate that liraglutide's activity is comparable to, or modestly better than, AMLN's Byetta. Also Liraglutide is taken once a day (vs. twice for Byetta) but i think that LAR will do better than both regarding HbA1c at 26 weeks and weight loss (also weekly dosing). Data from the trial comparing Byetta to LAR will be out in 4Q this year.