According to the complaint, during the Class Period, Elan issued materially false and misleading statements regarding the Phase II clinical results of the Company's investigational treatment for Alzheimer's disease, bapineuzumab. As a result of defendants' false statements and omissions during the Class Period, Elan ADRs traded at artificially inflated prices.
Specifically, Elan failed to disclose unfavorable results from the bapineuzumab trial in a June 17, 2008 press release regarding the study, misrepresenting the safety and efficacy of the drug to investors and analysts. As a result of the press release, Elan ADRs surged upward nearly 11% in one day. However, when the detailed Phase II results were finally disclosed, the Company's prior representations on the safety and efficacy of bapineuzumab were shown to be overblown. On that day, the price of Elan's ADRs plunged from $33.75 to $19.63.
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