http://www.marketwatch.com/story/anthera-plunges-on-drug-study-2012-06-28?siteid=yhoof2 BOSTON (MarketWatch) -- Shares of Anthera Pharmaceuticals ANTH -67.61% plunged 68% to 88 cents on Thursday, the day after the drug developer reported mixed results from a Phase IIb clinical trial for its drug blisibimod in the treatment of lupus.