Ampio Pharma stock plummets 55% after negative late-stage trial results

Ampio Pharmaceuticals Inc. shares sank 54.8% in pre-market trade Thursday after a phase 3 trial for its osteoarthritis pain treatment missed its primary endpoint. Shares of Ampio rose 46.9% over the last three months, compared with a 0.33% rise in the S&P 500 .

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From:: Stock Market News

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