Reuters: Global Markets: MediciNova asthma drug fails trial; shares crash

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MediciNova asthma drug fails trial; shares crash May 23rd 2012, 22:01 Wed May 23, 2012 6:01pm EDT (Reuters) - Biopharmaceutical company MediciNova Inc said its experimental asthma drug failed to meet the main goal of a second mid-stage trial, sending its shares down as much as 51 percent in extended trade. MediciNova, which is testing MN-221 as a treatment for acute asthma attacks not responsive to standard therapy, said the drug showed no improvement when compared with a placebo. MN-221 looks to treat the condition by bypassing constricted airways to deliver the drug directly into the lungs. It aims to improve FEV1 ratio when compared with a placebo. FEV1 ratio measures volume of air exhaled in the first second. The trial, however, demonstrated a reduction in hospital admissions when MN-221 was added to standard treatments, the company said in a statement. MediciNova, which said there were three serious adverse events in the trial, plans to continue development of the drug. Shares in the San Diego, California-based company fell 51 percent to $1.35 in extended trade. They closed at $2.75 on Wednesday on the Nasdaq.

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