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Arena Lays Off 31% of Its Staff Following Obesity Trial Failure

Arena Pharmaceuticals is to lay off 31 percent, or 130 employees, before June 22, the company told the SEC. Arena staffers -- whose future is dependent on an anti-obesity drug, lorcaserin -- may be forgiven for wondering how it has all gone wrong so quickly. In February, Arena CEO Jack Lief said:

We will be announcing very important results of a very important study ... We have expressed confidence that the results will be positive.
But in March it emerged that the results of the study were mixed at best -- some users lost weight on locaserin, but not enough to satisfy the FDA.

And now the vultures are gathering. The stock was punished; 46 percent of its value is gone. Its competitor, Vivus, is further ahead in this game. Amylin has an anti-obesity compound up its sleeve, too. And Iguana Bio mocked how Arena referred to the layoffs as "Disposal activities" in its release.

So, time to update the list:

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