Arena's Weight Loss Drug Provides Thin ResultsThis morning Arena Pharmaceuticals (
ARNA) released important phase III data on obesity drug lorcaserin. The data show the patients taking 10mg lorcaserin twice daily lost 12.7 lbs, or 5.8% of their body weight on an intent-to-treat basis over the first 12-months of the study vs. 4.7 lbs, or 2.2% of their body weight for patients taking placebo. Additionally, 47.5% of the patient taking lorcaserin lost at least 5% of their body weight compared to only 20.3% taking the placebo.These results satisfy the 2 FDA requirements for approvability, in our view. More importantly, there was no statistically significant associated risk of developing valvulopathy (heart value damage) for patients taking lorcaserin vs. placebo over the entire two year study period.Increased risk of heart value damage is what forced Wyeth (
WYE) to pull its obesity candidate, Phen-Fen, off ...
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